static void sync_serial(void) {
char buffer[10];
ser_send(upsfd, "\r");
ser_get_line(upsfd, buffer, sizeof(buffer), '\r', "\012", 3, 0);
ser_get_line(upsfd, buffer, sizeof(buffer), ENDCHAR, IGNCHARS, 3, 0);
while (ser_get_line(upsfd, buffer, sizeof(buffer), '>', "\012", 3, 0) <= 0) {
ser_send(upsfd, "\r");
}
}
static int execute(const char *cmd, char *result, int resultsize)
{
int ret;
char buf[256];
ser_send(upsfd, "%s", cmd);
ser_get_line(upsfd, buf, sizeof(buf), '\012', "", 3, 0);
ret = ser_get_line(upsfd, result, resultsize, '\015', "\012", 3, 0);
ser_get_line(upsfd, buf, sizeof(buf), '>', "", 3, 0);
return ret;
}
int sec_upsrecv (char *buf)
{
char lenbuf[4];
int ret;
ser_get_line(upsfd, buf, 140, ENDCHAR, IGNCHARS,SER_WAIT_SEC, SER_WAIT_USEC);
if (buf[0] == SEC_MSG_STARTCHAR){
switch (buf[1]){
case SEC_NAK:
return(-1);
case SEC_ACK:
return(0);
case SEC_DATAMSG:
strncpy(lenbuf,buf+2,3);
ret = atoi(lenbuf);
if (ret > 0){
strcpy(buf,buf+5);
return(ret);}
else return (-2);
default:
return(-2);
}
}
else
{ return (-2); }
}
int OneacGetResponse (char* chBuff, const int BuffSize, int ExpectedCount)
{
int Retries = 10; /* x/2 seconds max with 500000 USEC */
int return_val;
do
{
return_val = ser_get_line(upsfd, chBuff, BuffSize, ENDCHAR, IGNCHARS,
SECS, USEC);
if (return_val == ExpectedCount)
break;
upsdebugx (3,"!OneacGetResponse retry (%d, %d)...", return_val,Retries);
} while (--Retries > 0);
upsdebugx (4,"OneacGetResponse buffer: %s",chBuff);
if (Retries == 0)
{
upsdebugx (2,"!!OneacGetResponse timeout...");
return_val = 1; /* Comms error */
}
else
{
if (Retries < 10)
upsdebugx (2,"OneacGetResponse recovered (%d)...", Retries);
return_val = 0; /* Good comms */
}
return return_val;
}
int SetOutputAllow(const char* lowval, const char* highval)
{
char buffer[32];
snprintf(buffer, 4, "%.3s", lowval);
/*the UPS wants this value to always be three characters long*/
/*so put a zero in front of the string, if needed.... */
if (strlen(buffer) < 3)
{
buffer[3] = '\0';
buffer[2] = buffer[1];
buffer[1] = buffer[0];
buffer[0] = '0';
}
upsdebugx (2,"SetOutputAllow sending %s%.3s,%.3s...",
SETX_OUT_ALLOW, buffer, highval);
ser_send(upsfd,"%s%.3s,%.3s%s", SETX_OUT_ALLOW, buffer, highval,
COMMAND_END);
ser_get_line(upsfd,buffer,sizeof(buffer), ENDCHAR, IGNCHARS,SECS,USEC);
if(buffer[0] == DONT_UNDERSTAND)
{
upsdebugx (2,"SetOutputAllow got asterisk back...");
return 1; /* Invalid command */
}
return 0; /* Valid command */
}
