1

armor/include/CSerialPort/SerialPort.h

@@ -0,0 +1,82 @@
+#ifndef CSERIALPORT_SERIALPORT_H
+#define CSERIALPORT_SERIALPORT_H
+
+#include <cstdint>
+#include <cstring>
+
+namespace itas109 {
+
+enum class Parity {
+    ParityNone  = 0,
+    ParityOdd   = 1,
+    ParityEven  = 2,
+};
+
+enum class DataBits {
+    DataBits5 = 5,
+    DataBits6 = 6,
+    DataBits7 = 7,
+    DataBits8 = 8,
+};
+
+enum class StopBits {
+    StopOne     = 1,
+    StopOneAndHalf = 3,
+    StopTwo     = 2,
+};
+
+enum class FlowControl {
+    FlowNone     = 0,
+    FlowHardware = 1,
+    FlowSoftware = 2,
+};
+
+class CSerialPort {
+public:
+    CSerialPort();
+    ~CSerialPort();
+
+    // 初始化串口参数（不打开）
+    void init(const char* portName,
+              int         baudRate    = 115200,
+              Parity      parity      = Parity::ParityNone,
+              DataBits    dataBits    = DataBits::DataBits8,
+              StopBits    stopBits    = StopBits::StopOne,
+              FlowControl flowControl = FlowControl::FlowNone,
+              int         readTimeoutMs = 1000);
+
+    // 打开串口，成功返回 true
+    bool open();
+
+    // 关闭串口
+    void close();
+
+    // 写数据，返回实际写入字节数（失败返回 -1）
+    int writeData(const uint8_t* data, size_t length);
+
+    // 读数据，返回实际读取字节数（失败返回 -1）
+    int readData(uint8_t* buffer, size_t maxLength);
+
+    // 返回最近一次错误码
+    int getLastError() const { return m_lastError; }
+
+private:
+    char        m_portName[256];
+    int         m_baudRate;
+    Parity      m_parity;
+    DataBits    m_dataBits;
+    StopBits    m_stopBits;
+    FlowControl m_flowControl;
+    int         m_readTimeoutMs;
+
+    int  m_fd;          // 文件描述符
+    int  m_lastError;
+    bool m_isOpen;
+
+    // termios 波特率映射
+    static int toBaudRate(int baud);
+};
+
+} // namespace itas109
+
+#endif // CSERIALPORT_SERIALPORT_H