 9560b6dea8
			
		
	
	
		9560b6dea8
		
	
	
	
	
		
			
			- 99% of the code is Intel's ACPICA. The license is compliant with BSD and GNU and virtually all systems that use ACPI use this code, For instance it is part of the Linux kernel. - The only minix specific files are acpi.c osminixxf.c platform/acminix.h and include/minix/acpi.h - At the moment the driver does not register interrupt hooks which I believe is mainly for handling PnP, events like "battery level is low" and power management. Should not be difficult to add it if need be. - The interface to the outside world is virtually non-existent except a trivial message based service for PCI driver to query which device is connected to what IRQ line. This will evolve as more components start using this driver. VM, Scheduler and IOMMU are the possible users right now. - because of dependency on a native 64bit (long long, part of c99) it is compiled only with a gnu-like compilers which in case of Minix includes gcc llvm-gcc and clang
		
			
				
	
	
		
			962 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			962 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /******************************************************************************
 | |
|  *
 | |
|  * Module Name: cmclib - Local implementation of C library functions
 | |
|  *
 | |
|  *****************************************************************************/
 | |
| 
 | |
| /******************************************************************************
 | |
|  *
 | |
|  * 1. Copyright Notice
 | |
|  *
 | |
|  * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
 | |
|  * All rights reserved.
 | |
|  *
 | |
|  * 2. License
 | |
|  *
 | |
|  * 2.1. This is your license from Intel Corp. under its intellectual property
 | |
|  * rights.  You may have additional license terms from the party that provided
 | |
|  * you this software, covering your right to use that party's intellectual
 | |
|  * property rights.
 | |
|  *
 | |
|  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
 | |
|  * copy of the source code appearing in this file ("Covered Code") an
 | |
|  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
 | |
|  * base code distributed originally by Intel ("Original Intel Code") to copy,
 | |
|  * make derivatives, distribute, use and display any portion of the Covered
 | |
|  * Code in any form, with the right to sublicense such rights; and
 | |
|  *
 | |
|  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
 | |
|  * license (with the right to sublicense), under only those claims of Intel
 | |
|  * patents that are infringed by the Original Intel Code, to make, use, sell,
 | |
|  * offer to sell, and import the Covered Code and derivative works thereof
 | |
|  * solely to the minimum extent necessary to exercise the above copyright
 | |
|  * license, and in no event shall the patent license extend to any additions
 | |
|  * to or modifications of the Original Intel Code.  No other license or right
 | |
|  * is granted directly or by implication, estoppel or otherwise;
 | |
|  *
 | |
|  * The above copyright and patent license is granted only if the following
 | |
|  * conditions are met:
 | |
|  *
 | |
|  * 3. Conditions
 | |
|  *
 | |
|  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
 | |
|  * Redistribution of source code of any substantial portion of the Covered
 | |
|  * Code or modification with rights to further distribute source must include
 | |
|  * the above Copyright Notice, the above License, this list of Conditions,
 | |
|  * and the following Disclaimer and Export Compliance provision.  In addition,
 | |
|  * Licensee must cause all Covered Code to which Licensee contributes to
 | |
|  * contain a file documenting the changes Licensee made to create that Covered
 | |
|  * Code and the date of any change.  Licensee must include in that file the
 | |
|  * documentation of any changes made by any predecessor Licensee.  Licensee
 | |
|  * must include a prominent statement that the modification is derived,
 | |
|  * directly or indirectly, from Original Intel Code.
 | |
|  *
 | |
|  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
 | |
|  * Redistribution of source code of any substantial portion of the Covered
 | |
|  * Code or modification without rights to further distribute source must
 | |
|  * include the following Disclaimer and Export Compliance provision in the
 | |
|  * documentation and/or other materials provided with distribution.  In
 | |
|  * addition, Licensee may not authorize further sublicense of source of any
 | |
|  * portion of the Covered Code, and must include terms to the effect that the
 | |
|  * license from Licensee to its licensee is limited to the intellectual
 | |
|  * property embodied in the software Licensee provides to its licensee, and
 | |
|  * not to intellectual property embodied in modifications its licensee may
 | |
|  * make.
 | |
|  *
 | |
|  * 3.3. Redistribution of Executable. Redistribution in executable form of any
 | |
|  * substantial portion of the Covered Code or modification must reproduce the
 | |
|  * above Copyright Notice, and the following Disclaimer and Export Compliance
 | |
|  * provision in the documentation and/or other materials provided with the
 | |
|  * distribution.
 | |
|  *
 | |
|  * 3.4. Intel retains all right, title, and interest in and to the Original
 | |
|  * Intel Code.
 | |
|  *
 | |
|  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
 | |
|  * Intel shall be used in advertising or otherwise to promote the sale, use or
 | |
|  * other dealings in products derived from or relating to the Covered Code
 | |
|  * without prior written authorization from Intel.
 | |
|  *
 | |
|  * 4. Disclaimer and Export Compliance
 | |
|  *
 | |
|  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
 | |
|  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
 | |
|  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
 | |
|  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
 | |
|  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
 | |
|  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
 | |
|  * PARTICULAR PURPOSE.
 | |
|  *
 | |
|  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
 | |
|  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
 | |
|  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
 | |
|  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
 | |
|  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
 | |
|  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
 | |
|  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
 | |
|  * LIMITED REMEDY.
 | |
|  *
 | |
|  * 4.3. Licensee shall not export, either directly or indirectly, any of this
 | |
|  * software or system incorporating such software without first obtaining any
 | |
|  * required license or other approval from the U. S. Department of Commerce or
 | |
|  * any other agency or department of the United States Government.  In the
 | |
|  * event Licensee exports any such software from the United States or
 | |
|  * re-exports any such software from a foreign destination, Licensee shall
 | |
|  * ensure that the distribution and export/re-export of the software is in
 | |
|  * compliance with all laws, regulations, orders, or other restrictions of the
 | |
|  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 | |
|  * any of its subsidiaries will export/re-export any technical data, process,
 | |
|  * software, or service, directly or indirectly, to any country for which the
 | |
|  * United States government or any agency thereof requires an export license,
 | |
|  * other governmental approval, or letter of assurance, without first obtaining
 | |
|  * such license, approval or letter.
 | |
|  *
 | |
|  *****************************************************************************/
 | |
| 
 | |
| 
 | |
| #define __CMCLIB_C__
 | |
| 
 | |
| #include "acpi.h"
 | |
| #include "accommon.h"
 | |
| 
 | |
| /*
 | |
|  * These implementations of standard C Library routines can optionally be
 | |
|  * used if a C library is not available.  In general, they are less efficient
 | |
|  * than an inline or assembly implementation
 | |
|  */
 | |
| 
 | |
| #define _COMPONENT          ACPI_UTILITIES
 | |
|         ACPI_MODULE_NAME    ("cmclib")
 | |
| 
 | |
| 
 | |
| #ifndef ACPI_USE_SYSTEM_CLIBRARY
 | |
| 
 | |
| #define NEGATIVE    1
 | |
| #define POSITIVE    0
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtMemcmp (memcmp)
 | |
|  *
 | |
|  * PARAMETERS:  Buffer1         - First Buffer
 | |
|  *              Buffer2         - Second Buffer
 | |
|  *              Count           - Maximum # of bytes to compare
 | |
|  *
 | |
|  * RETURN:      Index where Buffers mismatched, or 0 if Buffers matched
 | |
|  *
 | |
|  * DESCRIPTION: Compare two Buffers, with a maximum length
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| int
 | |
| AcpiUtMemcmp (
 | |
|     const char              *Buffer1,
 | |
|     const char              *Buffer2,
 | |
|     ACPI_SIZE               Count)
 | |
| {
 | |
| 
 | |
|     for ( ; Count-- && (*Buffer1 == *Buffer2); Buffer1++, Buffer2++)
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     return ((Count == ACPI_SIZE_MAX) ? 0 : ((unsigned char) *Buffer1 -
 | |
|         (unsigned char) *Buffer2));
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtMemcpy (memcpy)
 | |
|  *
 | |
|  * PARAMETERS:  Dest        - Target of the copy
 | |
|  *              Src         - Source buffer to copy
 | |
|  *              Count       - Number of bytes to copy
 | |
|  *
 | |
|  * RETURN:      Dest
 | |
|  *
 | |
|  * DESCRIPTION: Copy arbitrary bytes of memory
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| void *
 | |
| AcpiUtMemcpy (
 | |
|     void                    *Dest,
 | |
|     const void              *Src,
 | |
|     ACPI_SIZE               Count)
 | |
| {
 | |
|     char                    *New = (char *) Dest;
 | |
|     char                    *Old = (char *) Src;
 | |
| 
 | |
| 
 | |
|     while (Count)
 | |
|     {
 | |
|         *New = *Old;
 | |
|         New++;
 | |
|         Old++;
 | |
|         Count--;
 | |
|     }
 | |
| 
 | |
|     return (Dest);
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtMemset (memset)
 | |
|  *
 | |
|  * PARAMETERS:  Dest        - Buffer to set
 | |
|  *              Value       - Value to set each byte of memory
 | |
|  *              Count       - Number of bytes to set
 | |
|  *
 | |
|  * RETURN:      Dest
 | |
|  *
 | |
|  * DESCRIPTION: Initialize a buffer to a known value.
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| void *
 | |
| AcpiUtMemset (
 | |
|     void                    *Dest,
 | |
|     UINT8                   Value,
 | |
|     ACPI_SIZE               Count)
 | |
| {
 | |
|     char                    *New = (char *) Dest;
 | |
| 
 | |
| 
 | |
|     while (Count)
 | |
|     {
 | |
|         *New = (char) Value;
 | |
|         New++;
 | |
|         Count--;
 | |
|     }
 | |
| 
 | |
|     return (Dest);
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtStrlen (strlen)
 | |
|  *
 | |
|  * PARAMETERS:  String              - Null terminated string
 | |
|  *
 | |
|  * RETURN:      Length
 | |
|  *
 | |
|  * DESCRIPTION: Returns the length of the input string
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| 
 | |
| ACPI_SIZE
 | |
| AcpiUtStrlen (
 | |
|     const char              *String)
 | |
| {
 | |
|     UINT32                  Length = 0;
 | |
| 
 | |
| 
 | |
|     /* Count the string until a null is encountered */
 | |
| 
 | |
|     while (*String)
 | |
|     {
 | |
|         Length++;
 | |
|         String++;
 | |
|     }
 | |
| 
 | |
|     return (Length);
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtStrcpy (strcpy)
 | |
|  *
 | |
|  * PARAMETERS:  DstString       - Target of the copy
 | |
|  *              SrcString       - The source string to copy
 | |
|  *
 | |
|  * RETURN:      DstString
 | |
|  *
 | |
|  * DESCRIPTION: Copy a null terminated string
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| char *
 | |
| AcpiUtStrcpy (
 | |
|     char                    *DstString,
 | |
|     const char              *SrcString)
 | |
| {
 | |
|     char                    *String = DstString;
 | |
| 
 | |
| 
 | |
|     /* Move bytes brute force */
 | |
| 
 | |
|     while (*SrcString)
 | |
|     {
 | |
|         *String = *SrcString;
 | |
| 
 | |
|         String++;
 | |
|         SrcString++;
 | |
|     }
 | |
| 
 | |
|     /* Null terminate */
 | |
| 
 | |
|     *String = 0;
 | |
|     return (DstString);
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtStrncpy (strncpy)
 | |
|  *
 | |
|  * PARAMETERS:  DstString       - Target of the copy
 | |
|  *              SrcString       - The source string to copy
 | |
|  *              Count           - Maximum # of bytes to copy
 | |
|  *
 | |
|  * RETURN:      DstString
 | |
|  *
 | |
|  * DESCRIPTION: Copy a null terminated string, with a maximum length
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| char *
 | |
| AcpiUtStrncpy (
 | |
|     char                    *DstString,
 | |
|     const char              *SrcString,
 | |
|     ACPI_SIZE               Count)
 | |
| {
 | |
|     char                    *String = DstString;
 | |
| 
 | |
| 
 | |
|     /* Copy the string */
 | |
| 
 | |
|     for (String = DstString;
 | |
|         Count && (Count--, (*String++ = *SrcString++)); )
 | |
|     {;}
 | |
| 
 | |
|     /* Pad with nulls if necessary */
 | |
| 
 | |
|     while (Count--)
 | |
|     {
 | |
|         *String = 0;
 | |
|         String++;
 | |
|     }
 | |
| 
 | |
|     /* Return original pointer */
 | |
| 
 | |
|     return (DstString);
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtStrcmp (strcmp)
 | |
|  *
 | |
|  * PARAMETERS:  String1         - First string
 | |
|  *              String2         - Second string
 | |
|  *
 | |
|  * RETURN:      Index where strings mismatched, or 0 if strings matched
 | |
|  *
 | |
|  * DESCRIPTION: Compare two null terminated strings
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| int
 | |
| AcpiUtStrcmp (
 | |
|     const char              *String1,
 | |
|     const char              *String2)
 | |
| {
 | |
| 
 | |
| 
 | |
|     for ( ; (*String1 == *String2); String2++)
 | |
|     {
 | |
|         if (!*String1++)
 | |
|         {
 | |
|             return (0);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     return ((unsigned char) *String1 - (unsigned char) *String2);
 | |
| }
 | |
| 
 | |
| 
 | |
| #ifdef ACPI_FUTURE_IMPLEMENTATION
 | |
| /* Not used at this time */
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtStrchr (strchr)
 | |
|  *
 | |
|  * PARAMETERS:  String          - Search string
 | |
|  *              ch              - character to search for
 | |
|  *
 | |
|  * RETURN:      Ptr to char or NULL if not found
 | |
|  *
 | |
|  * DESCRIPTION: Search a string for a character
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| char *
 | |
| AcpiUtStrchr (
 | |
|     const char              *String,
 | |
|     int                     ch)
 | |
| {
 | |
| 
 | |
| 
 | |
|     for ( ; (*String); String++)
 | |
|     {
 | |
|         if ((*String) == (char) ch)
 | |
|         {
 | |
|             return ((char *) String);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     return (NULL);
 | |
| }
 | |
| #endif
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtStrncmp (strncmp)
 | |
|  *
 | |
|  * PARAMETERS:  String1         - First string
 | |
|  *              String2         - Second string
 | |
|  *              Count           - Maximum # of bytes to compare
 | |
|  *
 | |
|  * RETURN:      Index where strings mismatched, or 0 if strings matched
 | |
|  *
 | |
|  * DESCRIPTION: Compare two null terminated strings, with a maximum length
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| int
 | |
| AcpiUtStrncmp (
 | |
|     const char              *String1,
 | |
|     const char              *String2,
 | |
|     ACPI_SIZE               Count)
 | |
| {
 | |
| 
 | |
| 
 | |
|     for ( ; Count-- && (*String1 == *String2); String2++)
 | |
|     {
 | |
|         if (!*String1++)
 | |
|         {
 | |
|             return (0);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     return ((Count == ACPI_SIZE_MAX) ? 0 : ((unsigned char) *String1 -
 | |
|         (unsigned char) *String2));
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtStrcat (Strcat)
 | |
|  *
 | |
|  * PARAMETERS:  DstString       - Target of the copy
 | |
|  *              SrcString       - The source string to copy
 | |
|  *
 | |
|  * RETURN:      DstString
 | |
|  *
 | |
|  * DESCRIPTION: Append a null terminated string to a null terminated string
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| char *
 | |
| AcpiUtStrcat (
 | |
|     char                    *DstString,
 | |
|     const char              *SrcString)
 | |
| {
 | |
|     char                    *String;
 | |
| 
 | |
| 
 | |
|     /* Find end of the destination string */
 | |
| 
 | |
|     for (String = DstString; *String++; )
 | |
|     { ; }
 | |
| 
 | |
|     /* Concatenate the string */
 | |
| 
 | |
|     for (--String; (*String++ = *SrcString++); )
 | |
|     { ; }
 | |
| 
 | |
|     return (DstString);
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtStrncat (strncat)
 | |
|  *
 | |
|  * PARAMETERS:  DstString       - Target of the copy
 | |
|  *              SrcString       - The source string to copy
 | |
|  *              Count           - Maximum # of bytes to copy
 | |
|  *
 | |
|  * RETURN:      DstString
 | |
|  *
 | |
|  * DESCRIPTION: Append a null terminated string to a null terminated string,
 | |
|  *              with a maximum count.
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| char *
 | |
| AcpiUtStrncat (
 | |
|     char                    *DstString,
 | |
|     const char              *SrcString,
 | |
|     ACPI_SIZE               Count)
 | |
| {
 | |
|     char                    *String;
 | |
| 
 | |
| 
 | |
|     if (Count)
 | |
|     {
 | |
|         /* Find end of the destination string */
 | |
| 
 | |
|         for (String = DstString; *String++; )
 | |
|         { ; }
 | |
| 
 | |
|         /* Concatenate the string */
 | |
| 
 | |
|         for (--String; (*String++ = *SrcString++) && --Count; )
 | |
|         { ; }
 | |
| 
 | |
|         /* Null terminate if necessary */
 | |
| 
 | |
|         if (!Count)
 | |
|         {
 | |
|             *String = 0;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     return (DstString);
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtStrstr (strstr)
 | |
|  *
 | |
|  * PARAMETERS:  String1         - Target string
 | |
|  *              String2         - Substring to search for
 | |
|  *
 | |
|  * RETURN:      Where substring match starts, Null if no match found
 | |
|  *
 | |
|  * DESCRIPTION: Checks if String2 occurs in String1. This is not really a
 | |
|  *              full implementation of strstr, only sufficient for command
 | |
|  *              matching
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| char *
 | |
| AcpiUtStrstr (
 | |
|     char                    *String1,
 | |
|     char                    *String2)
 | |
| {
 | |
|     char                    *String;
 | |
| 
 | |
| 
 | |
|     if (AcpiUtStrlen (String2) > AcpiUtStrlen (String1))
 | |
|     {
 | |
|         return (NULL);
 | |
|     }
 | |
| 
 | |
|     /* Walk entire string, comparing the letters */
 | |
| 
 | |
|     for (String = String1; *String2; )
 | |
|     {
 | |
|         if (*String2 != *String)
 | |
|         {
 | |
|             return (NULL);
 | |
|         }
 | |
| 
 | |
|         String2++;
 | |
|         String++;
 | |
|     }
 | |
| 
 | |
|     return (String1);
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtStrtoul (strtoul)
 | |
|  *
 | |
|  * PARAMETERS:  String          - Null terminated string
 | |
|  *              Terminater      - Where a pointer to the terminating byte is
 | |
|  *                                returned
 | |
|  *              Base            - Radix of the string
 | |
|  *
 | |
|  * RETURN:      Converted value
 | |
|  *
 | |
|  * DESCRIPTION: Convert a string into a 32-bit unsigned value.
 | |
|  *              Note: use AcpiUtStrtoul64 for 64-bit integers.
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| UINT32
 | |
| AcpiUtStrtoul (
 | |
|     const char              *String,
 | |
|     char                    **Terminator,
 | |
|     UINT32                  Base)
 | |
| {
 | |
|     UINT32                  converted = 0;
 | |
|     UINT32                  index;
 | |
|     UINT32                  sign;
 | |
|     const char              *StringStart;
 | |
|     UINT32                  ReturnValue = 0;
 | |
|     ACPI_STATUS             Status = AE_OK;
 | |
| 
 | |
| 
 | |
|     /*
 | |
|      * Save the value of the pointer to the buffer's first
 | |
|      * character, save the current errno value, and then
 | |
|      * skip over any white space in the buffer:
 | |
|      */
 | |
|     StringStart = String;
 | |
|     while (ACPI_IS_SPACE (*String) || *String == '\t')
 | |
|     {
 | |
|         ++String;
 | |
|     }
 | |
| 
 | |
|     /*
 | |
|      * The buffer may contain an optional plus or minus sign.
 | |
|      * If it does, then skip over it but remember what is was:
 | |
|      */
 | |
|     if (*String == '-')
 | |
|     {
 | |
|         sign = NEGATIVE;
 | |
|         ++String;
 | |
|     }
 | |
|     else if (*String == '+')
 | |
|     {
 | |
|         ++String;
 | |
|         sign = POSITIVE;
 | |
|     }
 | |
|     else
 | |
|     {
 | |
|         sign = POSITIVE;
 | |
|     }
 | |
| 
 | |
|     /*
 | |
|      * If the input parameter Base is zero, then we need to
 | |
|      * determine if it is octal, decimal, or hexadecimal:
 | |
|      */
 | |
|     if (Base == 0)
 | |
|     {
 | |
|         if (*String == '0')
 | |
|         {
 | |
|             if (AcpiUtToLower (*(++String)) == 'x')
 | |
|             {
 | |
|                 Base = 16;
 | |
|                 ++String;
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 Base = 8;
 | |
|             }
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             Base = 10;
 | |
|         }
 | |
|     }
 | |
|     else if (Base < 2 || Base > 36)
 | |
|     {
 | |
|         /*
 | |
|          * The specified Base parameter is not in the domain of
 | |
|          * this function:
 | |
|          */
 | |
|         goto done;
 | |
|     }
 | |
| 
 | |
|     /*
 | |
|      * For octal and hexadecimal bases, skip over the leading
 | |
|      * 0 or 0x, if they are present.
 | |
|      */
 | |
|     if (Base == 8 && *String == '0')
 | |
|     {
 | |
|         String++;
 | |
|     }
 | |
| 
 | |
|     if (Base == 16 &&
 | |
|         *String == '0' &&
 | |
|         AcpiUtToLower (*(++String)) == 'x')
 | |
|     {
 | |
|         String++;
 | |
|     }
 | |
| 
 | |
|     /*
 | |
|      * Main loop: convert the string to an unsigned long:
 | |
|      */
 | |
|     while (*String)
 | |
|     {
 | |
|         if (ACPI_IS_DIGIT (*String))
 | |
|         {
 | |
|             index = (UINT32) ((UINT8) *String - '0');
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             index = (UINT32) AcpiUtToUpper (*String);
 | |
|             if (ACPI_IS_UPPER (index))
 | |
|             {
 | |
|                 index = index - 'A' + 10;
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 goto done;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         if (index >= Base)
 | |
|         {
 | |
|             goto done;
 | |
|         }
 | |
| 
 | |
|         /*
 | |
|          * Check to see if value is out of range:
 | |
|          */
 | |
| 
 | |
|         if (ReturnValue > ((ACPI_UINT32_MAX - (UINT32) index) /
 | |
|                             (UINT32) Base))
 | |
|         {
 | |
|             Status = AE_ERROR;
 | |
|             ReturnValue = 0;           /* reset */
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             ReturnValue *= Base;
 | |
|             ReturnValue += index;
 | |
|             converted = 1;
 | |
|         }
 | |
| 
 | |
|         ++String;
 | |
|     }
 | |
| 
 | |
| done:
 | |
|     /*
 | |
|      * If appropriate, update the caller's pointer to the next
 | |
|      * unconverted character in the buffer.
 | |
|      */
 | |
|     if (Terminator)
 | |
|     {
 | |
|         if (converted == 0 && ReturnValue == 0 && String != NULL)
 | |
|         {
 | |
|             *Terminator = (char *) StringStart;
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             *Terminator = (char *) String;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if (Status == AE_ERROR)
 | |
|     {
 | |
|         ReturnValue = ACPI_UINT32_MAX;
 | |
|     }
 | |
| 
 | |
|     /*
 | |
|      * If a minus sign was present, then "the conversion is negated":
 | |
|      */
 | |
|     if (sign == NEGATIVE)
 | |
|     {
 | |
|         ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1;
 | |
|     }
 | |
| 
 | |
|     return (ReturnValue);
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtToUpper (TOUPPER)
 | |
|  *
 | |
|  * PARAMETERS:  c           - Character to convert
 | |
|  *
 | |
|  * RETURN:      Converted character as an int
 | |
|  *
 | |
|  * DESCRIPTION: Convert character to uppercase
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| int
 | |
| AcpiUtToUpper (
 | |
|     int                     c)
 | |
| {
 | |
| 
 | |
|     return (ACPI_IS_LOWER(c) ? ((c)-0x20) : (c));
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiUtToLower (TOLOWER)
 | |
|  *
 | |
|  * PARAMETERS:  c           - Character to convert
 | |
|  *
 | |
|  * RETURN:      Converted character as an int
 | |
|  *
 | |
|  * DESCRIPTION: Convert character to lowercase
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| int
 | |
| AcpiUtToLower (
 | |
|     int                     c)
 | |
| {
 | |
| 
 | |
|     return (ACPI_IS_UPPER(c) ? ((c)+0x20) : (c));
 | |
| }
 | |
| 
 | |
| 
 | |
| /*******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    is* functions
 | |
|  *
 | |
|  * DESCRIPTION: is* functions use the ctype table below
 | |
|  *
 | |
|  ******************************************************************************/
 | |
| 
 | |
| const UINT8 _acpi_ctype[257] = {
 | |
|     _ACPI_CN,            /* 0x0      0.     */
 | |
|     _ACPI_CN,            /* 0x1      1.     */
 | |
|     _ACPI_CN,            /* 0x2      2.     */
 | |
|     _ACPI_CN,            /* 0x3      3.     */
 | |
|     _ACPI_CN,            /* 0x4      4.     */
 | |
|     _ACPI_CN,            /* 0x5      5.     */
 | |
|     _ACPI_CN,            /* 0x6      6.     */
 | |
|     _ACPI_CN,            /* 0x7      7.     */
 | |
|     _ACPI_CN,            /* 0x8      8.     */
 | |
|     _ACPI_CN|_ACPI_SP,   /* 0x9      9.     */
 | |
|     _ACPI_CN|_ACPI_SP,   /* 0xA     10.     */
 | |
|     _ACPI_CN|_ACPI_SP,   /* 0xB     11.     */
 | |
|     _ACPI_CN|_ACPI_SP,   /* 0xC     12.     */
 | |
|     _ACPI_CN|_ACPI_SP,   /* 0xD     13.     */
 | |
|     _ACPI_CN,            /* 0xE     14.     */
 | |
|     _ACPI_CN,            /* 0xF     15.     */
 | |
|     _ACPI_CN,            /* 0x10    16.     */
 | |
|     _ACPI_CN,            /* 0x11    17.     */
 | |
|     _ACPI_CN,            /* 0x12    18.     */
 | |
|     _ACPI_CN,            /* 0x13    19.     */
 | |
|     _ACPI_CN,            /* 0x14    20.     */
 | |
|     _ACPI_CN,            /* 0x15    21.     */
 | |
|     _ACPI_CN,            /* 0x16    22.     */
 | |
|     _ACPI_CN,            /* 0x17    23.     */
 | |
|     _ACPI_CN,            /* 0x18    24.     */
 | |
|     _ACPI_CN,            /* 0x19    25.     */
 | |
|     _ACPI_CN,            /* 0x1A    26.     */
 | |
|     _ACPI_CN,            /* 0x1B    27.     */
 | |
|     _ACPI_CN,            /* 0x1C    28.     */
 | |
|     _ACPI_CN,            /* 0x1D    29.     */
 | |
|     _ACPI_CN,            /* 0x1E    30.     */
 | |
|     _ACPI_CN,            /* 0x1F    31.     */
 | |
|     _ACPI_XS|_ACPI_SP,   /* 0x20    32. ' ' */
 | |
|     _ACPI_PU,            /* 0x21    33. '!' */
 | |
|     _ACPI_PU,            /* 0x22    34. '"' */
 | |
|     _ACPI_PU,            /* 0x23    35. '#' */
 | |
|     _ACPI_PU,            /* 0x24    36. '$' */
 | |
|     _ACPI_PU,            /* 0x25    37. '%' */
 | |
|     _ACPI_PU,            /* 0x26    38. '&' */
 | |
|     _ACPI_PU,            /* 0x27    39. ''' */
 | |
|     _ACPI_PU,            /* 0x28    40. '(' */
 | |
|     _ACPI_PU,            /* 0x29    41. ')' */
 | |
|     _ACPI_PU,            /* 0x2A    42. '*' */
 | |
|     _ACPI_PU,            /* 0x2B    43. '+' */
 | |
|     _ACPI_PU,            /* 0x2C    44. ',' */
 | |
|     _ACPI_PU,            /* 0x2D    45. '-' */
 | |
|     _ACPI_PU,            /* 0x2E    46. '.' */
 | |
|     _ACPI_PU,            /* 0x2F    47. '/' */
 | |
|     _ACPI_XD|_ACPI_DI,   /* 0x30    48. '0' */
 | |
|     _ACPI_XD|_ACPI_DI,   /* 0x31    49. '1' */
 | |
|     _ACPI_XD|_ACPI_DI,   /* 0x32    50. '2' */
 | |
|     _ACPI_XD|_ACPI_DI,   /* 0x33    51. '3' */
 | |
|     _ACPI_XD|_ACPI_DI,   /* 0x34    52. '4' */
 | |
|     _ACPI_XD|_ACPI_DI,   /* 0x35    53. '5' */
 | |
|     _ACPI_XD|_ACPI_DI,   /* 0x36    54. '6' */
 | |
|     _ACPI_XD|_ACPI_DI,   /* 0x37    55. '7' */
 | |
|     _ACPI_XD|_ACPI_DI,   /* 0x38    56. '8' */
 | |
|     _ACPI_XD|_ACPI_DI,   /* 0x39    57. '9' */
 | |
|     _ACPI_PU,            /* 0x3A    58. ':' */
 | |
|     _ACPI_PU,            /* 0x3B    59. ';' */
 | |
|     _ACPI_PU,            /* 0x3C    60. '<' */
 | |
|     _ACPI_PU,            /* 0x3D    61. '=' */
 | |
|     _ACPI_PU,            /* 0x3E    62. '>' */
 | |
|     _ACPI_PU,            /* 0x3F    63. '?' */
 | |
|     _ACPI_PU,            /* 0x40    64. '@' */
 | |
|     _ACPI_XD|_ACPI_UP,   /* 0x41    65. 'A' */
 | |
|     _ACPI_XD|_ACPI_UP,   /* 0x42    66. 'B' */
 | |
|     _ACPI_XD|_ACPI_UP,   /* 0x43    67. 'C' */
 | |
|     _ACPI_XD|_ACPI_UP,   /* 0x44    68. 'D' */
 | |
|     _ACPI_XD|_ACPI_UP,   /* 0x45    69. 'E' */
 | |
|     _ACPI_XD|_ACPI_UP,   /* 0x46    70. 'F' */
 | |
|     _ACPI_UP,            /* 0x47    71. 'G' */
 | |
|     _ACPI_UP,            /* 0x48    72. 'H' */
 | |
|     _ACPI_UP,            /* 0x49    73. 'I' */
 | |
|     _ACPI_UP,            /* 0x4A    74. 'J' */
 | |
|     _ACPI_UP,            /* 0x4B    75. 'K' */
 | |
|     _ACPI_UP,            /* 0x4C    76. 'L' */
 | |
|     _ACPI_UP,            /* 0x4D    77. 'M' */
 | |
|     _ACPI_UP,            /* 0x4E    78. 'N' */
 | |
|     _ACPI_UP,            /* 0x4F    79. 'O' */
 | |
|     _ACPI_UP,            /* 0x50    80. 'P' */
 | |
|     _ACPI_UP,            /* 0x51    81. 'Q' */
 | |
|     _ACPI_UP,            /* 0x52    82. 'R' */
 | |
|     _ACPI_UP,            /* 0x53    83. 'S' */
 | |
|     _ACPI_UP,            /* 0x54    84. 'T' */
 | |
|     _ACPI_UP,            /* 0x55    85. 'U' */
 | |
|     _ACPI_UP,            /* 0x56    86. 'V' */
 | |
|     _ACPI_UP,            /* 0x57    87. 'W' */
 | |
|     _ACPI_UP,            /* 0x58    88. 'X' */
 | |
|     _ACPI_UP,            /* 0x59    89. 'Y' */
 | |
|     _ACPI_UP,            /* 0x5A    90. 'Z' */
 | |
|     _ACPI_PU,            /* 0x5B    91. '[' */
 | |
|     _ACPI_PU,            /* 0x5C    92. '\' */
 | |
|     _ACPI_PU,            /* 0x5D    93. ']' */
 | |
|     _ACPI_PU,            /* 0x5E    94. '^' */
 | |
|     _ACPI_PU,            /* 0x5F    95. '_' */
 | |
|     _ACPI_PU,            /* 0x60    96. '`' */
 | |
|     _ACPI_XD|_ACPI_LO,   /* 0x61    97. 'a' */
 | |
|     _ACPI_XD|_ACPI_LO,   /* 0x62    98. 'b' */
 | |
|     _ACPI_XD|_ACPI_LO,   /* 0x63    99. 'c' */
 | |
|     _ACPI_XD|_ACPI_LO,   /* 0x64   100. 'd' */
 | |
|     _ACPI_XD|_ACPI_LO,   /* 0x65   101. 'e' */
 | |
|     _ACPI_XD|_ACPI_LO,   /* 0x66   102. 'f' */
 | |
|     _ACPI_LO,            /* 0x67   103. 'g' */
 | |
|     _ACPI_LO,            /* 0x68   104. 'h' */
 | |
|     _ACPI_LO,            /* 0x69   105. 'i' */
 | |
|     _ACPI_LO,            /* 0x6A   106. 'j' */
 | |
|     _ACPI_LO,            /* 0x6B   107. 'k' */
 | |
|     _ACPI_LO,            /* 0x6C   108. 'l' */
 | |
|     _ACPI_LO,            /* 0x6D   109. 'm' */
 | |
|     _ACPI_LO,            /* 0x6E   110. 'n' */
 | |
|     _ACPI_LO,            /* 0x6F   111. 'o' */
 | |
|     _ACPI_LO,            /* 0x70   112. 'p' */
 | |
|     _ACPI_LO,            /* 0x71   113. 'q' */
 | |
|     _ACPI_LO,            /* 0x72   114. 'r' */
 | |
|     _ACPI_LO,            /* 0x73   115. 's' */
 | |
|     _ACPI_LO,            /* 0x74   116. 't' */
 | |
|     _ACPI_LO,            /* 0x75   117. 'u' */
 | |
|     _ACPI_LO,            /* 0x76   118. 'v' */
 | |
|     _ACPI_LO,            /* 0x77   119. 'w' */
 | |
|     _ACPI_LO,            /* 0x78   120. 'x' */
 | |
|     _ACPI_LO,            /* 0x79   121. 'y' */
 | |
|     _ACPI_LO,            /* 0x7A   122. 'z' */
 | |
|     _ACPI_PU,            /* 0x7B   123. '{' */
 | |
|     _ACPI_PU,            /* 0x7C   124. '|' */
 | |
|     _ACPI_PU,            /* 0x7D   125. '}' */
 | |
|     _ACPI_PU,            /* 0x7E   126. '~' */
 | |
|     _ACPI_CN,            /* 0x7F   127.     */
 | |
| 
 | |
|     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0x80 to 0x8F    */
 | |
|     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0x90 to 0x9F    */
 | |
|     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0xA0 to 0xAF    */
 | |
|     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0xB0 to 0xBF    */
 | |
|     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0xC0 to 0xCF    */
 | |
|     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0xD0 to 0xDF    */
 | |
|     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0xE0 to 0xEF    */
 | |
|     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xF0 to 0x100   */
 | |
| };
 | |
| 
 | |
| 
 | |
| #endif /* ACPI_USE_SYSTEM_CLIBRARY */
 | |
| 
 |