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Diffstat (limited to 'EDK/Foundation/Core/Dxe/Include/Library.h')
| -rw-r--r-- | EDK/Foundation/Core/Dxe/Include/Library.h | 531 |
1 files changed, 531 insertions, 0 deletions
diff --git a/EDK/Foundation/Core/Dxe/Include/Library.h b/EDK/Foundation/Core/Dxe/Include/Library.h new file mode 100644 index 0000000..9cd4da2 --- /dev/null +++ b/EDK/Foundation/Core/Dxe/Include/Library.h @@ -0,0 +1,531 @@ +/*++ + +Copyright (c) 2004 - 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: + + Library.h + +Abstract: + +Revision History + +--*/ + +#ifndef _DXE_LIBRARY_H_ +#define _DXE_LIBRARY_H_ + +typedef struct { + EFI_TPL Tpl; + EFI_TPL OwnerTpl; + UINTN Lock; +} EFI_LOCK; + + +// +// Macro to initialize the state of a lock when a lock variable is declared +// +#define EFI_INITIALIZE_LOCK_VARIABLE(Tpl) {Tpl,0,0} + +VOID +CoreReportProgressCode ( + IN EFI_STATUS_CODE_VALUE Value + ) +/*++ + +Routine Description: + + Report status code of type EFI_PROGRESS_CODE by caller ID gEfiDxeServicesTableGuid. + +Arguments: + + Value - Describes the class/subclass/operation of the hardware or software entity + that the Status Code relates to. + +Returns: + + None + +--*/ +; + +VOID +CoreReportProgressCodeSpecific ( + IN EFI_STATUS_CODE_VALUE Value, + IN EFI_HANDLE Handle + ) +/*++ + +Routine Description: + + Report status code of type EFI_PROGRESS_CODE by caller ID gEfiDxeServicesTableGuid, + with a handle as additional information. + +Arguments: + + Value - Describes the class/subclass/operation of the hardware or software entity + that the Status Code relates to. + + Handle - Additional information. + +Returns: + + None + +--*/ +; + +VOID +CoreAcquireLock ( + IN EFI_LOCK *Lock + ) +/*++ + +Routine Description: + + Raising to the task priority level of the mutual exclusion + lock, and then acquires ownership of the lock. + +Arguments: + + Lock - The lock to acquire + +Returns: + + Lock owned + +--*/ +; + +EFI_STATUS +CoreAcquireLockOrFail ( + IN EFI_LOCK *Lock + ) +/*++ + +Routine Description: + + Initialize a basic mutual exclusion lock. Each lock + provides mutual exclusion access at it's task priority + level. Since there is no-premption (at any TPL) or + multiprocessor support, acquiring the lock only consists + of raising to the locks TPL. + +Arguments: + + Lock - The EFI_LOCK structure to initialize + +Returns: + + EFI_SUCCESS - Lock Owned. + EFI_ACCESS_DENIED - Reentrant Lock Acquisition, Lock not Owned. + +--*/ +; + +VOID +CoreReleaseLock ( + IN EFI_LOCK *Lock + ) +/*++ + +Routine Description: + + Releases ownership of the mutual exclusion lock, and + restores the previous task priority level. + +Arguments: + + Lock - The lock to release + +Returns: + + Lock unowned + +--*/ +; + +// +// Device Path functions +// + +UINTN +CoreDevicePathSize ( + IN EFI_DEVICE_PATH_PROTOCOL *DevicePath + ) +/*++ + +Routine Description: + + Calculate the size of a whole device path. + +Arguments: + + DevicePath - The pointer to the device path data. + +Returns: + + Size of device path data structure.. + +--*/ +; + +BOOLEAN +CoreIsDevicePathMultiInstance ( + IN EFI_DEVICE_PATH_PROTOCOL *DevicePath + ) +/*++ + +Routine Description: + Return TRUE is this is a multi instance device path. + +Arguments: + DevicePath - A pointer to a device path data structure. + + +Returns: + TRUE - If DevicePath is multi instance. FALSE - If DevicePath is not multi + instance. + +--*/ +; + + +EFI_DEVICE_PATH_PROTOCOL * +CoreDuplicateDevicePath ( + IN EFI_DEVICE_PATH_PROTOCOL *DevicePath + ) +/*++ + +Routine Description: + Duplicate a new device path data structure from the old one. + +Arguments: + DevicePath - A pointer to a device path data structure. + +Returns: + A pointer to the new allocated device path data. + Caller must free the memory used by DevicePath if it is no longer needed. + +--*/ +; + +EFI_DEVICE_PATH_PROTOCOL * +CoreAppendDevicePath ( + IN EFI_DEVICE_PATH_PROTOCOL *Src1, + IN EFI_DEVICE_PATH_PROTOCOL *Node + ) +/*++ + +Routine Description: + Function is used to append a Src1 and Src2 together. + +Arguments: + Src1 - A pointer to a device path data structure. + + Node - A pointer to a device path data structure. + +Returns: + + A pointer to the new device path is returned. + NULL is returned if space for the new device path could not be allocated from pool. + It is up to the caller to free the memory used by Src1 and Src2 if they are no longer needed. + +--*/ +; + +VOID * +CoreAllocateBootServicesPool ( + IN UINTN AllocationSize + ) +/*++ + +Routine Description: + + Allocate pool of type EfiBootServicesData, the size is specified with AllocationSize. + +Arguments: + + AllocationSize - Size to allocate. + +Returns: + + Pointer of the allocated pool. + +--*/ +; + +VOID * +CoreAllocateZeroBootServicesPool ( + IN UINTN AllocationSize + ) +/*++ + +Routine Description: + + Allocate pool of type EfiBootServicesData and zero it, the size is specified with AllocationSize. + +Arguments: + + AllocationSize - Size to allocate. + +Returns: + + Pointer of the allocated pool. + +--*/ +; + +EFI_STATUS +CoreGetConfigTable ( + IN EFI_GUID *Guid, + IN OUT VOID **Table + ) +/*++ + +Routine Description: + + Find a config table by name in system table's ConfigurationTable. + +Arguments: + + Guid - The table name to look for + + Table - Pointer of the config table + +Returns: + + EFI_NOT_FOUND - Could not find the table in system table's ConfigurationTable. + + EFI_SUCCESS - Table successfully found. + +--*/ +; + +VOID * +CoreAllocateRuntimeCopyPool ( + IN UINTN AllocationSize, + IN VOID *Buffer + ) +/*++ + +Routine Description: + + Allocate pool of specified size with EfiRuntimeServicesData type, and copy specified buffer to this pool. + +Arguments: + + AllocationSize - Size to allocate. + + Buffer - Specified buffer that will be copy to the allocated pool + +Returns: + + Pointer of the allocated pool. + +--*/ +; + +VOID * +CoreAllocateRuntimePool ( + IN UINTN AllocationSize + ) +/*++ + +Routine Description: + + Allocate pool of type EfiRuntimeServicesData, the size is specified with AllocationSize. + +Arguments: + + AllocationSize - Size to allocate. + +Returns: + + Pointer of the allocated pool. + +--*/ +; + +VOID * +CoreAllocateCopyPool ( + IN UINTN AllocationSize, + IN VOID *Buffer + ) +/*++ + +Routine Description: + + Allocate pool of specified size with EfiBootServicesData type, and copy specified buffer to this pool. + +Arguments: + + AllocationSize - Size to allocate. + + Buffer - Specified buffer that will be copy to the allocated pool + +Returns: + + Pointer of the allocated pool. + +--*/ +; + +VOID +EfiDebugAssert ( + IN CHAR8 *FileName, + IN INTN LineNumber, + IN CHAR8 *Description + ) +/*++ + +Routine Description: + + Worker function for ASSERT(). If Error Logging hub is loaded, log DEBUG + information; If not, do BREAKPOINT(). + +Arguments: + + FileName - File name of failing routine. + + LineNumber - Line number of failing ASSERT(). + + Description - Descritption, usally the assertion string. + +Returns: + + None + +--*/ +; + +VOID +EfiDebugPrint ( + IN UINTN ErrorLevel, + IN CHAR8 *Format, + ... + ) +/*++ + +Routine Description: + + Wrapper for EfiDebugVPrint () + +Arguments: + + ErrorLevel - If error level is set do the debug print. + + Format - String to use for the print, followed by Print arguments. + + ... - Print arguments. + +Returns: + + None + +--*/ +; + +EFI_EVENT +CoreCreateProtocolNotifyEvent ( + IN EFI_GUID *ProtocolGuid, + IN EFI_TPL NotifyTpl, + IN EFI_EVENT_NOTIFY NotifyFunction, + IN VOID *NotifyContext, + OUT VOID **Registration, + IN BOOLEAN SignalFlag + ) +/*++ + +Routine Description: + + Create a protocol notification event and return it. + +Arguments: + + ProtocolGuid - Protocol to register notification event on. + + NotifyTpl - Maximum TPL to signal the NotifyFunction. + + NotifyFuncition - EFI notification routine. + + NotifyContext - Context passed into Event when it is created. + + Registration - Registration key returned from RegisterProtocolNotify(). + + SignalFlag - Boolean value to decide whether kick the event after register or not. + +Returns: + + The EFI_EVENT that has been registered to be signaled when a ProtocolGuid + is added to the system. + +--*/ +; + +VOID +EFIAPI +CoreInitializeFwVolDevicepathNode ( + IN MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *FvDevicePathNode, + IN EFI_GUID *NameGuid + ) +/*++ + +Routine Description: + + Initialize a Firmware Volume (FV) Media Device Path node. + + Tiano extended the EFI 1.10 device path nodes. Tiano does not own this enum + so as we move to UEFI 2.0 support we must use a mechanism that conforms with + the UEFI 2.0 specification to define the FV device path. An UEFI GUIDed + device path is defined for PIWG extensions of device path. If the code + is compiled to conform with the UEFI 2.0 specification use the new device path + else use the old form for backwards compatability. + +Arguments: + + FvDevicePathNode - Pointer to a FV device path node to initialize + NameGuid - FV file name to use in FvDevicePathNode + +--*/ +; + +EFI_GUID * +EFIAPI +CoreGetNameGuidFromFwVolDevicePathNode ( + IN MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *FvDevicePathNode + ) +/*++ + +Routine Description: + + Check to see if the Firmware Volume (FV) Media Device Path is valid. + + Tiano extended the EFI 1.10 device path nodes. Tiano does not own this enum + so as we move to UEFI 2.0 support we must use a mechanism that conforms with + the UEFI 2.0 specification to define the FV device path. An UEFI GUIDed + device path is defined for PIWG extensions of device path. If the code + is compiled to conform with the UEFI 2.0 specification use the new device path + else use the old form for backwards compatability. The return value to this + function points to a location in FvDevicePathNode and it does not allocate + new memory for the GUID pointer that is returned. + +Arguments: + + FvDevicePathNode Pointer to FV device path to check + +Returns: + + NULL - FvDevicePathNode is not valid. + Other - FvDevicePathNode is valid and pointer to NameGuid was returned. + +--*/ +; +#endif |