ICE_TEA_BIOS/Board/Oem/L05AlderLakePMultiBoardPkg/Library/BaseOemSvcChipsetLib/OemSvcEcGetLidState.c
LCFC\AiXia.Jiang a870bff2f4 1.Frist commit
2022-09-30 14:59:06 +08:00

108 lines
3.2 KiB
C

/** @file
Provide hook function for OEM to get lid state from EC.
;******************************************************************************
;* Copyright (c) 2014 - 2020, Insyde Software Corporation. All Rights Reserved.
;*
;* You may not reproduce, distribute, publish, display, perform, modify, adapt,
;* transmit, broadcast, present, recite, release, license or otherwise exploit
;* any part of this publication in any form, by any means, without the prior
;* written permission of Insyde Software Corporation.
;*
;******************************************************************************
*/
#include <Library/BaseOemSvcChipsetLib.h>
#include <Library/DebugLib.h>
#include <Library/EcMiscLib.h>
#include <PlatformBoardId.h>
#include <Library/CmosLib.h>
#include <ChipsetCmos.h>
//[-start-211020-KEBIN00060-modify]//
#ifdef LCFC_SUPPORT
#include <Library/LfcEcLib.h>
#endif
//[-end-211020-KEBIN00060-modify]//
typedef enum {
LidClosed,
LidOpen,
LidStatusMax
} LID_STATUS;
/**
Get Lid state from EC.
@param[out] EcGetLidState The status of get Lid.
@param[out] LidIsOpen TRUE: Lid is open; FALSE: Lid is close.
@retval EFI_UNSUPPORTED Returns unsupported by default.
@retval EFI_MEDIA_CHANGED Alter the Configuration Parameter.
@retval EFI_SUCCESS The function performs the same operation as caller.
The caller will skip the specified behavior and assuming
that it has been handled completely by this function.
*/
EFI_STATUS
OemSvcEcGetLidState (
OUT EFI_STATUS *EcGetLidState,
OUT UINT8 *LidIsOpen
)
{
//[-start-210519-KEBIN00001-modify]//
//[-start-211020-KEBIN00060-modify]//
#ifdef LCFC_SUPPORT
// EFI_STATUS Status;
UINT8 Data;
*EcGetLidState = EFI_SUCCESS;
// Status = LfcEcLibEcRamRead (0xB8, &Data); // get LID status
Data = MmioRead8 (0xFE0B04B8); //EC RAM4 0xB8 bit 1
// if (EFI_ERROR(Status)) {
// return Status;
// }
if(Data&0x02) //EC RAM4 0xB8 bit 1
*LidIsOpen = LidOpen;
else
*LidIsOpen = LidClosed;
//[-start-220307-QINGLIN0164-add]//
#if defined LCFC_SUPPORT
*LidIsOpen = LidOpen;
#endif
//[-end-220307-QINGLIN0164-add]//
return EFI_MEDIA_CHANGED;
//[-end-211020-KEBIN00060-modify]//
#else
UINT8 PortDataOut;
UINT8 DataBuffer[1];
//
// If the platform does not support a lid, the function must return EFI_UNSUPPORTED
//
if (PcdGet8 (PcdPlatformType) == TypeTrad && PcdGet8 (PcdPlatformFlavor) == FlavorDesktop) {
DEBUG ((DEBUG_INFO, "Returning Lid status as unsupported to GOP for DT/AIO board\n"));
return EFI_UNSUPPORTED;
}
if (PcdGetBool (PcdEcPresent)) {
if (FeaturePcdGet (PcdUseCrbEcFlag)) {
DataBuffer[0] = EC_D_LID_STATE;
*EcGetLidState = ReadEcRam (DataBuffer);
if (*EcGetLidState == EFI_SUCCESS) {
PortDataOut = DataBuffer[0];
if ((PortDataOut & EC_B_LID_STATUS_OPEN) == EC_B_LID_STATUS_OPEN) {
*LidIsOpen = LidOpen;
} else {
*LidIsOpen = LidClosed;
}
return EFI_MEDIA_CHANGED;
}
}
}
return EFI_UNSUPPORTED;
#endif
//[-start-210519-KEBIN00001-modify]//
}