SoapyRadioberry.hpp

#include <SoapySDR/Device.hpp>
#include <SoapySDR/Logger.hpp>
#include <SoapySDR/Formats.hpp>

#include <stdio.h>	
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <memory>
#include <string.h>
#include <mutex>
#include <cstring>
#include "radioberry_ioctl.h"
#include "i2c.h"

#define TX_MAX 4800
#define TX_MAX_BUFFER (TX_MAX * 8)

typedef enum radioberrysdrStreamFormat {
	RADIOBERRY_SDR_CF32,
	RADIOBERRY_SDR_CS16
} radioberrysdrStreamFormat;

class sdr_stream
{
  public:
	sdr_stream(int dir)
	{
		direction = dir;
	}
	int get_direction() { return direction; }
	void set_stream_format(radioberrysdrStreamFormat sf) { streamFormat = sf; };
	radioberrysdrStreamFormat get_stream_format() { return streamFormat; };

  private:
	int direction;
	radioberrysdrStreamFormat streamFormat;
};



class SoapyRadioberry : public SoapySDR::Device
{

  public:
	SoapyRadioberry(const SoapySDR::Kwargs &args);
	~SoapyRadioberry();

	/*******************************************************************
		 * Identification API
		 ******************************************************************/

	std::string getDriverKey(void) const;

	std::string getHardwareKey(void) const;

	SoapySDR::Kwargs getHardwareInfo(void) const;

	/*******************************************************************
		 * Channels API
		 ******************************************************************/

	size_t getNumChannels(const int direction) const;

	bool getFullDuplex(const int direction, const size_t channel) const;

	/*******************************************************************
		 * Stream API
		 ******************************************************************/
	SoapySDR::RangeList getSampleRateRange(const int direction, const size_t channel) const;

	std::vector<std::string> getStreamFormats(const int direction, const size_t channel) const;

	std::string getNativeStreamFormat(const int direction, const size_t channel, double &fullScale) const;

	SoapySDR::ArgInfoList getStreamArgsInfo(const int direction, const size_t channel) const;

	void closeStream(SoapySDR::Stream *stream);

	SoapySDR::Stream *setupStream(
		const int direction,
		const std::string &format,
		const std::vector<size_t> &channels = std::vector<size_t>(),
		const SoapySDR::Kwargs &args = SoapySDR::Kwargs());

	int readStream(
		SoapySDR::Stream *stream,
		void *const *buffs,
		const size_t numElems,
		int &flags,
		long long &timeNs,
		const long timeoutUs = 100000);

	int writeStream(
		SoapySDR::Stream *stream,
		const void *const *buffs,
		const size_t numElems,
		int &flags,
		const long long timeNs = 0,
		const long timeoutUs = 100000);

	/*******************************************************************
		 * Sample Rate API
		 ******************************************************************/

	void setSampleRate(const int direction, const size_t channel, const double rate);

	double getBandwidth(const int direction, const size_t channel) const;

	std::vector<double> listBandwidths(const int direction, const size_t channel) const;
	std::vector<double> listSampleRates(const int direction, const size_t channel) const;

	/*******************************************************************
		 * Frequency API
		 ******************************************************************/

	void setFrequency(
		const int direction,
		const size_t channel,
		const double frequency,
		const SoapySDR::Kwargs &args = SoapySDR::Kwargs());

	SoapySDR::RangeList getFrequencyRange(const int direction, const size_t channel) const;

	/*******************************************************************
		 * Antenna API
		 ******************************************************************/

	std::vector<std::string> listAntennas(const int direction, const size_t channel) const;

	/*******************************************************************
		 * Gain API
		 ******************************************************************/

	std::vector<std::string> listGains(const int direction, const size_t channel) const;

	void setGain(const int direction, const size_t channel, const double value);

	SoapySDR::Range getGainRange(const int direction, const size_t channel) const;

	void controlRadioberry(uint32_t command, uint32_t command_data);

	/*******************************************************************
	 * I2C API
	 ******************************************************************/

	std::string readI2C(const int addr, const size_t numBytes);
	void writeI2C(const int addr, const std::string &data);
	
	private:
	
	int			fd_rb;	
	double		sample_rate;
	int			rx_frequency;
	int			no_channels;	
	struct rb_info_arg_t rb_control;
	std::mutex	send_command;
	std::vector<sdr_stream *> streams;
	std::unique_ptr<rpihw::driver::i2c> i2c_ptr;
	bool i2c_available;
	bool mox;
};