void sw_timeString(char *buf) {
buf[0]=0;
if(readDays()>0)sprintf(buf,"%d days ",readDays());
buf=strchr(buf,0);
if(readHours()>0)sprintf(buf,"%d hours ",readHours());
buf=strchr(buf,0);
if(readMinutes()>0)sprintf(buf,"%d min. ",readMinutes());
buf=strchr(buf,0);
if(readSeconds()>0)sprintf(buf,"%d seconds ",readSeconds());
buf=strchr(buf,0);
sprintf(buf,"%d ms ",readmSeconds());
}
/**
* Read the registers from the Real Time Clock.
*
* It reads the registers from the RTC and stores the data in the struct which
* pointer it receives. It handles the different types of format in which the data
* is stored in the RTC registers.
*
* @param regs Pointer to struct where the data from RTC registers will be stored.
*
*/
void readRTCRegisters(RTCRegisters *regs){
int format;
// Getting format register
outB(RTCADDRESS, 11);
format = inB(RTCDATA);
// Getting seconds
regs->seconds = readSeconds();
// Getting minutes
regs->minutes = readMinutes();
// Getting hours (value may be 12hs o 24hs format)
regs->hours = readHours();
// Getting day of the month
regs->day = readDay();
// Getting month
regs->month = readMonth();
// Getting year
regs->year = readYear();
// Getting century
regs->century = readCentury();
// If in BCD mode, convert to binary
if ((format & 0x02) == 0x02 ) {
regs->seconds = BCDTOBINARY(regs->seconds);
regs->minutes = BCDTOBINARY( regs->minutes);
regs->hours = BCDTOBINARY(regs->hours);
regs->day = BCDTOBINARY(regs->day );
regs->month = BCDTOBINARY(regs->month);
regs->year = BCDTOBINARY(regs->year);
regs->century = BCDTOBINARY(regs->century);
}
// If in 12 hs mode, convert to 24 hs mode
if ((format & 0x04) == 0x04) {
// Masking off the pm/am bit
if ( (regs->hours & 0x80) == 0x80 ) {
regs->hours &= 0x7F;
// Setting 12 pm as 0 regs->hours and adjusting the rest
regs->hours = (regs->hours == 12)? 0 : regs->hours + 12;
}
}
}
