Revision 1120

View differences:

trunk/code/projects/diagnostic_station/server/server.c
1
#include "comp-hub.h"
2

  
3
// ALSO DON'T FORGET TO CHECK OUT
4
// ATTRIBUTES ON LINES 39 ish TO 50 ish
5
#define PORT_DEFAULT "/dev/ttyUSB0"
6
#define BAUD_RATE 115200
7

  
8
static char* com_port = PORT_DEFAULT;
9
static int stream;
10

  
11
int main(void)
12
{
13
	if(lib_init() < 0)
14
		printf("Exiting...\n");
15
	
16
	//your code here
17
	listen();
18
	put_char('r');
19
	listen();
20
	put_char('b');
21
	listen();
22
	put_char('m');
23
	listen();
24
	
25
	return 0;
26
}
27

  
28
int lib_init()
29
{
30
	stream = open(com_port, O_RDWR);
31
	if (stream == -1)
32
	{
33
		printf("Failed to open connection on port ");
34
		printf("%i\n", *com_port);
35
		return -1;
36
	} else {
37
	  	printf("Successfully opened connection on port ");
38
		printf("%i\n", (int)(*com_port));
39
	}
40
	// set baud rate, etc. correctly
41
	struct termios options;
42
	if(tcgetattr(stream, &options))
43
		printf("Error getting attributes");
44
	cfsetispeed(&options, BAUD_RATE);
45
	cfsetospeed(&options, BAUD_RATE);
46
	//options.c_iflag &= ~ICRNL;
47
	//options.c_oflag &= ~OCRNL;
48
	//options.c_cflag |= (CLOCAL | CREAD);
49
	options.c_cflag &= ~PARENB; //no parity
50
	options.c_cflag &= ~CSTOPB; //one stop bit
51
	options.c_cflag &= ~CSIZE;
52
	options.c_cflag |= CS8; //8 bits
53
	//options.c_lflag &= ~ICANON;
54
	//options.c_cc[VMIN] = 1;
55
	//options.c_cc[VTIME] = 50;
56

  
57
	if (tcsetattr(stream, TCSANOW, &options))
58
	{
59
		printf("Error setting attributes.\n");
60
		return -1;
61
	}
62
	return 0;
63
}
64

  
65
/**
66
 * Listener function
67
 * At the moment, just prints out what it receives
68
 **/
69
static void* listen()
70
{
71
	char c;
72
	int count = 0;
73
	char buf[100];
74
	while (1)
75
	{
76
		if (read_char(&c) != 0) {
77
			printf("Listen failed.\n");
78
			return NULL;
79
		}
80
		
81
		printf("%c", c); fflush(stdout);
82
		
83
		if(c == '\0')
84
			break;
85
	}
86

  
87
	return NULL;
88
}
89

  
90
static int read_char(char* buf)
91
{
92
	if (read(stream, buf, 1) == -1) {
93
		printf("Failed to read.\r\n");
94
		return -1;
95
	}
96
	return 0;
97
}
98

  
99
/**
100
 * Put functions
101
 **/
102
static int put_string(char *str)
103
{
104
	if (write(stream, str, strlen(str)) == -1) {
105
		printf("Failed to write.\r\n");
106
		return -1;
107
	}
108
	return 0;
109
}
110

  
111
static int put_char(char c)
112
{
113
	if (write(stream, &c, 1) == -1) {
114
		printf("Failed to write.\r\n");
115
		return -1;
116
	}
117
	return 0;
118
}
trunk/code/projects/diagnostic_station/server/server.h
1
#include <termios.h>
2
#include <fcntl.h>
3
#include <stdio.h>
4
#include <stdlib.h>
5
#include <string.h>
6
#include <unistd.h>
7

  
8
int main(void);
9
int lib_init();
10
static void* listen();
11
static int read_char(char* buf);
12
static int put_string(char *str);
13
static int put_char(char c);
trunk/code/projects/diagnostic_station/server/Makefile
1
all:
2
	gcc server.c -o server
3

  
4
clean:
5
	rm server

Also available in: Unified diff