mirror of https://github.com/acidanthera/audk.git
95 lines
4.0 KiB
C
95 lines
4.0 KiB
C
/** @file
|
|
This protocol provide registering and unregistering services to status code
|
|
consumers while in DXE.
|
|
|
|
Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
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.
|
|
|
|
**/
|
|
|
|
#ifndef __REPORT_STATUS_CODE_HANDLER_PROTOCOL_H__
|
|
#define __REPORT_STATUS_CODE_HANDLER_PROTOCOL_H__
|
|
|
|
#define EFI_RSC_HANDLER_PROTOCOL_GUID \
|
|
{ \
|
|
0x86212936, 0xe76, 0x41c8, {0xa0, 0x3a, 0x2a, 0xf2, 0xfc, 0x1c, 0x39, 0xe2} \
|
|
}
|
|
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_RSC_HANDLER_CALLBACK)(
|
|
IN EFI_STATUS_CODE_TYPE CodeType,
|
|
IN EFI_STATUS_CODE_VALUE Value,
|
|
IN UINT32 Instance,
|
|
IN EFI_GUID *CallerId,
|
|
IN EFI_STATUS_CODE_DATA *Data
|
|
);
|
|
|
|
/**
|
|
Register the callback function for ReportStatusCode() notification.
|
|
|
|
When this function is called the function pointer is added to an internal list and any future calls to
|
|
ReportStatusCode() will be forwarded to the Callback function. During the bootservices,
|
|
this is the callback for which this service can be invoked. The report status code router
|
|
will create an event such that the callback function is only invoked at the TPL for which it was
|
|
registered. The entity that registers for the callback should also register for an event upon
|
|
generation of exit boot services and invoke the unregister service.
|
|
If the handler does not have a TPL dependency, it should register for a callback at TPL high. The
|
|
router infrastructure will support making callbacks at runtime, but the caller for runtime invocation
|
|
must meet the following criteria:
|
|
1. must be a runtime driver type so that its memory is not reclaimed
|
|
2. not unregister at exit boot services so that the router will still have its callback address
|
|
3. the caller must be self-contained (eg. Not call out into any boot-service interfaces) and be
|
|
runtime safe, in general.
|
|
|
|
@param[in] Callback A pointer to a function of type EFI_RSC_HANDLER_CALLBACK that is called when
|
|
a call to ReportStatusCode() occurs.
|
|
@param[in] Tpl TPL at which callback can be safely invoked.
|
|
|
|
@retval EFI_SUCCESS Function was successfully registered.
|
|
@retval EFI_INVALID_PARAMETER The callback function was NULL.
|
|
@retval EFI_OUT_OF_RESOURCES The internal buffer ran out of space. No more functions can be
|
|
registered.
|
|
@retval EFI_ALREADY_STARTED The function was already registered. It can't be registered again.
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_RSC_HANDLER_REGISTER)(
|
|
IN EFI_RSC_HANDLER_CALLBACK Callback,
|
|
IN EFI_TPL Tpl
|
|
);
|
|
|
|
/**
|
|
Remove a previously registered callback function from the notification list.
|
|
|
|
A callback function must be unregistered before it is deallocated. It is important that any registered
|
|
callbacks that are not runtime complaint be unregistered when ExitBootServices() is called.
|
|
|
|
@param[in] Callback A pointer to a function of type EFI_RSC_HANDLER_CALLBACK that is to be
|
|
unregistered.
|
|
|
|
@retval EFI_SUCCESS The function was successfully unregistered.
|
|
@retval EFI_INVALID_PARAMETER The callback function was NULL.
|
|
@retval EFI_NOT_FOUND The callback function was not found to be unregistered.
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_RSC_HANDLER_UNREGISTER)(
|
|
IN EFI_RSC_HANDLER_CALLBACK Callback
|
|
);
|
|
|
|
typedef struct {
|
|
EFI_RSC_HANDLER_REGISTER Register;
|
|
EFI_RSC_HANDLER_UNREGISTER Unregister;
|
|
} EFI_RSC_HANDLER_PROTOCOL;
|
|
|
|
extern EFI_GUID gEfiRscHandlerProtocolGuid;
|
|
|
|
#endif // __REPORT_STATUS_CODE_HANDLER_H__
|