diff options
Diffstat (limited to 'sys/contrib/dev/acpica/components/hardware/hwtimer.c')
| -rw-r--r-- | sys/contrib/dev/acpica/components/hardware/hwtimer.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sys/contrib/dev/acpica/components/hardware/hwtimer.c b/sys/contrib/dev/acpica/components/hardware/hwtimer.c index ea8f954..1a13f64 100644 --- a/sys/contrib/dev/acpica/components/hardware/hwtimer.c +++ b/sys/contrib/dev/acpica/components/hardware/hwtimer.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2012, Intel Corp. + * Copyright (C) 2000 - 2013, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -203,10 +203,11 @@ AcpiGetTimerDuration ( /* * Compute Duration (Requires a 64-bit multiply and divide): * - * TimeElapsed = (DeltaTicks * 1000000) / PM_TIMER_FREQUENCY; + * TimeElapsed (microseconds) = + * (DeltaTicks * ACPI_USEC_PER_SEC) / ACPI_PM_TIMER_FREQUENCY; */ - Status = AcpiUtShortDivide (((UINT64) DeltaTicks) * 1000000, - PM_TIMER_FREQUENCY, &Quotient, NULL); + Status = AcpiUtShortDivide (((UINT64) DeltaTicks) * ACPI_USEC_PER_SEC, + ACPI_PM_TIMER_FREQUENCY, &Quotient, NULL); *TimeElapsed = (UINT32) Quotient; return_ACPI_STATUS (Status); |
