mirror of https://github.com/EspoTek/Labrador.git
79 lines
1.5 KiB
C++
79 lines
1.5 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);
|
|
// 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
|