rtos_hw_i2c.h

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#pragma once
 
#include "hw_i2c.h"
#include "hw/dma/hw_dma.h"
#include "pico/i2c_slave.h"
#include "pico/stdlib.h"
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
#include "semphr.h"
#include "hardware/irq.h"

#define BURST_SIZE 16

class rtos_HW_I2C_Master : public HW_I2C_Master
{
private:
public:
    HW_DMA *tx_dma;

    SemaphoreHandle_t i2c_tx_FIFO_empty;
    SemaphoreHandle_t i2c_access_mutex;

    rtos_HW_I2C_Master(struct_ConfigMasterI2C cfg);

    ~rtos_HW_I2C_Master();

    struct_I2CXferResult burst_byte_write(uint8_t slave_address,
                                          uint8_t mem_addr,
                                          uint8_t *source_address,
                                          size_t length);

    struct_I2CXferResult repeat_byte_write(uint8_t slave_address,
                                           uint8_t mem_addr,
                                           uint8_t pattern,
                                           size_t length);

    struct_I2CXferResult burst_byte_read(uint8_t slave_address,
                                         uint8_t mem_address,
                                         uint8_t *destination_address,
                                         size_t length);

    void i2c_dma_isr();
};