diff options
Diffstat (limited to 'EdkNt32Pkg/Dxe/WinNtThunk/Bus/Uga/WinNtUgaDriver.c')
| -rw-r--r-- | EdkNt32Pkg/Dxe/WinNtThunk/Bus/Uga/WinNtUgaDriver.c | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/EdkNt32Pkg/Dxe/WinNtThunk/Bus/Uga/WinNtUgaDriver.c b/EdkNt32Pkg/Dxe/WinNtThunk/Bus/Uga/WinNtUgaDriver.c new file mode 100644 index 0000000000..58908d9f07 --- /dev/null +++ b/EdkNt32Pkg/Dxe/WinNtThunk/Bus/Uga/WinNtUgaDriver.c @@ -0,0 +1,343 @@ +/*++
+
+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:
+
+ WinNtUgaDriver.c
+
+Abstract:
+
+ This file implements the EFI 1.1 Device Driver model requirements for UGA
+
+ UGA is short hand for Universal Graphics Abstraction protocol.
+
+ This file is a verision of UgaIo the uses WinNtThunk system calls as an IO
+ abstraction. For a PCI device WinNtIo would be replaced with
+ a PCI IO abstraction that abstracted a specific PCI device.
+
+--*/
+
+#include "WinNtUga.h"
+
+EFI_DRIVER_BINDING_PROTOCOL gWinNtUgaDriverBinding = {
+ WinNtUgaDriverBindingSupported,
+ WinNtUgaDriverBindingStart,
+ WinNtUgaDriverBindingStop,
+ 0x10,
+ NULL,
+ NULL
+};
+
+
+EFI_STATUS
+EFIAPI
+WinNtUgaDriverBindingSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Handle,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+ None
+
+--*/
+// TODO: This - add argument and description to function comment
+// TODO: Handle - add argument and description to function comment
+// TODO: RemainingDevicePath - add argument and description to function comment
+{
+ EFI_STATUS Status;
+ EFI_WIN_NT_IO_PROTOCOL *WinNtIo;
+
+ //
+ // Open the IO Abstraction(s) needed to perform the supported test
+ //
+ Status = gBS->OpenProtocol (
+ Handle,
+ &gEfiWinNtIoProtocolGuid,
+ &WinNtIo,
+ This->DriverBindingHandle,
+ Handle,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = WinNtUgaSupported (WinNtIo);
+
+ //
+ // Close the I/O Abstraction(s) used to perform the supported test
+ //
+ gBS->CloseProtocol (
+ Handle,
+ &gEfiWinNtIoProtocolGuid,
+ This->DriverBindingHandle,
+ Handle
+ );
+
+ return Status;
+}
+
+EFI_STATUS
+EFIAPI
+WinNtUgaDriverBindingStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Handle,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+ None
+
+--*/
+// TODO: This - add argument and description to function comment
+// TODO: Handle - add argument and description to function comment
+// TODO: RemainingDevicePath - add argument and description to function comment
+// TODO: EFI_UNSUPPORTED - add return value to function comment
+{
+ EFI_WIN_NT_IO_PROTOCOL *WinNtIo;
+ EFI_STATUS Status;
+ UGA_PRIVATE_DATA *Private;
+
+ //
+ // Grab the protocols we need
+ //
+ Status = gBS->OpenProtocol (
+ Handle,
+ &gEfiWinNtIoProtocolGuid,
+ &WinNtIo,
+ This->DriverBindingHandle,
+ Handle,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ //
+ // Allocate Private context data for SGO inteface.
+ //
+ Private = NULL;
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ sizeof (UGA_PRIVATE_DATA),
+ &Private
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+ //
+ // Set up context record
+ //
+ Private->Signature = UGA_PRIVATE_DATA_SIGNATURE;
+ Private->Handle = Handle;
+ Private->WinNtThunk = WinNtIo->WinNtThunk;
+
+ Private->ControllerNameTable = NULL;
+
+ AddUnicodeString (
+ "eng",
+ gWinNtUgaComponentName.SupportedLanguages,
+ &Private->ControllerNameTable,
+ WinNtIo->EnvString
+ );
+
+ Private->WindowName = WinNtIo->EnvString;
+
+ Status = WinNtUgaConstructor (Private);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+ //
+ // Publish the Uga interface to the world
+ //
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Private->Handle,
+ &gEfiUgaDrawProtocolGuid,
+ &Private->UgaDraw,
+ &gEfiSimpleTextInProtocolGuid,
+ &Private->SimpleTextIn,
+ NULL
+ );
+
+Done:
+ if (EFI_ERROR (Status)) {
+
+ gBS->CloseProtocol (
+ Handle,
+ &gEfiWinNtIoProtocolGuid,
+ This->DriverBindingHandle,
+ Handle
+ );
+
+ if (Private != NULL) {
+ //
+ // On Error Free back private data
+ //
+ if (Private->ControllerNameTable != NULL) {
+ FreeUnicodeStringTable (Private->ControllerNameTable);
+ }
+
+ gBS->FreePool (Private);
+ }
+ }
+
+ return Status;
+}
+
+EFI_STATUS
+EFIAPI
+WinNtUgaDriverBindingStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Handle,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
+ )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+ None
+
+--*/
+// TODO: This - add argument and description to function comment
+// TODO: Handle - add argument and description to function comment
+// TODO: NumberOfChildren - add argument and description to function comment
+// TODO: ChildHandleBuffer - add argument and description to function comment
+// TODO: EFI_NOT_STARTED - add return value to function comment
+// TODO: EFI_DEVICE_ERROR - add return value to function comment
+{
+ EFI_UGA_DRAW_PROTOCOL *UgaDraw;
+ EFI_STATUS Status;
+ UGA_PRIVATE_DATA *Private;
+
+ Status = gBS->OpenProtocol (
+ Handle,
+ &gEfiUgaDrawProtocolGuid,
+ &UgaDraw,
+ This->DriverBindingHandle,
+ Handle,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (EFI_ERROR (Status)) {
+ //
+ // If the UGA interface does not exist the driver is not started
+ //
+ return EFI_NOT_STARTED;
+ }
+
+ //
+ // Get our private context information
+ //
+ Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (UgaDraw);
+
+ //
+ // Remove the SGO interface from the system
+ //
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ Private->Handle,
+ &gEfiUgaDrawProtocolGuid,
+ &Private->UgaDraw,
+ &gEfiSimpleTextInProtocolGuid,
+ &Private->SimpleTextIn,
+ NULL
+ );
+ if (!EFI_ERROR (Status)) {
+ //
+ // Shutdown the hardware
+ //
+ Status = WinNtUgaDestructor (Private);
+ if (EFI_ERROR (Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ gBS->CloseProtocol (
+ Handle,
+ &gEfiWinNtIoProtocolGuid,
+ This->DriverBindingHandle,
+ Handle
+ );
+
+ //
+ // Free our instance data
+ //
+ FreeUnicodeStringTable (Private->ControllerNameTable);
+
+ gBS->FreePool (Private);
+
+ }
+
+ return Status;
+}
+
+UINTN
+Atoi (
+ CHAR16 *String
+ )
+/*++
+
+Routine Description:
+
+ Convert a unicode string to a UINTN
+
+Arguments:
+
+ String - Unicode string.
+
+Returns:
+
+ UINTN of the number represented by String.
+
+--*/
+{
+ UINTN Number;
+ CHAR16 *Str;
+
+ //
+ // skip preceeding white space
+ //
+ Str = String;
+ while ((*Str) && (*Str == ' ' || *Str == '"')) {
+ Str++;
+ }
+
+ //
+ // Convert ot a Number
+ //
+ Number = 0;
+ while (*Str != '\0') {
+ if ((*Str >= '0') && (*Str <= '9')) {
+ Number = (Number * 10) +*Str - '0';
+ } else {
+ break;
+ }
+
+ Str++;
+ }
+
+ return Number;
+}
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