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-
-
- #include <stdio.h>
- #include <windows.h>
-
- #define BAUD CBR_38400;
-
- HANDLE hSerial = INVALID_HANDLE_VALUE;
-
-
- int serialOpen(char *port) {
- DCB dcbSerialParams = {0};
- COMMTIMEOUTS timeouts = {0};
-
- hSerial = CreateFile(port, GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
-
- if (hSerial == INVALID_HANDLE_VALUE) {
- return -1;
- }
-
-
- dcbSerialParams.DCBlength = sizeof(dcbSerialParams);
- if (!GetCommState(hSerial, &dcbSerialParams)) {
- CloseHandle(hSerial);
- hSerial = INVALID_HANDLE_VALUE;
- return -1;
- }
- dcbSerialParams.BaudRate = BAUD;
- dcbSerialParams.ByteSize = 8;
- dcbSerialParams.StopBits = ONESTOPBIT;
- dcbSerialParams.Parity = NOPARITY;
- if (!SetCommState(hSerial, &dcbSerialParams)) {
- CloseHandle(hSerial);
- hSerial = INVALID_HANDLE_VALUE;
- return -1;
- }
-
- timeouts.ReadIntervalTimeout = 1000;
- timeouts.ReadTotalTimeoutConstant = 1000;
- timeouts.ReadTotalTimeoutMultiplier = 1000;
- timeouts.WriteTotalTimeoutConstant = 1000;
- timeouts.WriteTotalTimeoutMultiplier = 1000;
-
- if (!SetCommTimeouts(hSerial, &timeouts)) {
- CloseHandle(hSerial);
- hSerial = INVALID_HANDLE_VALUE;
- return -1;
- }
-
- return 0;
- }
-
-
- ssize_t serialWrite(char *data, size_t length) {
- DWORD dwBytesWritten = 0;
- if (!WriteFile(hSerial, data, length, &dwBytesWritten, NULL)) {
- return -1;
- }
- return dwBytesWritten;
-
- }
-
-
- ssize_t serialRead(char *data, size_t length) {
- DWORD dwBytesRead = 0;
- if (!ReadFile(hSerial, data, length, &dwBytesRead, NULL)) {
- return -1;
- }
- return dwBytesRead;
- }
-
-
- void serialClose(void) {
- CloseHandle(hSerial);
- hSerial = INVALID_HANDLE_VALUE;
- }
-
- int availableSerialPorts(char *ports) {
- int i, c = 0;
- char portName[6];
- for (i = 0; i < 20; i++) {
- sprintf(portName, "COM%d", i + 1);
- if (serialOpen(portName) == 0) {
-
- ports[i] = 1;
- c++;
- serialClose();
- } else {
- ports[i] = 0;
- }
- }
- return c;
- }
-
-
- char** getSerialPorts(const char *search) {
- int i, num, c = 0, s;
- char ports[20];
- char **portList;
-
- num = availableSerialPorts(ports);
- portList = (char **)malloc((num + 1) * sizeof(char *));
- for (i = 0; i < 20; i++) {
-
- if (ports[i] != 0) {
- if (i < 9) {
- s = 5;
- } else {
- s = 6;
- }
- portList[c] = (char *)malloc(s * sizeof(char));
- sprintf(portList[c], "COM%d", i + 1);
- c++;
- }
- }
- portList[c] = NULL;
-
- return portList;
- }
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