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- /** @file
- The driver binding for VLAN configuration module.
- Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #include "VlanConfigImpl.h"
- EFI_DRIVER_BINDING_PROTOCOL gVlanConfigDriverBinding = {
- VlanConfigDriverBindingSupported,
- VlanConfigDriverBindingStart,
- VlanConfigDriverBindingStop,
- 0xa,
- NULL,
- NULL
- };
- /**
- The entry point for IP4 config driver which install the driver
- binding and component name protocol on its image.
- @param[in] ImageHandle The image handle of the driver.
- @param[in] SystemTable The system table.
- @retval EFI_SUCCESS All the related protocols are installed on the driver.
- @retval Others Failed to install protocols.
- **/
- EFI_STATUS
- EFIAPI
- VlanConfigDriverEntryPoint (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
- {
- return EfiLibInstallDriverBindingComponentName2 (
- ImageHandle,
- SystemTable,
- &gVlanConfigDriverBinding,
- ImageHandle,
- &gVlanConfigComponentName,
- &gVlanConfigComponentName2
- );
- }
- /**
- Test to see if this driver supports ControllerHandle.
- @param[in] This Protocol instance pointer.
- @param[in] ControllerHandle Handle of device to test
- @param[in] RemainingDevicePath Optional parameter use to pick a specific child
- device to start.
- @retval EFI_SUCCESS This driver supports this device
- @retval EFI_ALREADY_STARTED This driver is already running on this device
- @retval other This driver does not support this device
- **/
- EFI_STATUS
- EFIAPI
- VlanConfigDriverBindingSupported (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
- )
- {
- EFI_STATUS Status;
- EFI_VLAN_CONFIG_PROTOCOL *VlanConfig;
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiVlanConfigProtocolGuid,
- (VOID **)&VlanConfig,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- //
- // Close the VlanConfig protocol opened for supported test
- //
- gBS->CloseProtocol (
- ControllerHandle,
- &gEfiVlanConfigProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
- return Status;
- }
- /**
- Start this driver on ControllerHandle.
- @param[in] This Protocol instance pointer.
- @param[in] ControllerHandle Handle of device to bind driver to
- @param[in] 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
- VlanConfigDriverBindingStart (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
- )
- {
- EFI_STATUS Status;
- EFI_VLAN_CONFIG_PROTOCOL *VlanConfig;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- VLAN_CONFIG_PRIVATE_DATA *PrivateData;
- //
- // Check for multiple start
- //
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiCallerIdGuid,
- (VOID **)&PrivateData,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
- if (!EFI_ERROR (Status)) {
- return EFI_ALREADY_STARTED;
- }
- //
- // Open VlanConfig protocol by driver
- //
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiVlanConfigProtocolGuid,
- (VOID **)&VlanConfig,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- //
- // Get parent device path
- //
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiDevicePathProtocolGuid,
- (VOID **)&DevicePath,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
- if (EFI_ERROR (Status)) {
- goto ErrorExit;
- }
- //
- // Create a private data for this network device
- //
- PrivateData = AllocateCopyPool (sizeof (VLAN_CONFIG_PRIVATE_DATA), &mVlanConfigPrivateDateTemplate);
- if (PrivateData == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto ErrorExit;
- }
- PrivateData->ImageHandle = This->DriverBindingHandle;
- PrivateData->ControllerHandle = ControllerHandle;
- PrivateData->VlanConfig = VlanConfig;
- PrivateData->ParentDevicePath = DevicePath;
- //
- // Install VLAN configuration form
- //
- Status = InstallVlanConfigForm (PrivateData);
- if (EFI_ERROR (Status)) {
- goto ErrorExit;
- }
- //
- // Install private GUID
- //
- Status = gBS->InstallMultipleProtocolInterfaces (
- &ControllerHandle,
- &gEfiCallerIdGuid,
- PrivateData,
- NULL
- );
- if (EFI_ERROR (Status)) {
- goto ErrorExit;
- }
- return Status;
- ErrorExit:
- gBS->CloseProtocol (
- ControllerHandle,
- &gEfiVlanConfigProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
- gBS->CloseProtocol (
- ControllerHandle,
- &gEfiDevicePathProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
- if (PrivateData != NULL) {
- UninstallVlanConfigForm (PrivateData);
- FreePool (PrivateData);
- }
- return Status;
- }
- /**
- Stop this driver on ControllerHandle.
- @param[in] This Protocol instance pointer.
- @param[in] ControllerHandle Handle of device to stop driver on
- @param[in] NumberOfChildren Number of Handles in ChildHandleBuffer. If number
- of children is zero stop the entire bus driver.
- @param[in] 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
- VlanConfigDriverBindingStop (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN UINTN NumberOfChildren,
- IN EFI_HANDLE *ChildHandleBuffer
- )
- {
- EFI_STATUS Status;
- VLAN_CONFIG_PRIVATE_DATA *PrivateData;
- //
- // Retrieve the PrivateData from ControllerHandle
- //
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiCallerIdGuid,
- (VOID **)&PrivateData,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- ASSERT (PrivateData->Signature == VLAN_CONFIG_PRIVATE_DATA_SIGNATURE);
- if (NumberOfChildren != 0) {
- if ((NumberOfChildren != 1) || (ChildHandleBuffer[0] != PrivateData->DriverHandle)) {
- return EFI_DEVICE_ERROR;
- }
- return UninstallVlanConfigForm (PrivateData);
- }
- //
- // Uninstall the private GUID
- //
- Status = gBS->UninstallMultipleProtocolInterfaces (
- ControllerHandle,
- &gEfiCallerIdGuid,
- PrivateData,
- NULL
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- Status = gBS->CloseProtocol (
- ControllerHandle,
- &gEfiVlanConfigProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
- return Status;
- }
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