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//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2012, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
//**********************************************************************
// $Header: /Alaska/SOURCE/Modules/AmiGopPolicy/AmiGopPolicyLib.c 9 12/18/12 11:04p Josephlin $
//
// $Revision: 9 $
//
// $Date: 12/18/12 11:04p $
//**********************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/AmiGopPolicy/AmiGopPolicyLib.c $
//
// 9 12/18/12 11:04p Josephlin
// [TAG] EIP108311
// [Category] Improvement
// [Description] Create eLINK "OemGopEdidOverrideGetEdidList" for easy
// to implement EdidOverrideProtocol in project.
// [Files] AmiGopPolicy.c
// AmiGopPolicy.sdl
// AmiGopPolicy.mak
// AmiGopPolicyLib.c
//
// 8 10/29/12 5:53a Josephlin
// [TAG] EIP103432
// [Category] Bug Fix
// [Severity] Normal
// [Symptom] System hang up druing display switching with external GOP
// card.
// [RootCause] Compiler optimize issue.
// [Solution] Using the optimize pragma to prevent system hang up druing
// display switching.
//
// 7 8/23/12 5:50a Josephlin
// Change eLink handling processing to consider the hierarchy of
// xxxxxHookList. This is able to avoid that get incorrect status.
//
// 6 8/23/12 2:41a Josephlin
// Remove unnecessary conditionally including to fix build fail problem if
// CSM_SUPPORT = OFF.
//
// 5 7/30/12 5:31a Josephlin
// Removed bus number checking in AmiDefaultGopDeviceCheck() to consider
// the DSC-only platform supporting.
//
// 3 7/26/12 7:30a Josephlin
// Update File Header.
//
// 2 7/23/12 3:32a Josephlin
// 1. Added input argument SetupData for eLink OemGopSwitchHookList.
// 2. Created token "AmiGopPolicySetupFile" and "AmiGopPolicySetupString"
// for override sd and uni file.
// 3. Rename AmiGopPolicyCallback to AmiGopSwitchCallback in case user
// confuse.
//
// 1 6/29/12 3:44a Josephlin
// [TAG] EIP91970
// [Category] New Feature
// [Description] Initial Release for Display Switch with UEFI GOP driver
// support.
// [Files] AmiGopPolicy.cif
// AmiGopPolicy.c
// AmiGopPolicy.h
// AmiGopPolicy.mak
// AmiGopPolicy.sd
// AmiGopPolicy.sdl
// AmiGopPolicy.uni
// AmiGopPolicyLib.c
// AmiGopPolicySetup.c
//
//**********************************************************************
//<AMI_FHDR_START>
//
// Name: AmiGopPolicyLib.c
//
// Description: AmiGopPolicy initialization code in the Library stage
//
//<AMI_FHDR_END>
//**********************************************************************
//----------------------------------------------------------------------
// Include(s)
//----------------------------------------------------------------------
#include <Efi.h>
#include <AmiLib.h>
#include <AmiDxeLib.h>
#include <AmiCspLib.h>
#include <Setup.h>
#include <token.h>
#include <AmiLoadCsmPolicy.h>
#include <Protocol\DevicePath.h>
#if OEM_EDID_OVERRIDE_PROTOCOL_SUPPORT
#include <Protocol\EdidOverride.h>
#endif
//----------------------------------------------------------------------
// Constant, Macro and Type Definition(s)
//----------------------------------------------------------------------
// Constant Definition(s)
// Macro Definition(s)
// Type Definition(s)
typedef EFI_STATUS (OEM_GOP_DEVICE_CHECK) (
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE DriverBindingHandle,
IN EFI_PCI_IO_PROTOCOL *PciIo
);
typedef EFI_STATUS (OEM_GOP_SWITCH_HOOK) (
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE DriverBindingHandle,
IN SETUP_DATA *SetupData,
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
);
#if OEM_EDID_OVERRIDE_PROTOCOL_SUPPORT
typedef EFI_STATUS (OEM_GOP_EDID_OVERRIDE_GET_EDID) (
IN EFI_EDID_OVERRIDE_PROTOCOL *This,
IN EFI_HANDLE *ChildHandle,
OUT UINT32 *Attributes,
IN OUT UINTN *EdidSize,
IN OUT UINT8 **Edid
);
#endif
extern OEM_GOP_DEVICE_CHECK OEM_GOP_DEVICE_CHECK_LIST EndOfOemGopDeviceCheckList;
extern OEM_GOP_SWITCH_HOOK OEM_GOP_SWITCH_HOOK_LIST EndOfOemGopSwitchHookList;
#if OEM_EDID_OVERRIDE_PROTOCOL_SUPPORT
extern OEM_GOP_EDID_OVERRIDE_GET_EDID OEM_GOP_EDID_OVERRIDE_GET_EDID_LIST EndOfOemGopEdidOverrideGetEdidList;
#endif
// Function Prototype(s)
EFI_STATUS ConnectGopDevicePath (
IN EFI_HANDLE DriverBindingHandle,
IN EFI_DEVICE_PATH_PROTOCOL *pPath );
//----------------------------------------------------------------------
// Variable and External Declaration(s)
//----------------------------------------------------------------------
// Variable Declaration(s)
OEM_GOP_DEVICE_CHECK* OemGopDeviceCheckList[] = {OEM_GOP_DEVICE_CHECK_LIST NULL};
OEM_GOP_SWITCH_HOOK* OemGopSwitchHookList[] = {OEM_GOP_SWITCH_HOOK_LIST NULL};
#if OEM_EDID_OVERRIDE_PROTOCOL_SUPPORT
OEM_GOP_EDID_OVERRIDE_GET_EDID* OemGopEdidOverrideGetEdidList[] = {OEM_GOP_EDID_OVERRIDE_GET_EDID_LIST NULL};
#endif
// GUID Definition(s)
static EFI_GUID gAmiCsmThunkProtocolGuid = AMI_CSM_THUNK_PROTOCOL_GUID;
// Protocol Definition(s)
// External Declaration(s)
// Function Definition(s)
//----------------------------------------------------------------------
#pragma optimize("", off)
//<AMI_PHDR_START>
//----------------------------------------------------------------------
// Name: AmiGopDeviceCheck
//
// Description: None.
//
// Input: None.
//
// Output: None.
//
// Notes: None.
//
//----------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
AmiGopDeviceCheck (
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE DriverBindingHandle,
IN EFI_PCI_IO_PROTOCOL *PciIo )
{
EFI_STATUS Status = EFI_SUCCESS;
UINTN i;
for (i = 0; OemGopDeviceCheckList[i] != NULL; i++) {
Status = OemGopDeviceCheckList[i] (ControllerHandle, DriverBindingHandle, PciIo);
if(!EFI_ERROR(Status)) break;
}
return Status;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------
// Name: AmiDefaultGopDeviceCheck
//
// Description: Check if this VGA supports Display Switching function.
//
// Input: IN EFI_HANDLE ControllerHandle
// IN EFI_HANDLE DriverBindingHandle
// IN EFI_PCI_IO_PROTOCOL *PciIo
//
// Output: None.
//
// Notes: Display Switching function may failed because the GOP
// Driver is not supporting. Please contact VGA vendor to
// check for this function supporting.
//
//----------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
AmiDefaultGopDeviceCheck (
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE DriverBindingHandle,
IN EFI_PCI_IO_PROTOCOL *PciIo )
{
EFI_STATUS Status;
UINT8 PciClassCode;
if (!PciIo) return EFI_INVALID_PARAMETER;
// Check if this is ThunkDriver
Status = pBS->OpenProtocol(
DriverBindingHandle,
&gAmiCsmThunkProtocolGuid,
NULL,
NULL,
NULL,
EFI_OPEN_PROTOCOL_TEST_PROTOCOL);
if (!EFI_ERROR(Status)) return EFI_UNSUPPORTED;
// Check if this is VGA controller
Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint8, PCI_BCC, 1, &PciClassCode);
if (EFI_ERROR(Status) || (PciClassCode != PCI_CL_DISPLAY)) return EFI_UNSUPPORTED;
return EFI_SUCCESS;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------
// Name: AmiGopSwitchHook
//
// Description: None.
//
// Input: None.
//
// Output: None.
//
// Notes: None.
//
//----------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
AmiGopSwitchHook (
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE DriverBindingHandle,
IN SETUP_DATA *SetupData,
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath )
{
EFI_STATUS Status = EFI_SUCCESS;
UINTN i;
for (i = 0; OemGopSwitchHookList[i] != NULL; i++) {
Status = OemGopSwitchHookList[i] (ControllerHandle, DriverBindingHandle, SetupData, DevicePath);
if(!EFI_ERROR(Status)) break;
}
return Status;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------
// Name: AmiDefaultGopSwitchFunction
//
// Description: None.
//
// Input: None.
//
// Output: None.
//
// Notes: None.
//
//----------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
AmiDefaultGopSwitchFunction (
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE DriverBindingHandle,
IN SETUP_DATA *SetupData,
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath )
{
EFI_STATUS Status = EFI_SUCCESS;
Status = pBS->DisconnectController (ControllerHandle, NULL, NULL);
Status = ConnectGopDevicePath(DriverBindingHandle, DevicePath);
return Status;
}
#if OEM_EDID_OVERRIDE_PROTOCOL_SUPPORT
//<AMI_PHDR_START>
//----------------------------------------------------------------------
// Name: AmiGopEdidOverrideGetEdid
//
// Description: None.
//
// Input: None.
//
// Output: None.
//
// Notes: None.
//
//----------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
AmiGopEdidOverrideGetEdid (
IN EFI_EDID_OVERRIDE_PROTOCOL *This,
IN EFI_HANDLE *ChildHandle,
OUT UINT32 *Attributes,
IN OUT UINTN *EdidSize,
IN OUT UINT8 **Edid )
{
EFI_STATUS Status = EFI_SUCCESS;
UINTN i;
for (i = 0; OemGopEdidOverrideGetEdidList[i] != NULL; i++) {
Status = OemGopEdidOverrideGetEdidList[i] (This, ChildHandle, Attributes, EdidSize, Edid);
if(!EFI_ERROR(Status)) break;
}
return Status;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------
// Name: AmiDefaultGopEdidOverrideGetEdid
//
// Description: None.
//
// Input: None.
//
// Output: None.
//
// Notes: None.
//
//----------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
AmiDefaultGopEdidOverrideGetEdid (
IN EFI_EDID_OVERRIDE_PROTOCOL *This,
IN EFI_HANDLE *ChildHandle,
OUT UINT32 *Attributes,
IN OUT UINTN *EdidSize,
IN OUT UINT8 **Edid )
{
EFI_STATUS Status = EFI_UNSUPPORTED;
return EFI_UNSUPPORTED;
}
#endif
#pragma optimize("", on)
//<AMI_PHDR_START>
//----------------------------------------------------------------------
// Name: ConnectGopDevicePath
//
// Description: None.
//
// Input: None.
//
// Output: None.
//
// Notes: None.
//
//----------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
ConnectGopDevicePath (
IN EFI_HANDLE DriverBindingHandle,
IN EFI_DEVICE_PATH_PROTOCOL *pPath )
{
EFI_HANDLE Handle;
EFI_STATUS Status;
EFI_STATUS ConnectStatus = EFI_UNSUPPORTED;
if (pPath == NULL) return EFI_INVALID_PARAMETER;
while (TRUE)
{
EFI_DEVICE_PATH_PROTOCOL *pLastPath=NULL, *pFirstNode = pPath;
if (isEndNode(pPath))
{
if (pPath->SubType == END_ENTIRE_SUBTYPE) break;
pPath++;
continue;
}
while(TRUE){
EFI_DEVICE_PATH_PROTOCOL *Dp;
UINT8 SubType;
pPath = pFirstNode;
//LocateDevicePath can not work with multi-instance device paths.
//Prepare single instance device path and call LocateDevicePath
Dp = DPGetEndNode(pPath);
SubType = Dp->SubType;
Dp->SubType=END_ENTIRE_SUBTYPE;
Status = pBS->LocateDevicePath(&gEfiDevicePathProtocolGuid, &pPath, &Handle);
Dp->SubType=SubType;
if (EFI_ERROR(Status)) break;
if (pPath==pLastPath) break;
pLastPath = pPath;
ConnectStatus = pBS->ConnectController(Handle, &DriverBindingHandle, pPath, TRUE);
if (EFI_ERROR(ConnectStatus)) break;
else return ConnectStatus;
}
while (!isEndNode(pPath))
pPath = NEXT_NODE(pPath);
}
return ConnectStatus;
}
//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2012, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
|
