Robin Mueller
aa2bfb7d0e
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70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
#pragma once
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#include <fsfw/devicehandlers/DeviceCommunicationIF.h>
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#include <fsfw/objectmanager/SystemObject.h>
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#include <fsfw_hal/linux/serial/SerialCookie.h>
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#include <fsfw_hal/linux/serial/helper.h>
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#include "SerialConfig.h"
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#include "fsfw/returnvalues/returnvalue.h"
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/**
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* @brief This is the communication interface to access serial ports on linux based operating
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* systems.
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*
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* @details The implementation follows the instructions from https://blog.mbedded.ninja/programming/
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* operating-systems/linux/linux-serial-ports-using-c-cpp/#disabling-canonical-mode
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*
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* @author J. Meier
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*/
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class SerialCommunicationHelper {
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public:
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SerialCommunicationHelper(SerialConfig serialCfg);
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ReturnValue_t send(const uint8_t* data, size_t dataLen);
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int rawFd() const;
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ReturnValue_t initialize();
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/**
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* @brief This function discards all data received but not read in the UART buffer.
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*/
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ReturnValue_t flushUartRxBuffer();
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/**
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* @brief This function discards all data in the transmit buffer of the UART driver.
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*/
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ReturnValue_t flushUartTxBuffer();
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/**
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* @brief This function discards both data in the transmit and receive buffer of the UART.
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*/
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ReturnValue_t flushUartTxAndRxBuf();
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private:
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SerialConfig cfg;
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int fd = 0;
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/**
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* @brief This function opens and configures a uart device by using the information stored
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* in the uart cookie.
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* @param uartCookie Pointer to uart cookie with information about the uart. Contains the
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* uart device file, baudrate, parity, stopbits etc.
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* @return The file descriptor of the configured uart.
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*/
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int configureUartPort();
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void setStopBitOptions(struct termios* options);
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/**
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* @brief This function sets options which are not configurable by the uartCookie.
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*/
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void setFixedOptions(struct termios* options);
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/**
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* @brief With this function the datasize settings are added to the termios options struct.
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*/
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void setDatasizeOptions(struct termios* options);
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};
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