add some code

managed_components/78__esp-ml307/include/at_uart.h

@@ -0,0 +1,123 @@
+#ifndef _AT_UART_H_
+#define _AT_UART_H_
+
+#include <string>
+#include <vector>
+#include <functional>
+#include <mutex>
+#include <list>
+#include <cstdlib>
+#include <memory>
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+#include <freertos/queue.h>
+#include <freertos/event_groups.h>
+#include <driver/gpio.h>
+#include <driver/uart.h>
+
+// UART事件定义
+#define AT_EVENT_DATA_AVAILABLE BIT1
+#define AT_EVENT_COMMAND_DONE   BIT2
+#define AT_EVENT_COMMAND_ERROR  BIT3
+
+// 默认配置
+#define UART_NUM                UART_NUM_1
+
+// AT命令参数值结构
+struct AtArgumentValue {
+    enum class Type { String, Int, Double };
+    Type type;
+    std::string string_value;
+    int int_value;
+    double double_value;
+    
+    std::string ToString() const {
+        switch (type) {
+            case Type::String:
+                return "\"" + string_value + "\"";
+            case Type::Int:
+                return std::to_string(int_value);
+            case Type::Double:
+                return std::to_string(double_value);
+            default:
+                return "";
+        }
+    }
+};
+
+// 数据接收回调函数类型
+typedef std::function<void(const std::string& command, const std::vector<AtArgumentValue>& arguments)> UrcCallback;
+
+class AtUart {
+public:
+    // 构造函数
+    AtUart(gpio_num_t tx_pin, gpio_num_t rx_pin, gpio_num_t dtr_pin = GPIO_NUM_NC);
+    ~AtUart();
+
+    // 初始化和配置
+    void Initialize();
+    
+    // 波特率管理
+    bool SetBaudRate(int new_baud_rate);
+    int GetBaudRate() const { return baud_rate_; }
+    
+    // 数据发送
+    bool SendCommand(const std::string& command, size_t timeout_ms = 1000, bool add_crlf = true);
+    bool SendCommandWithData(const std::string& command, size_t timeout_ms = 1000, bool add_crlf = true, const char* data = nullptr, size_t data_length = 0);
+    const std::string& GetResponse() const { return response_; }
+    int GetCmeErrorCode() const { return cme_error_code_; }
+    
+    // 回调管理
+    std::list<UrcCallback>::iterator RegisterUrcCallback(UrcCallback callback);
+    void UnregisterUrcCallback(std::list<UrcCallback>::iterator iterator);
+    
+    // 控制接口
+    void SetDtrPin(bool high);
+    bool IsInitialized() const { return initialized_; }
+
+    std::string EncodeHex(const std::string& data);
+    std::string DecodeHex(const std::string& data);
+    void EncodeHexAppend(std::string& dest, const char* data, size_t length);
+    void DecodeHexAppend(std::string& dest, const char* data, size_t length);
+
+private:
+    // 配置参数
+    gpio_num_t tx_pin_;
+    gpio_num_t rx_pin_;
+    gpio_num_t dtr_pin_;
+    uart_port_t uart_num_;
+    int baud_rate_;
+    bool initialized_;
+    int cme_error_code_ = 0;
+    std::string response_;
+    bool wait_for_response_ = false;
+    std::mutex command_mutex_;
+    std::mutex mutex_;
+    
+    // FreeRTOS 对象
+    TaskHandle_t event_task_handle_ = nullptr;
+    TaskHandle_t receive_task_handle_ = nullptr;
+    QueueHandle_t event_queue_handle_;
+    EventGroupHandle_t event_group_handle_;
+    
+    std::string rx_buffer_;
+    
+    // 回调函数
+    std::list<UrcCallback> urc_callbacks_;
+    
+    // 内部方法
+    void EventTask();
+    void ReceiveTask();
+    bool ParseResponse();
+    bool DetectBaudRate();
+    // 处理 AT 命令
+    void HandleCommand(const char* command);
+    // 处理 URC
+    void HandleUrc(const std::string& command, const std::vector<AtArgumentValue>& arguments);
+    bool SendData(const char* data, size_t length);
+
+    // 静态任务函数
+    static void EventTaskWrapper(void* arg);
+};
+
+#endif // _AT_UART_H_