lishanpi/drv/uart/uart_driver.h

#ifndef __UART_DRIVER_H__
#define __UART_DRIVER_H__

#include <cstdint>
#include "bus_core.h"

enum class UartPort : uint8_t {
    _0 = 0,
    _1, _2, _3, _4, _5, _6,
    MAX
};

class USART {
public:
    USART(UartPort port, uint32_t baudrate = 115200);
    ~USART();

    USART(const USART &) = delete;
    USART &operator=(const USART &) = delete;

    RetCode send_byte(uint8_t data);
    RetCode send_data(const uint8_t *data, uint32_t len);
    RetCode receive_byte(uint8_t *data, uint32_t timeout_ms);
    void reinit(uint32_t baudrate);

    UartPort port() const { return port_; }
    bool is_initialized() const { return initialized_; }

    static void setDefault(USART *uart);
    static USART *defaultInstance() { return default_; }

private:
    UartPort port_;
    uint32_t baudrate_;
    bool initialized_ = false;

    static USART *default_;
};

extern USART uart_0;
extern USART uart_1;

#endif