Renormalized end-of-lines from master@27b044605cd5f6b33a3d231576003850b3fe305btrunk

6 files changed, 1998 insertions, 1998 deletions

diff --git a/MdeModulePkg/Universal/Console/ConPlatformDxe/ComponentName.c b/MdeModulePkg/Universal/Console/ConPlatformDxe/ComponentName.c
index bdac8335f8..12acb1d451 100644
--- a/MdeModulePkg/Universal/Console/ConPlatformDxe/ComponentName.c
+++ b/MdeModulePkg/Universal/Console/ConPlatformDxe/ComponentName.c
@@ -1,160 +1,160 @@
-/** @file

-  UEFI Component Name(2) protocol implementation for ConPlatform driver.

-

-Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>

-SPDX-License-Identifier: BSD-2-Clause-Patent

-

-**/

-

-#include "ConPlatform.h"

-

-//

-// EFI Component Name Protocol

-//

-GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gConPlatformComponentName = {

-  ConPlatformComponentNameGetDriverName,

-  ConPlatformComponentNameGetControllerName,

-  "eng"

-};

-

-//

-// EFI Component Name 2 Protocol

-//

-GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL  gConPlatformComponentName2 = {

-  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME)ConPlatformComponentNameGetDriverName,

-  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME)ConPlatformComponentNameGetControllerName,

-  "en"

-};

-

-GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE  mConPlatformDriverNameTable[] = {

-  {

-    "eng;en",

-    L"Platform Console Management Driver"

-  },

-  {

-    NULL,

-    NULL

-  }

-};

-

-/**

-  Retrieves a Unicode string that is the user readable name of the driver.

-

-  This function retrieves the user readable name of a driver in the form of a

-  Unicode string. If the driver specified by This has a user readable name in

-  the language specified by Language, then a pointer to the driver name is

-  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified

-  by This does not support the language specified by Language,

-  then EFI_UNSUPPORTED is returned.

-

-  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or

-                                EFI_COMPONENT_NAME_PROTOCOL instance.

-  @param  Language[in]          A pointer to a Null-terminated ASCII string

-                                array indicating the language. This is the

-                                language of the driver name that the caller is

-                                requesting, and it must match one of the

-                                languages specified in SupportedLanguages. The

-                                number of languages supported by a driver is up

-                                to the driver writer. Language is specified

-                                in RFC 4646 or ISO 639-2 language code format.

-  @param  DriverName[out]       A pointer to the Unicode string to return.

-                                This Unicode string is the name of the

-                                driver specified by This in the language

-                                specified by Language.

-

-  @retval EFI_SUCCESS           The Unicode string for the Driver specified by

-                                This and the language specified by Language was

-                                returned in DriverName.

-  @retval EFI_INVALID_PARAMETER Language is NULL.

-  @retval EFI_INVALID_PARAMETER DriverName is NULL.

-  @retval EFI_UNSUPPORTED       The driver specified by This does not support

-                                the language specified by Language.

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformComponentNameGetDriverName (

-  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,

-  IN  CHAR8                        *Language,

-  OUT CHAR16                       **DriverName

-  )

-{

-  return LookupUnicodeString2 (

-           Language,

-           This->SupportedLanguages,

-           mConPlatformDriverNameTable,

-           DriverName,

-           (BOOLEAN)(This == &gConPlatformComponentName)

-           );

-}

-

-/**

-  Retrieves a Unicode string that is the user readable name of the controller

-  that is being managed by a driver.

-

-  This function retrieves the user readable name of the controller specified by

-  ControllerHandle and ChildHandle in the form of a Unicode string. If the

-  driver specified by This has a user readable name in the language specified by

-  Language, then a pointer to the controller name is returned in ControllerName,

-  and EFI_SUCCESS is returned.  If the driver specified by This is not currently

-  managing the controller specified by ControllerHandle and ChildHandle,

-  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not

-  support the language specified by Language, then EFI_UNSUPPORTED is returned.

-

-  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or

-                                EFI_COMPONENT_NAME_PROTOCOL instance.

-  @param  ControllerHandle[in]  The handle of a controller that the driver

-                                specified by This is managing.  This handle

-                                specifies the controller whose name is to be

-                                returned.

-  @param  ChildHandle[in]       The handle of the child controller to retrieve

-                                the name of.  This is an optional parameter that

-                                may be NULL.  It will be NULL for device

-                                drivers.  It will also be NULL for a bus drivers

-                                that wish to retrieve the name of the bus

-                                controller.  It will not be NULL for a bus

-                                driver that wishes to retrieve the name of a

-                                child controller.

-  @param  Language[in]          A pointer to a Null-terminated ASCII string

-                                array indicating the language.  This is the

-                                language of the driver name that the caller is

-                                requesting, and it must match one of the

-                                languages specified in SupportedLanguages. The

-                                number of languages supported by a driver is up

-                                to the driver writer. Language is specified in

-                                RFC 4646 or ISO 639-2 language code format.

-  @param  ControllerName[out]   A pointer to the Unicode string to return.

-                                This Unicode string is the name of the

-                                controller specified by ControllerHandle and

-                                ChildHandle in the language specified by

-                                Language from the point of view of the driver

-                                specified by This.

-

-  @retval EFI_SUCCESS           The Unicode string for the user readable name in

-                                the language specified by Language for the

-                                driver specified by This was returned in

-                                DriverName.

-  @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.

-  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid

-                                EFI_HANDLE.

-  @retval EFI_INVALID_PARAMETER Language is NULL.

-  @retval EFI_INVALID_PARAMETER ControllerName is NULL.

-  @retval EFI_UNSUPPORTED       The driver specified by This is not currently

-                                managing the controller specified by

-                                ControllerHandle and ChildHandle.

-  @retval EFI_UNSUPPORTED       The driver specified by This does not support

-                                the language specified by Language.

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformComponentNameGetControllerName (

-  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,

-  IN  EFI_HANDLE                   ControllerHandle,

-  IN  EFI_HANDLE                   ChildHandle        OPTIONAL,

-  IN  CHAR8                        *Language,

-  OUT CHAR16                       **ControllerName

-  )

-{

-  return EFI_UNSUPPORTED;

-}

+/** @file
+  UEFI Component Name(2) protocol implementation for ConPlatform driver.
+
+Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "ConPlatform.h"
+
+//
+// EFI Component Name Protocol
+//
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gConPlatformComponentName = {
+  ConPlatformComponentNameGetDriverName,
+  ConPlatformComponentNameGetControllerName,
+  "eng"
+};
+
+//
+// EFI Component Name 2 Protocol
+//
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL  gConPlatformComponentName2 = {
+  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME)ConPlatformComponentNameGetDriverName,
+  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME)ConPlatformComponentNameGetControllerName,
+  "en"
+};
+
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE  mConPlatformDriverNameTable[] = {
+  {
+    "eng;en",
+    L"Platform Console Management Driver"
+  },
+  {
+    NULL,
+    NULL
+  }
+};
+
+/**
+  Retrieves a Unicode string that is the user readable name of the driver.
+
+  This function retrieves the user readable name of a driver in the form of a
+  Unicode string. If the driver specified by This has a user readable name in
+  the language specified by Language, then a pointer to the driver name is
+  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
+  by This does not support the language specified by Language,
+  then EFI_UNSUPPORTED is returned.
+
+  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+                                EFI_COMPONENT_NAME_PROTOCOL instance.
+  @param  Language[in]          A pointer to a Null-terminated ASCII string
+                                array indicating the language. This is the
+                                language of the driver name that the caller is
+                                requesting, and it must match one of the
+                                languages specified in SupportedLanguages. The
+                                number of languages supported by a driver is up
+                                to the driver writer. Language is specified
+                                in RFC 4646 or ISO 639-2 language code format.
+  @param  DriverName[out]       A pointer to the Unicode string to return.
+                                This Unicode string is the name of the
+                                driver specified by This in the language
+                                specified by Language.
+
+  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
+                                This and the language specified by Language was
+                                returned in DriverName.
+  @retval EFI_INVALID_PARAMETER Language is NULL.
+  @retval EFI_INVALID_PARAMETER DriverName is NULL.
+  @retval EFI_UNSUPPORTED       The driver specified by This does not support
+                                the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  )
+{
+  return LookupUnicodeString2 (
+           Language,
+           This->SupportedLanguages,
+           mConPlatformDriverNameTable,
+           DriverName,
+           (BOOLEAN)(This == &gConPlatformComponentName)
+           );
+}
+
+/**
+  Retrieves a Unicode string that is the user readable name of the controller
+  that is being managed by a driver.
+
+  This function retrieves the user readable name of the controller specified by
+  ControllerHandle and ChildHandle in the form of a Unicode string. If the
+  driver specified by This has a user readable name in the language specified by
+  Language, then a pointer to the controller name is returned in ControllerName,
+  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
+  managing the controller specified by ControllerHandle and ChildHandle,
+  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
+  support the language specified by Language, then EFI_UNSUPPORTED is returned.
+
+  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+                                EFI_COMPONENT_NAME_PROTOCOL instance.
+  @param  ControllerHandle[in]  The handle of a controller that the driver
+                                specified by This is managing.  This handle
+                                specifies the controller whose name is to be
+                                returned.
+  @param  ChildHandle[in]       The handle of the child controller to retrieve
+                                the name of.  This is an optional parameter that
+                                may be NULL.  It will be NULL for device
+                                drivers.  It will also be NULL for a bus drivers
+                                that wish to retrieve the name of the bus
+                                controller.  It will not be NULL for a bus
+                                driver that wishes to retrieve the name of a
+                                child controller.
+  @param  Language[in]          A pointer to a Null-terminated ASCII string
+                                array indicating the language.  This is the
+                                language of the driver name that the caller is
+                                requesting, and it must match one of the
+                                languages specified in SupportedLanguages. The
+                                number of languages supported by a driver is up
+                                to the driver writer. Language is specified in
+                                RFC 4646 or ISO 639-2 language code format.
+  @param  ControllerName[out]   A pointer to the Unicode string to return.
+                                This Unicode string is the name of the
+                                controller specified by ControllerHandle and
+                                ChildHandle in the language specified by
+                                Language from the point of view of the driver
+                                specified by This.
+
+  @retval EFI_SUCCESS           The Unicode string for the user readable name in
+                                the language specified by Language for the
+                                driver specified by This was returned in
+                                DriverName.
+  @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
+  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
+                                EFI_HANDLE.
+  @retval EFI_INVALID_PARAMETER Language is NULL.
+  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
+  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
+                                managing the controller specified by
+                                ControllerHandle and ChildHandle.
+  @retval EFI_UNSUPPORTED       The driver specified by This does not support
+                                the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_HANDLE                   ChildHandle        OPTIONAL,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **ControllerName
+  )
+{
+  return EFI_UNSUPPORTED;
+}
diff --git a/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatform.c b/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatform.c
index 700ea9d5c0..c199e1b52a 100644
--- a/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatform.c
+++ b/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatform.c
@@ -1,1294 +1,1294 @@
-/** @file

-  Console Platform DXE Driver, install Console Device Guids and update Console

-  Environment Variables.

-

-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>

-SPDX-License-Identifier: BSD-2-Clause-Patent

-

-**/

-

-#include "ConPlatform.h"

-

-EFI_DRIVER_BINDING_PROTOCOL  gConPlatformTextInDriverBinding = {

-  ConPlatformTextInDriverBindingSupported,

-  ConPlatformTextInDriverBindingStart,

-  ConPlatformTextInDriverBindingStop,

-  0xa,

-  NULL,

-  NULL

-};

-

-EFI_DRIVER_BINDING_PROTOCOL  gConPlatformTextOutDriverBinding = {

-  ConPlatformTextOutDriverBindingSupported,

-  ConPlatformTextOutDriverBindingStart,

-  ConPlatformTextOutDriverBindingStop,

-  0xa,

-  NULL,

-  NULL

-};

-

-/**

-  Entrypoint of this module.

-

-  This function is the entrypoint of this module. It installs Driver Binding

-  Protocols together with Component Name Protocols.

-

-  @param  ImageHandle       The firmware allocated handle for the EFI image.

-  @param  SystemTable       A pointer to the EFI System Table.

-

-  @retval EFI_SUCCESS       The entry point is executed successfully.

-

-**/

-EFI_STATUS

-EFIAPI

-InitializeConPlatform (

-  IN EFI_HANDLE        ImageHandle,

-  IN EFI_SYSTEM_TABLE  *SystemTable

-  )

-{

-  EFI_STATUS  Status;

-

-  Status = EfiLibInstallDriverBindingComponentName2 (

-             ImageHandle,

-             SystemTable,

-             &gConPlatformTextInDriverBinding,

-             ImageHandle,

-             &gConPlatformComponentName,

-             &gConPlatformComponentName2

-             );

-  ASSERT_EFI_ERROR (Status);

-

-  Status = EfiLibInstallDriverBindingComponentName2 (

-             ImageHandle,

-             SystemTable,

-             &gConPlatformTextOutDriverBinding,

-             NULL,

-             &gConPlatformComponentName,

-             &gConPlatformComponentName2

-             );

-  ASSERT_EFI_ERROR (Status);

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Test to see if EFI_SIMPLE_TEXT_INPUT_PROTOCOL is supported on ControllerHandle.

-

-  @param  This                Protocol instance pointer.

-  @param  ControllerHandle    Handle of device to test.

-  @param  RemainingDevicePath Optional parameter use to pick a specific child

-                              device to start.

-

-  @retval EFI_SUCCESS         This driver supports this device.

-  @retval other               This driver does not support this device.

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformTextInDriverBindingSupported (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   ControllerHandle,

-  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath  OPTIONAL

-  )

-{

-  return ConPlatformDriverBindingSupported (

-           This,

-           ControllerHandle,

-           &gEfiSimpleTextInProtocolGuid

-           );

-}

-

-/**

-  Test to see if EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL is supported on ControllerHandle.

-

-  @param  This                Protocol instance pointer.

-  @param  ControllerHandle    Handle of device to test.

-  @param  RemainingDevicePath Optional parameter use to pick a specific child

-                              device to start.

-

-  @retval EFI_SUCCESS         This driver supports this device.

-  @retval other               This driver does not support this device.

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformTextOutDriverBindingSupported (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   ControllerHandle,

-  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath  OPTIONAL

-  )

-{

-  return ConPlatformDriverBindingSupported (

-           This,

-           ControllerHandle,

-           &gEfiSimpleTextOutProtocolGuid

-           );

-}

-

-/**

-  Test to see if the specified protocol is supported on ControllerHandle.

-

-  @param  This                Protocol instance pointer.

-  @param  ControllerHandle    Handle of device to test.

-  @param  ProtocolGuid        The specfic protocol.

-

-  @retval EFI_SUCCESS         This driver supports this device.

-  @retval other               This driver does not support this device.

-

-**/

-EFI_STATUS

-ConPlatformDriverBindingSupported (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   ControllerHandle,

-  IN  EFI_GUID                     *ProtocolGuid

-  )

-{

-  EFI_STATUS  Status;

-  VOID        *Interface;

-

-  //

-  // Test to see if this is a physical device by checking if

-  // it has a Device Path Protocol.

-  //

-  Status = gBS->OpenProtocol (

-                  ControllerHandle,

-                  &gEfiDevicePathProtocolGuid,

-                  NULL,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_TEST_PROTOCOL

-                  );

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  //

-  // Test to see if this device supports the specified Protocol.

-  //

-  Status = gBS->OpenProtocol (

-                  ControllerHandle,

-                  ProtocolGuid,

-                  (VOID **)&Interface,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_BY_DRIVER

-                  );

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  gBS->CloseProtocol (

-         ControllerHandle,

-         ProtocolGuid,

-         This->DriverBindingHandle,

-         ControllerHandle

-         );

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Start this driver on the device for console input.

-

-  Start this driver on ControllerHandle by opening Simple Text Input Protocol,

-  reading Device Path, and installing Console In Devcice GUID on ControllerHandle.

-

-  Append its device path into the console environment variables ConInDev.

-

-  @param  This                 Protocol instance pointer.

-  @param  ControllerHandle     Handle of device to bind driver to

-  @param  RemainingDevicePath  Optional parameter use to pick a specific child

-                               device to start.

-

-  @retval EFI_SUCCESS          This driver is added to ControllerHandle

-  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle

-  @retval other                This driver does not support this device.

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformTextInDriverBindingStart (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   ControllerHandle,

-  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath

-  )

-{

-  EFI_STATUS                      Status;

-  EFI_DEVICE_PATH_PROTOCOL        *DevicePath;

-  EFI_SIMPLE_TEXT_INPUT_PROTOCOL  *TextIn;

-  BOOLEAN                         IsInConInVariable;

-

-  //

-  // Get the Device Path Protocol so the environment variables can be updated

-  //

-  Status = gBS->OpenProtocol (

-                  ControllerHandle,

-                  &gEfiDevicePathProtocolGuid,

-                  (VOID **)&DevicePath,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_GET_PROTOCOL

-                  );

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  //

-  // Open the Simple Text Input Protocol BY_DRIVER

-  //

-  Status = gBS->OpenProtocol (

-                  ControllerHandle,

-                  &gEfiSimpleTextInProtocolGuid,

-                  (VOID **)&TextIn,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_BY_DRIVER

-                  );

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  //

-  // Check if the device path is in ConIn Variable

-  //

-  IsInConInVariable = FALSE;

-  Status            = ConPlatformUpdateDeviceVariable (

-                        L"ConIn",

-                        DevicePath,

-                        Check

-                        );

-  if (!EFI_ERROR (Status)) {

-    IsInConInVariable = TRUE;

-  }

-

-  //

-  // Append the device path to the ConInDev environment variable

-  //

-  ConPlatformUpdateDeviceVariable (

-    L"ConInDev",

-    DevicePath,

-    Append

-    );

-

-  //

-  // If the device path is an instance in the ConIn environment variable,

-  // then install EfiConsoleInDeviceGuid onto ControllerHandle

-  //

-  if (IsInConInVariable) {

-    gBS->InstallMultipleProtocolInterfaces (

-           &ControllerHandle,

-           &gEfiConsoleInDeviceGuid,

-           NULL,

-           NULL

-           );

-  } else {

-    gBS->CloseProtocol (

-           ControllerHandle,

-           &gEfiSimpleTextInProtocolGuid,

-           This->DriverBindingHandle,

-           ControllerHandle

-           );

-  }

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Start this driver on the device for console output and standard error output.

-

-  Start this driver on ControllerHandle by opening Simple Text Output Protocol,

-  reading Device Path, and installing Console Out Devcic GUID, Standard Error

-  Device GUID on ControllerHandle.

-

-  Append its device path into the console environment variables ConOutDev, ErrOutDev.

-

-  @param  This                 Protocol instance pointer.

-  @param  ControllerHandle     Handle of device to bind driver to

-  @param  RemainingDevicePath  Optional parameter use to pick a specific child

-                               device to start.

-

-  @retval EFI_SUCCESS          This driver is added to ControllerHandle

-  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle

-  @retval other                This driver does not support this device

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformTextOutDriverBindingStart (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   ControllerHandle,

-  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath

-  )

-{

-  EFI_STATUS                       Status;

-  EFI_DEVICE_PATH_PROTOCOL         *DevicePath;

-  EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL  *TextOut;

-  BOOLEAN                          NeedClose;

-  BOOLEAN                          IsInConOutVariable;

-  BOOLEAN                          IsInErrOutVariable;

-

-  NeedClose = TRUE;

-

-  //

-  // Get the Device Path Protocol so the environment variables can be updated

-  //

-  Status = gBS->OpenProtocol (

-                  ControllerHandle,

-                  &gEfiDevicePathProtocolGuid,

-                  (VOID **)&DevicePath,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_GET_PROTOCOL

-                  );

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  //

-  // Open the Simple Text Output Protocol BY_DRIVER

-  //

-  Status = gBS->OpenProtocol (

-                  ControllerHandle,

-                  &gEfiSimpleTextOutProtocolGuid,

-                  (VOID **)&TextOut,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_BY_DRIVER

-                  );

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  //

-  // Check if the device path is in ConOut & ErrOut Variable

-  //

-  IsInConOutVariable = FALSE;

-  Status             = ConPlatformUpdateDeviceVariable (

-                         L"ConOut",

-                         DevicePath,

-                         Check

-                         );

-  if (!EFI_ERROR (Status)) {

-    IsInConOutVariable = TRUE;

-  }

-

-  IsInErrOutVariable = FALSE;

-  Status             = ConPlatformUpdateDeviceVariable (

-                         L"ErrOut",

-                         DevicePath,

-                         Check

-                         );

-  if (!EFI_ERROR (Status)) {

-    IsInErrOutVariable = TRUE;

-  }

-

-  //

-  // Append the device path to the ConOutDev and ErrOutDev environment variable.

-  // For GOP device path, append the sibling device path as well.

-  //

-  if (!ConPlatformUpdateGopCandidate (DevicePath)) {

-    ConPlatformUpdateDeviceVariable (

-      L"ConOutDev",

-      DevicePath,

-      Append

-      );

-    //

-    // Then append the device path to the ErrOutDev environment variable

-    //

-    ConPlatformUpdateDeviceVariable (

-      L"ErrOutDev",

-      DevicePath,

-      Append

-      );

-  }

-

-  //

-  // If the device path is an instance in the ConOut environment variable,

-  // then install EfiConsoleOutDeviceGuid onto ControllerHandle

-  //

-  if (IsInConOutVariable) {

-    NeedClose = FALSE;

-    Status    = gBS->InstallMultipleProtocolInterfaces (

-                       &ControllerHandle,

-                       &gEfiConsoleOutDeviceGuid,

-                       NULL,

-                       NULL

-                       );

-  }

-

-  //

-  // If the device path is an instance in the ErrOut environment variable,

-  // then install EfiStandardErrorDeviceGuid onto ControllerHandle

-  //

-  if (IsInErrOutVariable) {

-    NeedClose = FALSE;

-    gBS->InstallMultipleProtocolInterfaces (

-           &ControllerHandle,

-           &gEfiStandardErrorDeviceGuid,

-           NULL,

-           NULL

-           );

-  }

-

-  if (NeedClose) {

-    gBS->CloseProtocol (

-           ControllerHandle,

-           &gEfiSimpleTextOutProtocolGuid,

-           This->DriverBindingHandle,

-           ControllerHandle

-           );

-  }

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Stop this driver on ControllerHandle by removing Console In Devcice GUID

-  and closing the Simple Text Input protocol on ControllerHandle.

-

-  @param  This              Protocol instance pointer.

-  @param  ControllerHandle  Handle of device to stop driver on

-  @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of

-                            children is zero stop the entire bus driver.

-  @param  ChildHandleBuffer List of Child Handles to Stop.

-

-  @retval EFI_SUCCESS       This driver is removed ControllerHandle

-  @retval other             This driver was not removed from this device

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformTextInDriverBindingStop (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   ControllerHandle,

-  IN  UINTN                        NumberOfChildren,

-  IN  EFI_HANDLE                   *ChildHandleBuffer

-  )

-{

-  EFI_STATUS                Status;

-  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;

-

-  //

-  // Get the Device Path Protocol firstly

-  //

-  Status = gBS->OpenProtocol (

-                  ControllerHandle,

-                  &gEfiDevicePathProtocolGuid,

-                  (VOID **)&DevicePath,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_GET_PROTOCOL

-                  );

-  //

-  // If there is device path on ControllerHandle

-  //

-  if (!EFI_ERROR (Status)) {

-    //

-    // Remove DevicePath from ConInDev if exists.

-    //

-    ConPlatformUpdateDeviceVariable (

-      L"ConInDev",

-      DevicePath,

-      Delete

-      );

-  }

-

-  //

-  // Uninstall the Console Device GUIDs from Controller Handle

-  //

-  ConPlatformUnInstallProtocol (

-    This,

-    ControllerHandle,

-    &gEfiConsoleInDeviceGuid

-    );

-

-  //

-  // Close the Simple Text Input Protocol

-  //

-  gBS->CloseProtocol (

-         ControllerHandle,

-         &gEfiSimpleTextInProtocolGuid,

-         This->DriverBindingHandle,

-         ControllerHandle

-         );

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Stop this driver on ControllerHandle by removing Console Out Devcice GUID

-  and closing the Simple Text Output protocol on ControllerHandle.

-

-  @param  This              Protocol instance pointer.

-  @param  ControllerHandle  Handle of device to stop driver on

-  @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of

-                            children is zero stop the entire bus driver.

-  @param  ChildHandleBuffer List of Child Handles to Stop.

-

-  @retval EFI_SUCCESS       This driver is removed ControllerHandle

-  @retval other             This driver was not removed from this device

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformTextOutDriverBindingStop (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   ControllerHandle,

-  IN  UINTN                        NumberOfChildren,

-  IN  EFI_HANDLE                   *ChildHandleBuffer

-  )

-{

-  EFI_STATUS                Status;

-  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;

-

-  //

-  // Get the Device Path Protocol firstly

-  //

-  Status = gBS->OpenProtocol (

-                  ControllerHandle,

-                  &gEfiDevicePathProtocolGuid,

-                  (VOID **)&DevicePath,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_GET_PROTOCOL

-                  );

-  if (!EFI_ERROR (Status)) {

-    //

-    // Remove DevicePath from ConOutDev and ErrOutDev if exists.

-    //

-    ConPlatformUpdateDeviceVariable (

-      L"ConOutDev",

-      DevicePath,

-      Delete

-      );

-    ConPlatformUpdateDeviceVariable (

-      L"ErrOutDev",

-      DevicePath,

-      Delete

-      );

-  }

-

-  //

-  // Uninstall the Console Device GUIDs from Controller Handle

-  //

-  ConPlatformUnInstallProtocol (

-    This,

-    ControllerHandle,

-    &gEfiConsoleOutDeviceGuid

-    );

-

-  ConPlatformUnInstallProtocol (

-    This,

-    ControllerHandle,

-    &gEfiStandardErrorDeviceGuid

-    );

-

-  //

-  // Close the Simple Text Output Protocol

-  //

-  gBS->CloseProtocol (

-         ControllerHandle,

-         &gEfiSimpleTextOutProtocolGuid,

-         This->DriverBindingHandle,

-         ControllerHandle

-         );

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Uninstall the specified protocol.

-

-  @param This            Protocol instance pointer.

-  @param Handle          Handle of device to uninstall protocol on.

-  @param ProtocolGuid    The specified protocol need to be uninstalled.

-

-**/

-VOID

-ConPlatformUnInstallProtocol (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   Handle,

-  IN  EFI_GUID                     *ProtocolGuid

-  )

-{

-  EFI_STATUS  Status;

-

-  Status = gBS->OpenProtocol (

-                  Handle,

-                  ProtocolGuid,

-                  NULL,

-                  This->DriverBindingHandle,

-                  Handle,

-                  EFI_OPEN_PROTOCOL_TEST_PROTOCOL

-                  );

-

-  if (!EFI_ERROR (Status)) {

-    gBS->UninstallMultipleProtocolInterfaces (

-           Handle,

-           ProtocolGuid,

-           NULL,

-           NULL

-           );

-  }

-

-  return;

-}

-

-/**

-  Get the necessary size of buffer and read the variable.

-

-  First get the necessary size of buffer. Then read the

-  EFI variable (Name) and return a dynamically allocated

-  buffer. On failure return NULL.

-

-  @param  Name             String part of EFI variable name

-

-  @return Dynamically allocated memory that contains a copy of the EFI variable.

-          Caller is repsoncible freeing the buffer. Return NULL means Variable

-          was not read.

-

-**/

-VOID *

-ConPlatformGetVariable (

-  IN  CHAR16  *Name

-  )

-{

-  EFI_STATUS  Status;

-  VOID        *Buffer;

-  UINTN       BufferSize;

-

-  BufferSize = 0;

-  Buffer     = NULL;

-

-  //

-  // Test to see if the variable exists.  If it doesn't, return NULL.

-  //

-  Status = gRT->GetVariable (

-                  Name,

-                  &gEfiGlobalVariableGuid,

-                  NULL,

-                  &BufferSize,

-                  Buffer

-                  );

-

-  if (Status == EFI_BUFFER_TOO_SMALL) {

-    //

-    // Allocate the buffer to return

-    //

-    Buffer = AllocatePool (BufferSize);

-    if (Buffer == NULL) {

-      return NULL;

-    }

-

-    //

-    // Read variable into the allocated buffer.

-    //

-    Status = gRT->GetVariable (

-                    Name,

-                    &gEfiGlobalVariableGuid,

-                    NULL,

-                    &BufferSize,

-                    Buffer

-                    );

-    if (EFI_ERROR (Status)) {

-      FreePool (Buffer);

-      //

-      // To make sure Buffer is NULL if any error occurs.

-      //

-      Buffer = NULL;

-    }

-  }

-

-  return Buffer;

-}

-

-/**

-  Function returns TRUE when the two input device paths point to the two

-  GOP child handles that have the same parent.

-

-  @param Left    A pointer to a device path data structure.

-  @param Right   A pointer to a device path data structure.

-

-  @retval TRUE  Left and Right share the same parent.

-  @retval FALSE Left and Right don't share the same parent or either of them is not

-                a GOP device path.

-**/

-BOOLEAN

-IsGopSibling (

-  IN EFI_DEVICE_PATH_PROTOCOL  *Left,

-  IN EFI_DEVICE_PATH_PROTOCOL  *Right

-  )

-{

-  EFI_DEVICE_PATH_PROTOCOL  *NodeLeft;

-  EFI_DEVICE_PATH_PROTOCOL  *NodeRight;

-

-  for (NodeLeft = Left; !IsDevicePathEndType (NodeLeft); NodeLeft = NextDevicePathNode (NodeLeft)) {

-    if (((DevicePathType (NodeLeft) == ACPI_DEVICE_PATH) && (DevicePathSubType (NodeLeft) == ACPI_ADR_DP)) ||

-        ((DevicePathType (NodeLeft) == HARDWARE_DEVICE_PATH) && (DevicePathSubType (NodeLeft) == HW_CONTROLLER_DP) &&

-         (DevicePathType (NextDevicePathNode (NodeLeft)) == ACPI_DEVICE_PATH) && (DevicePathSubType (NextDevicePathNode (NodeLeft)) == ACPI_ADR_DP)))

-    {

-      break;

-    }

-  }

-

-  if (IsDevicePathEndType (NodeLeft)) {

-    return FALSE;

-  }

-

-  for (NodeRight = Right; !IsDevicePathEndType (NodeRight); NodeRight = NextDevicePathNode (NodeRight)) {

-    if (((DevicePathType (NodeRight) == ACPI_DEVICE_PATH) && (DevicePathSubType (NodeRight) == ACPI_ADR_DP)) ||

-        ((DevicePathType (NodeRight) == HARDWARE_DEVICE_PATH) && (DevicePathSubType (NodeRight) == HW_CONTROLLER_DP) &&

-         (DevicePathType (NextDevicePathNode (NodeRight)) == ACPI_DEVICE_PATH) && (DevicePathSubType (NextDevicePathNode (NodeRight)) == ACPI_ADR_DP)))

-    {

-      break;

-    }

-  }

-

-  if (IsDevicePathEndType (NodeRight)) {

-    return FALSE;

-  }

-

-  if (((UINTN)NodeLeft - (UINTN)Left) != ((UINTN)NodeRight - (UINTN)Right)) {

-    return FALSE;

-  }

-

-  return (BOOLEAN)(CompareMem (Left, Right, (UINTN)NodeLeft - (UINTN)Left) == 0);

-}

-

-/**

-  Check whether a USB device match the specified USB Class device path. This

-  function follows "Load Option Processing" behavior in UEFI specification.

-

-  @param UsbIo       USB I/O protocol associated with the USB device.

-  @param UsbClass    The USB Class device path to match.

-

-  @retval TRUE       The USB device match the USB Class device path.

-  @retval FALSE      The USB device does not match the USB Class device path.

-

-**/

-BOOLEAN

-MatchUsbClass (

-  IN EFI_USB_IO_PROTOCOL    *UsbIo,

-  IN USB_CLASS_DEVICE_PATH  *UsbClass

-  )

-{

-  EFI_STATUS                    Status;

-  EFI_USB_DEVICE_DESCRIPTOR     DevDesc;

-  EFI_USB_INTERFACE_DESCRIPTOR  IfDesc;

-  UINT8                         DeviceClass;

-  UINT8                         DeviceSubClass;

-  UINT8                         DeviceProtocol;

-

-  if ((DevicePathType (UsbClass) != MESSAGING_DEVICE_PATH) ||

-      (DevicePathSubType (UsbClass) != MSG_USB_CLASS_DP))

-  {

-    return FALSE;

-  }

-

-  //

-  // Check Vendor Id and Product Id.

-  //

-  Status = UsbIo->UsbGetDeviceDescriptor (UsbIo, &DevDesc);

-  if (EFI_ERROR (Status)) {

-    return FALSE;

-  }

-

-  if ((UsbClass->VendorId != 0xffff) &&

-      (UsbClass->VendorId != DevDesc.IdVendor))

-  {

-    return FALSE;

-  }

-

-  if ((UsbClass->ProductId != 0xffff) &&

-      (UsbClass->ProductId != DevDesc.IdProduct))

-  {

-    return FALSE;

-  }

-

-  DeviceClass    = DevDesc.DeviceClass;

-  DeviceSubClass = DevDesc.DeviceSubClass;

-  DeviceProtocol = DevDesc.DeviceProtocol;

-  if (DeviceClass == 0) {

-    //

-    // If Class in Device Descriptor is set to 0, use the Class, SubClass and

-    // Protocol in Interface Descriptor instead.

-    //

-    Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &IfDesc);

-    if (EFI_ERROR (Status)) {

-      return FALSE;

-    }

-

-    DeviceClass    = IfDesc.InterfaceClass;

-    DeviceSubClass = IfDesc.InterfaceSubClass;

-    DeviceProtocol = IfDesc.InterfaceProtocol;

-  }

-

-  //

-  // Check Class, SubClass and Protocol.

-  //

-  if ((UsbClass->DeviceClass != 0xff) &&

-      (UsbClass->DeviceClass != DeviceClass))

-  {

-    return FALSE;

-  }

-

-  if ((UsbClass->DeviceSubClass != 0xff) &&

-      (UsbClass->DeviceSubClass != DeviceSubClass))

-  {

-    return FALSE;

-  }

-

-  if ((UsbClass->DeviceProtocol != 0xff) &&

-      (UsbClass->DeviceProtocol != DeviceProtocol))

-  {

-    return FALSE;

-  }

-

-  return TRUE;

-}

-

-/**

-  Check whether a USB device match the specified USB WWID device path. This

-  function follows "Load Option Processing" behavior in UEFI specification.

-

-  @param UsbIo       USB I/O protocol associated with the USB device.

-  @param UsbWwid     The USB WWID device path to match.

-

-  @retval TRUE       The USB device match the USB WWID device path.

-  @retval FALSE      The USB device does not match the USB WWID device path.

-

-**/

-BOOLEAN

-MatchUsbWwid (

-  IN EFI_USB_IO_PROTOCOL   *UsbIo,

-  IN USB_WWID_DEVICE_PATH  *UsbWwid

-  )

-{

-  EFI_STATUS                    Status;

-  EFI_USB_DEVICE_DESCRIPTOR     DevDesc;

-  EFI_USB_INTERFACE_DESCRIPTOR  IfDesc;

-  UINT16                        *LangIdTable;

-  UINT16                        TableSize;

-  UINT16                        Index;

-  CHAR16                        *CompareStr;

-  UINTN                         CompareLen;

-  CHAR16                        *SerialNumberStr;

-  UINTN                         Length;

-

-  if ((DevicePathType (UsbWwid) != MESSAGING_DEVICE_PATH) ||

-      (DevicePathSubType (UsbWwid) != MSG_USB_WWID_DP))

-  {

-    return FALSE;

-  }

-

-  //

-  // Check Vendor Id and Product Id.

-  //

-  Status = UsbIo->UsbGetDeviceDescriptor (UsbIo, &DevDesc);

-  if (EFI_ERROR (Status)) {

-    return FALSE;

-  }

-

-  if ((DevDesc.IdVendor != UsbWwid->VendorId) ||

-      (DevDesc.IdProduct != UsbWwid->ProductId))

-  {

-    return FALSE;

-  }

-

-  //

-  // Check Interface Number.

-  //

-  Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &IfDesc);

-  if (EFI_ERROR (Status)) {

-    return FALSE;

-  }

-

-  if (IfDesc.InterfaceNumber != UsbWwid->InterfaceNumber) {

-    return FALSE;

-  }

-

-  //

-  // Check Serial Number.

-  //

-  if (DevDesc.StrSerialNumber == 0) {

-    return FALSE;

-  }

-

-  //

-  // Get all supported languages.

-  //

-  TableSize   = 0;

-  LangIdTable = NULL;

-  Status      = UsbIo->UsbGetSupportedLanguages (UsbIo, &LangIdTable, &TableSize);

-  if (EFI_ERROR (Status) || (TableSize == 0) || (LangIdTable == NULL)) {

-    return FALSE;

-  }

-

-  //

-  // Serial number in USB WWID device path is the last 64-or-less UTF-16 characters.

-  //

-  CompareStr = (CHAR16 *)(UINTN)(UsbWwid + 1);

-  CompareLen = (DevicePathNodeLength (UsbWwid) - sizeof (USB_WWID_DEVICE_PATH)) / sizeof (CHAR16);

-  if (CompareStr[CompareLen - 1] == L'\0') {

-    CompareLen--;

-  }

-

-  //

-  // Compare serial number in each supported language.

-  //

-  for (Index = 0; Index < TableSize / sizeof (UINT16); Index++) {

-    SerialNumberStr = NULL;

-    Status          = UsbIo->UsbGetStringDescriptor (

-                               UsbIo,

-                               LangIdTable[Index],

-                               DevDesc.StrSerialNumber,

-                               &SerialNumberStr

-                               );

-    if (EFI_ERROR (Status) || (SerialNumberStr == NULL)) {

-      continue;

-    }

-

-    Length = StrLen (SerialNumberStr);

-    if ((Length >= CompareLen) &&

-        (CompareMem (SerialNumberStr + Length - CompareLen, CompareStr, CompareLen * sizeof (CHAR16)) == 0))

-    {

-      FreePool (SerialNumberStr);

-      return TRUE;

-    }

-

-    FreePool (SerialNumberStr);

-  }

-

-  return FALSE;

-}

-

-/**

-  Compare whether a full console device path matches a USB shortform device path.

-

-  @param[in] FullPath      Full console device path.

-  @param[in] ShortformPath Short-form device path. Short-form device node may in the beginning or in the middle.

-

-  @retval TRUE  The full console device path matches the short-form device path.

-  @retval FALSE The full console device path doesn't match the short-form device path.

-**/

-BOOLEAN

-MatchUsbShortformDevicePath (

-  IN EFI_DEVICE_PATH_PROTOCOL  *FullPath,

-  IN EFI_DEVICE_PATH_PROTOCOL  *ShortformPath

-  )

-{

-  EFI_STATUS                Status;

-  EFI_DEVICE_PATH_PROTOCOL  *ShortformNode;

-  UINTN                     ParentDevicePathSize;

-  EFI_DEVICE_PATH_PROTOCOL  *RemainingDevicePath;

-  EFI_USB_IO_PROTOCOL       *UsbIo;

-  EFI_HANDLE                Handle;

-

-  for ( ShortformNode = ShortformPath

-        ; !IsDevicePathEnd (ShortformNode)

-        ; ShortformNode = NextDevicePathNode (ShortformNode)

-        )

-  {

-    if ((DevicePathType (ShortformNode) == MESSAGING_DEVICE_PATH) &&

-        ((DevicePathSubType (ShortformNode) == MSG_USB_CLASS_DP) ||

-         (DevicePathSubType (ShortformNode) == MSG_USB_WWID_DP))

-        )

-    {

-      break;

-    }

-  }

-

-  //

-  // Skip further compare when it's not a shortform device path.

-  //

-  if (IsDevicePathEnd (ShortformNode)) {

-    return FALSE;

-  }

-

-  //

-  // Compare the parent device path when the ShortformPath doesn't start with short-form node.

-  //

-  ParentDevicePathSize = (UINTN)ShortformNode - (UINTN)ShortformPath;

-  RemainingDevicePath  = FullPath;

-  Status               = gBS->LocateDevicePath (&gEfiUsbIoProtocolGuid, &RemainingDevicePath, &Handle);

-  if (EFI_ERROR (Status)) {

-    return FALSE;

-  }

-

-  if (ParentDevicePathSize != 0) {

-    if ((ParentDevicePathSize > (UINTN)RemainingDevicePath - (UINTN)FullPath) ||

-        (CompareMem (FullPath, ShortformPath, ParentDevicePathSize) != 0))

-    {

-      return FALSE;

-    }

-  }

-

-  //

-  // Compar the USB layer.

-  //

-  Status = gBS->HandleProtocol (

-                  Handle,

-                  &gEfiUsbIoProtocolGuid,

-                  (VOID **)&UsbIo

-                  );

-  ASSERT_EFI_ERROR (Status);

-

-  return MatchUsbClass (UsbIo, (USB_CLASS_DEVICE_PATH *)ShortformNode) ||

-         MatchUsbWwid (UsbIo, (USB_WWID_DEVICE_PATH *)ShortformNode);

-}

-

-/**

-  Function compares a device path data structure to that of all the nodes of a

-  second device path instance.

-

-  @param Multi           A pointer to a multi-instance device path data structure.

-  @param Single          A pointer to a single-instance device path data structure.

-  @param NewDevicePath   If Delete is TRUE, this parameter must not be null, and it

-                         points to the remaining device path data structure.

-                         (remaining device path = Multi - Single.)

-  @param Delete          If TRUE, means removing Single from Multi.

-                         If FALSE, the routine just check whether Single matches

-                         with any instance in Multi.

-

-  @retval EFI_SUCCESS           If the Single is contained within Multi.

-  @retval EFI_NOT_FOUND         If the Single is not contained within Multi.

-  @retval EFI_INVALID_PARAMETER Multi is NULL.

-  @retval EFI_INVALID_PARAMETER Single is NULL.

-  @retval EFI_INVALID_PARAMETER NewDevicePath is NULL when Delete is TRUE.

-

-**/

-EFI_STATUS

-ConPlatformMatchDevicePaths (

-  IN  EFI_DEVICE_PATH_PROTOCOL  *Multi,

-  IN  EFI_DEVICE_PATH_PROTOCOL  *Single,

-  OUT EFI_DEVICE_PATH_PROTOCOL  **NewDevicePath OPTIONAL,

-  IN  BOOLEAN                   Delete

-  )

-{

-  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;

-  EFI_DEVICE_PATH_PROTOCOL  *TempDevicePath1;

-  EFI_DEVICE_PATH_PROTOCOL  *TempDevicePath2;

-  EFI_DEVICE_PATH_PROTOCOL  *DevicePathInst;

-  UINTN                     Size;

-

-  //

-  // The passed in DevicePath should not be NULL

-  //

-  if ((Multi == NULL) || (Single == NULL)) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  //

-  // If performing Delete operation, the NewDevicePath must not be NULL.

-  //

-  if (Delete) {

-    if (NewDevicePath == NULL) {

-      return EFI_INVALID_PARAMETER;

-    }

-  }

-

-  TempDevicePath1 = NULL;

-

-  DevicePath     = Multi;

-  DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);

-

-  //

-  // Search for the match of 'Single' in 'Multi'

-  //

-  while (DevicePathInst != NULL) {

-    if ((CompareMem (Single, DevicePathInst, Size) == 0) ||

-        IsGopSibling (Single, DevicePathInst) || MatchUsbShortformDevicePath (Single, DevicePathInst))

-    {

-      if (!Delete) {

-        //

-        // If Delete is FALSE, return EFI_SUCCESS if Single is found in Multi.

-        //

-        FreePool (DevicePathInst);

-        return EFI_SUCCESS;

-      }

-    } else {

-      if (Delete) {

-        //

-        // If the node of Multi does not match Single, then added it back to the result.

-        // That is, the node matching Single will be dropped and deleted from result.

-        //

-        TempDevicePath2 = AppendDevicePathInstance (

-                            TempDevicePath1,

-                            DevicePathInst

-                            );

-        if (TempDevicePath1 != NULL) {

-          FreePool (TempDevicePath1);

-        }

-

-        TempDevicePath1 = TempDevicePath2;

-      }

-    }

-

-    FreePool (DevicePathInst);

-    DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);

-  }

-

-  if (Delete) {

-    //

-    // Return the new device path data structure with specified node deleted.

-    //

-    *NewDevicePath = TempDevicePath1;

-    return EFI_SUCCESS;

-  }

-

-  return EFI_NOT_FOUND;

-}

-

-/**

-  Update console environment variables.

-

-  @param  VariableName    Console environment variables, ConOutDev, ConInDev

-                          ErrOutDev, ConIn ,ConOut or ErrOut.

-  @param  DevicePath      Console devcie's device path.

-  @param  Operation       Variable operations, including APPEND, CHECK and DELETE.

-

-  @retval EFI_SUCCESS           Variable operates successfully.

-  @retval EFI_OUT_OF_RESOURCES  If variable cannot be appended.

-  @retval other                 Variable updating failed.

-

-**/

-EFI_STATUS

-ConPlatformUpdateDeviceVariable (

-  IN  CHAR16                     *VariableName,

-  IN  EFI_DEVICE_PATH_PROTOCOL   *DevicePath,

-  IN  CONPLATFORM_VAR_OPERATION  Operation

-  )

-{

-  EFI_STATUS                Status;

-  EFI_DEVICE_PATH_PROTOCOL  *VariableDevicePath;

-  EFI_DEVICE_PATH_PROTOCOL  *NewVariableDevicePath;

-

-  VariableDevicePath    = NULL;

-  NewVariableDevicePath = NULL;

-

-  //

-  // Get Variable according to variable name.

-  // The memory for Variable is allocated within ConPlatformGetVarible(),

-  // it is the caller's responsibility to free the memory before return.

-  //

-  VariableDevicePath = ConPlatformGetVariable (VariableName);

-

-  if (Operation != Delete) {

-    //

-    // Match specified DevicePath in Console Variable.

-    //

-    Status = ConPlatformMatchDevicePaths (

-               VariableDevicePath,

-               DevicePath,

-               NULL,

-               FALSE

-               );

-

-    if ((Operation == Check) || (!EFI_ERROR (Status))) {

-      //

-      // Branch here includes 2 cases:

-      // 1. Operation is CHECK, simply return Status.

-      // 2. Operation is APPEND, and device path already exists in variable, also return.

-      //

-      if (VariableDevicePath != NULL) {

-        FreePool (VariableDevicePath);

-      }

-

-      return Status;

-    }

-

-    //

-    // We reach here to append a device path that does not exist in variable.

-    //

-    Status                = EFI_SUCCESS;

-    NewVariableDevicePath = AppendDevicePathInstance (

-                              VariableDevicePath,

-                              DevicePath

-                              );

-    if (NewVariableDevicePath == NULL) {

-      Status = EFI_OUT_OF_RESOURCES;

-    }

-  } else {

-    //

-    // We reach here to remove DevicePath from the environment variable that

-    // is a multi-instance device path.

-    //

-    Status = ConPlatformMatchDevicePaths (

-               VariableDevicePath,

-               DevicePath,

-               &NewVariableDevicePath,

-               TRUE

-               );

-  }

-

-  if (VariableDevicePath != NULL) {

-    FreePool (VariableDevicePath);

-  }

-

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  if (NewVariableDevicePath != NULL) {

-    //

-    // Update Console Environment Variable.

-    //

-    Status = gRT->SetVariable (

-                    VariableName,

-                    &gEfiGlobalVariableGuid,

-                    EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,

-                    GetDevicePathSize (NewVariableDevicePath),

-                    NewVariableDevicePath

-                    );

-

-    FreePool (NewVariableDevicePath);

-  }

-

-  return Status;

-}

-

-/**

-  Update ConOutDev and ErrOutDev variables to add the device path of

-  GOP controller itself and the sibling controllers.

-

-  @param  DevicePath            Pointer to device's device path.

-

-  @retval TRUE                  The devcie is a GOP device.

-  @retval FALSE                 The devcie is not a GOP device.

-

-**/

-BOOLEAN

-ConPlatformUpdateGopCandidate (

-  IN  EFI_DEVICE_PATH_PROTOCOL  *DevicePath

-  )

-{

-  EFI_STATUS                Status;

-  EFI_HANDLE                PciHandle;

-  EFI_HANDLE                GopHandle;

-  EFI_DEVICE_PATH_PROTOCOL  *TempDevicePath;

-

-  //

-  // Check whether it's a GOP device.

-  //

-  TempDevicePath = DevicePath;

-  Status         = gBS->LocateDevicePath (&gEfiGraphicsOutputProtocolGuid, &TempDevicePath, &GopHandle);

-  if (EFI_ERROR (Status)) {

-    return FALSE;

-  }

-

-  //

-  // Get the parent PciIo handle in order to find all the children

-  //

-  Status = gBS->LocateDevicePath (&gEfiPciIoProtocolGuid, &DevicePath, &PciHandle);

-  if (EFI_ERROR (Status)) {

-    return FALSE;

-  }

-

-  TempDevicePath = EfiBootManagerGetGopDevicePath (PciHandle);

-  if (TempDevicePath != NULL) {

-    ConPlatformUpdateDeviceVariable (L"ConOutDev", TempDevicePath, Append);

-    ConPlatformUpdateDeviceVariable (L"ErrOutDev", TempDevicePath, Append);

-  }

-

-  return TRUE;

-}

+/** @file
+  Console Platform DXE Driver, install Console Device Guids and update Console
+  Environment Variables.
+
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "ConPlatform.h"
+
+EFI_DRIVER_BINDING_PROTOCOL  gConPlatformTextInDriverBinding = {
+  ConPlatformTextInDriverBindingSupported,
+  ConPlatformTextInDriverBindingStart,
+  ConPlatformTextInDriverBindingStop,
+  0xa,
+  NULL,
+  NULL
+};
+
+EFI_DRIVER_BINDING_PROTOCOL  gConPlatformTextOutDriverBinding = {
+  ConPlatformTextOutDriverBindingSupported,
+  ConPlatformTextOutDriverBindingStart,
+  ConPlatformTextOutDriverBindingStop,
+  0xa,
+  NULL,
+  NULL
+};
+
+/**
+  Entrypoint of this module.
+
+  This function is the entrypoint of this module. It installs Driver Binding
+  Protocols together with Component Name Protocols.
+
+  @param  ImageHandle       The firmware allocated handle for the EFI image.
+  @param  SystemTable       A pointer to the EFI System Table.
+
+  @retval EFI_SUCCESS       The entry point is executed successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+InitializeConPlatform (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  EFI_STATUS  Status;
+
+  Status = EfiLibInstallDriverBindingComponentName2 (
+             ImageHandle,
+             SystemTable,
+             &gConPlatformTextInDriverBinding,
+             ImageHandle,
+             &gConPlatformComponentName,
+             &gConPlatformComponentName2
+             );
+  ASSERT_EFI_ERROR (Status);
+
+  Status = EfiLibInstallDriverBindingComponentName2 (
+             ImageHandle,
+             SystemTable,
+             &gConPlatformTextOutDriverBinding,
+             NULL,
+             &gConPlatformComponentName,
+             &gConPlatformComponentName2
+             );
+  ASSERT_EFI_ERROR (Status);
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Test to see if EFI_SIMPLE_TEXT_INPUT_PROTOCOL is supported on ControllerHandle.
+
+  @param  This                Protocol instance pointer.
+  @param  ControllerHandle    Handle of device to test.
+  @param  RemainingDevicePath Optional parameter use to pick a specific child
+                              device to start.
+
+  @retval EFI_SUCCESS         This driver supports this device.
+  @retval other               This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformTextInDriverBindingSupported (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath  OPTIONAL
+  )
+{
+  return ConPlatformDriverBindingSupported (
+           This,
+           ControllerHandle,
+           &gEfiSimpleTextInProtocolGuid
+           );
+}
+
+/**
+  Test to see if EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL is supported on ControllerHandle.
+
+  @param  This                Protocol instance pointer.
+  @param  ControllerHandle    Handle of device to test.
+  @param  RemainingDevicePath Optional parameter use to pick a specific child
+                              device to start.
+
+  @retval EFI_SUCCESS         This driver supports this device.
+  @retval other               This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformTextOutDriverBindingSupported (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath  OPTIONAL
+  )
+{
+  return ConPlatformDriverBindingSupported (
+           This,
+           ControllerHandle,
+           &gEfiSimpleTextOutProtocolGuid
+           );
+}
+
+/**
+  Test to see if the specified protocol is supported on ControllerHandle.
+
+  @param  This                Protocol instance pointer.
+  @param  ControllerHandle    Handle of device to test.
+  @param  ProtocolGuid        The specfic protocol.
+
+  @retval EFI_SUCCESS         This driver supports this device.
+  @retval other               This driver does not support this device.
+
+**/
+EFI_STATUS
+ConPlatformDriverBindingSupported (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_GUID                     *ProtocolGuid
+  )
+{
+  EFI_STATUS  Status;
+  VOID        *Interface;
+
+  //
+  // Test to see if this is a physical device by checking if
+  // it has a Device Path Protocol.
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  NULL,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_TEST_PROTOCOL
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Test to see if this device supports the specified Protocol.
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  ProtocolGuid,
+                  (VOID **)&Interface,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  gBS->CloseProtocol (
+         ControllerHandle,
+         ProtocolGuid,
+         This->DriverBindingHandle,
+         ControllerHandle
+         );
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Start this driver on the device for console input.
+
+  Start this driver on ControllerHandle by opening Simple Text Input Protocol,
+  reading Device Path, and installing Console In Devcice GUID on ControllerHandle.
+
+  Append its device path into the console environment variables ConInDev.
+
+  @param  This                 Protocol instance pointer.
+  @param  ControllerHandle     Handle of device to bind driver to
+  @param  RemainingDevicePath  Optional parameter use to pick a specific child
+                               device to start.
+
+  @retval EFI_SUCCESS          This driver is added to ControllerHandle
+  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle
+  @retval other                This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformTextInDriverBindingStart (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
+  )
+{
+  EFI_STATUS                      Status;
+  EFI_DEVICE_PATH_PROTOCOL        *DevicePath;
+  EFI_SIMPLE_TEXT_INPUT_PROTOCOL  *TextIn;
+  BOOLEAN                         IsInConInVariable;
+
+  //
+  // Get the Device Path Protocol so the environment variables can be updated
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  (VOID **)&DevicePath,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Open the Simple Text Input Protocol BY_DRIVER
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiSimpleTextInProtocolGuid,
+                  (VOID **)&TextIn,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Check if the device path is in ConIn Variable
+  //
+  IsInConInVariable = FALSE;
+  Status            = ConPlatformUpdateDeviceVariable (
+                        L"ConIn",
+                        DevicePath,
+                        Check
+                        );
+  if (!EFI_ERROR (Status)) {
+    IsInConInVariable = TRUE;
+  }
+
+  //
+  // Append the device path to the ConInDev environment variable
+  //
+  ConPlatformUpdateDeviceVariable (
+    L"ConInDev",
+    DevicePath,
+    Append
+    );
+
+  //
+  // If the device path is an instance in the ConIn environment variable,
+  // then install EfiConsoleInDeviceGuid onto ControllerHandle
+  //
+  if (IsInConInVariable) {
+    gBS->InstallMultipleProtocolInterfaces (
+           &ControllerHandle,
+           &gEfiConsoleInDeviceGuid,
+           NULL,
+           NULL
+           );
+  } else {
+    gBS->CloseProtocol (
+           ControllerHandle,
+           &gEfiSimpleTextInProtocolGuid,
+           This->DriverBindingHandle,
+           ControllerHandle
+           );
+  }
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Start this driver on the device for console output and standard error output.
+
+  Start this driver on ControllerHandle by opening Simple Text Output Protocol,
+  reading Device Path, and installing Console Out Devcic GUID, Standard Error
+  Device GUID on ControllerHandle.
+
+  Append its device path into the console environment variables ConOutDev, ErrOutDev.
+
+  @param  This                 Protocol instance pointer.
+  @param  ControllerHandle     Handle of device to bind driver to
+  @param  RemainingDevicePath  Optional parameter use to pick a specific child
+                               device to start.
+
+  @retval EFI_SUCCESS          This driver is added to ControllerHandle
+  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle
+  @retval other                This driver does not support this device
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformTextOutDriverBindingStart (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
+  )
+{
+  EFI_STATUS                       Status;
+  EFI_DEVICE_PATH_PROTOCOL         *DevicePath;
+  EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL  *TextOut;
+  BOOLEAN                          NeedClose;
+  BOOLEAN                          IsInConOutVariable;
+  BOOLEAN                          IsInErrOutVariable;
+
+  NeedClose = TRUE;
+
+  //
+  // Get the Device Path Protocol so the environment variables can be updated
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  (VOID **)&DevicePath,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Open the Simple Text Output Protocol BY_DRIVER
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiSimpleTextOutProtocolGuid,
+                  (VOID **)&TextOut,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Check if the device path is in ConOut & ErrOut Variable
+  //
+  IsInConOutVariable = FALSE;
+  Status             = ConPlatformUpdateDeviceVariable (
+                         L"ConOut",
+                         DevicePath,
+                         Check
+                         );
+  if (!EFI_ERROR (Status)) {
+    IsInConOutVariable = TRUE;
+  }
+
+  IsInErrOutVariable = FALSE;
+  Status             = ConPlatformUpdateDeviceVariable (
+                         L"ErrOut",
+                         DevicePath,
+                         Check
+                         );
+  if (!EFI_ERROR (Status)) {
+    IsInErrOutVariable = TRUE;
+  }
+
+  //
+  // Append the device path to the ConOutDev and ErrOutDev environment variable.
+  // For GOP device path, append the sibling device path as well.
+  //
+  if (!ConPlatformUpdateGopCandidate (DevicePath)) {
+    ConPlatformUpdateDeviceVariable (
+      L"ConOutDev",
+      DevicePath,
+      Append
+      );
+    //
+    // Then append the device path to the ErrOutDev environment variable
+    //
+    ConPlatformUpdateDeviceVariable (
+      L"ErrOutDev",
+      DevicePath,
+      Append
+      );
+  }
+
+  //
+  // If the device path is an instance in the ConOut environment variable,
+  // then install EfiConsoleOutDeviceGuid onto ControllerHandle
+  //
+  if (IsInConOutVariable) {
+    NeedClose = FALSE;
+    Status    = gBS->InstallMultipleProtocolInterfaces (
+                       &ControllerHandle,
+                       &gEfiConsoleOutDeviceGuid,
+                       NULL,
+                       NULL
+                       );
+  }
+
+  //
+  // If the device path is an instance in the ErrOut environment variable,
+  // then install EfiStandardErrorDeviceGuid onto ControllerHandle
+  //
+  if (IsInErrOutVariable) {
+    NeedClose = FALSE;
+    gBS->InstallMultipleProtocolInterfaces (
+           &ControllerHandle,
+           &gEfiStandardErrorDeviceGuid,
+           NULL,
+           NULL
+           );
+  }
+
+  if (NeedClose) {
+    gBS->CloseProtocol (
+           ControllerHandle,
+           &gEfiSimpleTextOutProtocolGuid,
+           This->DriverBindingHandle,
+           ControllerHandle
+           );
+  }
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Stop this driver on ControllerHandle by removing Console In Devcice GUID
+  and closing the Simple Text Input protocol on ControllerHandle.
+
+  @param  This              Protocol instance pointer.
+  @param  ControllerHandle  Handle of device to stop driver on
+  @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of
+                            children is zero stop the entire bus driver.
+  @param  ChildHandleBuffer List of Child Handles to Stop.
+
+  @retval EFI_SUCCESS       This driver is removed ControllerHandle
+  @retval other             This driver was not removed from this device
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformTextInDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  UINTN                        NumberOfChildren,
+  IN  EFI_HANDLE                   *ChildHandleBuffer
+  )
+{
+  EFI_STATUS                Status;
+  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;
+
+  //
+  // Get the Device Path Protocol firstly
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  (VOID **)&DevicePath,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  //
+  // If there is device path on ControllerHandle
+  //
+  if (!EFI_ERROR (Status)) {
+    //
+    // Remove DevicePath from ConInDev if exists.
+    //
+    ConPlatformUpdateDeviceVariable (
+      L"ConInDev",
+      DevicePath,
+      Delete
+      );
+  }
+
+  //
+  // Uninstall the Console Device GUIDs from Controller Handle
+  //
+  ConPlatformUnInstallProtocol (
+    This,
+    ControllerHandle,
+    &gEfiConsoleInDeviceGuid
+    );
+
+  //
+  // Close the Simple Text Input Protocol
+  //
+  gBS->CloseProtocol (
+         ControllerHandle,
+         &gEfiSimpleTextInProtocolGuid,
+         This->DriverBindingHandle,
+         ControllerHandle
+         );
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Stop this driver on ControllerHandle by removing Console Out Devcice GUID
+  and closing the Simple Text Output protocol on ControllerHandle.
+
+  @param  This              Protocol instance pointer.
+  @param  ControllerHandle  Handle of device to stop driver on
+  @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of
+                            children is zero stop the entire bus driver.
+  @param  ChildHandleBuffer List of Child Handles to Stop.
+
+  @retval EFI_SUCCESS       This driver is removed ControllerHandle
+  @retval other             This driver was not removed from this device
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformTextOutDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  UINTN                        NumberOfChildren,
+  IN  EFI_HANDLE                   *ChildHandleBuffer
+  )
+{
+  EFI_STATUS                Status;
+  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;
+
+  //
+  // Get the Device Path Protocol firstly
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  (VOID **)&DevicePath,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  if (!EFI_ERROR (Status)) {
+    //
+    // Remove DevicePath from ConOutDev and ErrOutDev if exists.
+    //
+    ConPlatformUpdateDeviceVariable (
+      L"ConOutDev",
+      DevicePath,
+      Delete
+      );
+    ConPlatformUpdateDeviceVariable (
+      L"ErrOutDev",
+      DevicePath,
+      Delete
+      );
+  }
+
+  //
+  // Uninstall the Console Device GUIDs from Controller Handle
+  //
+  ConPlatformUnInstallProtocol (
+    This,
+    ControllerHandle,
+    &gEfiConsoleOutDeviceGuid
+    );
+
+  ConPlatformUnInstallProtocol (
+    This,
+    ControllerHandle,
+    &gEfiStandardErrorDeviceGuid
+    );
+
+  //
+  // Close the Simple Text Output Protocol
+  //
+  gBS->CloseProtocol (
+         ControllerHandle,
+         &gEfiSimpleTextOutProtocolGuid,
+         This->DriverBindingHandle,
+         ControllerHandle
+         );
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Uninstall the specified protocol.
+
+  @param This            Protocol instance pointer.
+  @param Handle          Handle of device to uninstall protocol on.
+  @param ProtocolGuid    The specified protocol need to be uninstalled.
+
+**/
+VOID
+ConPlatformUnInstallProtocol (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  EFI_GUID                     *ProtocolGuid
+  )
+{
+  EFI_STATUS  Status;
+
+  Status = gBS->OpenProtocol (
+                  Handle,
+                  ProtocolGuid,
+                  NULL,
+                  This->DriverBindingHandle,
+                  Handle,
+                  EFI_OPEN_PROTOCOL_TEST_PROTOCOL
+                  );
+
+  if (!EFI_ERROR (Status)) {
+    gBS->UninstallMultipleProtocolInterfaces (
+           Handle,
+           ProtocolGuid,
+           NULL,
+           NULL
+           );
+  }
+
+  return;
+}
+
+/**
+  Get the necessary size of buffer and read the variable.
+
+  First get the necessary size of buffer. Then read the
+  EFI variable (Name) and return a dynamically allocated
+  buffer. On failure return NULL.
+
+  @param  Name             String part of EFI variable name
+
+  @return Dynamically allocated memory that contains a copy of the EFI variable.
+          Caller is repsoncible freeing the buffer. Return NULL means Variable
+          was not read.
+
+**/
+VOID *
+ConPlatformGetVariable (
+  IN  CHAR16  *Name
+  )
+{
+  EFI_STATUS  Status;
+  VOID        *Buffer;
+  UINTN       BufferSize;
+
+  BufferSize = 0;
+  Buffer     = NULL;
+
+  //
+  // Test to see if the variable exists.  If it doesn't, return NULL.
+  //
+  Status = gRT->GetVariable (
+                  Name,
+                  &gEfiGlobalVariableGuid,
+                  NULL,
+                  &BufferSize,
+                  Buffer
+                  );
+
+  if (Status == EFI_BUFFER_TOO_SMALL) {
+    //
+    // Allocate the buffer to return
+    //
+    Buffer = AllocatePool (BufferSize);
+    if (Buffer == NULL) {
+      return NULL;
+    }
+
+    //
+    // Read variable into the allocated buffer.
+    //
+    Status = gRT->GetVariable (
+                    Name,
+                    &gEfiGlobalVariableGuid,
+                    NULL,
+                    &BufferSize,
+                    Buffer
+                    );
+    if (EFI_ERROR (Status)) {
+      FreePool (Buffer);
+      //
+      // To make sure Buffer is NULL if any error occurs.
+      //
+      Buffer = NULL;
+    }
+  }
+
+  return Buffer;
+}
+
+/**
+  Function returns TRUE when the two input device paths point to the two
+  GOP child handles that have the same parent.
+
+  @param Left    A pointer to a device path data structure.
+  @param Right   A pointer to a device path data structure.
+
+  @retval TRUE  Left and Right share the same parent.
+  @retval FALSE Left and Right don't share the same parent or either of them is not
+                a GOP device path.
+**/
+BOOLEAN
+IsGopSibling (
+  IN EFI_DEVICE_PATH_PROTOCOL  *Left,
+  IN EFI_DEVICE_PATH_PROTOCOL  *Right
+  )
+{
+  EFI_DEVICE_PATH_PROTOCOL  *NodeLeft;
+  EFI_DEVICE_PATH_PROTOCOL  *NodeRight;
+
+  for (NodeLeft = Left; !IsDevicePathEndType (NodeLeft); NodeLeft = NextDevicePathNode (NodeLeft)) {
+    if (((DevicePathType (NodeLeft) == ACPI_DEVICE_PATH) && (DevicePathSubType (NodeLeft) == ACPI_ADR_DP)) ||
+        ((DevicePathType (NodeLeft) == HARDWARE_DEVICE_PATH) && (DevicePathSubType (NodeLeft) == HW_CONTROLLER_DP) &&
+         (DevicePathType (NextDevicePathNode (NodeLeft)) == ACPI_DEVICE_PATH) && (DevicePathSubType (NextDevicePathNode (NodeLeft)) == ACPI_ADR_DP)))
+    {
+      break;
+    }
+  }
+
+  if (IsDevicePathEndType (NodeLeft)) {
+    return FALSE;
+  }
+
+  for (NodeRight = Right; !IsDevicePathEndType (NodeRight); NodeRight = NextDevicePathNode (NodeRight)) {
+    if (((DevicePathType (NodeRight) == ACPI_DEVICE_PATH) && (DevicePathSubType (NodeRight) == ACPI_ADR_DP)) ||
+        ((DevicePathType (NodeRight) == HARDWARE_DEVICE_PATH) && (DevicePathSubType (NodeRight) == HW_CONTROLLER_DP) &&
+         (DevicePathType (NextDevicePathNode (NodeRight)) == ACPI_DEVICE_PATH) && (DevicePathSubType (NextDevicePathNode (NodeRight)) == ACPI_ADR_DP)))
+    {
+      break;
+    }
+  }
+
+  if (IsDevicePathEndType (NodeRight)) {
+    return FALSE;
+  }
+
+  if (((UINTN)NodeLeft - (UINTN)Left) != ((UINTN)NodeRight - (UINTN)Right)) {
+    return FALSE;
+  }
+
+  return (BOOLEAN)(CompareMem (Left, Right, (UINTN)NodeLeft - (UINTN)Left) == 0);
+}
+
+/**
+  Check whether a USB device match the specified USB Class device path. This
+  function follows "Load Option Processing" behavior in UEFI specification.
+
+  @param UsbIo       USB I/O protocol associated with the USB device.
+  @param UsbClass    The USB Class device path to match.
+
+  @retval TRUE       The USB device match the USB Class device path.
+  @retval FALSE      The USB device does not match the USB Class device path.
+
+**/
+BOOLEAN
+MatchUsbClass (
+  IN EFI_USB_IO_PROTOCOL    *UsbIo,
+  IN USB_CLASS_DEVICE_PATH  *UsbClass
+  )
+{
+  EFI_STATUS                    Status;
+  EFI_USB_DEVICE_DESCRIPTOR     DevDesc;
+  EFI_USB_INTERFACE_DESCRIPTOR  IfDesc;
+  UINT8                         DeviceClass;
+  UINT8                         DeviceSubClass;
+  UINT8                         DeviceProtocol;
+
+  if ((DevicePathType (UsbClass) != MESSAGING_DEVICE_PATH) ||
+      (DevicePathSubType (UsbClass) != MSG_USB_CLASS_DP))
+  {
+    return FALSE;
+  }
+
+  //
+  // Check Vendor Id and Product Id.
+  //
+  Status = UsbIo->UsbGetDeviceDescriptor (UsbIo, &DevDesc);
+  if (EFI_ERROR (Status)) {
+    return FALSE;
+  }
+
+  if ((UsbClass->VendorId != 0xffff) &&
+      (UsbClass->VendorId != DevDesc.IdVendor))
+  {
+    return FALSE;
+  }
+
+  if ((UsbClass->ProductId != 0xffff) &&
+      (UsbClass->ProductId != DevDesc.IdProduct))
+  {
+    return FALSE;
+  }
+
+  DeviceClass    = DevDesc.DeviceClass;
+  DeviceSubClass = DevDesc.DeviceSubClass;
+  DeviceProtocol = DevDesc.DeviceProtocol;
+  if (DeviceClass == 0) {
+    //
+    // If Class in Device Descriptor is set to 0, use the Class, SubClass and
+    // Protocol in Interface Descriptor instead.
+    //
+    Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &IfDesc);
+    if (EFI_ERROR (Status)) {
+      return FALSE;
+    }
+
+    DeviceClass    = IfDesc.InterfaceClass;
+    DeviceSubClass = IfDesc.InterfaceSubClass;
+    DeviceProtocol = IfDesc.InterfaceProtocol;
+  }
+
+  //
+  // Check Class, SubClass and Protocol.
+  //
+  if ((UsbClass->DeviceClass != 0xff) &&
+      (UsbClass->DeviceClass != DeviceClass))
+  {
+    return FALSE;
+  }
+
+  if ((UsbClass->DeviceSubClass != 0xff) &&
+      (UsbClass->DeviceSubClass != DeviceSubClass))
+  {
+    return FALSE;
+  }
+
+  if ((UsbClass->DeviceProtocol != 0xff) &&
+      (UsbClass->DeviceProtocol != DeviceProtocol))
+  {
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
+/**
+  Check whether a USB device match the specified USB WWID device path. This
+  function follows "Load Option Processing" behavior in UEFI specification.
+
+  @param UsbIo       USB I/O protocol associated with the USB device.
+  @param UsbWwid     The USB WWID device path to match.
+
+  @retval TRUE       The USB device match the USB WWID device path.
+  @retval FALSE      The USB device does not match the USB WWID device path.
+
+**/
+BOOLEAN
+MatchUsbWwid (
+  IN EFI_USB_IO_PROTOCOL   *UsbIo,
+  IN USB_WWID_DEVICE_PATH  *UsbWwid
+  )
+{
+  EFI_STATUS                    Status;
+  EFI_USB_DEVICE_DESCRIPTOR     DevDesc;
+  EFI_USB_INTERFACE_DESCRIPTOR  IfDesc;
+  UINT16                        *LangIdTable;
+  UINT16                        TableSize;
+  UINT16                        Index;
+  CHAR16                        *CompareStr;
+  UINTN                         CompareLen;
+  CHAR16                        *SerialNumberStr;
+  UINTN                         Length;
+
+  if ((DevicePathType (UsbWwid) != MESSAGING_DEVICE_PATH) ||
+      (DevicePathSubType (UsbWwid) != MSG_USB_WWID_DP))
+  {
+    return FALSE;
+  }
+
+  //
+  // Check Vendor Id and Product Id.
+  //
+  Status = UsbIo->UsbGetDeviceDescriptor (UsbIo, &DevDesc);
+  if (EFI_ERROR (Status)) {
+    return FALSE;
+  }
+
+  if ((DevDesc.IdVendor != UsbWwid->VendorId) ||
+      (DevDesc.IdProduct != UsbWwid->ProductId))
+  {
+    return FALSE;
+  }
+
+  //
+  // Check Interface Number.
+  //
+  Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &IfDesc);
+  if (EFI_ERROR (Status)) {
+    return FALSE;
+  }
+
+  if (IfDesc.InterfaceNumber != UsbWwid->InterfaceNumber) {
+    return FALSE;
+  }
+
+  //
+  // Check Serial Number.
+  //
+  if (DevDesc.StrSerialNumber == 0) {
+    return FALSE;
+  }
+
+  //
+  // Get all supported languages.
+  //
+  TableSize   = 0;
+  LangIdTable = NULL;
+  Status      = UsbIo->UsbGetSupportedLanguages (UsbIo, &LangIdTable, &TableSize);
+  if (EFI_ERROR (Status) || (TableSize == 0) || (LangIdTable == NULL)) {
+    return FALSE;
+  }
+
+  //
+  // Serial number in USB WWID device path is the last 64-or-less UTF-16 characters.
+  //
+  CompareStr = (CHAR16 *)(UINTN)(UsbWwid + 1);
+  CompareLen = (DevicePathNodeLength (UsbWwid) - sizeof (USB_WWID_DEVICE_PATH)) / sizeof (CHAR16);
+  if (CompareStr[CompareLen - 1] == L'\0') {
+    CompareLen--;
+  }
+
+  //
+  // Compare serial number in each supported language.
+  //
+  for (Index = 0; Index < TableSize / sizeof (UINT16); Index++) {
+    SerialNumberStr = NULL;
+    Status          = UsbIo->UsbGetStringDescriptor (
+                               UsbIo,
+                               LangIdTable[Index],
+                               DevDesc.StrSerialNumber,
+                               &SerialNumberStr
+                               );
+    if (EFI_ERROR (Status) || (SerialNumberStr == NULL)) {
+      continue;
+    }
+
+    Length = StrLen (SerialNumberStr);
+    if ((Length >= CompareLen) &&
+        (CompareMem (SerialNumberStr + Length - CompareLen, CompareStr, CompareLen * sizeof (CHAR16)) == 0))
+    {
+      FreePool (SerialNumberStr);
+      return TRUE;
+    }
+
+    FreePool (SerialNumberStr);
+  }
+
+  return FALSE;
+}
+
+/**
+  Compare whether a full console device path matches a USB shortform device path.
+
+  @param[in] FullPath      Full console device path.
+  @param[in] ShortformPath Short-form device path. Short-form device node may in the beginning or in the middle.
+
+  @retval TRUE  The full console device path matches the short-form device path.
+  @retval FALSE The full console device path doesn't match the short-form device path.
+**/
+BOOLEAN
+MatchUsbShortformDevicePath (
+  IN EFI_DEVICE_PATH_PROTOCOL  *FullPath,
+  IN EFI_DEVICE_PATH_PROTOCOL  *ShortformPath
+  )
+{
+  EFI_STATUS                Status;
+  EFI_DEVICE_PATH_PROTOCOL  *ShortformNode;
+  UINTN                     ParentDevicePathSize;
+  EFI_DEVICE_PATH_PROTOCOL  *RemainingDevicePath;
+  EFI_USB_IO_PROTOCOL       *UsbIo;
+  EFI_HANDLE                Handle;
+
+  for ( ShortformNode = ShortformPath
+        ; !IsDevicePathEnd (ShortformNode)
+        ; ShortformNode = NextDevicePathNode (ShortformNode)
+        )
+  {
+    if ((DevicePathType (ShortformNode) == MESSAGING_DEVICE_PATH) &&
+        ((DevicePathSubType (ShortformNode) == MSG_USB_CLASS_DP) ||
+         (DevicePathSubType (ShortformNode) == MSG_USB_WWID_DP))
+        )
+    {
+      break;
+    }
+  }
+
+  //
+  // Skip further compare when it's not a shortform device path.
+  //
+  if (IsDevicePathEnd (ShortformNode)) {
+    return FALSE;
+  }
+
+  //
+  // Compare the parent device path when the ShortformPath doesn't start with short-form node.
+  //
+  ParentDevicePathSize = (UINTN)ShortformNode - (UINTN)ShortformPath;
+  RemainingDevicePath  = FullPath;
+  Status               = gBS->LocateDevicePath (&gEfiUsbIoProtocolGuid, &RemainingDevicePath, &Handle);
+  if (EFI_ERROR (Status)) {
+    return FALSE;
+  }
+
+  if (ParentDevicePathSize != 0) {
+    if ((ParentDevicePathSize > (UINTN)RemainingDevicePath - (UINTN)FullPath) ||
+        (CompareMem (FullPath, ShortformPath, ParentDevicePathSize) != 0))
+    {
+      return FALSE;
+    }
+  }
+
+  //
+  // Compar the USB layer.
+  //
+  Status = gBS->HandleProtocol (
+                  Handle,
+                  &gEfiUsbIoProtocolGuid,
+                  (VOID **)&UsbIo
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  return MatchUsbClass (UsbIo, (USB_CLASS_DEVICE_PATH *)ShortformNode) ||
+         MatchUsbWwid (UsbIo, (USB_WWID_DEVICE_PATH *)ShortformNode);
+}
+
+/**
+  Function compares a device path data structure to that of all the nodes of a
+  second device path instance.
+
+  @param Multi           A pointer to a multi-instance device path data structure.
+  @param Single          A pointer to a single-instance device path data structure.
+  @param NewDevicePath   If Delete is TRUE, this parameter must not be null, and it
+                         points to the remaining device path data structure.
+                         (remaining device path = Multi - Single.)
+  @param Delete          If TRUE, means removing Single from Multi.
+                         If FALSE, the routine just check whether Single matches
+                         with any instance in Multi.
+
+  @retval EFI_SUCCESS           If the Single is contained within Multi.
+  @retval EFI_NOT_FOUND         If the Single is not contained within Multi.
+  @retval EFI_INVALID_PARAMETER Multi is NULL.
+  @retval EFI_INVALID_PARAMETER Single is NULL.
+  @retval EFI_INVALID_PARAMETER NewDevicePath is NULL when Delete is TRUE.
+
+**/
+EFI_STATUS
+ConPlatformMatchDevicePaths (
+  IN  EFI_DEVICE_PATH_PROTOCOL  *Multi,
+  IN  EFI_DEVICE_PATH_PROTOCOL  *Single,
+  OUT EFI_DEVICE_PATH_PROTOCOL  **NewDevicePath OPTIONAL,
+  IN  BOOLEAN                   Delete
+  )
+{
+  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;
+  EFI_DEVICE_PATH_PROTOCOL  *TempDevicePath1;
+  EFI_DEVICE_PATH_PROTOCOL  *TempDevicePath2;
+  EFI_DEVICE_PATH_PROTOCOL  *DevicePathInst;
+  UINTN                     Size;
+
+  //
+  // The passed in DevicePath should not be NULL
+  //
+  if ((Multi == NULL) || (Single == NULL)) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  //
+  // If performing Delete operation, the NewDevicePath must not be NULL.
+  //
+  if (Delete) {
+    if (NewDevicePath == NULL) {
+      return EFI_INVALID_PARAMETER;
+    }
+  }
+
+  TempDevicePath1 = NULL;
+
+  DevicePath     = Multi;
+  DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);
+
+  //
+  // Search for the match of 'Single' in 'Multi'
+  //
+  while (DevicePathInst != NULL) {
+    if ((CompareMem (Single, DevicePathInst, Size) == 0) ||
+        IsGopSibling (Single, DevicePathInst) || MatchUsbShortformDevicePath (Single, DevicePathInst))
+    {
+      if (!Delete) {
+        //
+        // If Delete is FALSE, return EFI_SUCCESS if Single is found in Multi.
+        //
+        FreePool (DevicePathInst);
+        return EFI_SUCCESS;
+      }
+    } else {
+      if (Delete) {
+        //
+        // If the node of Multi does not match Single, then added it back to the result.
+        // That is, the node matching Single will be dropped and deleted from result.
+        //
+        TempDevicePath2 = AppendDevicePathInstance (
+                            TempDevicePath1,
+                            DevicePathInst
+                            );
+        if (TempDevicePath1 != NULL) {
+          FreePool (TempDevicePath1);
+        }
+
+        TempDevicePath1 = TempDevicePath2;
+      }
+    }
+
+    FreePool (DevicePathInst);
+    DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);
+  }
+
+  if (Delete) {
+    //
+    // Return the new device path data structure with specified node deleted.
+    //
+    *NewDevicePath = TempDevicePath1;
+    return EFI_SUCCESS;
+  }
+
+  return EFI_NOT_FOUND;
+}
+
+/**
+  Update console environment variables.
+
+  @param  VariableName    Console environment variables, ConOutDev, ConInDev
+                          ErrOutDev, ConIn ,ConOut or ErrOut.
+  @param  DevicePath      Console devcie's device path.
+  @param  Operation       Variable operations, including APPEND, CHECK and DELETE.
+
+  @retval EFI_SUCCESS           Variable operates successfully.
+  @retval EFI_OUT_OF_RESOURCES  If variable cannot be appended.
+  @retval other                 Variable updating failed.
+
+**/
+EFI_STATUS
+ConPlatformUpdateDeviceVariable (
+  IN  CHAR16                     *VariableName,
+  IN  EFI_DEVICE_PATH_PROTOCOL   *DevicePath,
+  IN  CONPLATFORM_VAR_OPERATION  Operation
+  )
+{
+  EFI_STATUS                Status;
+  EFI_DEVICE_PATH_PROTOCOL  *VariableDevicePath;
+  EFI_DEVICE_PATH_PROTOCOL  *NewVariableDevicePath;
+
+  VariableDevicePath    = NULL;
+  NewVariableDevicePath = NULL;
+
+  //
+  // Get Variable according to variable name.
+  // The memory for Variable is allocated within ConPlatformGetVarible(),
+  // it is the caller's responsibility to free the memory before return.
+  //
+  VariableDevicePath = ConPlatformGetVariable (VariableName);
+
+  if (Operation != Delete) {
+    //
+    // Match specified DevicePath in Console Variable.
+    //
+    Status = ConPlatformMatchDevicePaths (
+               VariableDevicePath,
+               DevicePath,
+               NULL,
+               FALSE
+               );
+
+    if ((Operation == Check) || (!EFI_ERROR (Status))) {
+      //
+      // Branch here includes 2 cases:
+      // 1. Operation is CHECK, simply return Status.
+      // 2. Operation is APPEND, and device path already exists in variable, also return.
+      //
+      if (VariableDevicePath != NULL) {
+        FreePool (VariableDevicePath);
+      }
+
+      return Status;
+    }
+
+    //
+    // We reach here to append a device path that does not exist in variable.
+    //
+    Status                = EFI_SUCCESS;
+    NewVariableDevicePath = AppendDevicePathInstance (
+                              VariableDevicePath,
+                              DevicePath
+                              );
+    if (NewVariableDevicePath == NULL) {
+      Status = EFI_OUT_OF_RESOURCES;
+    }
+  } else {
+    //
+    // We reach here to remove DevicePath from the environment variable that
+    // is a multi-instance device path.
+    //
+    Status = ConPlatformMatchDevicePaths (
+               VariableDevicePath,
+               DevicePath,
+               &NewVariableDevicePath,
+               TRUE
+               );
+  }
+
+  if (VariableDevicePath != NULL) {
+    FreePool (VariableDevicePath);
+  }
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  if (NewVariableDevicePath != NULL) {
+    //
+    // Update Console Environment Variable.
+    //
+    Status = gRT->SetVariable (
+                    VariableName,
+                    &gEfiGlobalVariableGuid,
+                    EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
+                    GetDevicePathSize (NewVariableDevicePath),
+                    NewVariableDevicePath
+                    );
+
+    FreePool (NewVariableDevicePath);
+  }
+
+  return Status;
+}
+
+/**
+  Update ConOutDev and ErrOutDev variables to add the device path of
+  GOP controller itself and the sibling controllers.
+
+  @param  DevicePath            Pointer to device's device path.
+
+  @retval TRUE                  The devcie is a GOP device.
+  @retval FALSE                 The devcie is not a GOP device.
+
+**/
+BOOLEAN
+ConPlatformUpdateGopCandidate (
+  IN  EFI_DEVICE_PATH_PROTOCOL  *DevicePath
+  )
+{
+  EFI_STATUS                Status;
+  EFI_HANDLE                PciHandle;
+  EFI_HANDLE                GopHandle;
+  EFI_DEVICE_PATH_PROTOCOL  *TempDevicePath;
+
+  //
+  // Check whether it's a GOP device.
+  //
+  TempDevicePath = DevicePath;
+  Status         = gBS->LocateDevicePath (&gEfiGraphicsOutputProtocolGuid, &TempDevicePath, &GopHandle);
+  if (EFI_ERROR (Status)) {
+    return FALSE;
+  }
+
+  //
+  // Get the parent PciIo handle in order to find all the children
+  //
+  Status = gBS->LocateDevicePath (&gEfiPciIoProtocolGuid, &DevicePath, &PciHandle);
+  if (EFI_ERROR (Status)) {
+    return FALSE;
+  }
+
+  TempDevicePath = EfiBootManagerGetGopDevicePath (PciHandle);
+  if (TempDevicePath != NULL) {
+    ConPlatformUpdateDeviceVariable (L"ConOutDev", TempDevicePath, Append);
+    ConPlatformUpdateDeviceVariable (L"ErrOutDev", TempDevicePath, Append);
+  }
+
+  return TRUE;
+}
diff --git a/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatform.h b/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatform.h
index f63b25c465..02e8aa7440 100644
--- a/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatform.h
+++ b/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatform.h
@@ -1,418 +1,418 @@
-/** @file

-  Header file for Console Platfrom DXE Driver.

-

-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>

-SPDX-License-Identifier: BSD-2-Clause-Patent

-

-**/

-

-#ifndef _CON_PLATFORM_H_

-#define _CON_PLATFORM_H_

-

-#include <Uefi.h>

-

-#include <Protocol/SimpleTextOut.h>

-#include <Protocol/DevicePath.h>

-#include <Protocol/SimpleTextIn.h>

-#include <Protocol/PciIo.h>

-#include <Protocol/UsbIo.h>

-#include <Protocol/GraphicsOutput.h>

-

-#include <Guid/GlobalVariable.h>

-#include <Guid/ConsoleInDevice.h>

-#include <Guid/StandardErrorDevice.h>

-#include <Guid/ConsoleOutDevice.h>

-

-#include <Library/DebugLib.h>

-#include <Library/UefiDriverEntryPoint.h>

-#include <Library/UefiLib.h>

-#include <Library/BaseMemoryLib.h>

-#include <Library/UefiBootServicesTableLib.h>

-#include <Library/UefiRuntimeServicesTableLib.h>

-#include <Library/DevicePathLib.h>

-#include <Library/MemoryAllocationLib.h>

-#include <Library/UefiBootManagerLib.h>

-

-//

-// Driver Binding Externs

-//

-extern EFI_DRIVER_BINDING_PROTOCOL   gConPlatformTextInDriverBinding;

-extern EFI_COMPONENT_NAME_PROTOCOL   gConPlatformComponentName;

-extern EFI_COMPONENT_NAME2_PROTOCOL  gConPlatformComponentName2;

-extern EFI_DRIVER_BINDING_PROTOCOL   gConPlatformTextOutDriverBinding;

-extern EFI_COMPONENT_NAME_PROTOCOL   gConPlatformComponentName;

-extern EFI_COMPONENT_NAME2_PROTOCOL  gConPlatformComponentName2;

-

-typedef enum {

-  Check,

-  Append,

-  Delete

-} CONPLATFORM_VAR_OPERATION;

-

-/**

-  Test to see if specific protocol could be supported on the ControllerHandle.

-

-  @param  This                Protocol instance pointer.

-  @param  ControllerHandle    Handle of device to test.

-  @param  ProtocolGuid        The specfic protocol.

-

-  @retval EFI_SUCCESS         This driver supports this device

-  @retval other               This driver does not support this device

-

-**/

-EFI_STATUS

-ConPlatformDriverBindingSupported (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   ControllerHandle,

-  IN  EFI_GUID                     *ProtocolGuid

-  );

-

-/**

-  Test to see if EFI_SIMPLE_TEXT_INPUT_PROTOCOL is supported on ControllerHandle.

-

-  @param  This                Protocol instance pointer.

-  @param  ControllerHandle    Handle of device to test.

-  @param  RemainingDevicePath Optional parameter use to pick a specific child

-                              device to start.

-

-  @retval EFI_SUCCESS         This driver supports this device.

-  @retval other               This driver does not support this device.

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformTextInDriverBindingSupported (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   Handle,

-  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath  OPTIONAL

-  );

-

-/**

-  Test to see if EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL is supported on ControllerHandle.

-

-  @param  This                Protocol instance pointer.

-  @param  ControllerHandle    Handle of device to test.

-  @param  RemainingDevicePath Optional parameter use to pick a specific child

-                              device to start.

-

-  @retval EFI_SUCCESS         This driver supports this device.

-  @retval other               This driver does not support this device.

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformTextOutDriverBindingSupported (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   Handle,

-  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath  OPTIONAL

-  );

-

-/**

-  Start this driver on the device for console input.

-

-  Start this driver on ControllerHandle by opening Simple Text Input Protocol,

-  reading Device Path, and installing Console In Devcice GUID on ControllerHandle.

-

-  Append its device path into the console environment variables ConInDev.

-

-  @param  This                 Protocol instance pointer.

-  @param  ControllerHandle     Handle of device to bind driver to

-  @param  RemainingDevicePath  Optional parameter use to pick a specific child

-                               device to start.

-

-  @retval EFI_SUCCESS          This driver is added to ControllerHandle

-  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle

-  @retval other                This driver does not support this device.

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformTextInDriverBindingStart (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   Handle,

-  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath

-  );

-

-/**

-  Start this driver on the device for console output and standard error output.

-

-  Start this driver on ControllerHandle by opening Simple Text Output Protocol,

-  reading Device Path, and installing Console Out Devcic GUID, Standard Error

-  Device GUID on ControllerHandle.

-

-  Append its device path into the console environment variables ConOutDev, ErrOutDev.

-

-  @param  This                 Protocol instance pointer.

-  @param  ControllerHandle     Handle of device to bind driver to

-  @param  RemainingDevicePath  Optional parameter use to pick a specific child

-                               device to start.

-

-  @retval EFI_SUCCESS          This driver is added to ControllerHandle

-  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle

-  @retval other                This driver does not support this device

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformTextOutDriverBindingStart (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   Handle,

-  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath

-  );

-

-/**

-  Stop this driver on ControllerHandle by removing Console In Devcice GUID

-  and closing the Simple Text Input protocol on ControllerHandle.

-

-  @param  This              Protocol instance pointer.

-  @param  ControllerHandle  Handle of device to stop driver on

-  @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of

-                            children is zero stop the entire bus driver.

-  @param  ChildHandleBuffer List of Child Handles to Stop.

-

-  @retval EFI_SUCCESS       This driver is removed ControllerHandle

-  @retval other             This driver was not removed from this device

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformTextInDriverBindingStop (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   Handle,

-  IN  UINTN                        NumberOfChildren,

-  IN  EFI_HANDLE                   *ChildHandleBuffer

-  );

-

-/**

-  Stop this driver on ControllerHandle by removing Console Out Devcice GUID

-  and closing the Simple Text Output protocol on ControllerHandle.

-

-  @param  This              Protocol instance pointer.

-  @param  ControllerHandle  Handle of device to stop driver on

-  @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of

-                            children is zero stop the entire bus driver.

-  @param  ChildHandleBuffer List of Child Handles to Stop.

-

-  @retval EFI_SUCCESS       This driver is removed ControllerHandle

-  @retval other             This driver was not removed from this device

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformTextOutDriverBindingStop (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   Handle,

-  IN  UINTN                        NumberOfChildren,

-  IN  EFI_HANDLE                   *ChildHandleBuffer

-  );

-

-/**

-  Uninstall the specified protocol.

-

-  @param This            Protocol instance pointer.

-  @param Handle          Handle of device to uninstall protocol on.

-  @param ProtocolGuid    The specified protocol need to be uninstalled.

-

-**/

-VOID

-ConPlatformUnInstallProtocol (

-  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN  EFI_HANDLE                   Handle,

-  IN  EFI_GUID                     *ProtocolGuid

-  );

-

-/**

-  Read the EFI variable (Name) and return a dynamically allocated

-  buffer, and the size of the buffer. On failure return NULL.

-

-  @param  Name             String part of EFI variable name

-

-  @return Dynamically allocated memory that contains a copy of the EFI variable.

-          Caller is repsoncible freeing the buffer. Return NULL means Variable

-          was not read.

-

-**/

-VOID *

-ConPlatformGetVariable (

-  IN  CHAR16  *Name

-  );

-

-/**

-  Function compares a device path data structure to that of all the nodes of a

-  second device path instance.

-

-

-  @param Multi           A pointer to a multi-instance device path data structure.

-  @param Single          A pointer to a single-instance device path data structure.

-  @param NewDevicePath   If Delete is TRUE, this parameter must not be null, and it

-                         points to the remaining device path data structure.

-                         (remaining device path = Multi - Single.)

-  @param Delete          If TRUE, means removing Single from Multi.

-                         If FALSE, the routine just check whether Single matches

-                         with any instance in Multi.

-

-  @retval EFI_SUCCESS           If the Single is contained within Multi.

-  @retval EFI_NOT_FOUND         If the Single is not contained within Multi.

-  @retval EFI_INVALID_PARAMETER Multi is NULL.

-  @retval EFI_INVALID_PARAMETER Single is NULL.

-  @retval EFI_INVALID_PARAMETER NewDevicePath is NULL when Delete is TRUE.

-

-**/

-EFI_STATUS

-ConPlatformMatchDevicePaths (

-  IN  EFI_DEVICE_PATH_PROTOCOL  *Multi,

-  IN  EFI_DEVICE_PATH_PROTOCOL  *Single,

-  OUT EFI_DEVICE_PATH_PROTOCOL  **NewDevicePath OPTIONAL,

-  IN  BOOLEAN                   Delete

-  );

-

-/**

-  Update console environment variables.

-

-  @param  VariableName    Console environment variables, ConOutDev, ConInDev

-                          StdErrDev, ConIn or ConOut.

-  @param  DevicePath      Console devcie's device path.

-  @param  Operation       Variable operations, including APPEND, CHECK and DELETE.

-

-  @retval EFI_SUCCESS           Variable operates successfully.

-  @retval EFI_OUT_OF_RESOURCES  If variable cannot be appended.

-  @retval other                 Variable updating failed.

-

-**/

-EFI_STATUS

-ConPlatformUpdateDeviceVariable (

-  IN  CHAR16                     *VariableName,

-  IN  EFI_DEVICE_PATH_PROTOCOL   *DevicePath,

-  IN  CONPLATFORM_VAR_OPERATION  Operation

-  );

-

-//

-// EFI Component Name Functions

-//

-

-/**

-  Retrieves a Unicode string that is the user readable name of the driver.

-

-  This function retrieves the user readable name of a driver in the form of a

-  Unicode string. If the driver specified by This has a user readable name in

-  the language specified by Language, then a pointer to the driver name is

-  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified

-  by This does not support the language specified by Language,

-  then EFI_UNSUPPORTED is returned.

-

-  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or

-                                EFI_COMPONENT_NAME_PROTOCOL instance.

-  @param  Language[in]          A pointer to a Null-terminated ASCII string

-                                array indicating the language. This is the

-                                language of the driver name that the caller is

-                                requesting, and it must match one of the

-                                languages specified in SupportedLanguages. The

-                                number of languages supported by a driver is up

-                                to the driver writer. Language is specified

-                                in RFC 4646 or ISO 639-2 language code format.

-  @param  DriverName[out]       A pointer to the Unicode string to return.

-                                This Unicode string is the name of the

-                                driver specified by This in the language

-                                specified by Language.

-

-  @retval EFI_SUCCESS           The Unicode string for the Driver specified by

-                                This and the language specified by Language was

-                                returned in DriverName.

-  @retval EFI_INVALID_PARAMETER Language is NULL.

-  @retval EFI_INVALID_PARAMETER DriverName is NULL.

-  @retval EFI_UNSUPPORTED       The driver specified by This does not support

-                                the language specified by Language.

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformComponentNameGetDriverName (

-  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,

-  IN  CHAR8                        *Language,

-  OUT CHAR16                       **DriverName

-  );

-

-/**

-  Retrieves a Unicode string that is the user readable name of the controller

-  that is being managed by a driver.

-

-  This function retrieves the user readable name of the controller specified by

-  ControllerHandle and ChildHandle in the form of a Unicode string. If the

-  driver specified by This has a user readable name in the language specified by

-  Language, then a pointer to the controller name is returned in ControllerName,

-  and EFI_SUCCESS is returned.  If the driver specified by This is not currently

-  managing the controller specified by ControllerHandle and ChildHandle,

-  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not

-  support the language specified by Language, then EFI_UNSUPPORTED is returned.

-

-  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or

-                                EFI_COMPONENT_NAME_PROTOCOL instance.

-  @param  ControllerHandle[in]  The handle of a controller that the driver

-                                specified by This is managing.  This handle

-                                specifies the controller whose name is to be

-                                returned.

-  @param  ChildHandle[in]       The handle of the child controller to retrieve

-                                the name of.  This is an optional parameter that

-                                may be NULL.  It will be NULL for device

-                                drivers.  It will also be NULL for a bus drivers

-                                that wish to retrieve the name of the bus

-                                controller.  It will not be NULL for a bus

-                                driver that wishes to retrieve the name of a

-                                child controller.

-  @param  Language[in]          A pointer to a Null-terminated ASCII string

-                                array indicating the language.  This is the

-                                language of the driver name that the caller is

-                                requesting, and it must match one of the

-                                languages specified in SupportedLanguages. The

-                                number of languages supported by a driver is up

-                                to the driver writer. Language is specified in

-                                RFC 4646 or ISO 639-2 language code format.

-  @param  ControllerName[out]   A pointer to the Unicode string to return.

-                                This Unicode string is the name of the

-                                controller specified by ControllerHandle and

-                                ChildHandle in the language specified by

-                                Language from the point of view of the driver

-                                specified by This.

-

-  @retval EFI_SUCCESS           The Unicode string for the user readable name in

-                                the language specified by Language for the

-                                driver specified by This was returned in

-                                DriverName.

-  @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.

-  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid

-                                EFI_HANDLE.

-  @retval EFI_INVALID_PARAMETER Language is NULL.

-  @retval EFI_INVALID_PARAMETER ControllerName is NULL.

-  @retval EFI_UNSUPPORTED       The driver specified by This is not currently

-                                managing the controller specified by

-                                ControllerHandle and ChildHandle.

-  @retval EFI_UNSUPPORTED       The driver specified by This does not support

-                                the language specified by Language.

-

-**/

-EFI_STATUS

-EFIAPI

-ConPlatformComponentNameGetControllerName (

-  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,

-  IN  EFI_HANDLE                   ControllerHandle,

-  IN  EFI_HANDLE                   ChildHandle        OPTIONAL,

-  IN  CHAR8                        *Language,

-  OUT CHAR16                       **ControllerName

-  );

-

-/**

-  Update ConOutDev and ErrOutDev variables to add the device path of

-  GOP controller itself and the sibling controllers.

-

-  @param  DevicePath            Pointer to device's device path.

-

-  @retval TRUE                  The devcie is a GOP device.

-  @retval FALSE                 The devcie is not a GOP device.

-

-**/

-BOOLEAN

-ConPlatformUpdateGopCandidate (

-  IN  EFI_DEVICE_PATH_PROTOCOL  *DevicePath

-  );

-

-#endif

+/** @file
+  Header file for Console Platfrom DXE Driver.
+
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _CON_PLATFORM_H_
+#define _CON_PLATFORM_H_
+
+#include <Uefi.h>
+
+#include <Protocol/SimpleTextOut.h>
+#include <Protocol/DevicePath.h>
+#include <Protocol/SimpleTextIn.h>
+#include <Protocol/PciIo.h>
+#include <Protocol/UsbIo.h>
+#include <Protocol/GraphicsOutput.h>
+
+#include <Guid/GlobalVariable.h>
+#include <Guid/ConsoleInDevice.h>
+#include <Guid/StandardErrorDevice.h>
+#include <Guid/ConsoleOutDevice.h>
+
+#include <Library/DebugLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootManagerLib.h>
+
+//
+// Driver Binding Externs
+//
+extern EFI_DRIVER_BINDING_PROTOCOL   gConPlatformTextInDriverBinding;
+extern EFI_COMPONENT_NAME_PROTOCOL   gConPlatformComponentName;
+extern EFI_COMPONENT_NAME2_PROTOCOL  gConPlatformComponentName2;
+extern EFI_DRIVER_BINDING_PROTOCOL   gConPlatformTextOutDriverBinding;
+extern EFI_COMPONENT_NAME_PROTOCOL   gConPlatformComponentName;
+extern EFI_COMPONENT_NAME2_PROTOCOL  gConPlatformComponentName2;
+
+typedef enum {
+  Check,
+  Append,
+  Delete
+} CONPLATFORM_VAR_OPERATION;
+
+/**
+  Test to see if specific protocol could be supported on the ControllerHandle.
+
+  @param  This                Protocol instance pointer.
+  @param  ControllerHandle    Handle of device to test.
+  @param  ProtocolGuid        The specfic protocol.
+
+  @retval EFI_SUCCESS         This driver supports this device
+  @retval other               This driver does not support this device
+
+**/
+EFI_STATUS
+ConPlatformDriverBindingSupported (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_GUID                     *ProtocolGuid
+  );
+
+/**
+  Test to see if EFI_SIMPLE_TEXT_INPUT_PROTOCOL is supported on ControllerHandle.
+
+  @param  This                Protocol instance pointer.
+  @param  ControllerHandle    Handle of device to test.
+  @param  RemainingDevicePath Optional parameter use to pick a specific child
+                              device to start.
+
+  @retval EFI_SUCCESS         This driver supports this device.
+  @retval other               This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformTextInDriverBindingSupported (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath  OPTIONAL
+  );
+
+/**
+  Test to see if EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL is supported on ControllerHandle.
+
+  @param  This                Protocol instance pointer.
+  @param  ControllerHandle    Handle of device to test.
+  @param  RemainingDevicePath Optional parameter use to pick a specific child
+                              device to start.
+
+  @retval EFI_SUCCESS         This driver supports this device.
+  @retval other               This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformTextOutDriverBindingSupported (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath  OPTIONAL
+  );
+
+/**
+  Start this driver on the device for console input.
+
+  Start this driver on ControllerHandle by opening Simple Text Input Protocol,
+  reading Device Path, and installing Console In Devcice GUID on ControllerHandle.
+
+  Append its device path into the console environment variables ConInDev.
+
+  @param  This                 Protocol instance pointer.
+  @param  ControllerHandle     Handle of device to bind driver to
+  @param  RemainingDevicePath  Optional parameter use to pick a specific child
+                               device to start.
+
+  @retval EFI_SUCCESS          This driver is added to ControllerHandle
+  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle
+  @retval other                This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformTextInDriverBindingStart (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
+  );
+
+/**
+  Start this driver on the device for console output and standard error output.
+
+  Start this driver on ControllerHandle by opening Simple Text Output Protocol,
+  reading Device Path, and installing Console Out Devcic GUID, Standard Error
+  Device GUID on ControllerHandle.
+
+  Append its device path into the console environment variables ConOutDev, ErrOutDev.
+
+  @param  This                 Protocol instance pointer.
+  @param  ControllerHandle     Handle of device to bind driver to
+  @param  RemainingDevicePath  Optional parameter use to pick a specific child
+                               device to start.
+
+  @retval EFI_SUCCESS          This driver is added to ControllerHandle
+  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle
+  @retval other                This driver does not support this device
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformTextOutDriverBindingStart (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
+  );
+
+/**
+  Stop this driver on ControllerHandle by removing Console In Devcice GUID
+  and closing the Simple Text Input protocol on ControllerHandle.
+
+  @param  This              Protocol instance pointer.
+  @param  ControllerHandle  Handle of device to stop driver on
+  @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of
+                            children is zero stop the entire bus driver.
+  @param  ChildHandleBuffer List of Child Handles to Stop.
+
+  @retval EFI_SUCCESS       This driver is removed ControllerHandle
+  @retval other             This driver was not removed from this device
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformTextInDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  UINTN                        NumberOfChildren,
+  IN  EFI_HANDLE                   *ChildHandleBuffer
+  );
+
+/**
+  Stop this driver on ControllerHandle by removing Console Out Devcice GUID
+  and closing the Simple Text Output protocol on ControllerHandle.
+
+  @param  This              Protocol instance pointer.
+  @param  ControllerHandle  Handle of device to stop driver on
+  @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of
+                            children is zero stop the entire bus driver.
+  @param  ChildHandleBuffer List of Child Handles to Stop.
+
+  @retval EFI_SUCCESS       This driver is removed ControllerHandle
+  @retval other             This driver was not removed from this device
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformTextOutDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  UINTN                        NumberOfChildren,
+  IN  EFI_HANDLE                   *ChildHandleBuffer
+  );
+
+/**
+  Uninstall the specified protocol.
+
+  @param This            Protocol instance pointer.
+  @param Handle          Handle of device to uninstall protocol on.
+  @param ProtocolGuid    The specified protocol need to be uninstalled.
+
+**/
+VOID
+ConPlatformUnInstallProtocol (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  EFI_GUID                     *ProtocolGuid
+  );
+
+/**
+  Read the EFI variable (Name) and return a dynamically allocated
+  buffer, and the size of the buffer. On failure return NULL.
+
+  @param  Name             String part of EFI variable name
+
+  @return Dynamically allocated memory that contains a copy of the EFI variable.
+          Caller is repsoncible freeing the buffer. Return NULL means Variable
+          was not read.
+
+**/
+VOID *
+ConPlatformGetVariable (
+  IN  CHAR16  *Name
+  );
+
+/**
+  Function compares a device path data structure to that of all the nodes of a
+  second device path instance.
+
+
+  @param Multi           A pointer to a multi-instance device path data structure.
+  @param Single          A pointer to a single-instance device path data structure.
+  @param NewDevicePath   If Delete is TRUE, this parameter must not be null, and it
+                         points to the remaining device path data structure.
+                         (remaining device path = Multi - Single.)
+  @param Delete          If TRUE, means removing Single from Multi.
+                         If FALSE, the routine just check whether Single matches
+                         with any instance in Multi.
+
+  @retval EFI_SUCCESS           If the Single is contained within Multi.
+  @retval EFI_NOT_FOUND         If the Single is not contained within Multi.
+  @retval EFI_INVALID_PARAMETER Multi is NULL.
+  @retval EFI_INVALID_PARAMETER Single is NULL.
+  @retval EFI_INVALID_PARAMETER NewDevicePath is NULL when Delete is TRUE.
+
+**/
+EFI_STATUS
+ConPlatformMatchDevicePaths (
+  IN  EFI_DEVICE_PATH_PROTOCOL  *Multi,
+  IN  EFI_DEVICE_PATH_PROTOCOL  *Single,
+  OUT EFI_DEVICE_PATH_PROTOCOL  **NewDevicePath OPTIONAL,
+  IN  BOOLEAN                   Delete
+  );
+
+/**
+  Update console environment variables.
+
+  @param  VariableName    Console environment variables, ConOutDev, ConInDev
+                          StdErrDev, ConIn or ConOut.
+  @param  DevicePath      Console devcie's device path.
+  @param  Operation       Variable operations, including APPEND, CHECK and DELETE.
+
+  @retval EFI_SUCCESS           Variable operates successfully.
+  @retval EFI_OUT_OF_RESOURCES  If variable cannot be appended.
+  @retval other                 Variable updating failed.
+
+**/
+EFI_STATUS
+ConPlatformUpdateDeviceVariable (
+  IN  CHAR16                     *VariableName,
+  IN  EFI_DEVICE_PATH_PROTOCOL   *DevicePath,
+  IN  CONPLATFORM_VAR_OPERATION  Operation
+  );
+
+//
+// EFI Component Name Functions
+//
+
+/**
+  Retrieves a Unicode string that is the user readable name of the driver.
+
+  This function retrieves the user readable name of a driver in the form of a
+  Unicode string. If the driver specified by This has a user readable name in
+  the language specified by Language, then a pointer to the driver name is
+  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
+  by This does not support the language specified by Language,
+  then EFI_UNSUPPORTED is returned.
+
+  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+                                EFI_COMPONENT_NAME_PROTOCOL instance.
+  @param  Language[in]          A pointer to a Null-terminated ASCII string
+                                array indicating the language. This is the
+                                language of the driver name that the caller is
+                                requesting, and it must match one of the
+                                languages specified in SupportedLanguages. The
+                                number of languages supported by a driver is up
+                                to the driver writer. Language is specified
+                                in RFC 4646 or ISO 639-2 language code format.
+  @param  DriverName[out]       A pointer to the Unicode string to return.
+                                This Unicode string is the name of the
+                                driver specified by This in the language
+                                specified by Language.
+
+  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
+                                This and the language specified by Language was
+                                returned in DriverName.
+  @retval EFI_INVALID_PARAMETER Language is NULL.
+  @retval EFI_INVALID_PARAMETER DriverName is NULL.
+  @retval EFI_UNSUPPORTED       The driver specified by This does not support
+                                the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  );
+
+/**
+  Retrieves a Unicode string that is the user readable name of the controller
+  that is being managed by a driver.
+
+  This function retrieves the user readable name of the controller specified by
+  ControllerHandle and ChildHandle in the form of a Unicode string. If the
+  driver specified by This has a user readable name in the language specified by
+  Language, then a pointer to the controller name is returned in ControllerName,
+  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
+  managing the controller specified by ControllerHandle and ChildHandle,
+  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
+  support the language specified by Language, then EFI_UNSUPPORTED is returned.
+
+  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+                                EFI_COMPONENT_NAME_PROTOCOL instance.
+  @param  ControllerHandle[in]  The handle of a controller that the driver
+                                specified by This is managing.  This handle
+                                specifies the controller whose name is to be
+                                returned.
+  @param  ChildHandle[in]       The handle of the child controller to retrieve
+                                the name of.  This is an optional parameter that
+                                may be NULL.  It will be NULL for device
+                                drivers.  It will also be NULL for a bus drivers
+                                that wish to retrieve the name of the bus
+                                controller.  It will not be NULL for a bus
+                                driver that wishes to retrieve the name of a
+                                child controller.
+  @param  Language[in]          A pointer to a Null-terminated ASCII string
+                                array indicating the language.  This is the
+                                language of the driver name that the caller is
+                                requesting, and it must match one of the
+                                languages specified in SupportedLanguages. The
+                                number of languages supported by a driver is up
+                                to the driver writer. Language is specified in
+                                RFC 4646 or ISO 639-2 language code format.
+  @param  ControllerName[out]   A pointer to the Unicode string to return.
+                                This Unicode string is the name of the
+                                controller specified by ControllerHandle and
+                                ChildHandle in the language specified by
+                                Language from the point of view of the driver
+                                specified by This.
+
+  @retval EFI_SUCCESS           The Unicode string for the user readable name in
+                                the language specified by Language for the
+                                driver specified by This was returned in
+                                DriverName.
+  @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
+  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
+                                EFI_HANDLE.
+  @retval EFI_INVALID_PARAMETER Language is NULL.
+  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
+  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
+                                managing the controller specified by
+                                ControllerHandle and ChildHandle.
+  @retval EFI_UNSUPPORTED       The driver specified by This does not support
+                                the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+ConPlatformComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_HANDLE                   ChildHandle        OPTIONAL,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **ControllerName
+  );
+
+/**
+  Update ConOutDev and ErrOutDev variables to add the device path of
+  GOP controller itself and the sibling controllers.
+
+  @param  DevicePath            Pointer to device's device path.
+
+  @retval TRUE                  The devcie is a GOP device.
+  @retval FALSE                 The devcie is not a GOP device.
+
+**/
+BOOLEAN
+ConPlatformUpdateGopCandidate (
+  IN  EFI_DEVICE_PATH_PROTOCOL  *DevicePath
+  );
+
+#endif
diff --git a/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.inf b/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.inf
index ad11c09c70..4c2a90b2ef 100644
--- a/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.inf
+++ b/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.inf
@@ -1,95 +1,95 @@
-## @file

-# Platform console driver manages console devices.

-#

-# Console Platfrom DXE Driver that specifies whether device can be used as console

-# input/output device or error output device and update global variables accordingly.

-#

-# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>

-#

-#  SPDX-License-Identifier: BSD-2-Clause-Patent

-#

-#

-##

-

-[Defines]

-  INF_VERSION                    = 0x00010005

-  BASE_NAME                      = ConPlatformDxe

-  MODULE_UNI_FILE                = ConPlatformDxe.uni

-  FILE_GUID                      = 51ccf399-4fdf-4e55-a45b-e123f84d456a

-  MODULE_TYPE                    = UEFI_DRIVER

-  VERSION_STRING                 = 1.0

-  ENTRY_POINT                    = InitializeConPlatform

-

-#

-# The following information is for reference only and not required by the build tools.

-#

-#  VALID_ARCHITECTURES           = IA32 X64 EBC

-#

-#  DRIVER_BINDING                =  gConPlatformTextInDriverBinding

-#  COMPONENT_NAME                =  gConPlatformComponentName

-#  COMPONENT_NAME2               =  gConPlatformComponentName2

-#  DRIVER_BINDING                =  gConPlatformTextOutDriverBinding

-#  COMPONENT_NAME                =  gConPlatformComponentName

-#  COMPONENT_NAME2               =  gConPlatformComponentName2

-#

-

-[Sources]

-  ComponentName.c

-  ConPlatform.h

-  ConPlatform.c

-

-[Packages]

-  MdePkg/MdePkg.dec

-  MdeModulePkg/MdeModulePkg.dec

-

-[LibraryClasses]

-  MemoryAllocationLib

-  DevicePathLib

-  UefiRuntimeServicesTableLib

-  UefiBootServicesTableLib

-  BaseMemoryLib

-  UefiLib

-  UefiDriverEntryPoint

-  DebugLib

-  UefiBootManagerLib

-

-[Guids]

-  #

-  # This is the VendorGuid of all architecturally defined variables in UEFI spec.

-  #

-  ## SOMETIMES_CONSUMES ## Variable:L"ConIn"

-  ## SOMETIMES_CONSUMES ## Variable:L"ConOut"

-  ## SOMETIMES_CONSUMES ## Variable:L"ErrOut"

-  ## SOMETIMES_PRODUCES ## Variable:L"ConInDev"

-  ## SOMETIMES_PRODUCES ## Variable:L"ConOutDev"

-  ## SOMETIMES_PRODUCES ## Variable:L"ErrOutDev"

-  gEfiGlobalVariableGuid

-  #

-  # This GUID is used to specify the device is the standard error device.

-  # If the device is a standard error device, this GUID as the protocol GUID will be installed

-  # onto this device handle.

-  #

-  gEfiStandardErrorDeviceGuid                   ## SOMETIMES_PRODUCES ## UNDEFINED # protocol GUID installed on device handle

-  #

-  # This GUID is used to specify the device is the console output device.

-  # If the device is a console output device, this GUID as the protocol GUID will be installed

-  # onto this device handle.

-  #

-  gEfiConsoleOutDeviceGuid                      ## SOMETIMES_PRODUCES ## UNDEFINED # protocol GUID installed on device handle

-  #

-  # This GUID is used to specify the device is the console input device.

-  # If the device is a console input device, this GUID as the protocol GUID will be installed

-  # onto this device handle.

-  #

-  gEfiConsoleInDeviceGuid                       ## SOMETIMES_PRODUCES ## UNDEFINED # protocol GUID installed on device handle

-

-[Protocols]

-  gEfiDevicePathProtocolGuid                    ## TO_START

-  gEfiSimpleTextInProtocolGuid                  ## TO_START

-  gEfiSimpleTextOutProtocolGuid                 ## TO_START

-  gEfiPciIoProtocolGuid                         ## SOMETIMES_CONSUMES

-  gEfiGraphicsOutputProtocolGuid                ## SOMETIMES_CONSUMES

-  gEfiUsbIoProtocolGuid                         ## SOMETIMES_CONSUMES

-

-[UserExtensions.TianoCore."ExtraFiles"]

-  ConPlatformDxeExtra.uni

+## @file
+# Platform console driver manages console devices.
+#
+# Console Platfrom DXE Driver that specifies whether device can be used as console
+# input/output device or error output device and update global variables accordingly.
+#
+# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = ConPlatformDxe
+  MODULE_UNI_FILE                = ConPlatformDxe.uni
+  FILE_GUID                      = 51ccf399-4fdf-4e55-a45b-e123f84d456a
+  MODULE_TYPE                    = UEFI_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = InitializeConPlatform
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 EBC
+#
+#  DRIVER_BINDING                =  gConPlatformTextInDriverBinding
+#  COMPONENT_NAME                =  gConPlatformComponentName
+#  COMPONENT_NAME2               =  gConPlatformComponentName2
+#  DRIVER_BINDING                =  gConPlatformTextOutDriverBinding
+#  COMPONENT_NAME                =  gConPlatformComponentName
+#  COMPONENT_NAME2               =  gConPlatformComponentName2
+#
+
+[Sources]
+  ComponentName.c
+  ConPlatform.h
+  ConPlatform.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  MemoryAllocationLib
+  DevicePathLib
+  UefiRuntimeServicesTableLib
+  UefiBootServicesTableLib
+  BaseMemoryLib
+  UefiLib
+  UefiDriverEntryPoint
+  DebugLib
+  UefiBootManagerLib
+
+[Guids]
+  #
+  # This is the VendorGuid of all architecturally defined variables in UEFI spec.
+  #
+  ## SOMETIMES_CONSUMES ## Variable:L"ConIn"
+  ## SOMETIMES_CONSUMES ## Variable:L"ConOut"
+  ## SOMETIMES_CONSUMES ## Variable:L"ErrOut"
+  ## SOMETIMES_PRODUCES ## Variable:L"ConInDev"
+  ## SOMETIMES_PRODUCES ## Variable:L"ConOutDev"
+  ## SOMETIMES_PRODUCES ## Variable:L"ErrOutDev"
+  gEfiGlobalVariableGuid
+  #
+  # This GUID is used to specify the device is the standard error device.
+  # If the device is a standard error device, this GUID as the protocol GUID will be installed
+  # onto this device handle.
+  #
+  gEfiStandardErrorDeviceGuid                   ## SOMETIMES_PRODUCES ## UNDEFINED # protocol GUID installed on device handle
+  #
+  # This GUID is used to specify the device is the console output device.
+  # If the device is a console output device, this GUID as the protocol GUID will be installed
+  # onto this device handle.
+  #
+  gEfiConsoleOutDeviceGuid                      ## SOMETIMES_PRODUCES ## UNDEFINED # protocol GUID installed on device handle
+  #
+  # This GUID is used to specify the device is the console input device.
+  # If the device is a console input device, this GUID as the protocol GUID will be installed
+  # onto this device handle.
+  #
+  gEfiConsoleInDeviceGuid                       ## SOMETIMES_PRODUCES ## UNDEFINED # protocol GUID installed on device handle
+
+[Protocols]
+  gEfiDevicePathProtocolGuid                    ## TO_START
+  gEfiSimpleTextInProtocolGuid                  ## TO_START
+  gEfiSimpleTextOutProtocolGuid                 ## TO_START
+  gEfiPciIoProtocolGuid                         ## SOMETIMES_CONSUMES
+  gEfiGraphicsOutputProtocolGuid                ## SOMETIMES_CONSUMES
+  gEfiUsbIoProtocolGuid                         ## SOMETIMES_CONSUMES
+
+[UserExtensions.TianoCore."ExtraFiles"]
+  ConPlatformDxeExtra.uni
diff --git a/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.uni b/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.uni
index 40c54790f6..f87be3704a 100644
--- a/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.uni
+++ b/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.uni
@@ -1,17 +1,17 @@
-// /** @file

-// Platform console driver manages console devices.

-//

-// Console Platfrom DXE Driver that specifies whether device can be used as console

-// input/output device or error output device and update global variables accordingly.

-//

-// Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>

-//

-// SPDX-License-Identifier: BSD-2-Clause-Patent

-//

-// **/

-

-

-#string STR_MODULE_ABSTRACT             #language en-US "Manages console devices"

-

-#string STR_MODULE_DESCRIPTION          #language en-US "Console Platform DXE Driver that specifies whether a device can be used as console input/output device or error output device and updates global variables accordingly."

-

+// /** @file
+// Platform console driver manages console devices.
+//
+// Console Platfrom DXE Driver that specifies whether device can be used as console
+// input/output device or error output device and update global variables accordingly.
+//
+// Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT             #language en-US "Manages console devices"
+
+#string STR_MODULE_DESCRIPTION          #language en-US "Console Platform DXE Driver that specifies whether a device can be used as console input/output device or error output device and updates global variables accordingly."
+
diff --git a/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxeExtra.uni b/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxeExtra.uni
index 797a143be0..dcf0c4fd19 100644
--- a/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxeExtra.uni
+++ b/MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxeExtra.uni
@@ -1,14 +1,14 @@
-// /** @file

-// ConPlatformDxe Localized Strings and Content

-//

-// Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR>

-//

-// SPDX-License-Identifier: BSD-2-Clause-Patent

-//

-// **/

-

-#string STR_PROPERTIES_MODULE_NAME

-#language en-US

-"Console Platform DXE Driver"

-

-

+// /** @file
+// ConPlatformDxe Localized Strings and Content
+//
+// Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// **/
+
+#string STR_PROPERTIES_MODULE_NAME
+#language en-US
+"Console Platform DXE Driver"
+
+