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//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1985-2010, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
//*************************************************************************
//
// $Header: /Alaska/SOURCE/Modules/EcPs2Kbd/EcPs2Kbd.c 3 6/29/10 3:01p Stacyh $
//
// $Revision: 3 $
//
// $Date: 6/29/10 3:01p $
//
//*****************************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/EcPs2Kbd/EcPs2Kbd.c $
//
// 3 6/29/10 3:01p Stacyh
// Added fix for EIP# 39388: SCT Execution test
// failed-4.6.3.5_VeB_0ABUC_004
//
// 2 6/03/08 10:07a Stacyh
// Added code to install a device path for PS2 Mouse.
// Added code to create/update the SIO_DEV_STATUS EFI variable
//
// 1 5/30/08 4:23p Stacyh
//
//
//*****************************************************************************
//<AMI_FHDR_START>
//----------------------------------------------------------------------------
//
// Name: EcPs2Kbd.C
//
// Description: This file contains code necessary to install the EC PS2 devices
// for EFI, ACPI and DOS.
//
// Notes:
//
//----------------------------------------------------------------------------
//<AMI_FHDR_END>
#include "token.h"
#include "EcPs2Kbd.h"
static EFI_GUID gSioDevStatusVarGuid = SIO_DEV_STATUS_VAR_GUID;
static PS2_KBD_DEVICE_PATH mEcPs2KbdDevicePath[1][1] = {
{
ACPI_DEVICE_PATH,
ACPI_DP,
(UINT8) (sizeof (ACPI_HID_DEVICE_PATH)),
(UINT8) ((sizeof (ACPI_HID_DEVICE_PATH)) >> 8),
EISA_PNP_ID(0x303),
0,
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
END_DEVICE_PATH_LENGTH,
0
}
};
static PS2_KBD_DEVICE_PATH mEcPs2MsDevicePath[1][1] = {
{
ACPI_DEVICE_PATH,
ACPI_DP,
(UINT8) (sizeof (ACPI_HID_DEVICE_PATH)),
(UINT8) ((sizeof (ACPI_HID_DEVICE_PATH)) >> 8),
EISA_PNP_ID(0xF03),
0,
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
END_DEVICE_PATH_LENGTH,
0
}
};
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: ConnectDevicePath
//
// Description: This function connects the EFI device to its parent device.
//
// Input: pPath - Pointer to an EFI device path.
//
// Output: VOID
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
VOID ConnectDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *pPath)
{
EFI_HANDLE Handle;
EFI_STATUS Status;
while (TRUE)
{
EFI_DEVICE_PATH_PROTOCOL *pLastPath = NULL;
EFI_DEVICE_PATH_PROTOCOL *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 (isEndNode(pPath))
{
// Last time let's do it recursively.
pBS->ConnectController(Handle, NULL, NULL, TRUE);
break;
}
if (pPath == pLastPath) break;
pLastPath = pPath;
if (EFI_ERROR(pBS->ConnectController(Handle, NULL, pPath, FALSE)))
break;
}
while (!isEndNode(pPath))
pPath = NEXT_NODE(pPath);
}
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: EcPs2KbdEntry
//
// Description: This function installs the Device Path for the EC Ps2.
//
// Input: ImageHandle Image handle
// SystemTable Pointer to the system table
//
// Output: EFI_STATUS Returned from PCI read call
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS EcPs2KbdEntry (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable)
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *KbTmpDp = NULL;
EFI_DEVICE_PATH_PROTOCOL *MsTmpDp = NULL;
ACPI_HID_DEVICE_PATH RbDp;
PCI_DEVICE_PATH PciDp;
PS2KBD_DEV *PrivateData;
SIO_DEV_STATUS SioDevStatusVar;
UINTN SioDevStatusVarSize = sizeof(SIO_DEV_STATUS);
UINT32 SioDevStatusVarAttributes = 0;
InitAmiLib(ImageHandle,SystemTable);
// Get root bridge device path
RbDp.Header.Type = ACPI_DEVICE_PATH;
RbDp.Header.SubType = ACPI_DP;
SET_NODE_LENGTH(&RbDp.Header, ACPI_DEVICE_PATH_LENGTH);
RbDp.HID = EISA_PNP_ID(0x0A03);
RbDp.UID = 0;
KbTmpDp = DPAddNode(KbTmpDp, &RbDp.Header);
MsTmpDp = DPAddNode(MsTmpDp, &RbDp.Header);
ConnectDevicePath(KbTmpDp);
ConnectDevicePath(MsTmpDp);
// Get PCI device path
PciDp.Header.SubType = HW_PCI_DP;
PciDp.Header.Type = HARDWARE_DEVICE_PATH;
SET_NODE_LENGTH(&PciDp.Header, HW_PCI_DEVICE_PATH_LENGTH);
PciDp.Function = SB_FUN_NUMBER;
PciDp.Device = SB_DEV_NUMBER;
KbTmpDp = DPAddNode(KbTmpDp, &PciDp.Header);
MsTmpDp = DPAddNode(MsTmpDp, &PciDp.Header);
ConnectDevicePath(KbTmpDp);
ConnectDevicePath(MsTmpDp);
// Install PS2 Keyboard Device Path
Status = pBS->AllocatePool (EfiBootServicesData, sizeof (PS2KBD_DEV), \
&PrivateData);
ASSERT (!EFI_ERROR (Status));
KbTmpDp = DPAddNode(KbTmpDp, (EFI_DEVICE_PATH_PROTOCOL *) \
&mEcPs2KbdDevicePath [0][0]);
ConnectDevicePath(KbTmpDp);
PrivateData->DevicePath = KbTmpDp;
PrivateData->Handle = NULL;
Status = pBS->InstallProtocolInterface (&PrivateData->Handle, \
&gEfiDevicePathProtocolGuid, EFI_NATIVE_INTERFACE, \
PrivateData->DevicePath);
if (EFI_ERROR (Status)) {
pBS->FreePool (PrivateData);
return EFI_DEVICE_ERROR;
}
// Install PS2 Mouse Device Path
Status = pBS->AllocatePool (EfiBootServicesData, sizeof (PS2KBD_DEV), \
&PrivateData);
ASSERT (!EFI_ERROR (Status));
MsTmpDp = DPAddNode(MsTmpDp, (EFI_DEVICE_PATH_PROTOCOL *) \
&mEcPs2MsDevicePath [0][0]);
ConnectDevicePath(MsTmpDp);
PrivateData->DevicePath = MsTmpDp;
PrivateData->Handle = NULL;
Status = pBS->InstallProtocolInterface (&PrivateData->Handle, \
&gEfiDevicePathProtocolGuid, EFI_NATIVE_INTERFACE, \
PrivateData->DevicePath);
if (EFI_ERROR (Status)) {
pBS->FreePool (PrivateData);
return EFI_DEVICE_ERROR;
}
// Create/Update SIO_DEV_STATUS EFI variable
Status = pRS->GetVariable(SIO_DEV_STATUS_VAR_NAME, &gSioDevStatusVarGuid,
&SioDevStatusVarAttributes, &SioDevStatusVarSize,
&SioDevStatusVar.DEV_STATUS);
if (EFI_ERROR(Status)) {
SioDevStatusVar.DEV_STATUS = 0;
SioDevStatusVarAttributes = EFI_VARIABLE_BOOTSERVICE_ACCESS;
}
SioDevStatusVar.Key60_64 = 1;
SioDevStatusVar.Ps2Mouse = 1;
Status = pRS->SetVariable(SIO_DEV_STATUS_VAR_NAME, &gSioDevStatusVarGuid,
SioDevStatusVarAttributes, SioDevStatusVarSize,
&SioDevStatusVar);
return Status;
}
//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1985-2010, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
|
