InternalS3SaveState.h revision 4fd606d1f5abe38e1f42c38de1d2e895166bd0f4
/** @file
Internal header file for S3 Boot Script Saver state driver.
Copyright (c) 2006 - 2010, 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
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 _INTERNAL_S3_SAVE_STATE_H_
#define _INTERNAL_S3_SAVE_STATE_H_
#include <PiDxe.h>
#include <Protocol/S3SaveState.h>
#include <Library/DebugLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/S3BootScriptLib.h>
#include <Library/SmbusLib.h>
#include <IndustryStandard/SmBus.h>
/**
Adds a record into S3 boot script table.
This function is used to store a boot script record into a given boot
script table. If the table specified by TableName is nonexistent in the
system, a new table will automatically be created and then the script record
will be added into the new table. This function is responsible for allocating
necessary memory for the script.
This function has a variable parameter list. The exact parameter list depends on
the OpCode that is passed into the function. If an unsupported OpCode or illegal
parameter list is passed in, this function returns EFI_INVALID_PARAMETER.
If there are not enough resources available for storing more scripts, this function returns
EFI_OUT_OF_RESOURCES.
@param This A pointer to the EFI_S3_SAVE_STATE_PROTOCOL instance.
@param OpCode The operation code (opcode) number.
@param ... Argument list that is specific to each opcode.
@retval EFI_SUCCESS The operation succeeded. A record was added into the
specified script table.
@retval EFI_INVALID_PARAMETER The parameter is illegal or the given boot script is not supported.
If the opcode is unknow or not supported because of the PCD
Feature Flags.
@retval EFI_OUT_OF_RESOURCES There is insufficient memory to store the boot script.
**/
...
);
/**
Insert a record into a specified Framework boot script table.
This function is used to store an OpCode to be replayed as part of the S3 resume boot path. It is
assumed this protocol has platform specific mechanism to store the OpCode set and replay them
during the S3 resume.
The opcode is inserted before or after the specified position in the boot script table. If Position is
NULL then that position is after the last opcode in the table (BeforeOrAfter is FALSE) or before
the first opcode in the table (BeforeOrAfter is TRUE). The position which is pointed to by
Position upon return can be used for subsequent insertions.
@param This A pointer to the EFI_S3_SAVE_STATE_PROTOCOL instance.
@param BeforeOrAfter Specifies whether the opcode is stored before (TRUE) or after (FALSE) the position
in the boot script table specified by Position. If Position is NULL or points to
NULL then the new opcode is inserted at the beginning of the table (if TRUE) or end
of the table (if FALSE).
@param Position On entry, specifies the position in the boot script table where the opcode will be
inserted, either before or after, depending on BeforeOrAfter. On exit, specifies
the position of the inserted opcode in the boot script table.
@param OpCode The operation code (opcode) number.
@param ... Argument list that is specific to each opcode.
@retval EFI_SUCCESS The operation succeeded. A record was added into the
specified script table.
@retval EFI_INVALID_PARAMETER The Opcode is an invalid opcode value or the Position is not a valid position in the boot script table..
@retval EFI_OUT_OF_RESOURCES There is insufficient memory to store the boot script.
**/
...
);
/**
Find a label within the boot script table and, if not present, optionally create it.
If the label Label is already exists in the boot script table, then no new label is created, the
position of the Label is returned in *Position and EFI_SUCCESS is returned.
If the label Label does not already exist and CreateIfNotFound is TRUE, then it will be
created before or after the specified position and EFI_SUCCESS is returned.
If the label Label does not already exist and CreateIfNotFound is FALSE, then
EFI_NOT_FOUND is returned.
@param This A pointer to the EFI_S3_SAVE_STATE_PROTOCOL instance.
@param BeforeOrAfter Specifies whether the label is stored before (TRUE) or after (FALSE) the position in
the boot script table specified by Position. If Position is NULL or points to
NULL then the new label is inserted at the beginning of the table (if TRUE) or end of
the table (if FALSE).
@param CreateIfNotFound Specifies whether the label will be created if the label does not exists (TRUE) or not
(FALSE).
@param Position On entry, specifies the position in the boot script table where the label will be inserted,
either before or after, depending on BeforeOrAfter. On exit, specifies the position
of the inserted label in the boot script table.
@param Label Points to the label which will be inserted in the boot script table.
@retval EFI_SUCCESS The label already exists or was inserted.
@retval EFI_INVALID_PARAMETER The Opcode is an invalid opcode value or the Position is not a valid position in the boot script table..
**/
);
/**
Compare two positions in the boot script table and return their relative position.
This function compares two positions in the boot script table and returns their relative positions. If
Position1 is before Position2, then -1 is returned. If Position1 is equal to Position2,
then 0 is returned. If Position1 is after Position2, then 1 is returned.
@param This A pointer to the EFI_S3_SAVE_STATE_PROTOCOL instance.
@param Position1 The positions in the boot script table to compare
@param Position2 The positions in the boot script table to compare
@param RelativePosition On return, points to the result of the comparison
@retval EFI_SUCCESS The operation succeeded.
@retval EFI_INVALID_PARAMETER The Position1 or Position2 is not a valid position in the boot script table.
**/
);
#endif //_INTERNAL_S3_SAVE_STATE_H_