CloverBootloader/Drivers/AudioDxe/HdaController/HdaControllerInfo.c

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/*
* File: HdaControllerInfo.c
*
* Copyright (c) 2018 John Davis
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "HdaController.h"
/**
Gets the controller's name.
@param[in] This A pointer to the EFI_HDA_CONTROLLER_INFO_PROTOCOL instance.
@param[out] CodecName A pointer to the buffer to return the codec name.
@retval EFI_SUCCESS The controller name was retrieved.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
**/
EFI_STATUS
EFIAPI
HdaControllerInfoGetName(
IN EFI_HDA_CONTROLLER_INFO_PROTOCOL *This,
OUT CHAR16 **ControllerName)
{
//DEBUG((DEBUG_INFO, "HdaControllerInfoGetName(): start\n"));
// Create variables.
HDA_CONTROLLER_INFO_PRIVATE_DATA *HdaPrivateData;
// If parameters are null, fail.
if ((This == NULL) || (ControllerName == NULL))
return EFI_INVALID_PARAMETER;
// Get private data and fill node ID parameter.
HdaPrivateData = HDA_CONTROLLER_INFO_PRIVATE_DATA_FROM_THIS(This);
*ControllerName = HdaPrivateData->HdaControllerDev->Name;
return EFI_SUCCESS;
}