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  1. /******************************************************************************
  2.  *
  3.  * Module Name: oswinxf - Windows OSL
  4.  *
  5.  *****************************************************************************/
  6.  
  7. /******************************************************************************
  8.  *
  9.  * 1. Copyright Notice
  10.  *
  11.  * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
  12.  * All rights reserved.
  13.  *
  14.  * 2. License
  15.  *
  16.  * 2.1. This is your license from Intel Corp. under its intellectual property
  17.  * rights.  You may have additional license terms from the party that provided
  18.  * you this software, covering your right to use that party's intellectual
  19.  * property rights.
  20.  *
  21.  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  22.  * copy of the source code appearing in this file ("Covered Code") an
  23.  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  24.  * base code distributed originally by Intel ("Original Intel Code") to copy,
  25.  * make derivatives, distribute, use and display any portion of the Covered
  26.  * Code in any form, with the right to sublicense such rights; and
  27.  *
  28.  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  29.  * license (with the right to sublicense), under only those claims of Intel
  30.  * patents that are infringed by the Original Intel Code, to make, use, sell,
  31.  * offer to sell, and import the Covered Code and derivative works thereof
  32.  * solely to the minimum extent necessary to exercise the above copyright
  33.  * license, and in no event shall the patent license extend to any additions
  34.  * to or modifications of the Original Intel Code.  No other license or right
  35.  * is granted directly or by implication, estoppel or otherwise;
  36.  *
  37.  * The above copyright and patent license is granted only if the following
  38.  * conditions are met:
  39.  *
  40.  * 3. Conditions
  41.  *
  42.  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  43.  * Redistribution of source code of any substantial portion of the Covered
  44.  * Code or modification with rights to further distribute source must include
  45.  * the above Copyright Notice, the above License, this list of Conditions,
  46.  * and the following Disclaimer and Export Compliance provision.  In addition,
  47.  * Licensee must cause all Covered Code to which Licensee contributes to
  48.  * contain a file documenting the changes Licensee made to create that Covered
  49.  * Code and the date of any change.  Licensee must include in that file the
  50.  * documentation of any changes made by any predecessor Licensee.  Licensee
  51.  * must include a prominent statement that the modification is derived,
  52.  * directly or indirectly, from Original Intel Code.
  53.  *
  54.  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  55.  * Redistribution of source code of any substantial portion of the Covered
  56.  * Code or modification without rights to further distribute source must
  57.  * include the following Disclaimer and Export Compliance provision in the
  58.  * documentation and/or other materials provided with distribution.  In
  59.  * addition, Licensee may not authorize further sublicense of source of any
  60.  * portion of the Covered Code, and must include terms to the effect that the
  61.  * license from Licensee to its licensee is limited to the intellectual
  62.  * property embodied in the software Licensee provides to its licensee, and
  63.  * not to intellectual property embodied in modifications its licensee may
  64.  * make.
  65.  *
  66.  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  67.  * substantial portion of the Covered Code or modification must reproduce the
  68.  * above Copyright Notice, and the following Disclaimer and Export Compliance
  69.  * provision in the documentation and/or other materials provided with the
  70.  * distribution.
  71.  *
  72.  * 3.4. Intel retains all right, title, and interest in and to the Original
  73.  * Intel Code.
  74.  *
  75.  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  76.  * Intel shall be used in advertising or otherwise to promote the sale, use or
  77.  * other dealings in products derived from or relating to the Covered Code
  78.  * without prior written authorization from Intel.
  79.  *
  80.  * 4. Disclaimer and Export Compliance
  81.  *
  82.  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  83.  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  84.  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
  85.  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
  86.  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
  87.  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  88.  * PARTICULAR PURPOSE.
  89.  *
  90.  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  91.  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  92.  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  93.  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  94.  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  95.  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
  96.  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  97.  * LIMITED REMEDY.
  98.  *
  99.  * 4.3. Licensee shall not export, either directly or indirectly, any of this
  100.  * software or system incorporating such software without first obtaining any
  101.  * required license or other approval from the U. S. Department of Commerce or
  102.  * any other agency or department of the United States Government.  In the
  103.  * event Licensee exports any such software from the United States or
  104.  * re-exports any such software from a foreign destination, Licensee shall
  105.  * ensure that the distribution and export/re-export of the software is in
  106.  * compliance with all laws, regulations, orders, or other restrictions of the
  107.  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
  108.  * any of its subsidiaries will export/re-export any technical data, process,
  109.  * software, or service, directly or indirectly, to any country for which the
  110.  * United States government or any agency thereof requires an export license,
  111.  * other governmental approval, or letter of assurance, without first obtaining
  112.  * such license, approval or letter.
  113.  *
  114.  *****************************************************************************/
  115.  
  116.  
  117. #ifdef WIN32
  118. #pragma warning(disable:4115)   /* warning C4115: named type definition in parentheses (caused by rpcasync.h> */
  119.  
  120. #include <windows.h>
  121. #include <winbase.h>
  122.  
  123. #elif WIN64
  124. #include <windowsx.h>
  125. #endif
  126.  
  127. #include <stdio.h>
  128. #include <stdlib.h>
  129. #include <stdarg.h>
  130. #include <process.h>
  131. #include <time.h>
  132.  
  133. #include "acpi.h"
  134. #include "accommon.h"
  135.  
  136. #define _COMPONENT          ACPI_OS_SERVICES
  137.         ACPI_MODULE_NAME    ("oswinxf")
  138.  
  139.  
  140. /* Semaphore information structure */
  141.  
  142. typedef struct acpi_os_semaphore_info
  143. {
  144.     UINT16                  MaxUnits;
  145.     UINT16                  CurrentUnits;
  146.     void                    *OsHandle;
  147.  
  148. } ACPI_OS_SEMAPHORE_INFO;
  149.  
  150. /* Need enough semaphores to run the large aslts suite */
  151.  
  152. #define ACPI_OS_MAX_SEMAPHORES  256
  153.  
  154. ACPI_OS_SEMAPHORE_INFO          AcpiGbl_Semaphores[ACPI_OS_MAX_SEMAPHORES];
  155.  
  156.  
  157. /* Upcalls to AcpiExec */
  158.  
  159. ACPI_PHYSICAL_ADDRESS
  160. AeLocalGetRootPointer (
  161.     void);
  162.  
  163. void
  164. AeTableOverride (
  165.     ACPI_TABLE_HEADER       *ExistingTable,
  166.     ACPI_TABLE_HEADER       **NewTable);
  167.  
  168. ACPI_TABLE_HEADER *
  169. OsGetTable (
  170.     char                    *Signature);
  171.  
  172.  
  173. extern FILE                 *AcpiGbl_DebugFile;
  174. extern BOOLEAN              AcpiGbl_DebugTimeout;
  175.  
  176. FILE                        *AcpiGbl_OutputFile;
  177. UINT64                      TimerFrequency;
  178. char                        TableName[ACPI_NAME_SIZE + 1];
  179.  
  180. #define ACPI_OS_DEBUG_TIMEOUT   30000 /* 30 seconds */
  181.  
  182.  
  183. /******************************************************************************
  184.  *
  185.  * FUNCTION:    AcpiOsTerminate
  186.  *
  187.  * PARAMETERS:  None
  188.  *
  189.  * RETURN:      None
  190.  *
  191.  * DESCRIPTION: Nothing to do for windows
  192.  *
  193.  *****************************************************************************/
  194.  
  195. ACPI_STATUS
  196. AcpiOsTerminate (void)
  197. {
  198.     return AE_OK;
  199. }
  200.  
  201.  
  202. /******************************************************************************
  203.  *
  204.  * FUNCTION:    AcpiOsInitialize
  205.  *
  206.  * PARAMETERS:  None
  207.  *
  208.  * RETURN:      Status
  209.  *
  210.  * DESCRIPTION: Init this OSL
  211.  *
  212.  *****************************************************************************/
  213.  
  214. ACPI_STATUS
  215. AcpiOsInitialize (void)
  216. {
  217.     LARGE_INTEGER           LocalTimerFrequency;
  218.  
  219.  
  220.     AcpiGbl_OutputFile = stdout;
  221.  
  222.     /* Clear the semaphore info array */
  223.  
  224.     memset (AcpiGbl_Semaphores, 0x00, sizeof (AcpiGbl_Semaphores));
  225.  
  226.     /* Get the timer frequency for use in AcpiOsGetTimer */
  227.  
  228.     TimerFrequency = 0;
  229.     if (QueryPerformanceFrequency (&LocalTimerFrequency))
  230.     {
  231.         /* Frequency is in ticks per second */
  232.  
  233.         TimerFrequency = LocalTimerFrequency.QuadPart;
  234.     }
  235.  
  236.     return AE_OK;
  237. }
  238.  
  239.  
  240. /******************************************************************************
  241.  *
  242.  * FUNCTION:    AcpiOsGetRootPointer
  243.  *
  244.  * PARAMETERS:  None
  245.  *
  246.  * RETURN:      RSDP physical address
  247.  *
  248.  * DESCRIPTION: Gets the root pointer (RSDP)
  249.  *
  250.  *****************************************************************************/
  251.  
  252. ACPI_PHYSICAL_ADDRESS
  253. AcpiOsGetRootPointer (
  254.     void)
  255. {
  256.  
  257.     return (AeLocalGetRootPointer ());
  258. }
  259.  
  260.  
  261. /******************************************************************************
  262.  *
  263.  * FUNCTION:    AcpiOsPredefinedOverride
  264.  *
  265.  * PARAMETERS:  InitVal     - Initial value of the predefined object
  266.  *              NewVal      - The new value for the object
  267.  *
  268.  * RETURN:      Status, pointer to value.  Null pointer returned if not
  269.  *              overriding.
  270.  *
  271.  * DESCRIPTION: Allow the OS to override predefined names
  272.  *
  273.  *****************************************************************************/
  274.  
  275. ACPI_STATUS
  276. AcpiOsPredefinedOverride (
  277.     const ACPI_PREDEFINED_NAMES *InitVal,
  278.     ACPI_STRING                 *NewVal)
  279. {
  280.  
  281.     if (!InitVal || !NewVal)
  282.     {
  283.         return (AE_BAD_PARAMETER);
  284.     }
  285.  
  286.     *NewVal = NULL;
  287.     return (AE_OK);
  288. }
  289.  
  290.  
  291. /******************************************************************************
  292.  *
  293.  * FUNCTION:    AcpiOsTableOverride
  294.  *
  295.  * PARAMETERS:  ExistingTable   - Header of current table (probably firmware)
  296.  *              NewTable        - Where an entire new table is returned.
  297.  *
  298.  * RETURN:      Status, pointer to new table.  Null pointer returned if no
  299.  *              table is available to override
  300.  *
  301.  * DESCRIPTION: Return a different version of a table if one is available
  302.  *
  303.  *****************************************************************************/
  304.  
  305. ACPI_STATUS
  306. AcpiOsTableOverride (
  307.     ACPI_TABLE_HEADER       *ExistingTable,
  308.     ACPI_TABLE_HEADER       **NewTable)
  309. {
  310.  
  311.     if (!ExistingTable || !NewTable)
  312.     {
  313.         return (AE_BAD_PARAMETER);
  314.     }
  315.  
  316.     *NewTable = NULL;
  317.  
  318.  
  319. #ifdef ACPI_EXEC_APP
  320.  
  321.     /* Call back up to AcpiExec */
  322.  
  323.     AeTableOverride (ExistingTable, NewTable);
  324. #endif
  325.  
  326.  
  327. #ifdef ACPI_ASL_COMPILER
  328.  
  329.     /* Attempt to get the table from the registry */
  330.  
  331.     /* Construct a null-terminated string from table signature */
  332.  
  333.     TableName[ACPI_NAME_SIZE] = 0;
  334.     ACPI_STRNCPY (TableName, ExistingTable->Signature, ACPI_NAME_SIZE);
  335.  
  336.     *NewTable = OsGetTable (TableName);
  337.     if (*NewTable)
  338.     {
  339.         AcpiOsPrintf ("Table [%s] obtained from registry, %u bytes\n",
  340.             TableName, (*NewTable)->Length);
  341.     }
  342.     else
  343.     {
  344.         AcpiOsPrintf ("Could not read table %s from registry\n", TableName);
  345.     }
  346. #endif
  347.  
  348.     return (AE_OK);
  349. }
  350.  
  351.  
  352. /******************************************************************************
  353.  *
  354.  * FUNCTION:    AcpiOsGetTimer
  355.  *
  356.  * PARAMETERS:  None
  357.  *
  358.  * RETURN:      Current ticks in 100-nanosecond units
  359.  *
  360.  * DESCRIPTION: Get the value of a system timer
  361.  *
  362.  ******************************************************************************/
  363.  
  364. UINT64
  365. AcpiOsGetTimer (
  366.     void)
  367. {
  368.     LARGE_INTEGER           Timer;
  369.  
  370.  
  371.     /* Attempt to use hi-granularity timer first */
  372.  
  373.     if (TimerFrequency &&
  374.         QueryPerformanceCounter (&Timer))
  375.     {
  376.         /* Convert to 100 nanosecond ticks */
  377.  
  378.         return ((UINT64) ((Timer.QuadPart * (UINT64) 10000000) / TimerFrequency));
  379.     }
  380.  
  381.     /* Fall back to the lo-granularity timer */
  382.  
  383.     else
  384.     {
  385.         /* Convert milliseconds to 100 nanosecond ticks */
  386.  
  387.         return ((UINT64) GetTickCount() * 10000);
  388.     }
  389. }
  390.  
  391.  
  392. /******************************************************************************
  393.  *
  394.  * FUNCTION:    AcpiOsReadable
  395.  *
  396.  * PARAMETERS:  Pointer             - Area to be verified
  397.  *              Length              - Size of area
  398.  *
  399.  * RETURN:      TRUE if readable for entire length
  400.  *
  401.  * DESCRIPTION: Verify that a pointer is valid for reading
  402.  *
  403.  *****************************************************************************/
  404.  
  405. BOOLEAN
  406. AcpiOsReadable (
  407.     void                    *Pointer,
  408.     ACPI_SIZE               Length)
  409. {
  410.  
  411.     return ((BOOLEAN) !IsBadReadPtr (Pointer, Length));
  412. }
  413.  
  414.  
  415. /******************************************************************************
  416.  *
  417.  * FUNCTION:    AcpiOsWritable
  418.  *
  419.  * PARAMETERS:  Pointer             - Area to be verified
  420.  *              Length              - Size of area
  421.  *
  422.  * RETURN:      TRUE if writable for entire length
  423.  *
  424.  * DESCRIPTION: Verify that a pointer is valid for writing
  425.  *
  426.  *****************************************************************************/
  427.  
  428. BOOLEAN
  429. AcpiOsWritable (
  430.     void                    *Pointer,
  431.     ACPI_SIZE               Length)
  432. {
  433.  
  434.     return ((BOOLEAN) !IsBadWritePtr (Pointer, Length));
  435. }
  436.  
  437.  
  438. /******************************************************************************
  439.  *
  440.  * FUNCTION:    AcpiOsRedirectOutput
  441.  *
  442.  * PARAMETERS:  Destination         - An open file handle/pointer
  443.  *
  444.  * RETURN:      None
  445.  *
  446.  * DESCRIPTION: Causes redirect of AcpiOsPrintf and AcpiOsVprintf
  447.  *
  448.  *****************************************************************************/
  449.  
  450. void
  451. AcpiOsRedirectOutput (
  452.     void                    *Destination)
  453. {
  454.  
  455.     AcpiGbl_OutputFile = Destination;
  456. }
  457.  
  458.  
  459. /******************************************************************************
  460.  *
  461.  * FUNCTION:    AcpiOsPrintf
  462.  *
  463.  * PARAMETERS:  fmt, ...            Standard printf format
  464.  *
  465.  * RETURN:      None
  466.  *
  467.  * DESCRIPTION: Formatted output
  468.  *
  469.  *****************************************************************************/
  470.  
  471. void ACPI_INTERNAL_VAR_XFACE
  472. AcpiOsPrintf (
  473.     const char              *Fmt,
  474.     ...)
  475. {
  476.     va_list                 Args;
  477.  
  478.  
  479.     va_start (Args, Fmt);
  480.  
  481.     AcpiOsVprintf (Fmt, Args);
  482.  
  483.     va_end (Args);
  484.     return;
  485. }
  486.  
  487.  
  488. /******************************************************************************
  489.  *
  490.  * FUNCTION:    AcpiOsVprintf
  491.  *
  492.  * PARAMETERS:  fmt                 Standard printf format
  493.  *              args                Argument list
  494.  *
  495.  * RETURN:      None
  496.  *
  497.  * DESCRIPTION: Formatted output with argument list pointer
  498.  *
  499.  *****************************************************************************/
  500.  
  501. void
  502. AcpiOsVprintf (
  503.     const char              *Fmt,
  504.     va_list                 Args)
  505. {
  506.     INT32                   Count = 0;
  507.     UINT8                   Flags;
  508.  
  509.  
  510.     Flags = AcpiGbl_DbOutputFlags;
  511.     if (Flags & ACPI_DB_REDIRECTABLE_OUTPUT)
  512.     {
  513.         /* Output is directable to either a file (if open) or the console */
  514.  
  515.         if (AcpiGbl_DebugFile)
  516.         {
  517.             /* Output file is open, send the output there */
  518.  
  519.             Count = vfprintf (AcpiGbl_DebugFile, Fmt, Args);
  520.         }
  521.         else
  522.         {
  523.             /* No redirection, send output to console (once only!) */
  524.  
  525.             Flags |= ACPI_DB_CONSOLE_OUTPUT;
  526.         }
  527.     }
  528.  
  529.     if (Flags & ACPI_DB_CONSOLE_OUTPUT)
  530.     {
  531.         Count = vfprintf (AcpiGbl_OutputFile, Fmt, Args);
  532.     }
  533.  
  534.     return;
  535. }
  536.  
  537.  
  538. /******************************************************************************
  539.  *
  540.  * FUNCTION:    AcpiOsGetLine
  541.  *
  542.  * PARAMETERS:  fmt                 Standard printf format
  543.  *              args                Argument list
  544.  *
  545.  * RETURN:      Actual bytes read
  546.  *
  547.  * DESCRIPTION: Formatted input with argument list pointer
  548.  *
  549.  *****************************************************************************/
  550.  
  551. UINT32
  552. AcpiOsGetLine (
  553.     char                    *Buffer)
  554. {
  555.     char                    Temp;
  556.     UINT32                  i;
  557.  
  558.  
  559.     for (i = 0; ; i++)
  560.     {
  561.         scanf ("%1c", &Temp);
  562.         if (!Temp || Temp == '\n')
  563.         {
  564.             break;
  565.         }
  566.  
  567.         Buffer [i] = Temp;
  568.     }
  569.  
  570.     /* Null terminate the buffer */
  571.  
  572.     Buffer [i] = 0;
  573.  
  574.     /* Return the number of bytes in the string */
  575.  
  576.     return (i);
  577. }
  578.  
  579.  
  580. /******************************************************************************
  581.  *
  582.  * FUNCTION:    AcpiOsMapMemory
  583.  *
  584.  * PARAMETERS:  where               Physical address of memory to be mapped
  585.  *              length              How much memory to map
  586.  *
  587.  * RETURN:      Pointer to mapped memory.  Null on error.
  588.  *
  589.  * DESCRIPTION: Map physical memory into caller's address space
  590.  *
  591.  *****************************************************************************/
  592.  
  593. void *
  594. AcpiOsMapMemory (
  595.     ACPI_PHYSICAL_ADDRESS   where,
  596.     ACPI_SIZE               length)
  597. {
  598.  
  599.     return (ACPI_TO_POINTER ((ACPI_SIZE) where));
  600. }
  601.  
  602.  
  603. /******************************************************************************
  604.  *
  605.  * FUNCTION:    AcpiOsUnmapMemory
  606.  *
  607.  * PARAMETERS:  where               Logical address of memory to be unmapped
  608.  *              length              How much memory to unmap
  609.  *
  610.  * RETURN:      None.
  611.  *
  612.  * DESCRIPTION: Delete a previously created mapping.  Where and Length must
  613.  *              correspond to a previous mapping exactly.
  614.  *
  615.  *****************************************************************************/
  616.  
  617. void
  618. AcpiOsUnmapMemory (
  619.     void                    *where,
  620.     ACPI_SIZE               length)
  621. {
  622.  
  623.     return;
  624. }
  625.  
  626.  
  627. /******************************************************************************
  628.  *
  629.  * FUNCTION:    AcpiOsAllocate
  630.  *
  631.  * PARAMETERS:  Size                Amount to allocate, in bytes
  632.  *
  633.  * RETURN:      Pointer to the new allocation.  Null on error.
  634.  *
  635.  * DESCRIPTION: Allocate memory.  Algorithm is dependent on the OS.
  636.  *
  637.  *****************************************************************************/
  638.  
  639. void *
  640. AcpiOsAllocate (
  641.     ACPI_SIZE               size)
  642. {
  643.     void                    *Mem;
  644.  
  645.  
  646.     Mem = (void *) malloc ((size_t) size);
  647.  
  648.     return Mem;
  649. }
  650.  
  651.  
  652. /******************************************************************************
  653.  *
  654.  * FUNCTION:    AcpiOsFree
  655.  *
  656.  * PARAMETERS:  mem                 Pointer to previously allocated memory
  657.  *
  658.  * RETURN:      None.
  659.  *
  660.  * DESCRIPTION: Free memory allocated via AcpiOsAllocate
  661.  *
  662.  *****************************************************************************/
  663.  
  664. void
  665. AcpiOsFree (
  666.     void                    *Mem)
  667. {
  668.  
  669.     free (Mem);
  670. }
  671.  
  672.  
  673. /******************************************************************************
  674.  *
  675.  * FUNCTION:    AcpiOsCreateSemaphore
  676.  *
  677.  * PARAMETERS:  MaxUnits            - Maximum units that can be sent
  678.  *              InitialUnits        - Units to be assigned to the new semaphore
  679.  *              OutHandle           - Where a handle will be returned
  680.  *
  681.  * RETURN:      Status
  682.  *
  683.  * DESCRIPTION: Create an OS semaphore
  684.  *
  685.  *****************************************************************************/
  686.  
  687. ACPI_STATUS
  688. AcpiOsCreateSemaphore (
  689.     UINT32              MaxUnits,
  690.     UINT32              InitialUnits,
  691.     ACPI_SEMAPHORE      *OutHandle)
  692. {
  693. #ifdef _MULTI_THREADED
  694.     void                *Mutex;
  695.     UINT32              i;
  696.  
  697.     ACPI_FUNCTION_NAME (OsCreateSemaphore);
  698. #endif
  699.  
  700.  
  701.     if (MaxUnits == ACPI_UINT32_MAX)
  702.     {
  703.         MaxUnits = 255;
  704.     }
  705.  
  706.     if (InitialUnits == ACPI_UINT32_MAX)
  707.     {
  708.         InitialUnits = MaxUnits;
  709.     }
  710.  
  711.     if (InitialUnits > MaxUnits)
  712.     {
  713.         return AE_BAD_PARAMETER;
  714.     }
  715.  
  716. #ifdef _MULTI_THREADED
  717.  
  718.     /* Find an empty slot */
  719.  
  720.     for (i = 0; i < ACPI_OS_MAX_SEMAPHORES; i++)
  721.     {
  722.         if (!AcpiGbl_Semaphores[i].OsHandle)
  723.         {
  724.             break;
  725.         }
  726.     }
  727.     if (i >= ACPI_OS_MAX_SEMAPHORES)
  728.     {
  729.         ACPI_EXCEPTION ((AE_INFO, AE_LIMIT,
  730.             "Reached max semaphores (%u), could not create", ACPI_OS_MAX_SEMAPHORES));
  731.         return AE_LIMIT;
  732.     }
  733.  
  734.     /* Create an OS semaphore */
  735.  
  736.     Mutex = CreateSemaphore (NULL, InitialUnits, MaxUnits, NULL);
  737.     if (!Mutex)
  738.     {
  739.         ACPI_ERROR ((AE_INFO, "Could not create semaphore"));
  740.         return AE_NO_MEMORY;
  741.     }
  742.  
  743.     AcpiGbl_Semaphores[i].MaxUnits = (UINT16) MaxUnits;
  744.     AcpiGbl_Semaphores[i].CurrentUnits = (UINT16) InitialUnits;
  745.     AcpiGbl_Semaphores[i].OsHandle = Mutex;
  746.  
  747.     ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Handle=%u, Max=%u, Current=%u, OsHandle=%p\n",
  748.             i, MaxUnits, InitialUnits, Mutex));
  749.  
  750.     *OutHandle = (void *) i;
  751. #endif
  752.  
  753.     return AE_OK;
  754. }
  755.  
  756.  
  757. /******************************************************************************
  758.  *
  759.  * FUNCTION:    AcpiOsDeleteSemaphore
  760.  *
  761.  * PARAMETERS:  Handle              - Handle returned by AcpiOsCreateSemaphore
  762.  *
  763.  * RETURN:      Status
  764.  *
  765.  * DESCRIPTION: Delete an OS semaphore
  766.  *
  767.  *****************************************************************************/
  768.  
  769. ACPI_STATUS
  770. AcpiOsDeleteSemaphore (
  771.     ACPI_SEMAPHORE      Handle)
  772. {
  773.     UINT32              Index = (UINT32) Handle;
  774.  
  775.  
  776.     if ((Index >= ACPI_OS_MAX_SEMAPHORES) ||
  777.         !AcpiGbl_Semaphores[Index].OsHandle)
  778.     {
  779.         return AE_BAD_PARAMETER;
  780.     }
  781.  
  782.  
  783. #ifdef _MULTI_THREADED
  784.  
  785.     CloseHandle (AcpiGbl_Semaphores[Index].OsHandle);
  786.     AcpiGbl_Semaphores[Index].OsHandle = NULL;
  787. #endif
  788.  
  789.     return AE_OK;
  790. }
  791.  
  792.  
  793. /******************************************************************************
  794.  *
  795.  * FUNCTION:    AcpiOsWaitSemaphore
  796.  *
  797.  * PARAMETERS:  Handle              - Handle returned by AcpiOsCreateSemaphore
  798.  *              Units               - How many units to wait for
  799.  *              Timeout             - How long to wait
  800.  *
  801.  * RETURN:      Status
  802.  *
  803.  * DESCRIPTION: Wait for units
  804.  *
  805.  *****************************************************************************/
  806.  
  807. ACPI_STATUS
  808. AcpiOsWaitSemaphore (
  809.     ACPI_SEMAPHORE      Handle,
  810.     UINT32              Units,
  811.     UINT16              Timeout)
  812. {
  813. #ifdef _MULTI_THREADED
  814.     UINT32              Index = (UINT32) Handle;
  815.     UINT32              WaitStatus;
  816.     UINT32              OsTimeout = Timeout;
  817.  
  818.  
  819.     ACPI_FUNCTION_ENTRY ();
  820.  
  821.  
  822.     if ((Index >= ACPI_OS_MAX_SEMAPHORES) ||
  823.         !AcpiGbl_Semaphores[Index].OsHandle)
  824.     {
  825.         return AE_BAD_PARAMETER;
  826.     }
  827.  
  828.     if (Units > 1)
  829.     {
  830.         printf ("WaitSemaphore: Attempt to receive %u units\n", Units);
  831.         return AE_NOT_IMPLEMENTED;
  832.     }
  833.  
  834.     if (Timeout == ACPI_WAIT_FOREVER)
  835.     {
  836.         OsTimeout = INFINITE;
  837.         if (AcpiGbl_DebugTimeout)
  838.         {
  839.             /* The debug timeout will prevent hang conditions */
  840.  
  841.             OsTimeout = ACPI_OS_DEBUG_TIMEOUT;
  842.         }
  843.     }
  844.     else
  845.     {
  846.         /* Add 10ms to account for clock tick granularity */
  847.  
  848.         OsTimeout += 10;
  849.     }
  850.  
  851.     WaitStatus = WaitForSingleObject (AcpiGbl_Semaphores[Index].OsHandle, OsTimeout);
  852.     if (WaitStatus == WAIT_TIMEOUT)
  853.     {
  854.         if (AcpiGbl_DebugTimeout)
  855.         {
  856.             ACPI_EXCEPTION ((AE_INFO, AE_TIME,
  857.                 "Debug timeout on semaphore 0x%04X (%ums)\n",
  858.                 Index, ACPI_OS_DEBUG_TIMEOUT));
  859.         }
  860.         return AE_TIME;
  861.     }
  862.  
  863.     if (AcpiGbl_Semaphores[Index].CurrentUnits == 0)
  864.     {
  865.         ACPI_ERROR ((AE_INFO, "%s - No unit received. Timeout 0x%X, OS_Status 0x%X",
  866.             AcpiUtGetMutexName (Index), Timeout, WaitStatus));
  867.  
  868.         return AE_OK;
  869.     }
  870.  
  871.     AcpiGbl_Semaphores[Index].CurrentUnits--;
  872. #endif
  873.  
  874.     return AE_OK;
  875. }
  876.  
  877.  
  878. /******************************************************************************
  879.  *
  880.  * FUNCTION:    AcpiOsSignalSemaphore
  881.  *
  882.  * PARAMETERS:  Handle              - Handle returned by AcpiOsCreateSemaphore
  883.  *              Units               - Number of units to send
  884.  *
  885.  * RETURN:      Status
  886.  *
  887.  * DESCRIPTION: Send units
  888.  *
  889.  *****************************************************************************/
  890.  
  891. ACPI_STATUS
  892. AcpiOsSignalSemaphore (
  893.     ACPI_SEMAPHORE      Handle,
  894.     UINT32              Units)
  895. {
  896. #ifdef _MULTI_THREADED
  897.  
  898.     UINT32              Index = (UINT32) Handle;
  899.  
  900.  
  901.     ACPI_FUNCTION_ENTRY ();
  902.  
  903.  
  904.     if (Index >= ACPI_OS_MAX_SEMAPHORES)
  905.     {
  906.         printf ("SignalSemaphore: Index/Handle out of range: %2.2X\n", Index);
  907.         return AE_BAD_PARAMETER;
  908.     }
  909.  
  910.     if (!AcpiGbl_Semaphores[Index].OsHandle)
  911.     {
  912.         printf ("SignalSemaphore: Null OS handle, Index %2.2X\n", Index);
  913.         return AE_BAD_PARAMETER;
  914.     }
  915.  
  916.     if (Units > 1)
  917.     {
  918.         printf ("SignalSemaphore: Attempt to signal %u units, Index %2.2X\n", Units, Index);
  919.         return AE_NOT_IMPLEMENTED;
  920.     }
  921.  
  922.     if ((AcpiGbl_Semaphores[Index].CurrentUnits + 1) >
  923.         AcpiGbl_Semaphores[Index].MaxUnits)
  924.     {
  925.         ACPI_ERROR ((AE_INFO,
  926.             "Oversignalled semaphore[%u]! Current %u Max %u",
  927.             Index, AcpiGbl_Semaphores[Index].CurrentUnits,
  928.             AcpiGbl_Semaphores[Index].MaxUnits));
  929.  
  930.         return (AE_LIMIT);
  931.     }
  932.  
  933.     AcpiGbl_Semaphores[Index].CurrentUnits++;
  934.     ReleaseSemaphore (AcpiGbl_Semaphores[Index].OsHandle, Units, NULL);
  935.  
  936. #endif
  937.  
  938.     return (AE_OK);
  939. }
  940.  
  941.  
  942. /* Spinlock interfaces, just implement with a semaphore */
  943.  
  944. ACPI_STATUS
  945. AcpiOsCreateLock (
  946.     ACPI_SPINLOCK           *OutHandle)
  947. {
  948.     return (AcpiOsCreateSemaphore (1, 1, OutHandle));
  949. }
  950.  
  951. void
  952. AcpiOsDeleteLock (
  953.     ACPI_SPINLOCK           Handle)
  954. {
  955.     AcpiOsDeleteSemaphore (Handle);
  956. }
  957.  
  958. ACPI_CPU_FLAGS
  959. AcpiOsAcquireLock (
  960.     ACPI_SPINLOCK           Handle)
  961. {
  962.     AcpiOsWaitSemaphore (Handle, 1, 0xFFFF);
  963.     return (0);
  964. }
  965.  
  966. void
  967. AcpiOsReleaseLock (
  968.     ACPI_SPINLOCK           Handle,
  969.     ACPI_CPU_FLAGS          Flags)
  970. {
  971.     AcpiOsSignalSemaphore (Handle, 1);
  972. }
  973.  
  974.  
  975. #if ACPI_FUTURE_IMPLEMENTATION
  976.  
  977. /* Mutex interfaces, just implement with a semaphore */
  978.  
  979. ACPI_STATUS
  980. AcpiOsCreateMutex (
  981.     ACPI_MUTEX              *OutHandle)
  982. {
  983.     return (AcpiOsCreateSemaphore (1, 1, OutHandle));
  984. }
  985.  
  986. void
  987. AcpiOsDeleteMutex (
  988.     ACPI_MUTEX              Handle)
  989. {
  990.     AcpiOsDeleteSemaphore (Handle);
  991. }
  992.  
  993. ACPI_STATUS
  994. AcpiOsAcquireMutex (
  995.     ACPI_MUTEX              Handle,
  996.     UINT16                  Timeout)
  997. {
  998.     AcpiOsWaitSemaphore (Handle, 1, Timeout);
  999.     return (0);
  1000. }
  1001.  
  1002. void
  1003. AcpiOsReleaseMutex (
  1004.     ACPI_MUTEX              Handle)
  1005. {
  1006.     AcpiOsSignalSemaphore (Handle, 1);
  1007. }
  1008. #endif
  1009.  
  1010.  
  1011. /******************************************************************************
  1012.  *
  1013.  * FUNCTION:    AcpiOsInstallInterruptHandler
  1014.  *
  1015.  * PARAMETERS:  InterruptNumber     Level handler should respond to.
  1016.  *              Isr                 Address of the ACPI interrupt handler
  1017.  *              ExceptPtr           Where status is returned
  1018.  *
  1019.  * RETURN:      Handle to the newly installed handler.
  1020.  *
  1021.  * DESCRIPTION: Install an interrupt handler.  Used to install the ACPI
  1022.  *              OS-independent handler.
  1023.  *
  1024.  *****************************************************************************/
  1025.  
  1026. UINT32
  1027. AcpiOsInstallInterruptHandler (
  1028.     UINT32                  InterruptNumber,
  1029.     ACPI_OSD_HANDLER        ServiceRoutine,
  1030.     void                    *Context)
  1031. {
  1032.  
  1033.     return AE_OK;
  1034. }
  1035.  
  1036.  
  1037. /******************************************************************************
  1038.  *
  1039.  * FUNCTION:    AcpiOsRemoveInterruptHandler
  1040.  *
  1041.  * PARAMETERS:  Handle              Returned when handler was installed
  1042.  *
  1043.  * RETURN:      Status
  1044.  *
  1045.  * DESCRIPTION: Uninstalls an interrupt handler.
  1046.  *
  1047.  *****************************************************************************/
  1048.  
  1049. ACPI_STATUS
  1050. AcpiOsRemoveInterruptHandler (
  1051.     UINT32                  InterruptNumber,
  1052.     ACPI_OSD_HANDLER        ServiceRoutine)
  1053. {
  1054.  
  1055.     return AE_OK;
  1056. }
  1057.  
  1058.  
  1059. /******************************************************************************
  1060.  *
  1061.  * FUNCTION:    AcpiOsGetThreadId
  1062.  *
  1063.  * PARAMETERS:  None
  1064.  *
  1065.  * RETURN:      Id of the running thread
  1066.  *
  1067.  * DESCRIPTION: Get the Id of the current (running) thread
  1068.  *
  1069.  *****************************************************************************/
  1070.  
  1071. ACPI_THREAD_ID
  1072. AcpiOsGetThreadId (
  1073.     void)
  1074. {
  1075.     DWORD                   ThreadId;
  1076.  
  1077.     /* Ensure ID is never 0 */
  1078.  
  1079.     ThreadId = GetCurrentThreadId ();
  1080.     return (ThreadId + 1);
  1081. }
  1082.  
  1083.  
  1084. /******************************************************************************
  1085.  *
  1086.  * FUNCTION:    AcpiOsExecute
  1087.  *
  1088.  * PARAMETERS:  Type            - Type of execution
  1089.  *              Function        - Address of the function to execute
  1090.  *              Context         - Passed as a parameter to the function
  1091.  *
  1092.  * RETURN:      Status
  1093.  *
  1094.  * DESCRIPTION: Execute a new thread
  1095.  *
  1096.  *****************************************************************************/
  1097.  
  1098. ACPI_STATUS
  1099. AcpiOsExecute (
  1100.     ACPI_EXECUTE_TYPE       Type,
  1101.     ACPI_OSD_EXEC_CALLBACK  Function,
  1102.     void                    *Context)
  1103. {
  1104.  
  1105. #ifdef _MULTI_THREADED
  1106.     _beginthread (Function, (unsigned) 0, Context);
  1107. #endif
  1108.  
  1109.     return 0;
  1110. }
  1111.  
  1112.  
  1113. /******************************************************************************
  1114.  *
  1115.  * FUNCTION:    AcpiOsStall
  1116.  *
  1117.  * PARAMETERS:  microseconds        To sleep
  1118.  *
  1119.  * RETURN:      Blocks until sleep is completed.
  1120.  *
  1121.  * DESCRIPTION: Sleep at microsecond granularity
  1122.  *
  1123.  *****************************************************************************/
  1124.  
  1125. void
  1126. AcpiOsStall (
  1127.     UINT32                  microseconds)
  1128. {
  1129.  
  1130.     Sleep ((microseconds / 1000) + 1);
  1131.     return;
  1132. }
  1133.  
  1134.  
  1135. /******************************************************************************
  1136.  *
  1137.  * FUNCTION:    AcpiOsSleep
  1138.  *
  1139.  * PARAMETERS:  milliseconds        To sleep
  1140.  *
  1141.  * RETURN:      Blocks until sleep is completed.
  1142.  *
  1143.  * DESCRIPTION: Sleep at millisecond granularity
  1144.  *
  1145.  *****************************************************************************/
  1146.  
  1147. void
  1148. AcpiOsSleep (
  1149.     UINT64                  milliseconds)
  1150. {
  1151.  
  1152.     /* Add 10ms to account for clock tick granularity */
  1153.  
  1154.     Sleep (((unsigned long) milliseconds) + 10);
  1155.     return;
  1156. }
  1157.  
  1158.  
  1159. /******************************************************************************
  1160.  *
  1161.  * FUNCTION:    AcpiOsValidateInterface
  1162.  *
  1163.  * PARAMETERS:  Interface           - Requested interface to be validated
  1164.  *
  1165.  * RETURN:      AE_OK if interface is supported, AE_SUPPORT otherwise
  1166.  *
  1167.  * DESCRIPTION: Match an interface string to the interfaces supported by the
  1168.  *              host. Strings originate from an AML call to the _OSI method.
  1169.  *
  1170.  *****************************************************************************/
  1171.  
  1172. ACPI_STATUS
  1173. AcpiOsValidateInterface (
  1174.     char                    *Interface)
  1175. {
  1176.  
  1177.     return (AE_SUPPORT);
  1178. }
  1179.  
  1180.  
  1181. /******************************************************************************
  1182.  *
  1183.  * FUNCTION:    AcpiOsReadPciConfiguration
  1184.  *
  1185.  * PARAMETERS:  PciId               Seg/Bus/Dev
  1186.  *              Register            Device Register
  1187.  *              Value               Buffer where value is placed
  1188.  *              Width               Number of bits
  1189.  *
  1190.  * RETURN:      Status
  1191.  *
  1192.  * DESCRIPTION: Read data from PCI configuration space
  1193.  *
  1194.  *****************************************************************************/
  1195.  
  1196. ACPI_STATUS
  1197. AcpiOsReadPciConfiguration (
  1198.     ACPI_PCI_ID             *PciId,
  1199.     UINT32                  Register,
  1200.     void                    *Value,
  1201.     UINT32                  Width)
  1202. {
  1203.  
  1204.     return (AE_OK);
  1205. }
  1206.  
  1207.  
  1208. /******************************************************************************
  1209.  *
  1210.  * FUNCTION:    AcpiOsWritePciConfiguration
  1211.  *
  1212.  * PARAMETERS:  PciId               Seg/Bus/Dev
  1213.  *              Register            Device Register
  1214.  *              Value               Value to be written
  1215.  *              Width               Number of bits
  1216.  *
  1217.  * RETURN:      Status.
  1218.  *
  1219.  * DESCRIPTION: Write data to PCI configuration space
  1220.  *
  1221.  *****************************************************************************/
  1222.  
  1223. ACPI_STATUS
  1224. AcpiOsWritePciConfiguration (
  1225.     ACPI_PCI_ID             *PciId,
  1226.     UINT32                  Register,
  1227.     UINT64                  Value,
  1228.     UINT32                  Width)
  1229. {
  1230.  
  1231.     return (AE_OK);
  1232. }
  1233.  
  1234. /* TEMPORARY STUB FUNCTION */
  1235. void
  1236. AcpiOsDerivePciId(
  1237.     ACPI_HANDLE             Device,
  1238.     ACPI_HANDLE             Region,
  1239.     ACPI_PCI_ID             **PciId)
  1240. {
  1241.  
  1242.     return;
  1243. }
  1244.  
  1245.  
  1246. /******************************************************************************
  1247.  *
  1248.  * FUNCTION:    AcpiOsReadPort
  1249.  *
  1250.  * PARAMETERS:  Address             Address of I/O port/register to read
  1251.  *              Value               Where value is placed
  1252.  *              Width               Number of bits
  1253.  *
  1254.  * RETURN:      Value read from port
  1255.  *
  1256.  * DESCRIPTION: Read data from an I/O port or register
  1257.  *
  1258.  *****************************************************************************/
  1259.  
  1260. ACPI_STATUS
  1261. AcpiOsReadPort (
  1262.     ACPI_IO_ADDRESS         Address,
  1263.     UINT32                  *Value,
  1264.     UINT32                  Width)
  1265. {
  1266.  
  1267.     switch (Width)
  1268.     {
  1269.     case 8:
  1270.         *Value = 0xFF;
  1271.         break;
  1272.  
  1273.     case 16:
  1274.         *Value = 0xFFFF;
  1275.         break;
  1276.  
  1277.     case 32:
  1278.         *Value = 0xFFFFFFFF;
  1279.         break;
  1280.  
  1281.     default:
  1282.         return (AE_BAD_PARAMETER);
  1283.     }
  1284.  
  1285.     return (AE_OK);
  1286. }
  1287.  
  1288.  
  1289. /******************************************************************************
  1290.  *
  1291.  * FUNCTION:    AcpiOsWritePort
  1292.  *
  1293.  * PARAMETERS:  Address             Address of I/O port/register to write
  1294.  *              Value               Value to write
  1295.  *              Width               Number of bits
  1296.  *
  1297.  * RETURN:      None
  1298.  *
  1299.  * DESCRIPTION: Write data to an I/O port or register
  1300.  *
  1301.  *****************************************************************************/
  1302.  
  1303. ACPI_STATUS
  1304. AcpiOsWritePort (
  1305.     ACPI_IO_ADDRESS         Address,
  1306.     UINT32                  Value,
  1307.     UINT32                  Width)
  1308. {
  1309.  
  1310.     return (AE_OK);
  1311. }
  1312.  
  1313.  
  1314. /******************************************************************************
  1315.  *
  1316.  * FUNCTION:    AcpiOsReadMemory
  1317.  *
  1318.  * PARAMETERS:  Address             Physical Memory Address to read
  1319.  *              Value               Where value is placed
  1320.  *              Width               Number of bits
  1321.  *
  1322.  * RETURN:      Value read from physical memory address.  Always returned
  1323.  *              as a 32-bit integer, regardless of the read width.
  1324.  *
  1325.  * DESCRIPTION: Read data from a physical memory address
  1326.  *
  1327.  *****************************************************************************/
  1328.  
  1329. ACPI_STATUS
  1330. AcpiOsReadMemory (
  1331.     ACPI_PHYSICAL_ADDRESS   Address,
  1332.     UINT32                  *Value,
  1333.     UINT32                  Width)
  1334. {
  1335.  
  1336.     switch (Width)
  1337.     {
  1338.     case 8:
  1339.     case 16:
  1340.     case 32:
  1341.         *Value = 0;
  1342.         break;
  1343.  
  1344.     default:
  1345.         return (AE_BAD_PARAMETER);
  1346.         break;
  1347.     }
  1348.  
  1349.     return (AE_OK);
  1350. }
  1351.  
  1352.  
  1353. /******************************************************************************
  1354.  *
  1355.  * FUNCTION:    AcpiOsWriteMemory
  1356.  *
  1357.  * PARAMETERS:  Address             Physical Memory Address to write
  1358.  *              Value               Value to write
  1359.  *              Width               Number of bits
  1360.  *
  1361.  * RETURN:      None
  1362.  *
  1363.  * DESCRIPTION: Write data to a physical memory address
  1364.  *
  1365.  *****************************************************************************/
  1366.  
  1367. ACPI_STATUS
  1368. AcpiOsWriteMemory (
  1369.     ACPI_PHYSICAL_ADDRESS   Address,
  1370.     UINT32                  Value,
  1371.     UINT32                  Width)
  1372. {
  1373.  
  1374.     return (AE_OK);
  1375. }
  1376.  
  1377.  
  1378. /******************************************************************************
  1379.  *
  1380.  * FUNCTION:    AcpiOsSignal
  1381.  *
  1382.  * PARAMETERS:  Function            ACPI CA signal function code
  1383.  *              Info                Pointer to function-dependent structure
  1384.  *
  1385.  * RETURN:      Status
  1386.  *
  1387.  * DESCRIPTION: Miscellaneous functions. Example implementation only.
  1388.  *
  1389.  *****************************************************************************/
  1390.  
  1391. ACPI_STATUS
  1392. AcpiOsSignal (
  1393.     UINT32                  Function,
  1394.     void                    *Info)
  1395. {
  1396.  
  1397.     switch (Function)
  1398.     {
  1399.     case ACPI_SIGNAL_FATAL:
  1400.         break;
  1401.  
  1402.     case ACPI_SIGNAL_BREAKPOINT:
  1403.         break;
  1404.  
  1405.     default:
  1406.         break;
  1407.     }
  1408.  
  1409.     return (AE_OK);
  1410. }
  1411.  
  1412.  
  1413. /******************************************************************************
  1414.  *
  1415.  * FUNCTION:    Local cache interfaces
  1416.  *
  1417.  * DESCRIPTION: Implements cache interfaces via malloc/free for testing
  1418.  *              purposes only.
  1419.  *
  1420.  *****************************************************************************/
  1421.  
  1422. #ifndef ACPI_USE_LOCAL_CACHE
  1423.  
  1424. ACPI_STATUS
  1425. AcpiOsCreateCache (
  1426.     char                    *CacheName,
  1427.     UINT16                  ObjectSize,
  1428.     UINT16                  MaxDepth,
  1429.     ACPI_CACHE_T            **ReturnCache)
  1430. {
  1431.     ACPI_MEMORY_LIST        *NewCache;
  1432.  
  1433.  
  1434.     NewCache = malloc (sizeof (ACPI_MEMORY_LIST));
  1435.     if (!NewCache)
  1436.     {
  1437.         return (AE_NO_MEMORY);
  1438.     }
  1439.  
  1440.     memset (NewCache, 0, sizeof (ACPI_MEMORY_LIST));
  1441.     NewCache->LinkOffset = 8;
  1442.     NewCache->ListName = CacheName;
  1443.     NewCache->ObjectSize = ObjectSize;
  1444.     NewCache->MaxDepth = MaxDepth;
  1445.  
  1446.     *ReturnCache = (ACPI_CACHE_T) NewCache;
  1447.     return (AE_OK);
  1448. }
  1449.  
  1450. ACPI_STATUS
  1451. AcpiOsDeleteCache (
  1452.     ACPI_CACHE_T            *Cache)
  1453. {
  1454.     free (Cache);
  1455.     return (AE_OK);
  1456. }
  1457.  
  1458. ACPI_STATUS
  1459. AcpiOsPurgeCache (
  1460.     ACPI_CACHE_T            *Cache)
  1461. {
  1462.     return (AE_OK);
  1463. }
  1464.  
  1465. void *
  1466. AcpiOsAcquireObject (
  1467.     ACPI_CACHE_T            *Cache)
  1468. {
  1469.     void                    *NewObject;
  1470.  
  1471.     NewObject = malloc (((ACPI_MEMORY_LIST *) Cache)->ObjectSize);
  1472.     memset (NewObject, 0, ((ACPI_MEMORY_LIST *) Cache)->ObjectSize);
  1473.  
  1474.     return (NewObject);
  1475. }
  1476.  
  1477. ACPI_STATUS
  1478. AcpiOsReleaseObject (
  1479.     ACPI_CACHE_T            *Cache,
  1480.     void                    *Object)
  1481. {
  1482.     free (Object);
  1483.     return (AE_OK);
  1484. }
  1485.  
  1486. #endif
  1487.