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ArmPlatformPkg/PL031RealTimeClockLib: Set PL031_{TimeZone,Daylight} UEFI variables as local 

PL031_TimeZone and PL031_Daylight are not global variables as defined by UEFI specification

Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14107 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin 2013-01-28 11:59:37 +00:00
parent d5cd447b1f
commit 1e43cdfdd4
2 changed files with 95 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

144
ArmPlatformPkg/Library/PL031RealTimeClockLib/PL031RealTimeClockLib.c
View File

@ -34,9 +34,9 @@
#include <ArmPlatform.h>
CHAR16 mTimeZoneVariableName[] = L"PL031_TimeZone";
CHAR16 mDaylightVariableName[] = L"PL031_Daylight";
BOOLEAN mPL031Initialized = FALSE;
STATIC CONST CHAR16 mTimeZoneVariableName[] = L"PL031RtcTimeZone";
STATIC CONST CHAR16 mDaylightVariableName[] = L"PL031RtcDaylight";
STATIC BOOLEAN mPL031Initialized = FALSE;
EFI_STATUS
IdentifyPL031 (
@ -129,10 +129,6 @@ EpochToEfiTime (
UINTN ss;
UINTN J;
if (Time->Daylight == TRUE) {
}
J = (EpochSeconds / 86400) + 2440588;
j = J + 32044;
g = j / 146097;
@ -234,13 +230,14 @@ DayValid (
Returns the current time and date information, and the time-keeping capabilities
of the hardware platform.
@param Time A pointer to storage to receive a snapshot of the current time.
@param Capabilities An optional pointer to a buffer to receive the real time clock
device's capabilities.
@param Time A pointer to storage to receive a snapshot of the current time.
@param Capabilities An optional pointer to a buffer to receive the real time clock
device's capabilities.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_INVALID_PARAMETER Time is NULL.
@retval EFI_DEVICE_ERROR The time could not be retrieved due to hardware error.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_INVALID_PARAMETER Time is NULL.
@retval EFI_DEVICE_ERROR The time could not be retrieved due to hardware error.
@retval EFI_SECURITY_VIOLATION The time could not be retrieved due to an authentication failure.
**/
EFI_STATUS
@ -252,8 +249,9 @@ LibGetTime (
{
EFI_STATUS Status = EFI_SUCCESS;
UINT32 EpochSeconds;
INT16 *TimeZone = 0;
UINTN *Daylight = 0;
INT16 TimeZone;
UINT8 Daylight;
UINTN Size;
// Initialize the hardware if not already done
if (!mPL031Initialized) {
@ -287,27 +285,44 @@ LibGetTime (
}
// Get the current time zone information from non-volatile storage
TimeZone = (INT16 *)GetVariable(mTimeZoneVariableName, &gEfiGlobalVariableGuid);
Size = sizeof (TimeZone);
Status = gRT->GetVariable (
(CHAR16 *)mTimeZoneVariableName,
&gEfiCallerIdGuid,
NULL,
&Size,
(VOID *)&TimeZone
);
if (EFI_ERROR (Status)) {
ASSERT(Status != EFI_INVALID_PARAMETER);
ASSERT(Status != EFI_BUFFER_TOO_SMALL);
if (Status != EFI_NOT_FOUND)
goto EXIT;
if (TimeZone == NULL) {
// The time zone variable does not exist in non-volatile storage, so create it.
Time->TimeZone = EFI_UNSPECIFIED_TIMEZONE;
// Store it
Status = gRT->SetVariable (
mTimeZoneVariableName,
&gEfiGlobalVariableGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
sizeof(Time->TimeZone),
&(Time->TimeZone)
);
(CHAR16 *)mTimeZoneVariableName,
&gEfiCallerIdGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
Size,
(VOID *)&(Time->TimeZone)
);
if (EFI_ERROR (Status)) {
DEBUG((EFI_D_ERROR,"LibGetTime: ERROR: TimeZone\n"));
DEBUG ((
EFI_D_ERROR,
"LibGetTime: Failed to save %s variable to non-volatile storage, Status = %r\n",
mTimeZoneVariableName,
Status
));
goto EXIT;
}
} else {
// Got the time zone
Time->TimeZone = *TimeZone;
FreePool(TimeZone);
Time->TimeZone = TimeZone;
// Check TimeZone bounds: -1440 to 1440 or 2047
if (((Time->TimeZone < -1440) || (Time->TimeZone > 1440))
@ -322,27 +337,44 @@ LibGetTime (
}
// Get the current daylight information from non-volatile storage
Daylight = (UINTN *)GetVariable(mDaylightVariableName, &gEfiGlobalVariableGuid);
Size = sizeof (Daylight);
Status = gRT->GetVariable (
(CHAR16 *)mDaylightVariableName,
&gEfiCallerIdGuid,
NULL,
&Size,
(VOID *)&Daylight
);
if (EFI_ERROR (Status)) {
ASSERT(Status != EFI_INVALID_PARAMETER);
ASSERT(Status != EFI_BUFFER_TOO_SMALL);
if (Status != EFI_NOT_FOUND)
goto EXIT;
if (Daylight == NULL) {
// The daylight variable does not exist in non-volatile storage, so create it.
Time->Daylight = 0;
// Store it
Status = gRT->SetVariable (
mDaylightVariableName,
&gEfiGlobalVariableGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
sizeof(Time->Daylight),
&(Time->Daylight)
);
(CHAR16 *)mDaylightVariableName,
&gEfiCallerIdGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
Size,
(VOID *)&(Time->Daylight)
);
if (EFI_ERROR (Status)) {
DEBUG((EFI_D_ERROR,"LibGetTime: ERROR: Daylight\n"));
DEBUG ((
EFI_D_ERROR,
"LibGetTime: Failed to save %s variable to non-volatile storage, Status = %r\n",
mDaylightVariableName,
Status
));
goto EXIT;
}
} else {
// Got the daylight information
Time->Daylight = *Daylight;
FreePool(Daylight);
Time->Daylight = Daylight;
// Adjust for the correct period
if ((Time->Daylight & EFI_TIME_IN_DAYLIGHT) == EFI_TIME_IN_DAYLIGHT) {
@ -457,27 +489,37 @@ LibSetTime (
// Save the current time zone information into non-volatile storage
Status = gRT->SetVariable (
mTimeZoneVariableName,
&gEfiGlobalVariableGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
sizeof(Time->TimeZone),
&(Time->TimeZone)
);
(CHAR16 *)mTimeZoneVariableName,
&gEfiCallerIdGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
sizeof (Time->TimeZone),
(VOID *)&(Time->TimeZone)
);
if (EFI_ERROR (Status)) {
DEBUG((EFI_D_ERROR,"LibSetTime: ERROR: TimeZone\n"));
DEBUG ((
EFI_D_ERROR,
"LibSetTime: Failed to save %s variable to non-volatile storage, Status = %r\n",
mTimeZoneVariableName,
Status
));
goto EXIT;
}
// Save the current daylight information into non-volatile storage
Status = gRT->SetVariable (
mDaylightVariableName,
&gEfiGlobalVariableGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
sizeof(Time->Daylight),
&(Time->Daylight)
);
(CHAR16 *)mDaylightVariableName,
&gEfiCallerIdGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
sizeof(Time->Daylight),
(VOID *)&(Time->Daylight)
);
if (EFI_ERROR (Status)) {
DEBUG((EFI_D_ERROR,"LibSetTime: ERROR: Daylight\n"));
DEBUG ((
EFI_D_ERROR,
"LibSetTime: Failed to save %s variable to non-volatile storage, Status = %r\n",
mDaylightVariableName,
Status
));
goto EXIT;
}

6
ArmPlatformPkg/Library/PL031RealTimeClockLib/PL031RealTimeClockLib.inf
View File

@ -1,8 +1,7 @@
#/** @file
# Memory Status Code Library for UEFI drivers
#
# Lib to provide memory journal status code reporting Routines
# Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2011-2013, ARM Ltd. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@ -25,7 +24,6 @@
[Sources.common]
PL031RealTimeClockLib.c
[Packages]
MdePkg/MdePkg.dec
EmbeddedPkg/EmbeddedPkg.dec
@ -37,7 +35,7 @@
DebugLib
PcdLib
ArmPlatformSysConfigLib
[Pcd]
gArmPlatformTokenSpaceGuid.PcdPL031RtcBase
gArmPlatformTokenSpaceGuid.PcdPL031RtcPpmAccuracy