syrlinks handler ready for testing

linux/uart/UartComIF.h

@@ -0,0 +1,94 @@
+#ifndef BSP_Q7S_COMIF_UARTCOMIF_H_
+#define BSP_Q7S_COMIF_UARTCOMIF_H_
+
+#include <fsfw/objectmanager/SystemObject.h>
+#include <fsfw/devicehandlers/DeviceCommunicationIF.h>
+
+#include <unordered_map>
+#include <vector>
+
+#include "UartCookie.h"
+
+/**
+ * @brief 	This is the communication interface to access serial ports on linux based operating
+ *          systems.
+ *
+ * @details The implementation follows the instructions from https://blog.mbedded.ninja/programming/
+ *          operating-systems/linux/linux-serial-ports-using-c-cpp/#disabling-canonical-mode
+ *
+ * @author 	J. Meier
+ */
+class UartComIF: public DeviceCommunicationIF, public SystemObject {
+public:
+	UartComIF(object_id_t objectId);
+
+	virtual ~UartComIF();
+
+	ReturnValue_t initializeInterface(CookieIF * cookie) override;
+	ReturnValue_t sendMessage(CookieIF *cookie,const uint8_t *sendData,
+			size_t sendLen) override;
+	ReturnValue_t getSendSuccess(CookieIF *cookie) override;
+	ReturnValue_t requestReceiveMessage(CookieIF *cookie,
+	        size_t requestLen) override;
+	ReturnValue_t readReceivedMessage(CookieIF *cookie, uint8_t **buffer,
+			size_t *size) override;
+
+private:
+
+	using UartDeviceFile_t = std::string;
+
+	typedef struct UartElements {
+	    int fileDescriptor;
+		std::vector<uint8_t> replyBuffer;
+		/** Number of bytes read will be written to this variable */
+		size_t replyLen;
+	} UartElements_t;
+
+	using UartDeviceMap = std::unordered_map<UartDeviceFile_t, UartElements_t>;
+	using UartDeviceMapIter = UartDeviceMap::iterator;
+
+	/**
+	 * The uart devie map stores informations of initialized uart ports.
+	 */
+	UartDeviceMap uartDeviceMap;
+
+	/**
+	 * @brief	This function opens and configures a uart device by using the information stored
+	 *          in the uart cookie.
+	 * @param uartCookie    Pointer to uart cookie with information about the uart. Contains the
+	 *                      uart device file, baudrate, parity, stopbits etc.
+	 * @return  The file descriptor of the configured uart.
+	 */
+	int configureUartPort(UartCookie* uartCookie);
+
+	/**
+	 * @brief   This function adds the parity settings to the termios options struct.
+	 *
+	 * @param options   Pointer to termios options struct which will be modified to enable or disable
+	 *                  parity checking.
+	 * @param uartCookie    Pointer to uart cookie containing the information about the desired
+	 *                      parity settings.
+	 *
+	 */
+	void setParityOptions(struct termios* options, UartCookie* uartCookie);
+
+	void setStopBitOptions(struct termios* options, UartCookie* uartCookie);
+
+	/**
+	 * @brief   This function sets options which are not configurable by the uartCookie.
+	 */
+	void setFixedOptions(struct termios* options);
+
+	/**
+	 * @brief   With this function the datasize settings are added to the termios options struct.
+	 */
+	void setDatasizeOptions(struct termios* options, UartCookie* uartCookie);
+
+	/**
+	 * @brief   This functions adds the  baudrate specified in the uartCookie to the termios options
+	 *          struct.
+	 */
+	void configureBaudrate(struct termios* options, UartCookie* uartCookie);
+};
+
+#endif /* BSP_Q7S_COMIF_UARTCOMIF_H_ */