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145 lines
4.7 KiB
C
145 lines
4.7 KiB
C
/** @file
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Provides services to send progress/error codes to a POST card.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __POST_CODE_LIB_H__
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#define __POST_CODE_LIB_H__
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#define POST_CODE_PROPERTY_POST_CODE_ENABLED 0x00000008
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#define POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED 0x00000010
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/**
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Sends a 32-bit value to a POST card.
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Sends the 32-bit value specified by Value to a POST card, and returns Value.
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Some implementations of this library function may perform I/O operations
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directly to a POST card device. Other implementations may send Value to
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ReportStatusCode(), and the status code reporting mechanism will eventually
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display the 32-bit value on the status reporting device.
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PostCode() must actively prevent recursion. If PostCode() is called while
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processing another Post Code Library function, then
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PostCode() must return Value immediately.
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@param Value The 32-bit value to write to the POST card.
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@return The 32-bit value to write to the POST card.
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**/
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UINT32
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EFIAPI
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PostCode (
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IN UINT32 Value
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);
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/**
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Sends a 32-bit value to a POST and associated ASCII string.
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Sends the 32-bit value specified by Value to a POST card, and returns Value.
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If Description is not NULL, then the ASCII string specified by Description is
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also passed to the handler that displays the POST card value. Some
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implementations of this library function may perform I/O operations directly
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to a POST card device. Other implementations may send Value to ReportStatusCode(),
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and the status code reporting mechanism will eventually display the 32-bit
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value on the status reporting device.
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PostCodeWithDescription()must actively prevent recursion. If
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PostCodeWithDescription() is called while processing another any other Post
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Code Library function, then PostCodeWithDescription() must return Value
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immediately.
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@param Value The 32-bit value to write to the POST card.
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@param Description Pointer to an ASCII string that is a description of the
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POST code value. This is an optional parameter that may
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be NULL.
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@return The 32-bit value to write to the POST card.
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**/
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UINT32
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EFIAPI
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PostCodeWithDescription (
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IN UINT32 Value,
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IN CONST CHAR8 *Description OPTIONAL
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);
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/**
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Returns TRUE if POST Codes are enabled.
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This function returns TRUE if the POST_CODE_PROPERTY_POST_CODE_ENABLED
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bit of PcdPostCodePropertyMask is set. Otherwise FALSE is returned.
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@retval TRUE The POST_CODE_PROPERTY_POST_CODE_ENABLED bit of
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PcdPostCodeProperyMask is set.
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@retval FALSE The POST_CODE_PROPERTY_POST_CODE_ENABLED bit of
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PcdPostCodeProperyMask is clear.
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**/
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BOOLEAN
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EFIAPI
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PostCodeEnabled (
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VOID
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);
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/**
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Returns TRUE if POST code descriptions are enabled.
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This function returns TRUE if the POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED
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bit of PcdPostCodePropertyMask is set. Otherwise FALSE is returned.
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@retval TRUE The POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED bit of
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PcdPostCodeProperyMask is set.
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@retval FALSE The POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED bit of
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PcdPostCodeProperyMask is clear.
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**/
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BOOLEAN
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EFIAPI
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PostCodeDescriptionEnabled (
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VOID
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);
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/**
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Sends a 32-bit value to a POST card.
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If POST codes are enabled in PcdPostCodeProperyMask, then call PostCode()
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passing in Value. Value is returned.
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@param Value The 32-bit value to write to the POST card.
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@return Value The 32-bit value to write to the POST card.
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**/
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#define POST_CODE(Value) PostCodeEnabled() ? PostCode(Value) : Value
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/**
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Sends a 32-bit value to a POST and associated ASCII string.
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If POST codes and POST code descriptions are enabled in
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PcdPostCodeProperyMask, then call PostCodeWithDescription() passing in
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Value and Description. If only POST codes are enabled, then call PostCode()
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passing in Value. Value is returned.
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@param Value The 32-bit value to write to the POST card.
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@param Description Pointer to an ASCII string that is a description of the
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POST code value.
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@return Value The 32-bit value to write to the POST card.
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**/
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#define POST_CODE_WITH_DESCRIPTION(Value,Description) \
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PostCodeEnabled() ? \
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(PostCodeDescriptionEnabled() ? \
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PostCodeWithDescription(Value,Description) : \
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PostCode(Value)) : \
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Value
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#endif
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