mirror of https://github.com/acidanthera/audk.git
224 lines
8.1 KiB
C
224 lines
8.1 KiB
C
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/*++
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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ComponentName.c
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Abstract:
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--*/
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//
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// The package level header files this module uses
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//
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#include <Uefi.h>
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#include <WinNtDxe.h>
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//
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// The protocols, PPI and GUID defintions for this module
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//
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#include <Protocol/WinNtThunk.h>
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#include <Protocol/WinNtIo.h>
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#include <Protocol/ComponentName.h>
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#include <Protocol/DriverBinding.h>
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#include <Protocol/DevicePath.h>
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#include "WinNtBusDriver.h"
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//
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// EFI Component Name Functions
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//
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EFI_STATUS
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EFIAPI
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WinNtBusDriverComponentNameGetDriverName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN CHAR8 *Language,
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OUT CHAR16 **DriverName
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);
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EFI_STATUS
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EFIAPI
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WinNtBusDriverComponentNameGetControllerName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_HANDLE ChildHandle OPTIONAL,
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IN CHAR8 *Language,
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OUT CHAR16 **ControllerName
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);
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//
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// EFI Component Name Protocol
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//
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EFI_COMPONENT_NAME_PROTOCOL gWinNtBusDriverComponentName = {
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WinNtBusDriverComponentNameGetDriverName,
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WinNtBusDriverComponentNameGetControllerName,
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"eng"
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};
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static EFI_UNICODE_STRING_TABLE mWinNtBusDriverNameTable[] = {
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{ "eng", L"Windows Bus Driver" },
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{ NULL , NULL }
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};
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EFI_STATUS
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EFIAPI
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WinNtBusDriverComponentNameGetDriverName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN CHAR8 *Language,
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OUT CHAR16 **DriverName
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)
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/*++
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Routine Description:
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Retrieves a Unicode string that is the user readable name of the EFI Driver.
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Arguments:
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This - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
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Language - A pointer to a three character ISO 639-2 language identifier.
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This is the language of the driver name that that the caller
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is requesting, and it must match one of the languages specified
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in SupportedLanguages. The number of languages supported by a
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driver is up to the driver writer.
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DriverName - A pointer to the Unicode string to return. This Unicode string
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is the name of the driver specified by This in the language
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specified by Language.
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Returns:
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EFI_SUCCESS - The Unicode string for the Driver specified by This
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and the language specified by Language was returned
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in DriverName.
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EFI_INVALID_PARAMETER - Language is NULL.
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EFI_INVALID_PARAMETER - DriverName is NULL.
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EFI_UNSUPPORTED - The driver specified by This does not support the
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language specified by Language.
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--*/
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{
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return LookupUnicodeString (
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Language,
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gWinNtBusDriverComponentName.SupportedLanguages,
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mWinNtBusDriverNameTable,
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DriverName
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);
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}
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EFI_STATUS
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EFIAPI
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WinNtBusDriverComponentNameGetControllerName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_HANDLE ChildHandle OPTIONAL,
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IN CHAR8 *Language,
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OUT CHAR16 **ControllerName
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)
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/*++
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Routine Description:
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Retrieves a Unicode string that is the user readable name of the controller
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that is being managed by an EFI Driver.
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Arguments:
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This - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
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ControllerHandle - The handle of a controller that the driver specified by
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This is managing. This handle specifies the controller
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whose name is to be returned.
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ChildHandle - The handle of the child controller to retrieve the name
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of. This is an optional parameter that may be NULL. It
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will be NULL for device drivers. It will also be NULL
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for a bus drivers that wish to retrieve the name of the
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bus controller. It will not be NULL for a bus driver
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that wishes to retrieve the name of a child controller.
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Language - A pointer to a three character ISO 639-2 language
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identifier. This is the language of the controller name
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that that the caller is requesting, and it must match one
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of the languages specified in SupportedLanguages. The
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number of languages supported by a driver is up to the
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driver writer.
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ControllerName - A pointer to the Unicode string to return. This Unicode
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string is the name of the controller specified by
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ControllerHandle and ChildHandle in the language specified
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by Language from the point of view of the driver specified
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by This.
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Returns:
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EFI_SUCCESS - The Unicode string for the user readable name in the
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language specified by Language for the driver
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specified by This was returned in DriverName.
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EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
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EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
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EFI_INVALID_PARAMETER - Language is NULL.
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EFI_INVALID_PARAMETER - ControllerName is NULL.
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EFI_UNSUPPORTED - The driver specified by This is not currently managing
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the controller specified by ControllerHandle and
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ChildHandle.
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EFI_UNSUPPORTED - The driver specified by This does not support the
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language specified by Language.
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--*/
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{
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EFI_STATUS Status;
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EFI_WIN_NT_IO_PROTOCOL *WinNtIo;
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WIN_NT_IO_DEVICE *Private;
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//
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// Make sure this driver is currently managing ControllHandle
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//
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Status = EfiTestManagedDevice (
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ControllerHandle,
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gWinNtBusDriverBinding.DriverBindingHandle,
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&gEfiWinNtThunkProtocolGuid
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// This is a bus driver, so ChildHandle can not be NULL.
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//
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if (ChildHandle == NULL) {
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return EFI_UNSUPPORTED;
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}
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Status = EfiTestChildHandle (
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ControllerHandle,
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ChildHandle,
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&gEfiWinNtThunkProtocolGuid
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// Get our context back
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//
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Status = gBS->OpenProtocol (
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ChildHandle,
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&gEfiWinNtIoProtocolGuid,
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&WinNtIo,
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gWinNtBusDriverBinding.DriverBindingHandle,
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ChildHandle,
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EFI_OPEN_PROTOCOL_GET_PROTOCOL
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);
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if (EFI_ERROR (Status)) {
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return EFI_UNSUPPORTED;
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}
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Private = WIN_NT_IO_DEVICE_FROM_THIS (WinNtIo);
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return LookupUnicodeString (
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Language,
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gWinNtBusDriverComponentName.SupportedLanguages,
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Private->ControllerNameTable,
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ControllerName
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);
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}
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