--- /dev/null
+/** @file\r
+\r
+Copyright (c) 2006 - 2007, Intel Corporation\r
+All rights reserved. This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+Module Name:\r
+\r
+ WinNtGopDriver.c\r
+\r
+Abstract:\r
+\r
+ This file implements the UEFI Device Driver model requirements for GOP\r
+\r
+ GOP is short hand for Graphics Output Protocol.\r
+\r
+\r
+**/\r
+\r
+//\r
+// The package level header files this module uses\r
+//\r
+#include <Uefi.h>\r
+#include <WinNtDxe.h>\r
+//\r
+// The protocols, PPI and GUID defintions for this module\r
+//\r
+#include <Guid/EventGroup.h>\r
+#include <Protocol/WinNtIo.h>\r
+#include <Protocol/ComponentName.h>\r
+#include <Protocol/SimpleTextIn.h>\r
+#include <Protocol/DriverBinding.h>\r
+#include <Protocol/GraphicsOutput.h>\r
+//\r
+// The Library classes this module consumes\r
+//\r
+#include <Library/DebugLib.h>\r
+#include <Library/BaseLib.h>\r
+#include <Library/UefiDriverEntryPoint.h>\r
+#include <Library/UefiLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/UefiBootServicesTableLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+\r
+#include "WinNtGop.h"\r
+\r
+EFI_DRIVER_BINDING_PROTOCOL gWinNtGopDriverBinding = {\r
+ WinNtGopDriverBindingSupported,\r
+ WinNtGopDriverBindingStart,\r
+ WinNtGopDriverBindingStop,\r
+ 0xa,\r
+ NULL,\r
+ NULL\r
+};\r
+\r
+/**\r
+ The user Entry Point for module WinNtGop. The user code starts with this function.\r
+\r
+ @param[in] ImageHandle The firmware allocated handle for the EFI image. \r
+ @param[in] SystemTable A pointer to the EFI System Table.\r
+ \r
+ @retval EFI_SUCCESS The entry point is executed successfully.\r
+ @retval other Some error occurs when executing this entry point.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+InitializeWinNtGop(\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+\r
+ //\r
+ // Install driver model protocol(s).\r
+ //\r
+ Status = EfiLibInstallAllDriverProtocols (\r
+ ImageHandle,\r
+ SystemTable,\r
+ &gWinNtGopDriverBinding,\r
+ ImageHandle,\r
+ &gWinNtGopComponentName,\r
+ NULL,\r
+ NULL\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+\r
+ return Status;\r
+}\r
+\r
+/**\r
+\r
+\r
+ @return None\r
+\r
+**/\r
+// TODO: This - add argument and description to function comment\r
+// TODO: Handle - add argument and description to function comment\r
+// TODO: RemainingDevicePath - add argument and description to function comment\r
+EFI_STATUS\r
+EFIAPI\r
+WinNtGopDriverBindingSupported (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Handle,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_WIN_NT_IO_PROTOCOL *WinNtIo;\r
+\r
+ //\r
+ // Open the IO Abstraction(s) needed to perform the supported test\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ Handle,\r
+ &gEfiWinNtIoProtocolGuid,\r
+ &WinNtIo,\r
+ This->DriverBindingHandle,\r
+ Handle,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = WinNtGopSupported (WinNtIo);\r
+\r
+ //\r
+ // Close the I/O Abstraction(s) used to perform the supported test\r
+ //\r
+ gBS->CloseProtocol (\r
+ Handle,\r
+ &gEfiWinNtIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Handle\r
+ );\r
+\r
+ return Status;\r
+}\r
+\r
+\r
+/**\r
+\r
+\r
+ @return None\r
+\r
+**/\r
+// TODO: This - add argument and description to function comment\r
+// TODO: Handle - add argument and description to function comment\r
+// TODO: RemainingDevicePath - add argument and description to function comment\r
+// TODO: EFI_UNSUPPORTED - add return value to function comment\r
+EFI_STATUS\r
+EFIAPI\r
+WinNtGopDriverBindingStart (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Handle,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
+ )\r
+{\r
+ EFI_WIN_NT_IO_PROTOCOL *WinNtIo;\r
+ EFI_STATUS Status;\r
+ GOP_PRIVATE_DATA *Private;\r
+\r
+ //\r
+ // Grab the protocols we need\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ Handle,\r
+ &gEfiWinNtIoProtocolGuid,\r
+ &WinNtIo,\r
+ This->DriverBindingHandle,\r
+ Handle,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // Allocate Private context data for SGO inteface.\r
+ //\r
+ Private = NULL;\r
+ Private = AllocatePool (sizeof (GOP_PRIVATE_DATA));\r
+ if (Private == NULL) {\r
+ goto Done;\r
+ }\r
+ //\r
+ // Set up context record\r
+ //\r
+ Private->Signature = GOP_PRIVATE_DATA_SIGNATURE;\r
+ Private->Handle = Handle;\r
+ Private->WinNtThunk = WinNtIo->WinNtThunk;\r
+\r
+ Private->ControllerNameTable = NULL;\r
+\r
+ AddUnicodeString (\r
+ "eng",\r
+ gWinNtGopComponentName.SupportedLanguages,\r
+ &Private->ControllerNameTable,\r
+ WinNtIo->EnvString\r
+ );\r
+\r
+ Private->WindowName = WinNtIo->EnvString;\r
+\r
+ Status = WinNtGopConstructor (Private);\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+ //\r
+ // Publish the Gop interface to the world\r
+ //\r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
+ &Private->Handle,\r
+ &gEfiGraphicsOutputProtocolGuid,\r
+ &Private->GraphicsOutput,\r
+ &gEfiSimpleTextInProtocolGuid,\r
+ &Private->SimpleTextIn,\r
+ NULL\r
+ );\r
+\r
+Done:\r
+ if (EFI_ERROR (Status)) {\r
+\r
+ gBS->CloseProtocol (\r
+ Handle,\r
+ &gEfiWinNtIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Handle\r
+ );\r
+\r
+ if (Private != NULL) {\r
+ //\r
+ // On Error Free back private data\r
+ //\r
+ if (Private->ControllerNameTable != NULL) {\r
+ FreeUnicodeStringTable (Private->ControllerNameTable);\r
+ }\r
+\r
+ FreePool (Private);\r
+ }\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+\r
+/**\r
+\r
+\r
+ @return None\r
+\r
+**/\r
+// TODO: This - add argument and description to function comment\r
+// TODO: Handle - add argument and description to function comment\r
+// TODO: NumberOfChildren - add argument and description to function comment\r
+// TODO: ChildHandleBuffer - add argument and description to function comment\r
+// TODO: EFI_NOT_STARTED - add return value to function comment\r
+// TODO: EFI_DEVICE_ERROR - add return value to function comment\r
+EFI_STATUS\r
+EFIAPI\r
+WinNtGopDriverBindingStop (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Handle,\r
+ IN UINTN NumberOfChildren,\r
+ IN EFI_HANDLE *ChildHandleBuffer\r
+ )\r
+{\r
+ EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;\r
+ EFI_STATUS Status;\r
+ GOP_PRIVATE_DATA *Private;\r
+\r
+ Status = gBS->OpenProtocol (\r
+ Handle,\r
+ &gEfiGraphicsOutputProtocolGuid,\r
+ &GraphicsOutput,\r
+ This->DriverBindingHandle,\r
+ Handle,\r
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ //\r
+ // If the GOP interface does not exist the driver is not started\r
+ //\r
+ return EFI_NOT_STARTED;\r
+ }\r
+\r
+ //\r
+ // Get our private context information\r
+ //\r
+ Private = GOP_PRIVATE_DATA_FROM_THIS (GraphicsOutput);\r
+\r
+ //\r
+ // Remove the SGO interface from the system\r
+ //\r
+ Status = gBS->UninstallMultipleProtocolInterfaces (\r
+ Private->Handle,\r
+ &gEfiGraphicsOutputProtocolGuid,\r
+ &Private->GraphicsOutput,\r
+ &gEfiSimpleTextInProtocolGuid,\r
+ &Private->SimpleTextIn,\r
+ NULL\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ //\r
+ // Shutdown the hardware\r
+ //\r
+ Status = WinNtGopDestructor (Private);\r
+ if (EFI_ERROR (Status)) {\r
+ return EFI_DEVICE_ERROR;\r
+ }\r
+\r
+ gBS->CloseProtocol (\r
+ Handle,\r
+ &gEfiWinNtIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Handle\r
+ );\r
+\r
+ //\r
+ // Free our instance data\r
+ //\r
+ FreeUnicodeStringTable (Private->ControllerNameTable);\r
+\r
+ FreePool (Private);\r
+\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+\r
+/**\r
+ Convert a unicode string to a UINTN\r
+\r
+ @param String Unicode string.\r
+\r
+ @return UINTN of the number represented by String.\r
+\r
+**/\r
+UINTN\r
+Atoi (\r
+ CHAR16 *String\r
+ )\r
+{\r
+ UINTN Number;\r
+ CHAR16 *Str;\r
+\r
+ //\r
+ // skip preceeding white space\r
+ //\r
+ Str = String;\r
+ while ((*Str) && (*Str == ' ' || *Str == '"')) {\r
+ Str++;\r
+ }\r
+\r
+ //\r
+ // Convert ot a Number\r
+ //\r
+ Number = 0;\r
+ while (*Str != '\0') {\r
+ if ((*Str >= '0') && (*Str <= '9')) {\r
+ Number = (Number * 10) +*Str - '0';\r
+ } else {\r
+ break;\r
+ }\r
+\r
+ Str++;\r
+ }\r
+\r
+ return Number;\r
+}\r
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