aboutsummaryrefslogtreecommitdiff
path: root/hw/timer
diff options
context:
space:
mode:
Diffstat (limited to 'hw/timer')
-rw-r--r--hw/timer/mc146818rtc.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c
index 954c34d6cc..a9f0efd5e0 100644
--- a/hw/timer/mc146818rtc.c
+++ b/hw/timer/mc146818rtc.c
@@ -56,7 +56,7 @@
#define RTC_REINJECT_ON_ACK_COUNT 20
#define RTC_CLOCK_RATE 32768
-#define UIP_HOLD_LENGTH (8 * NSEC_PER_SEC / 32768)
+#define UIP_HOLD_LENGTH (8 * NANOSECONDS_PER_SECOND / 32768)
#define MC146818_RTC(obj) OBJECT_CHECK(RTCState, (obj), TYPE_MC146818_RTC)
@@ -105,7 +105,7 @@ static uint64_t get_guest_rtc_ns(RTCState *s)
uint64_t guest_rtc;
uint64_t guest_clock = qemu_clock_get_ns(rtc_clock);
- guest_rtc = s->base_rtc * NSEC_PER_SEC
+ guest_rtc = s->base_rtc * NANOSECONDS_PER_SECOND
+ guest_clock - s->last_update + s->offset;
return guest_rtc;
}
@@ -231,16 +231,17 @@ static void check_update_timer(RTCState *s)
return;
}
- guest_nsec = get_guest_rtc_ns(s) % NSEC_PER_SEC;
+ guest_nsec = get_guest_rtc_ns(s) % NANOSECONDS_PER_SECOND;
/* if UF is clear, reprogram to next second */
next_update_time = qemu_clock_get_ns(rtc_clock)
- + NSEC_PER_SEC - guest_nsec;
+ + NANOSECONDS_PER_SECOND - guest_nsec;
/* Compute time of next alarm. One second is already accounted
* for in next_update_time.
*/
next_alarm_sec = get_next_alarm(s);
- s->next_alarm_time = next_update_time + (next_alarm_sec - 1) * NSEC_PER_SEC;
+ s->next_alarm_time = next_update_time +
+ (next_alarm_sec - 1) * NANOSECONDS_PER_SECOND;
if (s->cmos_data[RTC_REG_C] & REG_C_UF) {
/* UF is set, but AF is clear. Program the timer to target
@@ -456,7 +457,7 @@ static void cmos_ioport_write(void *opaque, hwaddr addr,
/* if disabling set mode, update the time */
if ((s->cmos_data[RTC_REG_B] & REG_B_SET) &&
(s->cmos_data[RTC_REG_A] & 0x70) <= 0x20) {
- s->offset = get_guest_rtc_ns(s) % NSEC_PER_SEC;
+ s->offset = get_guest_rtc_ns(s) % NANOSECONDS_PER_SECOND;
rtc_set_time(s);
}
}
@@ -580,7 +581,7 @@ static void rtc_update_time(RTCState *s)
int64_t guest_nsec;
guest_nsec = get_guest_rtc_ns(s);
- guest_sec = guest_nsec / NSEC_PER_SEC;
+ guest_sec = guest_nsec / NANOSECONDS_PER_SECOND;
gmtime_r(&guest_sec, &ret);
/* Is SET flag of Register B disabled? */
@@ -608,7 +609,8 @@ static int update_in_progress(RTCState *s)
guest_nsec = get_guest_rtc_ns(s);
/* UIP bit will be set at last 244us of every second. */
- if ((guest_nsec % NSEC_PER_SEC) >= (NSEC_PER_SEC - UIP_HOLD_LENGTH)) {
+ if ((guest_nsec % NANOSECONDS_PER_SECOND) >=
+ (NANOSECONDS_PER_SECOND - UIP_HOLD_LENGTH)) {
return 1;
}
return 0;