AudioDxe.h

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/*
 * File: AudioDxe.h
 *
 * 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.
 */
 
#ifndef EFI_AUDIODXE_H
#define EFI_AUDIODXE_H
 
//
// Common UEFI includes and library classes.
//
#include <Uefi.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/DevicePathLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/PcdLib.h>
#include <Library/SynchronizationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/UefiLib.h>
 
#include <IndustryStandard/HdaVerbs.h>
 
//
// Proctols that are consumed/produced.
//
#include <Protocol/AudioDecode.h>
#include <Protocol/AudioIo.h>
#include <Protocol/DevicePath.h>
#include <Protocol/DevicePathUtilities.h>
#include <Protocol/DriverBinding.h>
#include <Protocol/HdaIo.h>
#include <Protocol/HdaCodecInfo.h>
#include <Protocol/HdaControllerInfo.h>
 
// Driver version
#define AUDIODXE_VERSION      0xD
#define AUDIODXE_PKG_VERSION  1
 
// Driver Bindings.
extern EFI_DRIVER_BINDING_PROTOCOL  gHdaControllerDriverBinding;
extern EFI_DRIVER_BINDING_PROTOCOL  gHdaCodecDriverBinding;
extern EFI_AUDIO_DECODE_PROTOCOL    gEfiAudioDecodeProtocol;
 
// Cannot raise TPL above this value round any code which calls gBS->SetTimer
// (using the DxeCore implementation of it, e.g. at least OVMF).
// REF: MdeModulePkg/Core/Dxe/Event/Timer.c
#define TPL_DXE_CORE_TIMER  (TPL_HIGH_LEVEL - 1)
 
#endif // EFI_AUDIODXE_H