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alder_lake_bios/Insyde/InsydeModulePkg/Universal/IhisiServicesSmm/IhisiFets.c

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/** @file
This driver provides IHISI interface in SMM mode
;******************************************************************************
;* Copyright (c) 2014 - 2019, Insyde Software Corp. 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 "IhisiFets.h"
#include <Library/SmmChipsetSvcLib.h>
#include <Library/SmmOemSvcKernelLib.h>
#define EC_PART_SIZE EC256K
#define MAX_IHISI_EC_PART_SIZE EC2048K
STATIC
IHISI_REGISTER_TABLE
FETS_REGISTER_TABLE[] = {
//
// AH=20h
//
{ FETSWrite, "S20OemDoBeforeWrite", OemFetsDoBeforeWrite }, \
{ FETSWrite, "S20OemEcIdleTrue000", OemFetsEcIdleTrue }, \
{ FETSWrite, "S20OemFetsWrite0000", OemFetsWrite }, \
{ FETSWrite, "S20OemEcIdleFalse00", OemFetsEcIdleFalse }, \
{ FETSWrite, "S20OemDoAfterWrite0", OemFetsDoAfterWrite }, \
{ FETSWrite, "S20Cs_ShutdownMode0", ChipsetFetsWriteShutdownMode}, \
//
// AH=21h
//
{ FETSGetEcPartInfo, "S21OemGetEcPartInfo", OemGetEcPartInfo}
};
/**
AH=20h, FetsWrite before process, hook SmmCsSvcIhisiFetsDoBeforeFlashing.
@retval EFI_SUCCESS Flash EC successful.
@return Other Flash EC failed.
**/
EFI_STATUS
EFIAPI
OemFetsDoBeforeWrite (
VOID
)
{
EFI_STATUS Status;
UINTN SizeToFlash;
UINT8 DestBlockNo;
UINT8 ActionAfterFlashing;
UINT8 *FlashingDataBuffer;
UINT32 Ecx;
Status = EFI_SUCCESS;
FlashingDataBuffer = NULL;
SizeToFlash = 0;
DestBlockNo = 0;
ActionAfterFlashing = 0;
//
// Get flashing data from address stored in ESI
//
FlashingDataBuffer = (UINT8 *) (UINTN) IhisiProtReadCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RSI);
//
// Get the size to flash from EDI
//
SizeToFlash = (UINTN) IhisiProtReadCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RDI);
if (!IhisiProtBufferInCmdBuffer ((VOID *) FlashingDataBuffer, SizeToFlash)) {
return IHISI_BUFFER_RANGE_ERROR;
}
//
// Get destined block number from CH
//
DestBlockNo = (UINT8) (IhisiProtReadCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RCX) >> 8);
if ((SizeToFlash == 0) || (FlashingDataBuffer == NULL)) {
return IHISI_FBTS_READ_FAILED;
}
DEBUG_OEM_SVC ((DEBUG_INFO, "OemKernelServices Call: OemSvcIhisiS20HookFetsDoBeforeFlashing \n"));
Status = OemSvcIhisiS20HookFetsDoBeforeFlashing (&FlashingDataBuffer, &SizeToFlash, &DestBlockNo);
DEBUG_OEM_SVC ((DEBUG_INFO, "OemKernelServices OemSvcIhisiS20HookFetsDoBeforeFlashing Status: %r\n", Status));
IhisiProtWriteCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RDI, (UINT32)SizeToFlash);
Ecx = IhisiProtReadCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RCX) & 0xFFFF00FF;
Ecx |= (UINT32)DestBlockNo << 8;
IhisiProtWriteCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RCX, (UINT32)Ecx);
return IHISI_SUCCESS;
}
/**
AH=20h, FetsWrite Ec idle true, hook SmmCsSvcIhisiFetsEcIdle.
@retval EFI_SUCCESS Flash EC successful.
@return Other Flash EC failed.
**/
EFI_STATUS
EFIAPI
OemFetsEcIdleTrue (
VOID
)
{
EFI_STATUS Status;
DEBUG_OEM_SVC ((DEBUG_INFO, "OemKernelServices Call: OemSvcIhisiS20HookFetsEcIdle \n"));
Status = OemSvcIhisiS20HookFetsEcIdle (TRUE);
DEBUG_OEM_SVC ((DEBUG_INFO, "OemKernelServices OemSvcIhisiS20HookFetsEcIdle Status: %r\n", Status));
return EFI_SUCCESS;
}
/**
AH=20h, FetsWrite, Flash EC.
@retval EFI_SUCCESS Flash EC successful.
@return Other Flash EC failed.
**/
EFI_STATUS
EFIAPI
OemFetsWrite (
VOID
)
{
EFI_STATUS Status;
UINTN SizeToFlash;
UINT8 DestBlockNo;
UINT8 ActionAfterFlashing;
UINT8 *FlashingDataBuffer;
Status = EFI_SUCCESS;
FlashingDataBuffer = NULL;
SizeToFlash = 0;
DestBlockNo = 0;
ActionAfterFlashing = 0;
//
// Get flashing data from address stored in ESI
//
FlashingDataBuffer = (UINT8 *) (UINTN) IhisiProtReadCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RSI);
//
// Get the size to flash from EDI
//
SizeToFlash = (UINTN) IhisiProtReadCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RDI);
if (!IhisiProtBufferInCmdBuffer ((VOID *) FlashingDataBuffer, SizeToFlash)) {
return IHISI_BUFFER_RANGE_ERROR;
}
//
// Get destined block number from CH
//
DestBlockNo = (UINT8) (IhisiProtReadCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RCX) >> 8);
//
// Get action after flashing from CL
//
ActionAfterFlashing = (UINT8) IhisiProtReadCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RCX);
if ((SizeToFlash == 0) || (FlashingDataBuffer == NULL)) {
return IHISI_FBTS_READ_FAILED;
}
DEBUG_OEM_SVC ((DEBUG_INFO, "OemKernelServices Call: OemSvcIhisiS20HookFetsEcFlash \n"));
Status = OemSvcIhisiS20HookFetsEcFlash (FlashingDataBuffer, SizeToFlash, DestBlockNo);
DEBUG_OEM_SVC ((DEBUG_INFO, "OemKernelServices OemSvcIhisiS20HookFetsEcFlash Status: %r\n", Status));
return IHISI_SUCCESS;
}
/**
AH=20h, FetsWrite Ec idle false, hook SmmCsSvcIhisiFetsEcIdle.
@retval EFI_SUCCESS Flash EC successful.
@return Other Flash EC failed.
**/
EFI_STATUS
EFIAPI
OemFetsEcIdleFalse (
VOID
)
{
EFI_STATUS Status;
DEBUG_OEM_SVC ((DEBUG_INFO, "OemKernelServices Call: OemSvcIhisiS20HookFetsEcIdle \n"));
Status = OemSvcIhisiS20HookFetsEcIdle (FALSE);
DEBUG_OEM_SVC ((DEBUG_INFO, "OemKernelServices OemSvcIhisiS20HookFetsEcIdle Status: %r\n", Status));
return IHISI_SUCCESS;
}
/**
AH=20h, FetsWrite after process, hook SmmCsSvcIhisiFetsDoAfterFlashing.
@retval EFI_SUCCESS Flash EC successful.
@return Other Flash EC failed.
**/
EFI_STATUS
EFIAPI
OemFetsDoAfterWrite (
VOID
)
{
EFI_STATUS Status;
UINT8 ActionAfterFlashing;
ActionAfterFlashing = (UINT8) IhisiProtReadCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RCX);
DEBUG_OEM_SVC ((DEBUG_INFO, "OemKernelServices Call: OemSvcIhisiS20HookFetsDoAfterFlashing \n"));
Status = OemSvcIhisiS20HookFetsDoAfterFlashing (ActionAfterFlashing);
DEBUG_OEM_SVC ((DEBUG_INFO, "OemKernelServices OemSvcIhisiS20HookFetsDoAfterFlashing Status: %r\n", Status));
if (Status == EFI_SUCCESS) {
return IHISI_END_FUNCTION_CHAIN;
}
return IHISI_SUCCESS;
}
/**
AH=20h, FetsWrite Dos shutown, hook SmmCsSvcIhisiFetsShutdown/SmmCsSvcIhisiFetsReboot.
@retval EFI_SUCCESS Flash EC successful.
@return Other Flash EC failed.
**/
EFI_STATUS
EFIAPI
ChipsetFetsWriteShutdownMode (
VOID
)
{
UINT8 ActionAfterFlashing;
ActionAfterFlashing = (UINT8) IhisiProtReadCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RCX);
switch (ActionAfterFlashing) {
case EcFlashDosReboot:
SmmCsSvcIhisiFetsReboot ();
break;
case EcFlashDoshutdown:
SmmCsSvcIhisiFetsShutdown ();
break;
case EcFlashOSShutdown:
case EcFlashOSReboot:
case EcFlashDoNothing:
case EcFlashContinueToFlash:
default:
break;
}
return IHISI_SUCCESS;
}
/**
AH=21h, Get EC part information.hook SmmCsSvcIhisiFetsGetEcPartInfo.
@retval EFI_SUCCESS Get EC part information successful.
**/
EFI_STATUS
EFIAPI
OemGetEcPartInfo (
VOID
)
{
EFI_STATUS Status;
UINT32 Ecx;
UINT32 EcPartSize;
FETS_EC_PART_SIZE_STRUCTURE_INPUT *EcPartSizeTable;
UINT32 IhisiStatus;
IhisiStatus = IHISI_SUCCESS;
EcPartSize = EC_PART_SIZE;
DEBUG_OEM_SVC ((DEBUG_INFO, "OemKernelServices Call: OemSvcIhisiS21HookFetsGetPartInfo \n"));
Status = OemSvcIhisiS21HookFetsGetPartInfo (&IhisiStatus, &EcPartSize);
DEBUG_OEM_SVC ((DEBUG_INFO, "OemKernelServices OemSvcIhisiS21HookFetsGetPartInfo Status: %r\n", Status));
//
// When the total count of EC image size is not defined in CH, it need to report the real size in ESI.
//
if (Status == EFI_MEDIA_CHANGED && EcPartSize > MAX_IHISI_EC_PART_SIZE) {
EcPartSizeTable = (FETS_EC_PART_SIZE_STRUCTURE_INPUT *) (UINTN) IhisiProtReadCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RSI);
if (!IhisiProtBufferInCmdBuffer ((VOID *) EcPartSizeTable, sizeof(FETS_EC_PART_SIZE_STRUCTURE_INPUT))) {
return IHISI_BUFFER_RANGE_ERROR;
}
//
//BIOS must make sure the input buffer signature is "$BUFFER_", then can use this buffer to return data.
//If the signature is incorrect, that means the buffer does not be prepared by AP.
//When BIOS need to use this buffer but the signatureis incorrect, then BIOS can return IHISI_OB_LEN_TOO_SMALL in AL.
//
if (EcPartSizeTable->Signature != EC_PARTSIZE_SIGNATURE) {
return IHISI_OB_LEN_TOO_SMALL;
}
EcPartSizeTable->Size = EcPartSize;
EcPartSize = REPORT_FROM_ESI;
}
Ecx = IhisiProtReadCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RCX) & 0xFFFFFF00;
IhisiProtWriteCpuReg32 (EFI_SMM_SAVE_STATE_REGISTER_RCX, Ecx|EcPartSize);
return (EFI_STATUS)IhisiStatus;
}
EFI_STATUS
InstallFetsServices (
VOID
)
{
EFI_STATUS Status;
IHISI_REGISTER_TABLE *SubFuncTable;
UINT16 TableCount;
SubFuncTable = FETS_REGISTER_TABLE;
TableCount = sizeof(FETS_REGISTER_TABLE)/sizeof(FETS_REGISTER_TABLE[0]);
Status = RegisterIhisiSubFunction (SubFuncTable, TableCount);
if (EFI_ERROR(Status)) {
ASSERT_EFI_ERROR (Status);
}
return EFI_SUCCESS;
}
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