| 1 | #include <fcntl.h>
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| 2 | #include <termios.h>
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| 3 | #include <stdio.h>
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| 4 |
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| 5 | // For Evidence server
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| 6 | #define SERVER_NAME "ARDUINO" // Name to use in DIM
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| 7 | #include "Evidence.h"
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| 8 | #define NUM_VAL 10
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| 9 |
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| 10 | #define MODEMDEVICE "/dev/myArduino"
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| 11 |
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| 12 | int main() {
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| 13 |
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| 14 | int fd, res;
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| 15 | struct termios oldtio,newtio;
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| 16 | char Textbuffer[255], Temp[sizeof(Textbuffer)], *Token;
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| 17 |
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| 18 | // Start Evidence server and create services
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| 19 | EvidenceServer Srv(SERVER_NAME);
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| 20 |
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| 21 | float Val[NUM_VAL]={0};
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| 22 | DimService TextService(SERVER_NAME"/Textout", Textbuffer);
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| 23 | DimService Data(SERVER_NAME"/Data", "F", Val, sizeof(Val));
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| 24 |
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| 25 | // Open modem device for reading and writing and not as controlling tty
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| 26 | // because we don't want to get killed if linenoise sends CTRL-C.
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| 27 | fd = open(MODEMDEVICE, O_RDWR | O_NOCTTY );
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| 28 | if (fd <0) {
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| 29 | Srv.State(Srv.FATAL, "Could not open modem device (%s)", strerror(errno));
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| 30 | }
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| 31 |
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| 32 | tcgetattr(fd,&oldtio); /* save current serial port settings */
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| 33 | memset(&newtio, 0, sizeof(newtio)); /* clear struct for new port settings */
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| 34 |
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| 35 | /*
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| 36 | BAUDRATE: Set bps rate. You could also use cfsetispeed and cfsetospeed.
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| 37 | CRTSCTS : output hardware flow control (only used if the cable has
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| 38 | all necessary lines. See sect. 7 of Serial-HOWTO)
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| 39 | CS8 : 8n1 (8bit,no parity,1 stopbit)
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| 40 | CLOCAL : local connection, no modem contol
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| 41 | CREAD : enable receiving characters
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| 42 | */
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| 43 | newtio.c_cflag = B9600 | CS8 | CLOCAL | CREAD;
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| 44 |
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| 45 | // CRTSCTS | maybe not needed //DN 090907
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| 46 |
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| 47 | /*
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| 48 | IGNPAR : ignore bytes with parity errors
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| 49 | ICRNL : map CR to NL (otherwise a CR input on the other computer
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| 50 | will not terminate input)
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| 51 | otherwise make device raw (no other input processing)
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| 52 | */
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| 53 | newtio.c_iflag = IGNPAR ;
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| 54 |
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| 55 | // | ICRNL // i guess this is not needed here. DN 090907
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| 56 |
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| 57 | // Raw output.
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| 58 | newtio.c_oflag = 0;
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| 59 |
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| 60 | /*
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| 61 | ICANON : enable canonical input
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| 62 | disable all echo functionality, and don't send signals to calling program
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| 63 | */
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| 64 | newtio.c_lflag = ICANON;
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| 65 |
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| 66 | /*
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| 67 | initialize all control characters
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| 68 | default values can be found in /usr/include/termios.h, and are given
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| 69 | in the comments, but we don't need them here
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| 70 | */
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| 71 | newtio.c_cc[VINTR] = 0; /* Ctrl-c */
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| 72 | newtio.c_cc[VQUIT] = 0; /* Ctrl-\ */
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| 73 | newtio.c_cc[VERASE] = 0; /* del */
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| 74 | newtio.c_cc[VKILL] = 0; /* @ */
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| 75 | newtio.c_cc[VEOF] = 4; /* Ctrl-d */
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| 76 | newtio.c_cc[VTIME] = 0; /* inter-character timer unused */
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| 77 | newtio.c_cc[VMIN] = 1; /* blocking read until 1 character arrives */
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| 78 | newtio.c_cc[VSWTC] = 0; /* '\0' */
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| 79 | newtio.c_cc[VSTART] = 0; /* Ctrl-q */
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| 80 | newtio.c_cc[VSTOP] = 0; /* Ctrl-s */
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| 81 | newtio.c_cc[VSUSP] = 0; /* Ctrl-z */
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| 82 | newtio.c_cc[VEOL] = 0; /* '\0' */
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| 83 | newtio.c_cc[VREPRINT] = 0; /* Ctrl-r */
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| 84 | newtio.c_cc[VDISCARD] = 0; /* Ctrl-u */
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| 85 | newtio.c_cc[VWERASE] = 0; /* Ctrl-w */
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| 86 | newtio.c_cc[VLNEXT] = 0; /* Ctrl-v */
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| 87 | newtio.c_cc[VEOL2] = 0; /* '\0' */
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| 88 |
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| 89 | // now clean the modem line and activate the settings for the port
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| 90 | tcflush(fd, TCIFLUSH);
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| 91 | tcsetattr(fd,TCSANOW,&newtio);
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| 92 |
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| 93 | while (!Srv.ExitRequest) {
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| 94 |
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| 95 | /* read blocks program execution until a line terminating character is
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| 96 | input, even if more than 255 chars are input. If the number
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| 97 | of characters read is smaller than the number of chars available,
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| 98 | subsequent reads will return the remaining chars. res will be set
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| 99 | to the actual number of characters actually read */
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| 100 | res = read(fd, Textbuffer, sizeof(Textbuffer));
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| 101 |
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| 102 | // Set end of string marker anbd replace all non-printable characters
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| 103 | Textbuffer[res]=0;
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| 104 | for (unsigned int i=0; i<strlen(Textbuffer); i++) if (isprint(Textbuffer[i])==0) Textbuffer[i] = ' ';
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| 105 |
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| 106 | printf("%s\n", Textbuffer);
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| 107 | TextService.updateService();
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| 108 | if (strncmp (Textbuffer,"[Temp,",6) != 0) continue;
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| 109 |
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| 110 | // Update DIM services
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| 111 | memcpy(Temp, Textbuffer, sizeof(Textbuffer));
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| 112 | Token = strtok(Temp, ", ");
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| 113 | for (int i=0; i<NUM_VAL; i++) {
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| 114 | Token = strtok(NULL, ", ");
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| 115 | if (Token != NULL) Val[i] = atof(Token);
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| 116 | }
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| 117 | Data.updateService();
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| 118 |
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| 119 | usleep(atoi(Srv.GetConfig("Period", "10")) * 1000000);
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| 120 | } // while()
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| 121 |
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| 122 | /* restore the old port settings */
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| 123 | tcsetattr(fd,TCSANOW,&oldtio);
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| 124 | }
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