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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
UnixThunk.c
Abstract:
Produce UnixThunk protocol and it's associated device path and controller
state protocols. UnixThunk is to the emulation environment as
PCI_ROOT_BRIGE is to real hardware. The UnixBusDriver is the child of this
driver.
Since we are a root hardware abstraction we do not install a Driver Binding
protocol on this handle. This driver can only support one one UnixThunk protocol
in the system, since the device path is hard coded.
--*/
#include "PiDxe.h"
#include "UnixDxe.h"
#include "UnixThunk.h"
#include <Protocol/DevicePath.h>
#include <Library/DebugLib.h>
#include <Library/UefiLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UnixLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
//
// WinNtThunk Device Path Protocol Instance
//
static UNIX_THUNK_DEVICE_PATH mUnixThunkDevicePath = {
{
{
HARDWARE_DEVICE_PATH,
HW_VENDOR_DP,
{
(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
}
},
EFI_UNIX_THUNK_PROTOCOL_GUID,
},
{
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
{
END_DEVICE_PATH_LENGTH,
0
}
}
};
EFI_STATUS
EFIAPI
InitializeUnixThunk (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
Install UnixThunk Protocol and it's associated Device Path protocol
Arguments:
(Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)
Returns:
EFI_SUCEESS - UnixThunk protocol is added or error status from
gBS->InstallMultiProtocolInterfaces().
--*/
// TODO: ImageHandle - add argument and description to function comment
// TODO: SystemTable - add argument and description to function comment
{
EFI_STATUS Status;
EFI_HANDLE ControllerHandle;
ControllerHandle = NULL;
Status = gBS->InstallMultipleProtocolInterfaces (
&ControllerHandle,
&gEfiUnixThunkProtocolGuid,
gUnix,
&gEfiDevicePathProtocolGuid,
&mUnixThunkDevicePath,
NULL
);
return Status;
}
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