Add WinNtGop driver into Nt32Pkg
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2784 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2
378
Nt32Pkg/WinNtGopDxe/WinNtGopDriver.c
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378
Nt32Pkg/WinNtGopDxe/WinNtGopDriver.c
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/** @file
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Copyright (c) 2006 - 2007, 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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WinNtGopDriver.c
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Abstract:
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This file implements the UEFI Device Driver model requirements for GOP
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GOP is short hand for Graphics Output Protocol.
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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 <Guid/EventGroup.h>
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#include <Protocol/WinNtIo.h>
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#include <Protocol/ComponentName.h>
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#include <Protocol/SimpleTextIn.h>
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#include <Protocol/DriverBinding.h>
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#include <Protocol/GraphicsOutput.h>
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//
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// The Library classes this module consumes
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//
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#include <Library/DebugLib.h>
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#include <Library/BaseLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/UefiLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include "WinNtGop.h"
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EFI_DRIVER_BINDING_PROTOCOL gWinNtGopDriverBinding = {
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WinNtGopDriverBindingSupported,
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WinNtGopDriverBindingStart,
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WinNtGopDriverBindingStop,
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0xa,
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NULL,
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NULL
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};
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/**
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The user Entry Point for module WinNtGop. The user code starts with this function.
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@param[in] ImageHandle The firmware allocated handle for the EFI image.
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@param[in] SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The entry point is executed successfully.
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@retval other Some error occurs when executing this entry point.
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**/
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EFI_STATUS
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EFIAPI
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InitializeWinNtGop(
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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//
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// Install driver model protocol(s).
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//
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Status = EfiLibInstallAllDriverProtocols (
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ImageHandle,
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SystemTable,
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&gWinNtGopDriverBinding,
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ImageHandle,
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&gWinNtGopComponentName,
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NULL,
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NULL
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);
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ASSERT_EFI_ERROR (Status);
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return Status;
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}
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/**
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@return None
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**/
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// TODO: This - add argument and description to function comment
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// TODO: Handle - add argument and description to function comment
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// TODO: RemainingDevicePath - add argument and description to function comment
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EFI_STATUS
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EFIAPI
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WinNtGopDriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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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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//
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// Open the IO Abstraction(s) needed to perform the supported test
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//
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Status = gBS->OpenProtocol (
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Handle,
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&gEfiWinNtIoProtocolGuid,
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&WinNtIo,
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This->DriverBindingHandle,
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Handle,
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EFI_OPEN_PROTOCOL_BY_DRIVER
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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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Status = WinNtGopSupported (WinNtIo);
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//
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// Close the I/O Abstraction(s) used to perform the supported test
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//
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gBS->CloseProtocol (
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Handle,
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&gEfiWinNtIoProtocolGuid,
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This->DriverBindingHandle,
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Handle
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);
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return Status;
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}
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/**
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@return None
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**/
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// TODO: This - add argument and description to function comment
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// TODO: Handle - add argument and description to function comment
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// TODO: RemainingDevicePath - add argument and description to function comment
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// TODO: EFI_UNSUPPORTED - add return value to function comment
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EFI_STATUS
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EFIAPI
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WinNtGopDriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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)
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{
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EFI_WIN_NT_IO_PROTOCOL *WinNtIo;
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EFI_STATUS Status;
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GOP_PRIVATE_DATA *Private;
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//
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// Grab the protocols we need
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//
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Status = gBS->OpenProtocol (
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Handle,
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&gEfiWinNtIoProtocolGuid,
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&WinNtIo,
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This->DriverBindingHandle,
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Handle,
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EFI_OPEN_PROTOCOL_BY_DRIVER
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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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//
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// Allocate Private context data for SGO inteface.
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//
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Private = NULL;
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Private = AllocatePool (sizeof (GOP_PRIVATE_DATA));
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if (Private == NULL) {
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goto Done;
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}
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//
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// Set up context record
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//
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Private->Signature = GOP_PRIVATE_DATA_SIGNATURE;
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Private->Handle = Handle;
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Private->WinNtThunk = WinNtIo->WinNtThunk;
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Private->ControllerNameTable = NULL;
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AddUnicodeString (
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"eng",
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gWinNtGopComponentName.SupportedLanguages,
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&Private->ControllerNameTable,
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WinNtIo->EnvString
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);
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Private->WindowName = WinNtIo->EnvString;
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Status = WinNtGopConstructor (Private);
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if (EFI_ERROR (Status)) {
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goto Done;
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}
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//
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// Publish the Gop interface to the world
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//
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Status = gBS->InstallMultipleProtocolInterfaces (
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&Private->Handle,
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&gEfiGraphicsOutputProtocolGuid,
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&Private->GraphicsOutput,
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&gEfiSimpleTextInProtocolGuid,
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&Private->SimpleTextIn,
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NULL
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);
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Done:
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if (EFI_ERROR (Status)) {
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gBS->CloseProtocol (
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Handle,
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&gEfiWinNtIoProtocolGuid,
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This->DriverBindingHandle,
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Handle
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);
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if (Private != NULL) {
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//
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// On Error Free back private data
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//
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if (Private->ControllerNameTable != NULL) {
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FreeUnicodeStringTable (Private->ControllerNameTable);
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}
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FreePool (Private);
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}
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}
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return Status;
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}
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/**
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@return None
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**/
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// TODO: This - add argument and description to function comment
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// TODO: Handle - add argument and description to function comment
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// TODO: NumberOfChildren - add argument and description to function comment
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// TODO: ChildHandleBuffer - add argument and description to function comment
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// TODO: EFI_NOT_STARTED - add return value to function comment
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// TODO: EFI_DEVICE_ERROR - add return value to function comment
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EFI_STATUS
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EFIAPI
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WinNtGopDriverBindingStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Handle,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer
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)
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{
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EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
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EFI_STATUS Status;
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GOP_PRIVATE_DATA *Private;
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Status = gBS->OpenProtocol (
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Handle,
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&gEfiGraphicsOutputProtocolGuid,
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&GraphicsOutput,
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This->DriverBindingHandle,
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Handle,
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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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//
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// If the GOP interface does not exist the driver is not started
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//
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return EFI_NOT_STARTED;
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}
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//
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// Get our private context information
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//
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Private = GOP_PRIVATE_DATA_FROM_THIS (GraphicsOutput);
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//
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// Remove the SGO interface from the system
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//
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Status = gBS->UninstallMultipleProtocolInterfaces (
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Private->Handle,
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&gEfiGraphicsOutputProtocolGuid,
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&Private->GraphicsOutput,
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&gEfiSimpleTextInProtocolGuid,
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&Private->SimpleTextIn,
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NULL
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);
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if (!EFI_ERROR (Status)) {
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//
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// Shutdown the hardware
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//
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Status = WinNtGopDestructor (Private);
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if (EFI_ERROR (Status)) {
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return EFI_DEVICE_ERROR;
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}
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gBS->CloseProtocol (
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Handle,
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&gEfiWinNtIoProtocolGuid,
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This->DriverBindingHandle,
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Handle
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);
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//
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// Free our instance data
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//
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FreeUnicodeStringTable (Private->ControllerNameTable);
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FreePool (Private);
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}
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return Status;
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}
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/**
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Convert a unicode string to a UINTN
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@param String Unicode string.
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@return UINTN of the number represented by String.
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**/
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UINTN
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Atoi (
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CHAR16 *String
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)
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{
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UINTN Number;
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CHAR16 *Str;
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//
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// skip preceeding white space
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//
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Str = String;
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while ((*Str) && (*Str == ' ' || *Str == '"')) {
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Str++;
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}
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//
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// Convert ot a Number
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//
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Number = 0;
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while (*Str != '\0') {
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if ((*Str >= '0') && (*Str <= '9')) {
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Number = (Number * 10) +*Str - '0';
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} else {
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break;
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}
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Str++;
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}
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return Number;
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}
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