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/** @file
Provides services to send progress/error codes to a POST card.
Copyright (c) 2006 - 2008, 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 __POST_CODE_LIB_H__
#define __POST_CODE_LIB_H__
#define POST_CODE_PROPERTY_POST_CODE_ENABLED 0x00000008
#define POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED 0x00000010
/**
Sends a 32-bit value to a POST card.
Sends the 32-bit value specified by Value to a POST card, and returns Value.
Some implementations of this library function may perform I/O operations
directly to a POST card device. Other implementations may send Value to
ReportStatusCode(), and the status code reporting mechanism will eventually
display the 32-bit value on the status reporting device.
PostCode() must actively prevent recursion. If PostCode() is called while
processing another Post Code Library function, then
PostCode() must return Value immediately.
@param Value The 32-bit value to write to the POST card.
@return The 32-bit value to write to the POST card.
**/
UINT32
EFIAPI
PostCode (
IN UINT32 Value
);
/**
Sends a 32-bit value to a POST and associated ASCII string.
Sends the 32-bit value specified by Value to a POST card, and returns Value.
If Description is not NULL, then the ASCII string specified by Description is
also passed to the handler that displays the POST card value. Some
implementations of this library function may perform I/O operations directly
to a POST card device. Other implementations may send Value to ReportStatusCode(),
and the status code reporting mechanism will eventually display the 32-bit
value on the status reporting device.
PostCodeWithDescription()must actively prevent recursion. If
PostCodeWithDescription() is called while processing another any other Post
Code Library function, then PostCodeWithDescription() must return Value
immediately.
@param Value The 32-bit value to write to the POST card.
@param Description Pointer to an ASCII string that is a description of the
POST code value. This is an optional parameter that may
be NULL.
@return The 32-bit value to write to the POST card.
**/
UINT32
EFIAPI
PostCodeWithDescription (
IN UINT32 Value,
IN CONST CHAR8 *Description OPTIONAL
);
/**
Returns TRUE if POST Codes are enabled.
This function returns TRUE if the POST_CODE_PROPERTY_POST_CODE_ENABLED
bit of PcdPostCodePropertyMask is set. Otherwise FALSE is returned.
@retval TRUE The POST_CODE_PROPERTY_POST_CODE_ENABLED bit of
PcdPostCodeProperyMask is set.
@retval FALSE The POST_CODE_PROPERTY_POST_CODE_ENABLED bit of
PcdPostCodeProperyMask is clear.
**/
BOOLEAN
EFIAPI
PostCodeEnabled (
VOID
);
/**
Returns TRUE if POST code descriptions are enabled.
This function returns TRUE if the POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED
bit of PcdPostCodePropertyMask is set. Otherwise FALSE is returned.
@retval TRUE The POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED bit of
PcdPostCodeProperyMask is set.
@retval FALSE The POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED bit of
PcdPostCodeProperyMask is clear.
**/
BOOLEAN
EFIAPI
PostCodeDescriptionEnabled (
VOID
);
/**
Sends a 32-bit value to a POST card.
If POST codes are enabled in PcdPostCodeProperyMask, then call PostCode()
passing in Value. Value is returned.
@param Value The 32-bit value to write to the POST card.
@return Value The 32-bit value to write to the POST card.
**/
#define POST_CODE(Value) PostCodeEnabled() ? PostCode(Value) : Value
/**
Sends a 32-bit value to a POST and associated ASCII string.
If POST codes and POST code descriptions are enabled in
PcdPostCodeProperyMask, then call PostCodeWithDescription() passing in
Value and Description. If only POST codes are enabled, then call PostCode()
passing in Value. Value is returned.
@param Value The 32-bit value to write to the POST card.
@param Description Pointer to an ASCII string that is a description of the
POST code value.
@return Value The 32-bit value to write to the POST card.
**/
#define POST_CODE_WITH_DESCRIPTION(Value,Description) \
PostCodeEnabled() ? \
(PostCodeDescriptionEnabled() ? \
PostCodeWithDescription(Value,Description) : \
PostCode(Value)) : \
Value
#endif
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