mirror of https://github.com/acidanthera/audk.git
408 lines
7.8 KiB
C
408 lines
7.8 KiB
C
/*++
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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Library.h
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Abstract:
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Revision History
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--*/
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#ifndef _DXE_LIBRARY_H_
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#define _DXE_LIBRARY_H_
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VOID
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CoreReportProgressCode (
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IN EFI_STATUS_CODE_VALUE Value
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)
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/*++
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Routine Description:
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Report status code of type EFI_PROGRESS_CODE by caller ID gEfiDxeServicesTableGuid.
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Arguments:
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Value - Describes the class/subclass/operation of the hardware or software entity
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that the Status Code relates to.
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Returns:
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None
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--*/
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;
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VOID
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CoreReportProgressCodeSpecific (
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IN EFI_STATUS_CODE_VALUE Value,
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IN EFI_HANDLE Handle
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)
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/*++
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Routine Description:
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Report status code of type EFI_PROGRESS_CODE by caller ID gEfiDxeServicesTableGuid,
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with a handle as additional information.
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Arguments:
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Value - Describes the class/subclass/operation of the hardware or software entity
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that the Status Code relates to.
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Handle - Additional information.
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Returns:
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None
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--*/
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;
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VOID
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CoreAcquireLock (
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IN EFI_LOCK *Lock
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)
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/*++
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Routine Description:
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Raising to the task priority level of the mutual exclusion
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lock, and then acquires ownership of the lock.
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Arguments:
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Lock - The lock to acquire
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Returns:
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Lock owned
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--*/
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;
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EFI_STATUS
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CoreAcquireLockOrFail (
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IN EFI_LOCK *Lock
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)
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/*++
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Routine Description:
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Initialize a basic mutual exclusion lock. Each lock
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provides mutual exclusion access at it's task priority
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level. Since there is no-premption (at any TPL) or
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multiprocessor support, acquiring the lock only consists
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of raising to the locks TPL.
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Arguments:
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Lock - The EFI_LOCK structure to initialize
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Returns:
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EFI_SUCCESS - Lock Owned.
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EFI_ACCESS_DENIED - Reentrant Lock Acquisition, Lock not Owned.
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--*/
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;
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VOID
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CoreReleaseLock (
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IN EFI_LOCK *Lock
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)
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/*++
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Routine Description:
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Releases ownership of the mutual exclusion lock, and
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restores the previous task priority level.
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Arguments:
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Lock - The lock to release
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Returns:
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Lock unowned
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--*/
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;
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//
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// Device Path functions
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//
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UINTN
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CoreDevicePathSize (
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
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)
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/*++
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Routine Description:
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Calculate the size of a whole device path.
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Arguments:
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DevicePath - The pointer to the device path data.
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Returns:
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Size of device path data structure..
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--*/
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;
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BOOLEAN
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CoreIsDevicePathMultiInstance (
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
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)
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/*++
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Routine Description:
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Return TRUE is this is a multi instance device path.
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Arguments:
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DevicePath - A pointer to a device path data structure.
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Returns:
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TRUE - If DevicePath is multi instance. FALSE - If DevicePath is not multi
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instance.
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--*/
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;
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EFI_DEVICE_PATH_PROTOCOL *
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CoreDuplicateDevicePath (
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
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)
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/*++
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Routine Description:
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Duplicate a new device path data structure from the old one.
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Arguments:
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DevicePath - A pointer to a device path data structure.
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Returns:
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A pointer to the new allocated device path data.
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Caller must free the memory used by DevicePath if it is no longer needed.
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--*/
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;
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EFI_DEVICE_PATH_PROTOCOL *
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CoreAppendDevicePath (
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IN EFI_DEVICE_PATH_PROTOCOL *Src1,
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IN EFI_DEVICE_PATH_PROTOCOL *Node
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)
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/*++
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Routine Description:
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Function is used to append a Src1 and Src2 together.
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Arguments:
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Src1 - A pointer to a device path data structure.
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Node - A pointer to a device path data structure.
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Returns:
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A pointer to the new device path is returned.
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NULL is returned if space for the new device path could not be allocated from pool.
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It is up to the caller to free the memory used by Src1 and Src2 if they are no longer needed.
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--*/
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;
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VOID *
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CoreAllocateBootServicesPool (
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IN UINTN AllocationSize
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)
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/*++
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Routine Description:
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Allocate pool of type EfiBootServicesData, the size is specified with AllocationSize.
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Arguments:
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AllocationSize - Size to allocate.
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Returns:
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Pointer of the allocated pool.
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--*/
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;
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VOID *
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CoreAllocateZeroBootServicesPool (
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IN UINTN AllocationSize
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)
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/*++
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Routine Description:
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Allocate pool of type EfiBootServicesData and zero it, the size is specified with AllocationSize.
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Arguments:
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AllocationSize - Size to allocate.
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Returns:
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Pointer of the allocated pool.
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--*/
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;
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EFI_STATUS
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CoreGetConfigTable (
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IN EFI_GUID *Guid,
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IN OUT VOID **Table
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)
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/*++
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Routine Description:
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Find a config table by name in system table's ConfigurationTable.
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Arguments:
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Guid - The table name to look for
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Table - Pointer of the config table
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Returns:
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EFI_NOT_FOUND - Could not find the table in system table's ConfigurationTable.
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EFI_SUCCESS - Table successfully found.
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--*/
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;
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VOID *
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CoreAllocateRuntimeCopyPool (
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IN UINTN AllocationSize,
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IN VOID *Buffer
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)
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/*++
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Routine Description:
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Allocate pool of specified size with EfiRuntimeServicesData type, and copy specified buffer to this pool.
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Arguments:
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AllocationSize - Size to allocate.
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Buffer - Specified buffer that will be copy to the allocated pool
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Returns:
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Pointer of the allocated pool.
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--*/
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;
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VOID *
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CoreAllocateRuntimePool (
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IN UINTN AllocationSize
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)
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/*++
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Routine Description:
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Allocate pool of type EfiRuntimeServicesData, the size is specified with AllocationSize.
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Arguments:
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AllocationSize - Size to allocate.
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Returns:
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Pointer of the allocated pool.
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--*/
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;
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VOID *
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CoreAllocateCopyPool (
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IN UINTN AllocationSize,
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IN VOID *Buffer
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)
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/*++
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Routine Description:
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Allocate pool of specified size with EfiBootServicesData type, and copy specified buffer to this pool.
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Arguments:
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AllocationSize - Size to allocate.
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Buffer - Specified buffer that will be copy to the allocated pool
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Returns:
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Pointer of the allocated pool.
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--*/
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;
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EFI_EVENT
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CoreCreateProtocolNotifyEvent (
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IN EFI_GUID *ProtocolGuid,
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IN EFI_TPL NotifyTpl,
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IN EFI_EVENT_NOTIFY NotifyFunction,
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IN VOID *NotifyContext,
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OUT VOID **Registration,
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IN BOOLEAN SignalFlag
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)
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/*++
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Routine Description:
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Create a protocol notification event and return it.
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Arguments:
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ProtocolGuid - Protocol to register notification event on.
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NotifyTpl - Maximum TPL to signal the NotifyFunction.
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NotifyFuncition - EFI notification routine.
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NotifyContext - Context passed into Event when it is created.
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Registration - Registration key returned from RegisterProtocolNotify().
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SignalFlag - Boolean value to decide whether kick the event after register or not.
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Returns:
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The EFI_EVENT that has been registered to be signaled when a ProtocolGuid
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is added to the system.
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--*/
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;
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#endif
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