Re-work MPSoC handler module

linux/payload/SerialCommunicationHelper.h

@@ -0,0 +1,69 @@
+#pragma once
+
+#include <fsfw/devicehandlers/DeviceCommunicationIF.h>
+#include <fsfw/objectmanager/SystemObject.h>
+#include <fsfw_hal/linux/serial/SerialCookie.h>
+#include <fsfw_hal/linux/serial/helper.h>
+
+#include "SerialConfig.h"
+#include "fsfw/returnvalues/returnvalue.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 SerialCommunicationHelper {
+ public:
+  SerialCommunicationHelper(SerialConfig serialCfg);
+
+  ReturnValue_t send(const uint8_t* data, size_t dataLen);
+
+  int rawFd() const;
+
+  ReturnValue_t initialize();
+
+  /**
+   * @brief   This function discards all data received but not read in the UART buffer.
+   */
+  ReturnValue_t flushUartRxBuffer();
+
+  /**
+   * @brief   This function discards all data in the transmit buffer of the UART driver.
+   */
+  ReturnValue_t flushUartTxBuffer();
+
+  /**
+   * @brief   This function discards both data in the transmit and receive buffer of the UART.
+   */
+  ReturnValue_t flushUartTxAndRxBuf();
+
+ private:
+  SerialConfig cfg;
+  int fd = 0;
+
+  /**
+   * @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();
+
+  void setStopBitOptions(struct termios* options);
+
+  /**
+   * @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);
+};