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/** @file
The driver binding for VLAN configuration module.
Copyright (c) 2009, Intel Corporation.<BR>
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions
of the BSD License which accompanies this distribution. The full
text of the license may be found at<BR>
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "VlanConfigImpl.h"
EFI_GUID gVlanConfigPrivateGuid = VLAN_CONFIG_PRIVATE_GUID;
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_SUCCES 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_SUCCES 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_SUCCES 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,
&gVlanConfigPrivateGuid,
(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,
&gVlanConfigPrivateGuid,
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_SUCCES 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,
&gVlanConfigPrivateGuid,
(VOID **) &PrivateData,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
ASSERT (PrivateData->Signature == VLAN_CONFIG_PRIVATE_DATA_SIGNATURE);
//
// Uninstall VLAN configuration Form
//
UninstallVlanConfigForm (PrivateData);
//
// Uninstall the private GUID
//
Status = gBS->UninstallMultipleProtocolInterfaces (
ControllerHandle,
&gVlanConfigPrivateGuid,
PrivateData,
NULL
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->CloseProtocol (
ControllerHandle,
&gEfiVlanConfigProtocolGuid,
This->DriverBindingHandle,
ControllerHandle
);
return Status;
}
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