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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
ComponentName.c
Abstract:
--*/
#include "keyboard.h"
//
// EFI Component Name Functions
//
EFI_STATUS
EFIAPI
UsbKeyboardComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
);
EFI_STATUS
EFIAPI
UsbKeyboardComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
);
//
// EFI Component Name Protocol
//
EFI_COMPONENT_NAME_PROTOCOL gUsbKeyboardComponentName = {
UsbKeyboardComponentNameGetDriverName,
UsbKeyboardComponentNameGetControllerName,
"eng"
};
STATIC EFI_UNICODE_STRING_TABLE mUsbKeyboardDriverNameTable[] = {
{ "eng", (CHAR16 *) L"Usb Keyboard Driver" },
{ NULL , NULL }
};
EFI_STATUS
EFIAPI
UsbKeyboardComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
)
/*++
Routine Description:
Retrieves a Unicode string that is the user readable name of the EFI Driver.
Arguments:
This - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
Language - A pointer to a three character ISO 639-2 language identifier.
This is the language of the driver name that 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.
DriverName - 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.
Returns:
EFI_SUCCESS - The Unicode string for the Driver specified by This
and the language specified by Language was returned
in DriverName.
EFI_INVALID_PARAMETER - Language is NULL.
EFI_INVALID_PARAMETER - DriverName is NULL.
EFI_UNSUPPORTED - The driver specified by This does not support the
language specified by Language.
--*/
{
return LookupUnicodeString (
Language,
gUsbKeyboardComponentName.SupportedLanguages,
mUsbKeyboardDriverNameTable,
DriverName
);
}
EFI_STATUS
EFIAPI
UsbKeyboardComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
)
/*++
Routine Description:
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by an EFI Driver.
Arguments:
This - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
ControllerHandle - The handle of a controller that the driver specified by
This is managing. This handle specifies the controller
whose name is to be returned.
ChildHandle - 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.
Language - A pointer to a three character ISO 639-2 language
identifier. This is the language of the controller name
that 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.
ControllerName - 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.
Returns:
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.
EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
EFI_INVALID_PARAMETER - Language is NULL.
EFI_INVALID_PARAMETER - ControllerName is NULL.
EFI_UNSUPPORTED - The driver specified by This is not currently managing
the controller specified by ControllerHandle and
ChildHandle.
EFI_UNSUPPORTED - The driver specified by This does not support the
language specified by Language.
--*/
{
EFI_STATUS Status;
USB_KB_DEV *UsbKbDev;
EFI_SIMPLE_TEXT_IN_PROTOCOL *SimpleTxtIn;
EFI_USB_IO_PROTOCOL *UsbIoProtocol;
//
// This is a device driver, so ChildHandle must be NULL.
//
if (ChildHandle != NULL) {
return EFI_UNSUPPORTED;
}
//
// Check Controller's handle
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiUsbIoProtocolGuid,
(VOID **) &UsbIoProtocol,
gUsbKeyboardDriverBinding.DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (!EFI_ERROR (Status)) {
gBS->CloseProtocol (
ControllerHandle,
&gEfiUsbIoProtocolGuid,
gUsbKeyboardDriverBinding.DriverBindingHandle,
ControllerHandle
);
return EFI_UNSUPPORTED;
}
if (Status != EFI_ALREADY_STARTED) {
return EFI_UNSUPPORTED;
}
//
// Get the device context
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiSimpleTextInProtocolGuid,
(VOID **) &SimpleTxtIn,
gUsbKeyboardDriverBinding.DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
UsbKbDev = USB_KB_DEV_FROM_THIS (SimpleTxtIn);
return LookupUnicodeString (
Language,
gUsbKeyboardComponentName.SupportedLanguages,
UsbKbDev->ControllerNameTable,
ControllerName
);
}
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