audk/DynamicTablesPkg/Include/Library/TableHelperLib.h

160 lines
5.4 KiB
C

/** @file
Copyright (c) 2017 - 2021, Arm Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@par Glossary:
- PFN - Pointer to a Function
**/
#ifndef TABLE_HELPER_LIB_H_
#define TABLE_HELPER_LIB_H_
/** Is a character upper case
*/
#define IS_UPPER_CHAR(x) ((x >= 'A') && (x <= 'Z'))
/** Is a character a decimal digit
*/
#define IS_DIGIT(x) ((x >= '0') && (x <= '9'))
/** Is a character an upper case hexadecimal digit
*/
#define IS_UPPER_HEX(x) (((x >= 'A') && (x <= 'F')) || IS_DIGIT (x))
/** The GetCgfMgrInfo function gets the CM_STD_OBJ_CONFIGURATION_MANAGER_INFO
object from the Configuration Manager.
@param [in] CfgMgrProtocol Pointer to the Configuration Manager protocol
interface.
@param [out] CfgMfrInfo Pointer to the Configuration Manager Info
object structure.
@retval EFI_SUCCESS The object is returned.
@retval EFI_INVALID_PARAMETER The Object ID is invalid.
@retval EFI_NOT_FOUND The requested Object is not found.
@retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration
Manager is less than the Object size.
**/
EFI_STATUS
EFIAPI
GetCgfMgrInfo (
IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,
OUT CM_STD_OBJ_CONFIGURATION_MANAGER_INFO ** CfgMfrInfo
);
/** The AddAcpiHeader function updates the ACPI header structure. It uses the
ACPI table Generator and the Configuration Manager protocol to obtain the
information required for constructing the header.
@param [in] CfgMgrProtocol Pointer to the Configuration Manager
protocol interface.
@param [in] Generator Pointer to the ACPI table Generator.
@param [in,out] AcpiHeader Pointer to the ACPI table header to be
updated.
@param [in] AcpiTableInfo Pointer to the ACPI table info structure.
@param [in] Length Length of the ACPI table.
@retval EFI_SUCCESS The ACPI table is updated successfully.
@retval EFI_INVALID_PARAMETER A parameter is invalid.
@retval EFI_NOT_FOUND The required object information is not found.
@retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration
Manager is less than the Object size for the
requested object.
**/
EFI_STATUS
EFIAPI
AddAcpiHeader (
IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,
IN CONST ACPI_TABLE_GENERATOR * CONST Generator,
IN OUT EFI_ACPI_DESCRIPTION_HEADER * CONST AcpiHeader,
IN CONST CM_STD_OBJ_ACPI_TABLE_INFO * CONST AcpiTableInfo,
IN CONST UINT32 Length
);
/**
Function prototype for testing if two arbitrary objects are equal.
@param [in] Object1 Pointer to the first object to compare.
@param [in] Object2 Pointer to the second object to compare.
@param [in] Index1 Index of Object1. This value is optional and
can be ignored by the specified implementation.
@param [in] Index2 Index of Object2. This value is optional and
can be ignored by the specified implementation.
@retval TRUE Object1 and Object2 are equal.
@retval FALSE Object1 and Object2 are NOT equal.
**/
typedef
BOOLEAN
(EFIAPI *PFN_IS_EQUAL)(
IN CONST VOID * Object1,
IN CONST VOID * Object2,
IN UINTN Index1 OPTIONAL,
IN UINTN Index2 OPTIONAL
);
/**
Test and report if a duplicate entry exists in the given array of comparable
elements.
@param [in] Array Array of elements to test for duplicates.
@param [in] Count Number of elements in Array.
@param [in] ElementSize Size of an element in bytes
@param [in] EqualTestFunction The function to call to check if any two
elements are equal.
@retval TRUE A duplicate element was found or one of
the input arguments is invalid.
@retval FALSE Every element in Array is unique.
**/
BOOLEAN
EFIAPI
FindDuplicateValue (
IN CONST VOID * Array,
IN CONST UINTN Count,
IN CONST UINTN ElementSize,
IN PFN_IS_EQUAL EqualTestFunction
);
/** Convert a hex number to its ASCII code.
@param [in] x Hex number to convert.
Must be 0 <= x < 16.
@return The ASCII code corresponding to x.
**/
UINT8
EFIAPI
AsciiFromHex (
IN UINT8 x
);
/** Check if a HID is a valid PNP ID.
@param [in] Hid The Hid to validate.
@retval TRUE The Hid is a valid PNP ID.
@retval FALSE The Hid is not a valid PNP ID.
**/
BOOLEAN
IsValidPnpId (
IN CONST CHAR8 * Hid
);
/** Check if a HID is a valid ACPI ID.
@param [in] Hid The Hid to validate.
@retval TRUE The Hid is a valid ACPI ID.
@retval FALSE The Hid is not a valid ACPI ID.
**/
BOOLEAN
IsValidAcpiId (
IN CONST CHAR8 * Hid
);
#endif // TABLE_HELPER_LIB_H_