refactoring of serial drivers for linux

src/fsfw_hal/linux/serial/helper.h

@@ -0,0 +1,71 @@
+#ifndef FSFW_HAL_LINUX_UART_HELPER_H_
+#define FSFW_HAL_LINUX_UART_HELPER_H_
+
+#include <linux/serial.h>
+#include <termios.h>
+
+enum class Parity { NONE, EVEN, ODD };
+
+enum class StopBits { ONE_STOP_BIT, TWO_STOP_BITS };
+
+enum class UartModes { CANONICAL, NON_CANONICAL };
+
+enum class BitsPerWord { BITS_5, BITS_6, BITS_7, BITS_8 };
+
+enum class UartBaudRate {
+  RATE_50,
+  RATE_75,
+  RATE_110,
+  RATE_134,
+  RATE_150,
+  RATE_200,
+  RATE_300,
+  RATE_600,
+  RATE_1200,
+  RATE_1800,
+  RATE_2400,
+  RATE_4800,
+  RATE_9600,
+  RATE_19200,
+  RATE_38400,
+  RATE_57600,
+  RATE_115200,
+  RATE_230400,
+  RATE_460800,
+  RATE_500000,
+  RATE_576000,
+  RATE_921600,
+  RATE_1000000,
+  RATE_1152000,
+  RATE_1500000,
+  RATE_2000000,
+  RATE_2500000,
+  RATE_3000000,
+  RATE_3500000,
+  RATE_4000000
+};
+
+namespace uart {
+
+void setMode(struct termios& options, UartModes mode);
+/**
+ * @brief   This functions adds the  baudrate specified in the uartCookie to the termios options
+ *          struct.
+ */
+void setBaudrate(struct termios& options, UartBaudRate baud);
+
+void setStopbits(struct termios& options, StopBits bits);
+
+void setBitsPerWord(struct termios& options, BitsPerWord bits);
+
+void enableRead(struct termios& options);
+
+void setParity(struct termios& options, Parity parity);
+
+void ignoreCtrlLines(struct termios& options);
+
+int readCountersAndErrors(int serialPort, serial_icounter_struct& icounter);
+
+}  // namespace uart
+
+#endif /* FSFW_HAL_LINUX_UART_HELPER_H_ */