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/******************************************************************************
*
* Module Name : uthex - - Hex / ASCII support functions
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
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* Copyright ( C ) 2000 - 2015 , Intel Corp .
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* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
* 1. Redistributions of source code must retain the above copyright
* notice , this list of conditions , and the following disclaimer ,
* without modification .
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the " NO WARRANTY " disclaimer below
* ( " Disclaimer " ) and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution .
* 3. Neither the names of the above - listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission .
*
* Alternatively , this software may be distributed under the terms of the
* GNU General Public License ( " GPL " ) version 2 as published by the Free
* Software Foundation .
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* " AS IS " AND ANY EXPRESS OR IMPLIED WARRANTIES , INCLUDING , BUT NOT
* LIMITED TO , THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED . IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL , EXEMPLARY , OR CONSEQUENTIAL
* DAMAGES ( INCLUDING , BUT NOT LIMITED TO , PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES ; LOSS OF USE , DATA , OR PROFITS ; OR BUSINESS INTERRUPTION )
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY , WHETHER IN CONTRACT ,
* STRICT LIABILITY , OR TORT ( INCLUDING NEGLIGENCE OR OTHERWISE ) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE , EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES .
*/
# include <acpi/acpi.h>
# include "accommon.h"
# define _COMPONENT ACPI_COMPILER
ACPI_MODULE_NAME ( " uthex " )
/* Hex to ASCII conversion table */
static char acpi_gbl_hex_to_ascii [ ] = {
' 0 ' , ' 1 ' , ' 2 ' , ' 3 ' , ' 4 ' , ' 5 ' , ' 6 ' , ' 7 ' , ' 8 ' , ' 9 ' , ' A ' , ' B ' , ' C ' , ' D ' ,
' E ' , ' F '
} ;
/*******************************************************************************
*
* FUNCTION : acpi_ut_hex_to_ascii_char
*
* PARAMETERS : integer - Contains the hex digit
* position - bit position of the digit within the
* integer ( multiple of 4 )
*
* RETURN : The converted Ascii character
*
* DESCRIPTION : Convert a hex digit to an Ascii character
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
char acpi_ut_hex_to_ascii_char ( u64 integer , u32 position )
{
return ( acpi_gbl_hex_to_ascii [ ( integer > > position ) & 0xF ] ) ;
}
/*******************************************************************************
*
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* FUNCTION : acpi_ut_ascii_char_to_hex
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*
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* PARAMETERS : hex_char - Hex character in Ascii
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*
* RETURN : The binary value of the ascii / hex character
*
* DESCRIPTION : Perform ascii - to - hex translation
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
u8 acpi_ut_ascii_char_to_hex ( int hex_char )
{
if ( hex_char < = 0x39 ) {
return ( ( u8 ) ( hex_char - 0x30 ) ) ;
}
if ( hex_char < = 0x46 ) {
return ( ( u8 ) ( hex_char - 0x37 ) ) ;
}
return ( ( u8 ) ( hex_char - 0x57 ) ) ;
}
