eive-obsw/linux/ipcore/AxiPtmeConfig.h

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#ifndef LINUX_OBC_AXIPTMECONFIG_H_
#define LINUX_OBC_AXIPTMECONFIG_H_
#include <string>
#include "fsfw/ipc/MutexIF.h"
#include "fsfw/objectmanager/SystemObject.h"
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#include "fsfw/returnvalues/returnvalue.h"
/**
* @brief Class providing low level access to the configuration interface of the PTME.
*
* @author J. Meier
*/
class AxiPtmeConfig : public SystemObject {
public:
enum IdlePollThreshold : uint8_t {
ALWAYS = 0b000,
POLL_1 = 0b001,
POLL_4 = 0b010,
POLL_16 = 0b011,
POLL_64 = 0b100,
POLL_256 = 0b101,
POLL_1024 = 0b110,
NEVER = 0b111
};
/**
* @brief Constructor
* @param axiUio Device file of UIO belonging to the AXI configuration interface.
* @param mapNum Number of map belonging to axi configuration interface.
*/
AxiPtmeConfig(object_id_t objectId, std::string axiUio, int mapNum);
virtual ~AxiPtmeConfig();
virtual ReturnValue_t initialize() override;
/**
* @brief Will write to the bitrate configuration register. Actual generated rate depends on
* frequency of the clock connected to the bit clock input of PTME.
*/
ReturnValue_t writeCaduRateReg(uint8_t rateVal);
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uint8_t readCaduRateReg();
/**
* @brief Next to functions control the tx clock manipulator component
*
* @details If the tx clock manipulator is enabled the output clock of the PTME is manipulated
* in a way that both high and low periods in the clock signal have equal lengths.
* The default implementation of the PTME generates a clock where the high level is
* only one bit clock period long. This might be too short to match the setup and hold
* times of the S-and transceiver.
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* Default: Enables TX clock manipulator
*
*/
void enableTxclockManipulator();
void disableTxclockManipulator();
/**
* @brief The next to functions control whether data will be updated on the rising or falling edge
* of the tx clock.
* Enable inversion will update data on falling edge (not the configuration required by the
* syrlinks)
* Disable clock inversion. Data updated on rising edge.
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* Default: Inversion is disabled
*/
void enableTxclockInversion();
void disableTxclockInversion();
void enableBatPriorityBit();
void disableBatPriorityBit();
void writePollThreshold(IdlePollThreshold pollThreshold);
IdlePollThreshold readPollThreshold();
private:
// Address of register storing the bitrate configuration parameter
static const uint32_t CADU_BITRATE_REG = 0x0;
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// Address of register storing common configuration parameters
static const uint32_t COMMON_CONFIG_REG = 0x4;
static const uint32_t ADRESS_DIVIDER = 4;
enum class BitPos : uint32_t { EN_TX_CLK_MANIPULATOR = 0, INVERT_CLOCK = 1, EN_BAT_PRIORITY = 2 };
std::string axiUio;
std::string uioMap;
int mapNum = 0;
MutexIF* mutex = nullptr;
MutexIF::TimeoutType timeoutType = MutexIF::TimeoutType::WAITING;
uint32_t mutexTimeout = 20;
uint32_t* baseAddress = nullptr;
/**
* @brief Function to write to configuration registers
*
* @param writeVal Value to write
*/
void writeReg(uint32_t regOffset, uint32_t writeVal);
/**
* @brief Reads value from configuration register
*
* @param regOffset Offset of register from base address to read from
* Qparam readVal Pointer to variable where read value will be written to
*/
uint32_t readReg(uint32_t regOffset);
uint32_t readCommonCfgReg();
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void writeCommonCfgReg(uint32_t value);
/**
* @brief Sets one bit in a register
*
* @param regOffset Offset of the register where to set the bit
* @param bitVal The value of the bit to set (1 or 0)
* @param bitPos The position of the bit within the register to set
*
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* @return returnvalue::OK if successful, otherwise returnvalue::FAILED
*/
void writeBit(uint32_t regOffset, bool bitVal, BitPos bitPos);
};
#endif /* LINUX_OBC_AXIPTMECONFIG_H_ */