static uint32_t s3c_rtc_read(void *opaque, target_phys_addr_t addr)
{
struct s3c_rtc_state_s *s = (struct s3c_rtc_state_s *) opaque;
addr -= s->base;
switch (addr) {
case S3C_RTC_CON:
return s->control;
case S3C_RTC_TICNT:
return s->tick;
case S3C_RTC_ALM:
return s->alarm;
case S3C_RTC_ALMSEC:
return s->almsec;
case S3C_RTC_ALMMIN:
return s->almmin;
case S3C_RTC_ALMHOUR:
return s->almhour;
case S3C_RTC_ALMDATE:
return s->almday;
case S3C_RTC_ALMMON:
return s->almmon;
case S3C_RTC_ALMYEAR:
return s->almyear;
case S3C_RTC_RST:
return s->reset;
case S3C_RTC_BCDSEC:
s3c_rtc_update(s);
return to_bcd(s->tm.tm_sec);
case S3C_RTC_BCDMIN:
s3c_rtc_update(s);
return to_bcd(s->tm.tm_min);
case S3C_RTC_BCDHOUR:
s3c_rtc_update(s);
return to_bcd(s->tm.tm_hour);
case S3C_RTC_BCDDATE:
s3c_rtc_update(s);
return to_bcd(s->tm.tm_mday);
case S3C_RTC_BCDDAY:
s3c_rtc_update(s);
return s->tm.tm_wday;
case S3C_RTC_BCDMON:
s3c_rtc_update(s);
return to_bcd(s->tm.tm_mon + 1);
case S3C_RTC_BCDYEAR:
s3c_rtc_update(s);
return to_bcd(s->tm.tm_year % 100);
default:
printf("%s: Bad register 0x%lx\n", __FUNCTION__, addr);
break;
}
return 0;
}
static void s3c_rtc_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct s3c_rtc_state_s *s = (struct s3c_rtc_state_s *) opaque;
int diff;
switch (addr) {
case S3C_RTC_CON:
s->control = value & 0xf;
s->enable = (s->control == 0x1);
break;
case S3C_RTC_TICNT:
s->tick = value;
if (s->tick & (1 << 7))
s3c_rtc_tick_mod(s);
break;
case S3C_RTC_ALM:
s->alarm = value;
break;
case S3C_RTC_ALMSEC:
s->almsec = value;
break;
case S3C_RTC_ALMMIN:
s->almmin = value;
break;
case S3C_RTC_ALMHOUR:
s->almhour = value;
break;
case S3C_RTC_ALMDATE:
s->almday = value;
break;
case S3C_RTC_ALMMON:
s->almmon = value;
break;
case S3C_RTC_ALMYEAR:
s->almyear = value;
break;
case S3C_RTC_RST:
s->reset = value & 0xf;
break;
/* XXX This is not very exact time setting */
case S3C_RTC_BCDSEC:
s3c_rtc_update(s);
diff = from_bcd(value) - s->tm.tm_sec;
s->sec += diff * 1;
break;
case S3C_RTC_BCDMIN:
s3c_rtc_update(s);
diff = from_bcd(value) - s->tm.tm_min;
s->sec += diff * 60;
break;
case S3C_RTC_BCDHOUR:
s3c_rtc_update(s);
diff = from_bcd(value) - s->tm.tm_hour;
s->sec += diff * 60 * 60;
break;
case S3C_RTC_BCDDATE:
s3c_rtc_update(s);
diff = from_bcd(value) - s->tm.tm_mday;
s->sec += diff * 60 * 60 * 24;
break;
case S3C_RTC_BCDDAY:
s3c_rtc_update(s);
diff = (value & 7) - s->tm.tm_wday;
s->sec += diff * 60 * 60 * 24;
break;
case S3C_RTC_BCDMON:
s3c_rtc_update(s);
diff = from_bcd(value) - s->tm.tm_mon - 1;
s->sec += diff * 60 * 60 * 24 * 30;
break;
case S3C_RTC_BCDYEAR:
s3c_rtc_update(s);
diff = from_bcd(value) - (s->tm.tm_year % 100);
s->sec += diff * 60 * 60 * 24 * 365;
break;
default:
printf("%s: Bad register 0x%lx\n", __FUNCTION__, (unsigned long)addr);
}
}
