int wiringPiI2CSetup (const int devId)
{
int rev ;
const char *device ;
rev = piGpioLayout () ;
if (rev == 1)
device = "/dev/i2c-0" ;
else
device = "/dev/i2c-1" ;
return wiringPiI2CSetupInterface (device, devId) ;
}
int wiringPiI2CSetup (const int devId)
{
int rev ;
const char *device ;
rev = piBoardRev () ;
if (rev == 1)
device = "/dev/i2c-0" ;
else if (rev == 2)
device = "/dev/i2c-1" ;
else if (rev == 3)
device = "/dev/i2c-2";
else
device = "/dev/i2c-3" ;
return wiringPiI2CSetupInterface (device, devId) ;
}
int wiringPiI2CSetup (const int devId)
{
const char *device ;
int model, rev, mem, maker, overVolted ;
piBoardId (&model, &rev, &mem, &maker, &overVolted) ;
if ( model == PI_MODEL_ODROIDC )
device = "/dev/i2c-1" ;
else if ( model == PI_MODEL_ODROIDXU_34 )
device = "/dev/i2c-3" ;
else {
rev = piBoardRev () ;
if (rev == 1)
device = "/dev/i2c-0" ;
else
device = "/dev/i2c-1" ;
}
return wiringPiI2CSetupInterface (device, devId) ;
}
int main(int argc, char **argv)
{
// handling Crl-C
struct sigaction act;
// config file handling
char configFilePath[MAXPATHLEN];
config_t cfg;
struct config config;
int c; // for getopt
// network communication
int socket_fd_cms;
struct sockaddr_in info_cms;
struct hostent *he_cms;
struct in_addr ipv4addr;
// data gathering
struct data data;
// char command[256];
// FILE *fileDescriptor; // for reading from /proc/net/wireless
// char fileContent[256];
if (argc==1)
{
printHelp();
return 1;
}
opterr = 0;
while ((c=getopt(argc, argv, "c:")) != -1) {
switch (c) {
case 'c': strcpy(configFilePath, optarg); break;
case '?': if (optopt=='d' || optopt=='h')
fprintf(stderr, "Option -%c requires an argument.\n", optopt);
else if (isprint (optopt))
fprintf(stderr, "Unknown option '-%c'.\n", optopt);
else
fprintf(stderr, "Unknown option character '\\x%x'.\n", optopt);
return 1;
default: abort();
}
}
act.sa_handler = intHandler;
sigaction(SIGINT, &act, NULL); // catch Ctrl-C
// read config file
config_init(&cfg);
/* Read the file. If there is an error, report it and exit. */
if(! config_read_file(&cfg, configFilePath))
{
fprintf(stderr, "%s:%d - %s\n", config_error_file(&cfg),
config_error_line(&cfg), config_error_text(&cfg));
config_destroy(&cfg);
return(EXIT_FAILURE);
}
// node, host, apikey, wlaninterface
if (!(config_lookup_string(&cfg, "node", &(config.pNodeName))))
{
fprintf(stderr, "No 'node' setting in configuration file.\n");
config_destroy(&cfg);
return(EXIT_FAILURE);
}
if (!(config_lookup_string(&cfg, "host", &(config.pHostName))))
{
fprintf(stderr, "No 'host' setting in configuration file.\n");
config_destroy(&cfg);
return(EXIT_FAILURE);
}
if (!(config_lookup_string(&cfg, "apikey", &(config.pApiKey))))
{
fprintf(stderr, "No 'apikey' setting in configuration file.\n");
config_destroy(&cfg);
return(EXIT_FAILURE);
}
if (!(config_lookup_string(&cfg, "i2cbus", &(config.pi2cBus))))
{
fprintf(stderr, "No 'i2cbus' setting in configuration file.\n");
config_destroy(&cfg);
return(EXIT_FAILURE);
}
printf ("conf file: %s\n", configFilePath);
printf ("host: %s\n", config.pHostName);
printf ("node: %s\n", config.pNodeName);
printf ("API key: %s\n", config.pApiKey);
printf ("i2c bus: %s\n", config.pi2cBus);
if (!(he_cms = gethostbyname(config.pHostName)))
{
fprintf(stderr, "Could not resolve host name, err %d.\n", h_errno);
config_destroy(&cfg);
exit(1);
}
// check existence of i2c bus
wiringPiSetup();
wiringPiI2CSetupInterface (config.pi2cBus, 0);
// this stops execution on error. BAD!
keepRunning = 0;
do {
if (!(gatherData(&config, &data)))
{
fprintf(stderr, "Could not gather data.\n");
config_destroy(&cfg);
return(EXIT_FAILURE);
}
/*
} while (keepRunning);
config_destroy(&cfg);
return (EXIT_FAILURE);
do {
*/
if ((socket_fd_cms = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
{
fprintf(stderr, "Could not allocate socket, err %d.\n", errno);
config_destroy(&cfg);
exit(1);
}
info_cms.sin_family = AF_INET;
info_cms.sin_port = htons(80);
info_cms.sin_addr = *((struct in_addr *)he_cms->h_addr);
if (connect(socket_fd_cms, (struct sockaddr *)&info_cms, sizeof(struct sockaddr)) < 0)
{
fprintf(stderr, "Could not connect to server, err%d.\n", errno);
close(socket_fd_cms);
config_destroy(&cfg);
exit(1);
}
if (!(sendToEmonCMS(&config, &data, socket_fd_cms))) {
printf("Could not send data.\n");
}
close(socket_fd_cms);
// sleep (10);
} while (keepRunning);
printf ("Closing down.\n");
config_destroy(&cfg);
return EX_OK;
}
