Labrador/Desktop_Interface/i2cdecoder.h

80 lines
1.6 KiB
C++

#ifndef I2CDECODER_H
#define I2CDECODER_H
#include "isobuffer.h"
#include "isobufferbuffer.h"
#include <QObject>
#include <QTimer>
#include <mutex>
namespace i2c
{
enum class transmissionState: uint8_t
{
unknown,
idle,
address,
data
};
enum class edge: uint8_t
{
rising,
falling,
held_high,
held_low
};
constexpr uint8_t addressBitStreamLength = 9;
constexpr uint8_t dataBitStreamLength = 9;
constexpr uint32_t I2C_BUFFER_LENGTH = 4096;
class i2cDecoder : public QObject
{
Q_OBJECT
public:
explicit i2cDecoder(isoBuffer* sda_in, isoBuffer* scl_in, QPlainTextEdit* console_in);
~i2cDecoder();
// misc
isoBuffer* sda;
isoBuffer* scl;
QPlainTextEdit* console;
isoBufferBuffer* serialBuffer = nullptr;
std::mutex mutex;
QTimer *updateTimer;
// State vars
uint8_t currentSdaValue = 0;
uint8_t previousSdaValue = 0;
uint8_t currentSclValue = 0;
uint8_t previousSclValue = 0;
uint64_t serialPtr_bit = 0;
transmissionState state = transmissionState::unknown;
bool consoleStateInvalid;
// Data Transmission
uint8_t currentBitIndex = 0;
uint16_t currentBitStream;
// Member functions
void updateBitValues();
void runStateMachine();
void run();
int serialDistance(isoBuffer* buffer);
edge edgeDetection(uint8_t current, uint8_t prev);
void decodeAddress(edge sdaEdge, edge sclEdge);
void decodeData(edge sdaEdge, edge sclEdge);
void startCondition();
void stopCondition();
void reset();
signals:
public slots:
void updateConsole();
};
} // Namespace i2c
#endif // UARTSTYLEDECODER_H