diff options
Diffstat (limited to 'Core/EM/ACPI/AtadSmi.c')
| -rw-r--r-- | Core/EM/ACPI/AtadSmi.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/Core/EM/ACPI/AtadSmi.c b/Core/EM/ACPI/AtadSmi.c new file mode 100644 index 0000000..31d57a5 --- /dev/null +++ b/Core/EM/ACPI/AtadSmi.c @@ -0,0 +1,254 @@ +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2010, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** + +//********************************************************************** +// $Header: /Alaska/BIN/Modules/ACPI/Template/Core/AtadSmi.c 1 1/23/14 5:47p Oleksiyy $ +// +// $Revision: 1 $ +// +// $Date: 1/23/14 5:47p $ +//********************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/BIN/Modules/ACPI/Template/Core/AtadSmi.c $ +// +// 1 1/23/14 5:47p Oleksiyy +// [TAG] EIP113941 +// [Category] New Feature +// [Description] Time and Alarm ACPI device implemented. +// [Files] AtadSmi.cif +// AtadSmi.sdl +// AtadSmi.mak +// AtadSmi.dxs +// AtadSmi.h +// AtadSmi.c +// +// 6 1/13/10 2:13p Felixp +// +//********************************************************************** +//<AMI_FHDR_START> +// +// Name: <AtadSmi.c> +// +// Description: +// +//<AMI_FHDR_END> +//********************************************************************** + +#include <AmiDxeLib.h> +#include <AmiSmm.h> +#include "AtadSmi.h" +#include <token.h> + +#if PI_SPECIFICATION_VERSION<0x0001000A + #include <Protocol/SmmSwDispatch.h> + #include <Protocol/SmmControl.h> +#else + #include <Protocol/SmmSwDispatch2.h> + #include <Protocol/SmmControl2.h> + #include <Protocol/SmmCpu.h> +#endif + + + +EFI_HANDLE VarSmiHandle = NULL; + +VOID *gAtadBuffer = NULL; +EFI_EVENT EvtAtadSmi; +VOID *RegAtadSmi; +UINT32 i=0; +UINT32 j=0; + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: AtadSmiHandler +// +// Description: The SMI handler for Nvram services. +// +// Input: NONE +// +// +// Output: EFI_STATUS +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> + +EFI_STATUS AtadSmiHandler () +{ + EFI_STATUS Status = EFI_DEVICE_ERROR; + ATAD_VARIABLE *SmmVarBuffer; + EFI_GUID gEfiTimeVariableGuid = EFI_TIME_VARIABLE_GUID; + TIME_VARIABLE TimeVar; + UINTN TimeVarSize = sizeof(TIME_VARIABLE); + UINT32 TimeVarFlags = EFI_VARIABLE_NON_VOLATILE | + EFI_VARIABLE_BOOTSERVICE_ACCESS | + EFI_VARIABLE_RUNTIME_ACCESS; + //TRACE((-1,"AtadSmiHandler . 1.\n")); + //checkpoint(0x24); + if (gAtadBuffer == NULL) return EFI_SUCCESS; + + SmmVarBuffer = (ATAD_VARIABLE*)gAtadBuffer; + + + + + //checkpoint(0x25); + switch (SmmVarBuffer->Signature){ + + case ATAD_SW_SMI_UPDATE: + //TRACE((-1,"AtadSmiHandler . ATAD_SW_SMI_UPDATE.\n")); + TimeVar.TimeZone = SmmVarBuffer->TimeZone; + TimeVar.Daylight = SmmVarBuffer->DayLight; + Status = pRS->SetVariable( L"EfiTime", + &gEfiTimeVariableGuid, + TimeVarFlags, + TimeVarSize, + &TimeVar ); + + if (!EFI_ERROR(Status)) SmmVarBuffer->Signature = ATAD_SW_SMI_OK; + else SmmVarBuffer->Signature = ATAD_SW_SMI_NOT_GOOD; + //checkpoint(0x30+i++); + break; + + case ATAD_SW_SMI_GET: + //TRACE((-1,"AtadSmiHandler . ATAD_SW_SMI_GET.\n")); + Status = pRS->GetVariable( L"EfiTime", + &gEfiTimeVariableGuid, + &TimeVarFlags, + &TimeVarSize, + &TimeVar ); + if (!EFI_ERROR(Status)) + { + SmmVarBuffer->TimeZone = TimeVar.TimeZone; + SmmVarBuffer->DayLight = TimeVar.Daylight; + SmmVarBuffer->Signature = ATAD_SW_SMI_OK; + } + else SmmVarBuffer->Signature = ATAD_SW_SMI_NOT_GOOD; + //checkpoint(0x40+j++); + break; + + default: + SmmVarBuffer->Signature = ATAD_SW_SMI_NOT_GOOD; + } + //checkpoint(0x26); + return EFI_SUCCESS; +} + +EFI_STATUS AtadSmiHandler2 ( + IN EFI_HANDLE DispatchHandle, + IN CONST VOID *Context OPTIONAL, + IN OUT VOID *CommBuffer OPTIONAL, + IN OUT UINTN *CommBufferSize OPTIONAL +) + +{ + + CONST EFI_SMM_SW_REGISTER_CONTEXT *DispatchContext = Context; + //checkpoint(0x22); + //TRACE((-1,"AtadSmiHandler2\n")); + if ((gAtadBuffer == NULL) || ((UINT8)DispatchContext->SwSmiInputValue != ACPI_TIME_AND_ALARM_SW_SMI)) + return EFI_DEVICE_ERROR; + //TRACE((-1,"AtadSmiHandler22\n")); + //checkpoint(0x23); + return AtadSmiHandler(); + +} + +EFI_STATUS AtadInSmmFunction( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable ) +{ + EFI_STATUS Status; + EFI_HANDLE Handle = 0; + +#if PI_SPECIFICATION_VERSION<0x0001000A + EFI_GUID EfiSmmSwDispatchProtocolGuid = EFI_SMM_SW_DISPATCH_PROTOCOL_GUID; + EFI_SMM_SW_DISPATCH_PROTOCOL *SwDispatch = NULL; + EFI_SMM_SW_DISPATCH_CONTEXT SwContext; + Status = pBS->LocateProtocol( +#else + EFI_GUID EfiSmmSwDispatchProtocolGuid = EFI_SMM_SW_DISPATCH2_PROTOCOL_GUID; + EFI_SMM_SW_DISPATCH2_PROTOCOL *SwDispatch = NULL; + EFI_SMM_SW_REGISTER_CONTEXT SwContext; + Status = pSmst->SmmLocateProtocol( +#endif + &EfiSmmSwDispatchProtocolGuid, + NULL, + &SwDispatch + ); + ASSERT_EFI_ERROR(Status); + if (EFI_ERROR(Status)) + return Status; + + SwContext.SwSmiInputValue = ACPI_TIME_AND_ALARM_SW_SMI; + Status = SwDispatch->Register ( SwDispatch, + AtadSmiHandler2, + &SwContext, + &Handle ); + ASSERT_EFI_ERROR(Status); + TRACE((TRACE_ALWAYS,"AtadInitSmmHandler pSwDispatch->Register Status=%r\n",Status)); + return Status; +} + + +EFI_STATUS +AtadSmiEntry( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable +) +{ + + + EFI_STATUS Status; + EFI_GUID AtadSmiGuid = ATAD_SMI_GUID; + UINTN VariableSize = sizeof(gAtadBuffer); + + InitAmiLib(ImageHandle, SystemTable); + + TRACE((TRACE_ALWAYS,"AtadSmiEntry\n")); + + Status = pRS->GetVariable ( L"AtadSmiBuffer", + &AtadSmiGuid, + NULL, + &VariableSize, + &gAtadBuffer ); + if ((EFI_ERROR(Status)) || (gAtadBuffer == NULL)) return EFI_NOT_FOUND; + //TRACE((-1, "AtadSmiEntry2 \n")); + Status = InitSmmHandler( + ImageHandle, + SystemTable, + AtadInSmmFunction, + NULL + ); + TRACE((TRACE_ALWAYS,"AtadInitSmmHandler Status=%r\n",Status)); + ASSERT_EFI_ERROR(Status); + + return EFI_SUCCESS; +} + + +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2010, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//**********************************************************************
\ No newline at end of file |