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| author | Leif Lindholm <leif.lindholm@linaro.org> | 2017-05-03 16:54:56 +0100 |
|---|---|---|
| committer | Leif Lindholm <leif.lindholm@linaro.org> | 2017-05-10 14:28:14 +0100 |
| commit | b48959957128264ec7f56a18b1d8ddae85bfdffc (patch) | |
| tree | e344a568bcba3e4110b22d5f3a6ceca38cad8f13 /EmbeddedPkg/Include | |
| parent | ee66053106c63fc1aedec61014528febb18acdc9 (diff) | |
| download | edk2-b48959957128264ec7f56a18b1d8ddae85bfdffc.tar.gz edk2-b48959957128264ec7f56a18b1d8ddae85bfdffc.tar.bz2 edk2-b48959957128264ec7f56a18b1d8ddae85bfdffc.zip | |
EmbeddedPkg: import EfiTimeBaseLib (as TimeBaseLib)
Some generic RTC helper functions were broken out from the PL031
library for use with other RTCs in OpenPlatformPkg. Import the code back
here, realigning it with the current state of PL031RealTimeClockLib to
simplify comparisons.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Diffstat (limited to 'EmbeddedPkg/Include')
| -rw-r--r-- | EmbeddedPkg/Include/Library/TimeBaseLib.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/EmbeddedPkg/Include/Library/TimeBaseLib.h b/EmbeddedPkg/Include/Library/TimeBaseLib.h new file mode 100644 index 0000000000..fe3618e975 --- /dev/null +++ b/EmbeddedPkg/Include/Library/TimeBaseLib.h @@ -0,0 +1,68 @@ +/** @file
+*
+* Copyright (c) 2016, Hisilicon Limited. All rights reserved.
+* Copyright (c) 2016, Linaro Limited. All rights reserved.
+*
+* This program and the accompanying materials
+* are licensed and made available under the terms and conditions of the BSD License
+* which accompanies this distribution. The full text of the license may be found at
+* http://opensource.org/licenses/bsd-license.php
+*
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#ifndef _TIME_BASE_LIB_H_
+#define _TIME_BASE_LIB_H_
+
+#include <Uefi/UefiBaseType.h>
+
+// Define EPOCH (1970-JANUARY-01) in the Julian Date representation
+#define EPOCH_JULIAN_DATE 2440588
+
+// Seconds per unit
+#define SEC_PER_MIN ((UINTN) 60)
+#define SEC_PER_HOUR ((UINTN) 3600)
+#define SEC_PER_DAY ((UINTN) 86400)
+#define SEC_PER_MONTH ((UINTN) 2,592,000)
+#define SEC_PER_YEAR ((UINTN) 31,536,000)
+
+BOOLEAN
+EFIAPI
+IsLeapYear (
+ IN EFI_TIME *Time
+ );
+
+BOOLEAN
+EFIAPI
+IsDayValid (
+ IN EFI_TIME *Time
+ );
+
+BOOLEAN
+EFIAPI
+IsTimeValid (
+ IN EFI_TIME *Time
+ );
+
+/**
+ Converts Epoch seconds (elapsed since 1970 JANUARY 01, 00:00:00 UTC) to EFI_TIME
+ **/
+VOID
+EFIAPI
+EpochToEfiTime (
+ IN UINTN EpochSeconds,
+ OUT EFI_TIME *Time
+ );
+
+/**
+ Converts EFI_TIME to Epoch seconds (elapsed since 1970 JANUARY 01, 00:00:00 UTC)
+ **/
+UINTN
+EFIAPI
+EfiTimeToEpoch (
+ IN EFI_TIME *Time
+ );
+
+#endif
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