| 1 | \r |
| 2 | #include "__serial.h"\r |
| 3 | \r |
| 4 | HANDLE SerialPort = NULL; // Handle of SerialPort itself.\r |
| 5 | \r |
| 6 | BOOL SerialOpen(int port, int baud)\r |
| 7 | {\r |
| 8 | HANDLE Comport;\r |
| 9 | DCB myDCB;\r |
| 10 | COMMTIMEOUTS CTout;\r |
| 11 | char str[100];\r |
| 12 | \r |
| 13 | if (port > 9)\r |
| 14 | sprintf(str, "\\\\.\\COM%d", port);\r |
| 15 | else\r |
| 16 | sprintf(str, "COM%d", port);\r |
| 17 | \r |
| 18 | // Open the serial port\r |
| 19 | if ((Comport = CreateFile(str, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE)\r |
| 20 | return FALSE;\r |
| 21 | \r |
| 22 | // Configure Serial port (Setup Comm)\r |
| 23 | \r |
| 24 | // Buffer sizes\r |
| 25 | if (!SetupComm(Comport, 128, 128))\r |
| 26 | return FALSE;\r |
| 27 | \r |
| 28 | // Setup DCB using current values\r |
| 29 | if (!GetCommState(Comport, &myDCB))\r |
| 30 | return FALSE;\r |
| 31 | \r |
| 32 | myDCB.fInX = FALSE; // Turn off xon/xoff handler\r |
| 33 | myDCB.fOutX = FALSE;\r |
| 34 | myDCB.fOutxDsrFlow = FALSE;\r |
| 35 | myDCB.fOutxCtsFlow = FALSE; // no hardware flow control.\r |
| 36 | myDCB.BaudRate = baud;\r |
| 37 | myDCB.DCBlength = sizeof(DCB);\r |
| 38 | myDCB.fBinary = 1;\r |
| 39 | myDCB.fParity = 0;\r |
| 40 | myDCB.fDtrControl = DTR_CONTROL_DISABLE;\r |
| 41 | myDCB.fDsrSensitivity = 0;\r |
| 42 | myDCB.fTXContinueOnXoff = 1;\r |
| 43 | myDCB.fNull = 0;\r |
| 44 | myDCB.fRtsControl = RTS_CONTROL_DISABLE;\r |
| 45 | myDCB.fDummy2 = 0;\r |
| 46 | myDCB.wReserved = 0;\r |
| 47 | myDCB.Parity = NOPARITY;\r |
| 48 | myDCB.StopBits = ONESTOPBIT;\r |
| 49 | myDCB.wReserved1 = 0;\r |
| 50 | myDCB.ByteSize = 8;\r |
| 51 | \r |
| 52 | if (!SetCommState(Comport, &myDCB))\r |
| 53 | return FALSE;\r |
| 54 | \r |
| 55 | // Set timeouts\r |
| 56 | CTout.ReadIntervalTimeout = 0xffffffff;\r |
| 57 | CTout.ReadTotalTimeoutMultiplier = 0;\r |
| 58 | CTout.ReadTotalTimeoutConstant = 0;\r |
| 59 | CTout.WriteTotalTimeoutMultiplier = 0;\r |
| 60 | CTout.WriteTotalTimeoutConstant = 5000; // don't hang if CTS is locked, for example\r |
| 61 | \r |
| 62 | SetCommTimeouts(Comport, &CTout);\r |
| 63 | EscapeCommFunction(Comport, SETDTR);\r |
| 64 | PurgeComm(Comport, PURGE_TXCLEAR | PURGE_RXCLEAR);\r |
| 65 | \r |
| 66 | SerialPort = Comport;\r |
| 67 | \r |
| 68 | return TRUE;\r |
| 69 | }\r |
| 70 | \r |
| 71 | void SerialClose(void)\r |
| 72 | {\r |
| 73 | if (SerialPort == NULL) return;\r |
| 74 | \r |
| 75 | PurgeComm(SerialPort, PURGE_TXCLEAR | PURGE_RXCLEAR);\r |
| 76 | CloseHandle(SerialPort);\r |
| 77 | \r |
| 78 | SerialPort = NULL;\r |
| 79 | }\r |
| 80 | \r |
| 81 | BOOL SerialSendChar(int c)\r |
| 82 | {\r |
| 83 | DWORD cr;\r |
| 84 | if(WriteFile(SerialPort, &c, 1, (LPDWORD)&cr, NULL) && cr)\r |
| 85 | return TRUE;\r |
| 86 | else\r |
| 87 | return FALSE;\r |
| 88 | }\r |
| 89 | \r |
| 90 | int SerialIsOpen(void)\r |
| 91 | {\r |
| 92 | return (SerialPort != NULL);\r |
| 93 | }\r |
| 94 | \r |
| 95 | int SerialGetChar(void)\r |
| 96 | {\r |
| 97 | uint8 ch;\r |
| 98 | DWORD cr;\r |
| 99 | if (SerialPort != NULL) {\r |
| 100 | if (ReadFile(SerialPort, &ch, 1, (LPDWORD)&cr, NULL) && cr)\r |
| 101 | return (int)ch;\r |
| 102 | }\r |
| 103 | return EOF;\r |
| 104 | }\r |
| 105 | \r |
| 106 | void SendCmd(uint8 *cmd, int size)\r |
| 107 | {\r |
| 108 | int i;\r |
| 109 | for(i=0; i<size; i++) {\r |
| 110 | SerialSendChar(cmd[i]);\r |
| 111 | }\r |
| 112 | }\r |
| 113 | \r |
| 114 | int ReadResp(uint8 *resp, int size)\r |
| 115 | {\r |
| 116 | int i = 0, sum = 0, data;\r |
| 117 | while(i < size) {\r |
| 118 | while ((data = SerialGetChar()) == EOF) {}\r |
| 119 | resp[i] = data & 0xff;\r |
| 120 | sum += (data & 0xff);\r |
| 121 | i++;\r |
| 122 | }\r |
| 123 | return sum;\r |
| 124 | }\r |