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extend uart helper a bit

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This commit is contained in:
Robin Müller
2022-11-04 11:08:23 +01:00
parent 84b9d1ce21
commit 672fca5169
6 changed files with 59 additions and 38 deletions
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19
src/fsfw_hal/linux/uart/UartComIF.cpp
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@ -88,7 +88,7 @@ int UartComIF::configureUartPort(UartCookie* uartCookie) {
return fd;
}
setParityOptions(&options, uartCookie);
uart::setParity(options, uartCookie->getParity());
setStopBitOptions(&options, uartCookie);
setDatasizeOptions(&options, uartCookie);
setFixedOptions(&options);
@ -114,23 +114,6 @@ int UartComIF::configureUartPort(UartCookie* uartCookie) {
return fd;
}
void UartComIF::setParityOptions(struct termios* options, UartCookie* uartCookie) {
/* Clear parity bit */
options->c_cflag &= ~PARENB;
switch (uartCookie->getParity()) {
case Parity::EVEN:
options->c_cflag |= PARENB;
options->c_cflag &= ~PARODD;
break;
case Parity::ODD:
options->c_cflag |= PARENB;
options->c_cflag |= PARODD;
break;
default:
break;
}
}
void UartComIF::setStopBitOptions(struct termios* options, UartCookie* uartCookie) {
/* Clear stop field. Sets stop bit to one bit */
options->c_cflag &= ~CSTOPB;

11
src/fsfw_hal/linux/uart/UartComIF.h
View File

@ -78,17 +78,6 @@ class UartComIF : public DeviceCommunicationIF, public SystemObject {
*/
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);
/**

44
src/fsfw_hal/linux/uart/helper.cpp
View File

@ -115,6 +115,50 @@ void uart::setBaudrate(struct termios& options, UartBaudRate baud) {
}
}
void uart::setBitsPerWord(struct termios& options, BitsPerWord bits) {
options.c_cflag &= ~CSIZE; // Clear all the size bits
if (bits == BitsPerWord::BITS_5) {
options.c_cflag |= CS5;
} else if (bits == BitsPerWord::BITS_6) {
options.c_cflag |= CS6;
} else if (bits == BitsPerWord::BITS_7) {
options.c_cflag |= CS7;
} else if (bits == BitsPerWord::BITS_8) {
options.c_cflag |= CS8;
}
}
void uart::enableRead(struct termios& options) { options.c_cflag |= CREAD; }
void uart::ignoreCtrlLines(struct termios& options) { options.c_cflag |= CLOCAL; }
void uart::setParity(struct termios& options, Parity parity) {
/* Clear parity bit */
options.c_cflag &= ~PARENB;
switch (parity) {
case Parity::EVEN:
options.c_cflag |= PARENB;
options.c_cflag &= ~PARODD;
break;
case Parity::ODD:
options.c_cflag |= PARENB;
options.c_cflag |= PARODD;
break;
default:
break;
}
}
int uart::readCountersAndErrors(int serialPort, serial_icounter_struct& icounter) {
return ioctl(serialPort, TIOCGICOUNT, &icounter);
}
void uart::setStopbits(struct termios& options, StopBits bits) {
if (bits == StopBits::TWO_STOP_BITS) {
// Use two stop bits
options.c_cflag |= CSTOPB;
} else {
// Clear stop field, only one stop bit used in communication
options.c_cflag &= ~CSTOPB;
}
}

10
src/fsfw_hal/linux/uart/helper.h
View File

@ -54,6 +54,16 @@ void setMode(struct termios& options, UartModes mode);
*/
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