diff options
| author | Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com> | 2018-06-04 22:01:44 +0530 |
|---|---|---|
| committer | Leif Lindholm <leif.lindholm@linaro.org> | 2018-06-05 16:18:21 +0100 |
| commit | 91c31ff04a7a72b4b0e476972ad3c76e03a106a2 (patch) | |
| tree | 294a7a4418f65f331a80e2777fad46c6d4bd7e0b /EmbeddedPkg | |
| parent | 1b6e7633cad8135547f337eeef47f446f57a2505 (diff) | |
| download | edk2-91c31ff04a7a72b4b0e476972ad3c76e03a106a2.tar.gz edk2-91c31ff04a7a72b4b0e476972ad3c76e03a106a2.tar.bz2 edk2-91c31ff04a7a72b4b0e476972ad3c76e03a106a2.zip | |
EmbeddedPkg/TimeBaseLib: Add function to get Week day.
This patch add function EfiTimeToWday() which returns
day of the week.
It is needed by our upcoming patches in edk2-platforms.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Vabhav Sharma <vabhav.sharma@nxp.com>
Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Diffstat (limited to 'EmbeddedPkg')
| -rw-r--r-- | EmbeddedPkg/Include/Library/TimeBaseLib.h | 8 | ||||
| -rw-r--r-- | EmbeddedPkg/Library/TimeBaseLib/TimeBaseLib.c | 38 |
2 files changed, 43 insertions, 3 deletions
diff --git a/EmbeddedPkg/Include/Library/TimeBaseLib.h b/EmbeddedPkg/Include/Library/TimeBaseLib.h index fe3618e975..dd0b99f2b6 100644 --- a/EmbeddedPkg/Include/Library/TimeBaseLib.h +++ b/EmbeddedPkg/Include/Library/TimeBaseLib.h @@ -65,4 +65,12 @@ EfiTimeToEpoch ( IN EFI_TIME *Time
);
+/**
+ returns Day of the week [0-6] 0=Sunday
+ **/
+UINTN
+EfiTimeToWday (
+ IN EFI_TIME *Time
+ );
+
#endif
diff --git a/EmbeddedPkg/Library/TimeBaseLib/TimeBaseLib.c b/EmbeddedPkg/Library/TimeBaseLib/TimeBaseLib.c index 0c0d940301..5f2bf65fcd 100644 --- a/EmbeddedPkg/Library/TimeBaseLib/TimeBaseLib.c +++ b/EmbeddedPkg/Library/TimeBaseLib/TimeBaseLib.c @@ -77,11 +77,11 @@ EpochToEfiTime ( }
/**
- Converts EFI_TIME to Epoch seconds (elapsed since 1970 JANUARY 01, 00:00:00 UTC)
+ Calculate Epoch days
**/
UINTN
EFIAPI
-EfiTimeToEpoch (
+EfiGetEpochDays (
IN EFI_TIME *Time
)
{
@@ -90,7 +90,6 @@ EfiTimeToEpoch ( UINTN m;
UINTN JulianDate; // Absolute Julian Date representation of the supplied Time
UINTN EpochDays; // Number of days elapsed since EPOCH_JULIAN_DAY
- UINTN EpochSeconds;
a = (14 - Time->Month) / 12 ;
y = Time->Year + 4800 - a;
@@ -101,11 +100,44 @@ EfiTimeToEpoch ( ASSERT (JulianDate >= EPOCH_JULIAN_DATE);
EpochDays = JulianDate - EPOCH_JULIAN_DATE;
+ return EpochDays;
+}
+/**
+ Converts EFI_TIME to Epoch seconds (elapsed since 1970 JANUARY 01, 00:00:00 UTC)
+ **/
+UINTN
+EFIAPI
+EfiTimeToEpoch (
+ IN EFI_TIME *Time
+ )
+{
+ UINTN EpochDays; // Number of days elapsed since EPOCH_JULIAN_DAY
+ UINTN EpochSeconds;
+
+ EpochDays = EfiGetEpochDays (Time);
+
EpochSeconds = (EpochDays * SEC_PER_DAY) + ((UINTN)Time->Hour * SEC_PER_HOUR) + (Time->Minute * SEC_PER_MIN) + Time->Second;
return EpochSeconds;
}
+/**
+ returns Day of the week [0-6] 0=Sunday
+ **/
+UINTN
+EfiTimeToWday (
+ IN EFI_TIME *Time
+ )
+{
+ UINTN EpochDays; // Number of days elapsed since EPOCH_JULIAN_DAY
+
+ EpochDays = EfiGetEpochDays (Time);
+
+ // 4=1/1/1970 was a Thursday
+
+ return (EpochDays + 4) % 7;
+}
+
BOOLEAN
EFIAPI
IsLeapYear (
|