diff options
Diffstat (limited to 'include/serial')
| -rw-r--r-- | include/serial/SerialPort.cpp | 131 | ||||
| -rw-r--r-- | include/serial/SerialPort.hpp | 31 |
2 files changed, 162 insertions, 0 deletions
diff --git a/include/serial/SerialPort.cpp b/include/serial/SerialPort.cpp new file mode 100644 index 0000000..2fff251 --- /dev/null +++ b/include/serial/SerialPort.cpp @@ -0,0 +1,131 @@ +/*
+* Author: Manash Kumar Mandal
+* Modified Library introduced in Arduino Playground which does not work
+* This works perfectly
+* LICENSE: MIT
+*/
+
+#include "SerialPort.hpp"
+
+SerialPort::SerialPort(const char *portName, int BAUD)
+{
+ this->connected = false;
+
+ this->handler = CreateFileA(static_cast<LPCSTR>(portName),
+ GENERIC_READ | GENERIC_WRITE,
+ 0,
+ NULL,
+ OPEN_EXISTING,
+ FILE_ATTRIBUTE_NORMAL,
+ NULL);
+ if (this->handler == INVALID_HANDLE_VALUE)
+ {
+ if (GetLastError() == ERROR_FILE_NOT_FOUND)
+ {
+ std::cerr << "ERROR: Handle was not attached.Reason : " << portName << " not available\n";
+ }
+ else
+ {
+ std::cerr << "ERROR!!!\n";
+ }
+ }
+ else
+ {
+ DCB dcbSerialParameters = {0};
+
+ if (!GetCommState(this->handler, &dcbSerialParameters))
+ {
+ std::cerr << "Failed to get current serial parameters\n";
+ }
+ else
+ {
+ dcbSerialParameters.BaudRate = BAUD;
+ dcbSerialParameters.ByteSize = 8;
+ dcbSerialParameters.StopBits = ONESTOPBIT;
+ dcbSerialParameters.Parity = NOPARITY;
+ dcbSerialParameters.fDtrControl = DTR_CONTROL_ENABLE;
+
+ if (!SetCommState(handler, &dcbSerialParameters))
+ {
+ std::cout << "ALERT: could not set serial port parameters\n";
+ }
+ else
+ {
+ this->connected = true;
+ PurgeComm(this->handler, PURGE_RXCLEAR | PURGE_TXCLEAR);
+ Sleep(ARDUINO_WAIT_TIME);
+ }
+ }
+ }
+}
+
+SerialPort::~SerialPort()
+{
+ if (this->connected)
+ {
+ this->connected = false;
+ CloseHandle(this->handler);
+ }
+}
+
+// Reading bytes from serial port to buffer;
+// returns read bytes count, or if error occurs, returns 0
+int SerialPort::readSerialPort(const char *buffer, unsigned int buf_size)
+{
+ DWORD bytesRead{};
+ unsigned int toRead = 0;
+
+ ClearCommError(this->handler, &this->errors, &this->status);
+
+ if (this->status.cbInQue > 0)
+ {
+ if (this->status.cbInQue > buf_size)
+ {
+ toRead = buf_size;
+ }
+ else
+ {
+ toRead = this->status.cbInQue;
+ }
+ }
+
+ memset((void*) buffer, 0, buf_size);
+
+ if (ReadFile(this->handler, (void*) buffer, toRead, &bytesRead, NULL))
+ {
+ return bytesRead;
+ }
+
+ return 0;
+}
+
+// Sending provided buffer to serial port;
+// returns true if succeed, false if not
+bool SerialPort::writeSerialPort(const char *buffer, unsigned int buf_size)
+{
+ DWORD bytesSend;
+
+ if (!WriteFile(this->handler, (void*) buffer, buf_size, &bytesSend, 0))
+ {
+ ClearCommError(this->handler, &this->errors, &this->status);
+ return false;
+ }
+
+ return true;
+}
+
+// Checking if serial port is connected
+bool SerialPort::isConnected()
+{
+ if (!ClearCommError(this->handler, &this->errors, &this->status))
+ {
+ this->connected = false;
+ }
+
+ return this->connected;
+}
+
+void SerialPort::closeSerial()
+{
+ CloseHandle(this->handler);
+}
\ No newline at end of file diff --git a/include/serial/SerialPort.hpp b/include/serial/SerialPort.hpp new file mode 100644 index 0000000..a207d0c --- /dev/null +++ b/include/serial/SerialPort.hpp @@ -0,0 +1,31 @@ +/*
+* Author: Manash Kumar Mandal
+* Modified Library introduced in Arduino Playground which does not work
+* This works perfectly
+* LICENSE: MIT
+*/
+
+#pragma once
+
+#define ARDUINO_WAIT_TIME 2000
+#define MAX_DATA_LENGTH 255
+
+#include <windows.h>
+#include <iostream>
+
+class SerialPort
+{
+private:
+ HANDLE handler;
+ bool connected;
+ COMSTAT status;
+ DWORD errors;
+public:
+ explicit SerialPort(const char *portName, int BAUD);
+ ~SerialPort();
+
+ int readSerialPort(const char *buffer, unsigned int buf_size);
+ bool writeSerialPort(const char *buffer, unsigned int buf_size);
+ bool isConnected();
+ void closeSerial();
+};
\ No newline at end of file |