Robin Mueller
5cc7331e90
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112 lines
4.1 KiB
C++
112 lines
4.1 KiB
C++
#include "UartTestClass.h"
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#if defined(RASPBERRY_PI)
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#include "rpiConfig.h"
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#elif defined(XIPHOS_Q7S)
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#include "q7sConfig.h"
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#endif
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#include <errno.h> // Error integer and strerror() function
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#include <fcntl.h> // Contains file controls like O_RDWR
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#include <unistd.h> // write(), read(), close()
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#include "fsfw/serviceinterface/ServiceInterface.h"
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#include "lwgps/lwgps.h"
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#define GPS_REPLY_WIRETAPPING 0
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UartTestClass::UartTestClass(object_id_t objectId) : TestTask(objectId) {}
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ReturnValue_t UartTestClass::initialize() {
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#if RPI_TEST_GPS_DEVICE == 1
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int result = lwgps_init(&gpsData);
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if (result == 0) {
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sif::warning << "lwgps_init error: " << result << std::endl;
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}
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/* Get file descriptor */
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serialPort = open("/dev/serial0", O_RDWR);
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if (serialPort < 0) {
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sif::warning << "open call failed with error [" << errno << ", " << strerror(errno)
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<< std::endl;
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}
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/* Setting up UART parameters */
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tty.c_cflag &= ~PARENB; // Clear parity bit
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tty.c_cflag &= ~CSTOPB; // Clear stop field, only one stop bit used in communication
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tty.c_cflag &= ~CSIZE; // Clear all the size bits
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tty.c_cflag |= CS8; // 8 bits per byte
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tty.c_cflag &= ~CRTSCTS; // Disable RTS/CTS hardware flow control
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tty.c_cflag |= CREAD | CLOCAL; // Turn on READ & ignore ctrl lines (CLOCAL = 1)
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// Use canonical mode for GPS device
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tty.c_lflag |= ICANON;
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tty.c_lflag &= ~ECHO; // Disable echo
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tty.c_lflag &= ~ECHOE; // Disable erasure
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tty.c_lflag &= ~ECHONL; // Disable new-line echo
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tty.c_lflag &= ~ISIG; // Disable interpretation of INTR, QUIT and SUSP
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tty.c_iflag &= ~(IXON | IXOFF | IXANY); // Turn off s/w flow ctrl
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tty.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR |
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ICRNL); // Disable any special handling of received bytes
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tty.c_oflag &= ~OPOST; // Prevent special interpretation of output bytes (e.g. newline chars)
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tty.c_oflag &= ~ONLCR; // Prevent conversion of newline to carriage return/line feed
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// Non-blocking mode
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tty.c_cc[VTIME] = 0;
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tty.c_cc[VMIN] = 0;
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cfsetispeed(&tty, B9600);
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cfsetospeed(&tty, B9600);
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if (tcsetattr(serialPort, TCSANOW, &tty) != 0) {
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sif::warning << "tcsetattr call failed with error [" << errno << ", " << strerror(errno)
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<< std::endl;
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;
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}
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// Flush received and unread data. Those are old NMEA strings which are not relevant anymore
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tcflush(serialPort, TCIFLUSH);
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#endif
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return HasReturnvaluesIF::RETURN_OK;
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}
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ReturnValue_t UartTestClass::performOneShotAction() {
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#if RPI_TEST_GPS_DEVICE == 1
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#endif
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return HasReturnvaluesIF::RETURN_OK;
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}
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ReturnValue_t UartTestClass::performPeriodicAction() {
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#if RPI_TEST_GPS_DEVICE == 1
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int bytesRead = 0;
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do {
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bytesRead = read(serialPort, reinterpret_cast<void*>(recBuf.data()),
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static_cast<unsigned int>(recBuf.size()));
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if (bytesRead < 0) {
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sif::warning << "UartTestClass::performPeriodicAction: read call failed with error [" << errno
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<< ", " << strerror(errno) << "]" << std::endl;
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break;
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} else if (bytesRead >= static_cast<int>(recBuf.size())) {
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sif::debug << "UartTestClass::performPeriodicAction: "
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"recv buffer might not be large enough"
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<< std::endl;
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} else if (bytesRead > 0) {
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// pass data to lwgps for processing
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#if GPS_REPLY_WIRETAPPING == 1
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sif::info << recBuf.data() << std::endl;
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#endif
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int result = lwgps_process(&gpsData, recBuf.data(), bytesRead);
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if (result == 0) {
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sif::warning << "UartTestClass::performPeriodicAction: lwgps_process error" << std::endl;
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}
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recvCnt++;
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if (recvCnt == 6) {
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recvCnt = 0;
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sif::info << "GPS Data" << std::endl;
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// Print messages
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printf("Valid status: %d\n", gpsData.is_valid);
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printf("Latitude: %f degrees\n", gpsData.latitude);
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printf("Longitude: %f degrees\n", gpsData.longitude);
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printf("Altitude: %f meters\n", gpsData.altitude);
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}
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}
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} while (bytesRead > 0);
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#endif
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return HasReturnvaluesIF::RETURN_OK;
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}
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