/******************************************************************************
*
* Module Name: oswinxf - Windows OSL
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2011, 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.
*
*****************************************************************************/
#include "acpi.h"
#include "accommon.h"
#ifdef WIN32
#pragma warning(disable:4115) /* warning C4115: named type definition in parentheses (caused by rpcasync.h> */
#include <windows.h>
#include <winbase.h>
#elif WIN64
#include <windowsx.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <process.h>
#include <time.h>
#define _COMPONENT ACPI_OS_SERVICES
ACPI_MODULE_NAME ("oswinxf")
extern FILE *AcpiGbl_DebugFile;
extern BOOLEAN AcpiGbl_DebugTimeout;
FILE *AcpiGbl_OutputFile;
UINT64 TimerFrequency;
char TableName[ACPI_NAME_SIZE + 1];
#define ACPI_OS_DEBUG_TIMEOUT 30000 /* 30 seconds */
/* Upcalls to application */
ACPI_PHYSICAL_ADDRESS
AeLocalGetRootPointer (
void);
void
AeTableOverride (
ACPI_TABLE_HEADER *ExistingTable,
ACPI_TABLE_HEADER **NewTable);
ACPI_TABLE_HEADER *
OsGetTable (
char *Signature);
/*
* Real semaphores are only used for a multi-threaded application
*/
#ifndef ACPI_SINGLE_THREADED
/* Semaphore information structure */
typedef struct acpi_os_semaphore_info
{
UINT16 MaxUnits;
UINT16 CurrentUnits;
void *OsHandle;
} ACPI_OS_SEMAPHORE_INFO;
/* Need enough semaphores to run the large aslts suite */
#define ACPI_OS_MAX_SEMAPHORES 256
ACPI_OS_SEMAPHORE_INFO AcpiGbl_Semaphores[ACPI_OS_MAX_SEMAPHORES];
#endif /* ACPI_SINGLE_THREADED */
/******************************************************************************
*
* FUNCTION: AcpiOsTerminate
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Nothing to do for windows
*
*****************************************************************************/
ACPI_STATUS
AcpiOsTerminate (
void)
{
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsInitialize
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Init this OSL
*
*****************************************************************************/
ACPI_STATUS
AcpiOsInitialize (
void)
{
LARGE_INTEGER LocalTimerFrequency;
#ifndef ACPI_SINGLE_THREADED
/* Clear the semaphore info array */
memset (AcpiGbl_Semaphores
, 0x00, sizeof (AcpiGbl_Semaphores
)); #endif
AcpiGbl_OutputFile = stdout;
/* Get the timer frequency for use in AcpiOsGetTimer */
TimerFrequency = 0;
if (QueryPerformanceFrequency (&LocalTimerFrequency))
{
/* Frequency is in ticks per second */
TimerFrequency = LocalTimerFrequency.QuadPart;
}
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsGetRootPointer
*
* PARAMETERS: None
*
* RETURN: RSDP physical address
*
* DESCRIPTION: Gets the root pointer (RSDP)
*
*****************************************************************************/
ACPI_PHYSICAL_ADDRESS
AcpiOsGetRootPointer (
void)
{
return (AeLocalGetRootPointer ());
}
/******************************************************************************
*
* FUNCTION: AcpiOsPredefinedOverride
*
* PARAMETERS: InitVal - Initial value of the predefined object
* NewVal - The new value for the object
*
* RETURN: Status, pointer to value. Null pointer returned if not
* overriding.
*
* DESCRIPTION: Allow the OS to override predefined names
*
*****************************************************************************/
ACPI_STATUS
AcpiOsPredefinedOverride (
const ACPI_PREDEFINED_NAMES *InitVal,
ACPI_STRING *NewVal)
{
if (!InitVal || !NewVal)
{
return (AE_BAD_PARAMETER);
}
*NewVal = NULL;
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsTableOverride
*
* PARAMETERS: ExistingTable - Header of current table (probably firmware)
* NewTable - Where an entire new table is returned.
*
* RETURN: Status, pointer to new table. Null pointer returned if no
* table is available to override
*
* DESCRIPTION: Return a different version of a table if one is available
*
*****************************************************************************/
ACPI_STATUS
AcpiOsTableOverride (
ACPI_TABLE_HEADER *ExistingTable,
ACPI_TABLE_HEADER **NewTable)
{
if (!ExistingTable || !NewTable)
{
return (AE_BAD_PARAMETER);
}
*NewTable = NULL;
#ifdef ACPI_EXEC_APP
/* Call back up to AcpiExec */
AeTableOverride (ExistingTable, NewTable);
#endif
#ifdef ACPI_ASL_COMPILER
/* Attempt to get the table from the registry */
/* Construct a null-terminated string from table signature */
TableName[ACPI_NAME_SIZE] = 0;
ACPI_STRNCPY (TableName, ExistingTable->Signature, ACPI_NAME_SIZE);
*NewTable = OsGetTable (TableName);
if (*NewTable)
{
AcpiOsPrintf ("Table [%s] obtained from registry, %u bytes\n",
TableName, (*NewTable)->Length);
}
else
{
AcpiOsPrintf ("Could not read table %s from registry\n", TableName);
}
#endif
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsGetTimer
*
* PARAMETERS: None
*
* RETURN: Current ticks in 100-nanosecond units
*
* DESCRIPTION: Get the value of a system timer
*
******************************************************************************/
UINT64
AcpiOsGetTimer (
void)
{
LARGE_INTEGER Timer;
/* Attempt to use hi-granularity timer first */
if (TimerFrequency &&
QueryPerformanceCounter (&Timer))
{
/* Convert to 100 nanosecond ticks */
return ((UINT64) ((Timer.QuadPart * (UINT64) 10000000) / TimerFrequency));
}
/* Fall back to the lo-granularity timer */
else
{
/* Convert milliseconds to 100 nanosecond ticks */
return ((UINT64) GetTickCount() * 10000);
}
}
/******************************************************************************
*
* FUNCTION: AcpiOsReadable
*
* PARAMETERS: Pointer - Area to be verified
* Length - Size of area
*
* RETURN: TRUE if readable for entire length
*
* DESCRIPTION: Verify that a pointer is valid for reading
*
*****************************************************************************/
BOOLEAN
AcpiOsReadable (
void *Pointer,
ACPI_SIZE Length)
{
return ((BOOLEAN) !IsBadReadPtr (Pointer, Length));
}
/******************************************************************************
*
* FUNCTION: AcpiOsWritable
*
* PARAMETERS: Pointer - Area to be verified
* Length - Size of area
*
* RETURN: TRUE if writable for entire length
*
* DESCRIPTION: Verify that a pointer is valid for writing
*
*****************************************************************************/
BOOLEAN
AcpiOsWritable (
void *Pointer,
ACPI_SIZE Length)
{
return ((BOOLEAN) !IsBadWritePtr (Pointer, Length));
}
/******************************************************************************
*
* FUNCTION: AcpiOsRedirectOutput
*
* PARAMETERS: Destination - An open file handle/pointer
*
* RETURN: None
*
* DESCRIPTION: Causes redirect of AcpiOsPrintf and AcpiOsVprintf
*
*****************************************************************************/
void
AcpiOsRedirectOutput (
void *Destination)
{
AcpiGbl_OutputFile = Destination;
}
/******************************************************************************
*
* FUNCTION: AcpiOsPrintf
*
* PARAMETERS: Fmt, ... - Standard printf format
*
* RETURN: None
*
* DESCRIPTION: Formatted output
*
*****************************************************************************/
void ACPI_INTERNAL_VAR_XFACE
AcpiOsPrintf (
const char *Fmt,
...)
{
va_list Args;
AcpiOsVprintf (Fmt, Args);
return;
}
/******************************************************************************
*
* FUNCTION: AcpiOsVprintf
*
* PARAMETERS: Fmt - Standard printf format
* Args - Argument list
*
* RETURN: None
*
* DESCRIPTION: Formatted output with argument list pointer
*
*****************************************************************************/
void
AcpiOsVprintf (
const char *Fmt,
va_list Args)
{
INT32 Count = 0;
UINT8 Flags;
Flags = AcpiGbl_DbOutputFlags;
if (Flags & ACPI_DB_REDIRECTABLE_OUTPUT)
{
/* Output is directable to either a file (if open) or the console */
if (AcpiGbl_DebugFile)
{
/* Output file is open, send the output there */
Count
= vfprintf (AcpiGbl_DebugFile
, Fmt
, Args
); }
else
{
/* No redirection, send output to console (once only!) */
Flags |= ACPI_DB_CONSOLE_OUTPUT;
}
}
if (Flags & ACPI_DB_CONSOLE_OUTPUT)
{
Count
= vfprintf (AcpiGbl_OutputFile
, Fmt
, Args
); }
return;
}
/******************************************************************************
*
* FUNCTION: AcpiOsGetLine
*
* PARAMETERS: Buffer - Where to return the command line
* BufferLength - Maximum length of Buffer
* BytesRead - Where the actual byte count is returned
*
* RETURN: Status and actual bytes read
*
* DESCRIPTION: Formatted input with argument list pointer
*
*****************************************************************************/
ACPI_STATUS
AcpiOsGetLine (
char *Buffer,
UINT32 BufferLength,
UINT32 *BytesRead)
{
char Temp;
UINT32 i;
for (i = 0; ; i++)
{
if (i >= BufferLength)
{
return (AE_BUFFER_OVERFLOW);
}
if (!Temp || Temp == '\n')
{
break;
}
Buffer [i] = Temp;
}
/* Null terminate the buffer */
Buffer [i] = 0;
/* Return the number of bytes in the string */
if (BytesRead)
{
*BytesRead = i;
}
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsMapMemory
*
* PARAMETERS: Where - Physical address of memory to be mapped
* Length - How much memory to map
*
* RETURN: Pointer to mapped memory. Null on error.
*
* DESCRIPTION: Map physical memory into caller's address space
*
*****************************************************************************/
void *
AcpiOsMapMemory (
ACPI_PHYSICAL_ADDRESS Where,
ACPI_SIZE Length)
{
return (ACPI_TO_POINTER ((ACPI_SIZE) Where));
}
/******************************************************************************
*
* FUNCTION: AcpiOsUnmapMemory
*
* PARAMETERS: Where - Logical address of memory to be unmapped
* Length - How much memory to unmap
*
* RETURN: None.
*
* DESCRIPTION: Delete a previously created mapping. Where and Length must
* correspond to a previous mapping exactly.
*
*****************************************************************************/
void
AcpiOsUnmapMemory (
void *Where,
ACPI_SIZE Length)
{
return;
}
/******************************************************************************
*
* FUNCTION: AcpiOsAllocate
*
* PARAMETERS: Size - Amount to allocate, in bytes
*
* RETURN: Pointer to the new allocation. Null on error.
*
* DESCRIPTION: Allocate memory. Algorithm is dependent on the OS.
*
*****************************************************************************/
void *
AcpiOsAllocate (
ACPI_SIZE Size)
{
void *Mem;
Mem
= (void *) malloc ((size_t) Size
);
return (Mem);
}
/******************************************************************************
*
* FUNCTION: AcpiOsFree
*
* PARAMETERS: Mem - Pointer to previously allocated memory
*
* RETURN: None.
*
* DESCRIPTION: Free memory allocated via AcpiOsAllocate
*
*****************************************************************************/
void
AcpiOsFree (
void *Mem)
{
}
#ifdef ACPI_SINGLE_THREADED
/******************************************************************************
*
* FUNCTION: Semaphore stub functions
*
* DESCRIPTION: Stub functions used for single-thread applications that do
* not require semaphore synchronization. Full implementations
* of these functions appear after the stubs.
*
*****************************************************************************/
ACPI_STATUS
AcpiOsCreateSemaphore (
UINT32 MaxUnits,
UINT32 InitialUnits,
ACPI_HANDLE *OutHandle)
{
*OutHandle = (ACPI_HANDLE) 1;
return (AE_OK);
}
ACPI_STATUS
AcpiOsDeleteSemaphore (
ACPI_HANDLE Handle)
{
return (AE_OK);
}
ACPI_STATUS
AcpiOsWaitSemaphore (
ACPI_HANDLE Handle,
UINT32 Units,
UINT16 Timeout)
{
return (AE_OK);
}
ACPI_STATUS
AcpiOsSignalSemaphore (
ACPI_HANDLE Handle,
UINT32 Units)
{
return (AE_OK);
}
#else
/******************************************************************************
*
* FUNCTION: AcpiOsCreateSemaphore
*
* PARAMETERS: MaxUnits - Maximum units that can be sent
* InitialUnits - Units to be assigned to the new semaphore
* OutHandle - Where a handle will be returned
*
* RETURN: Status
*
* DESCRIPTION: Create an OS semaphore
*
*****************************************************************************/
ACPI_STATUS
AcpiOsCreateSemaphore (
UINT32 MaxUnits,
UINT32 InitialUnits,
ACPI_SEMAPHORE *OutHandle)
{
void *Mutex;
UINT32 i;
ACPI_FUNCTION_NAME (OsCreateSemaphore);
if (MaxUnits == ACPI_UINT32_MAX)
{
MaxUnits = 255;
}
if (InitialUnits == ACPI_UINT32_MAX)
{
InitialUnits = MaxUnits;
}
if (InitialUnits > MaxUnits)
{
return (AE_BAD_PARAMETER);
}
/* Find an empty slot */
for (i = 0; i < ACPI_OS_MAX_SEMAPHORES; i++)
{
if (!AcpiGbl_Semaphores[i].OsHandle)
{
break;
}
}
if (i >= ACPI_OS_MAX_SEMAPHORES)
{
ACPI_EXCEPTION ((AE_INFO, AE_LIMIT,
"Reached max semaphores (%u), could not create", ACPI_OS_MAX_SEMAPHORES));
return (AE_LIMIT);
}
/* Create an OS semaphore */
Mutex = CreateSemaphore (NULL, InitialUnits, MaxUnits, NULL);
if (!Mutex)
{
ACPI_ERROR ((AE_INFO, "Could not create semaphore"));
return (AE_NO_MEMORY);
}
AcpiGbl_Semaphores[i].MaxUnits = (UINT16) MaxUnits;
AcpiGbl_Semaphores[i].CurrentUnits = (UINT16) InitialUnits;
AcpiGbl_Semaphores[i].OsHandle = Mutex;
ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Handle=%u, Max=%u, Current=%u, OsHandle=%p\n",
i, MaxUnits, InitialUnits, Mutex));
*OutHandle = (void *) i;
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsDeleteSemaphore
*
* PARAMETERS: Handle - Handle returned by AcpiOsCreateSemaphore
*
* RETURN: Status
*
* DESCRIPTION: Delete an OS semaphore
*
*****************************************************************************/
ACPI_STATUS
AcpiOsDeleteSemaphore (
ACPI_SEMAPHORE Handle)
{
UINT32 Index = (UINT32) Handle;
if ((Index >= ACPI_OS_MAX_SEMAPHORES) ||
!AcpiGbl_Semaphores[Index].OsHandle)
{
return (AE_BAD_PARAMETER);
}
CloseHandle (AcpiGbl_Semaphores[Index].OsHandle);
AcpiGbl_Semaphores[Index].OsHandle = NULL;
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsWaitSemaphore
*
* PARAMETERS: Handle - Handle returned by AcpiOsCreateSemaphore
* Units - How many units to wait for
* Timeout - How long to wait
*
* RETURN: Status
*
* DESCRIPTION: Wait for units
*
*****************************************************************************/
ACPI_STATUS
AcpiOsWaitSemaphore (
ACPI_SEMAPHORE Handle,
UINT32 Units,
UINT16 Timeout)
{
UINT32 Index = (UINT32) Handle;
UINT32 WaitStatus;
UINT32 OsTimeout = Timeout;
ACPI_FUNCTION_ENTRY ();
if ((Index >= ACPI_OS_MAX_SEMAPHORES) ||
!AcpiGbl_Semaphores[Index].OsHandle)
{
return (AE_BAD_PARAMETER);
}
if (Units > 1)
{
printf ("WaitSemaphore: Attempt to receive %u units\n", Units
); return (AE_NOT_IMPLEMENTED);
}
if (Timeout == ACPI_WAIT_FOREVER)
{
OsTimeout = INFINITE;
if (AcpiGbl_DebugTimeout)
{
/* The debug timeout will prevent hang conditions */
OsTimeout = ACPI_OS_DEBUG_TIMEOUT;
}
}
else
{
/* Add 10ms to account for clock tick granularity */
OsTimeout += 10;
}
WaitStatus = WaitForSingleObject (AcpiGbl_Semaphores[Index].OsHandle, OsTimeout);
if (WaitStatus == WAIT_TIMEOUT)
{
if (AcpiGbl_DebugTimeout)
{
ACPI_EXCEPTION ((AE_INFO, AE_TIME,
"Debug timeout on semaphore 0x%04X (%ums)\n",
Index, ACPI_OS_DEBUG_TIMEOUT));
}
return (AE_TIME);
}
if (AcpiGbl_Semaphores[Index].CurrentUnits == 0)
{
ACPI_ERROR ((AE_INFO, "%s - No unit received. Timeout 0x%X, OS_Status 0x%X",
AcpiUtGetMutexName (Index), Timeout, WaitStatus));
return (AE_OK);
}
AcpiGbl_Semaphores[Index].CurrentUnits--;
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsSignalSemaphore
*
* PARAMETERS: Handle - Handle returned by AcpiOsCreateSemaphore
* Units - Number of units to send
*
* RETURN: Status
*
* DESCRIPTION: Send units
*
*****************************************************************************/
ACPI_STATUS
AcpiOsSignalSemaphore (
ACPI_SEMAPHORE Handle,
UINT32 Units)
{
UINT32 Index = (UINT32) Handle;
ACPI_FUNCTION_ENTRY ();
if (Index >= ACPI_OS_MAX_SEMAPHORES)
{
printf ("SignalSemaphore: Index/Handle out of range: %2.2X\n", Index
); return (AE_BAD_PARAMETER);
}
if (!AcpiGbl_Semaphores[Index].OsHandle)
{
printf ("SignalSemaphore: Null OS handle, Index %2.2X\n", Index
); return (AE_BAD_PARAMETER);
}
if (Units > 1)
{
printf ("SignalSemaphore: Attempt to signal %u units, Index %2.2X\n", Units
, Index
); return (AE_NOT_IMPLEMENTED);
}
if ((AcpiGbl_Semaphores[Index].CurrentUnits + 1) >
AcpiGbl_Semaphores[Index].MaxUnits)
{
ACPI_ERROR ((AE_INFO,
"Oversignalled semaphore[%u]! Current %u Max %u",
Index, AcpiGbl_Semaphores[Index].CurrentUnits,
AcpiGbl_Semaphores[Index].MaxUnits));
return (AE_LIMIT);
}
AcpiGbl_Semaphores[Index].CurrentUnits++;
ReleaseSemaphore (AcpiGbl_Semaphores[Index].OsHandle, Units, NULL);
return (AE_OK);
}
#endif /* ACPI_SINGLE_THREADED */
/******************************************************************************
*
* FUNCTION: Spinlock interfaces
*
* DESCRIPTION: Map these interfaces to semaphore interfaces
*
*****************************************************************************/
ACPI_STATUS
AcpiOsCreateLock (
ACPI_SPINLOCK *OutHandle)
{
return (AcpiOsCreateSemaphore (1, 1, OutHandle));
}
void
AcpiOsDeleteLock (
ACPI_SPINLOCK Handle)
{
AcpiOsDeleteSemaphore (Handle);
}
ACPI_CPU_FLAGS
AcpiOsAcquireLock (
ACPI_SPINLOCK Handle)
{
AcpiOsWaitSemaphore (Handle, 1, 0xFFFF);
return (0);
}
void
AcpiOsReleaseLock (
ACPI_SPINLOCK Handle,
ACPI_CPU_FLAGS Flags)
{
AcpiOsSignalSemaphore (Handle, 1);
}
#if ACPI_FUTURE_IMPLEMENTATION
/* Mutex interfaces, just implement with a semaphore */
ACPI_STATUS
AcpiOsCreateMutex (
ACPI_MUTEX *OutHandle)
{
return (AcpiOsCreateSemaphore (1, 1, OutHandle));
}
void
AcpiOsDeleteMutex (
ACPI_MUTEX Handle)
{
AcpiOsDeleteSemaphore (Handle);
}
ACPI_STATUS
AcpiOsAcquireMutex (
ACPI_MUTEX Handle,
UINT16 Timeout)
{
AcpiOsWaitSemaphore (Handle, 1, Timeout);
return (0);
}
void
AcpiOsReleaseMutex (
ACPI_MUTEX Handle)
{
AcpiOsSignalSemaphore (Handle, 1);
}
#endif
/******************************************************************************
*
* FUNCTION: AcpiOsInstallInterruptHandler
*
* PARAMETERS: InterruptNumber - Level handler should respond to.
* ServiceRoutine - Address of the ACPI interrupt handler
* Context - User context
*
* RETURN: Handle to the newly installed handler.
*
* DESCRIPTION: Install an interrupt handler. Used to install the ACPI
* OS-independent handler.
*
*****************************************************************************/
UINT32
AcpiOsInstallInterruptHandler (
UINT32 InterruptNumber,
ACPI_OSD_HANDLER ServiceRoutine,
void *Context)
{
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsRemoveInterruptHandler
*
* PARAMETERS: Handle - Returned when handler was installed
*
* RETURN: Status
*
* DESCRIPTION: Uninstalls an interrupt handler.
*
*****************************************************************************/
ACPI_STATUS
AcpiOsRemoveInterruptHandler (
UINT32 InterruptNumber,
ACPI_OSD_HANDLER ServiceRoutine)
{
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsStall
*
* PARAMETERS: Microseconds - Time to stall
*
* RETURN: None. Blocks until stall is completed.
*
* DESCRIPTION: Sleep at microsecond granularity
*
*****************************************************************************/
void
AcpiOsStall (
UINT32 Microseconds)
{
Sleep ((Microseconds / 1000) + 1);
return;
}
/******************************************************************************
*
* FUNCTION: AcpiOsSleep
*
* PARAMETERS: Milliseconds - Time to sleep
*
* RETURN: None. Blocks until sleep is completed.
*
* DESCRIPTION: Sleep at millisecond granularity
*
*****************************************************************************/
void
AcpiOsSleep (
UINT64 Milliseconds)
{
/* Add 10ms to account for clock tick granularity */
Sleep (((unsigned long) Milliseconds) + 10);
return;
}
/******************************************************************************
*
* FUNCTION: AcpiOsReadPciConfiguration
*
* PARAMETERS: PciId - Seg/Bus/Dev
* Register - Device Register
* Value - Buffer where value is placed
* Width - Number of bits
*
* RETURN: Status
*
* DESCRIPTION: Read data from PCI configuration space
*
*****************************************************************************/
ACPI_STATUS
AcpiOsReadPciConfiguration (
ACPI_PCI_ID *PciId,
UINT32 Register,
UINT64 *Value,
UINT32 Width)
{
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsWritePciConfiguration
*
* PARAMETERS: PciId - Seg/Bus/Dev
* Register - Device Register
* Value - Value to be written
* Width - Number of bits
*
* RETURN: Status
*
* DESCRIPTION: Write data to PCI configuration space
*
*****************************************************************************/
ACPI_STATUS
AcpiOsWritePciConfiguration (
ACPI_PCI_ID *PciId,
UINT32 Register,
UINT64 Value,
UINT32 Width)
{
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsReadPort
*
* PARAMETERS: Address - Address of I/O port/register to read
* Value - Where value is placed
* Width - Number of bits
*
* RETURN: Value read from port
*
* DESCRIPTION: Read data from an I/O port or register
*
*****************************************************************************/
ACPI_STATUS
AcpiOsReadPort (
ACPI_IO_ADDRESS Address,
UINT32 *Value,
UINT32 Width)
{
switch (Width)
{
case 8:
*Value = 0xFF;
break;
case 16:
*Value = 0xFFFF;
break;
case 32:
*Value = 0xFFFFFFFF;
break;
default:
return (AE_BAD_PARAMETER);
}
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsWritePort
*
* PARAMETERS: Address - Address of I/O port/register to write
* Value - Value to write
* Width - Number of bits
*
* RETURN: None
*
* DESCRIPTION: Write data to an I/O port or register
*
*****************************************************************************/
ACPI_STATUS
AcpiOsWritePort (
ACPI_IO_ADDRESS Address,
UINT32 Value,
UINT32 Width)
{
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsReadMemory
*
* PARAMETERS: Address - Physical Memory Address to read
* Value - Where value is placed
* Width - Number of bits
*
* RETURN: Value read from physical memory address. Always returned
* as a 32-bit integer, regardless of the read width.
*
* DESCRIPTION: Read data from a physical memory address
*
*****************************************************************************/
ACPI_STATUS
AcpiOsReadMemory (
ACPI_PHYSICAL_ADDRESS Address,
UINT32 *Value,
UINT32 Width)
{
switch (Width)
{
case 8:
case 16:
case 32:
*Value = 0;
break;
default:
return (AE_BAD_PARAMETER);
break;
}
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsWriteMemory
*
* PARAMETERS: Address - Physical Memory Address to write
* Value - Value to write
* Width - Number of bits
*
* RETURN: None
*
* DESCRIPTION: Write data to a physical memory address
*
*****************************************************************************/
ACPI_STATUS
AcpiOsWriteMemory (
ACPI_PHYSICAL_ADDRESS Address,
UINT32 Value,
UINT32 Width)
{
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsSignal
*
* PARAMETERS: Function - ACPI CA signal function code
* Info - Pointer to function-dependent structure
*
* RETURN: Status
*
* DESCRIPTION: Miscellaneous functions. Example implementation only.
*
*****************************************************************************/
ACPI_STATUS
AcpiOsSignal (
UINT32 Function,
void *Info)
{
switch (Function)
{
case ACPI_SIGNAL_FATAL:
break;
case ACPI_SIGNAL_BREAKPOINT:
break;
default:
break;
}
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: Local cache interfaces
*
* DESCRIPTION: Implements cache interfaces via malloc/free for testing
* purposes only.
*
*****************************************************************************/
#ifndef ACPI_USE_LOCAL_CACHE
ACPI_STATUS
AcpiOsCreateCache (
char *CacheName,
UINT16 ObjectSize,
UINT16 MaxDepth,
ACPI_CACHE_T **ReturnCache)
{
ACPI_MEMORY_LIST *NewCache;
NewCache
= malloc (sizeof (ACPI_MEMORY_LIST
)); if (!NewCache)
{
return (AE_NO_MEMORY);
}
memset (NewCache
, 0, sizeof (ACPI_MEMORY_LIST
)); NewCache->LinkOffset = 8;
NewCache->ListName = CacheName;
NewCache->ObjectSize = ObjectSize;
NewCache->MaxDepth = MaxDepth;
*ReturnCache = (ACPI_CACHE_T) NewCache;
return (AE_OK);
}
ACPI_STATUS
AcpiOsDeleteCache (
ACPI_CACHE_T *Cache)
{
return (AE_OK);
}
ACPI_STATUS
AcpiOsPurgeCache (
ACPI_CACHE_T *Cache)
{
return (AE_OK);
}
void *
AcpiOsAcquireObject (
ACPI_CACHE_T *Cache)
{
void *NewObject;
NewObject
= malloc (((ACPI_MEMORY_LIST
*) Cache
)->ObjectSize
); memset (NewObject
, 0, ((ACPI_MEMORY_LIST
*) Cache
)->ObjectSize
);
return (NewObject);
}
ACPI_STATUS
AcpiOsReleaseObject (
ACPI_CACHE_T *Cache,
void *Object)
{
return (AE_OK);
}
#endif /* ACPI_USE_LOCAL_CACHE */
/* Optional multi-thread support */
#ifndef ACPI_SINGLE_THREADED
/******************************************************************************
*
* FUNCTION: AcpiOsGetThreadId
*
* PARAMETERS: None
*
* RETURN: Id of the running thread
*
* DESCRIPTION: Get the Id of the current (running) thread
*
*****************************************************************************/
ACPI_THREAD_ID
AcpiOsGetThreadId (
void)
{
DWORD ThreadId;
/* Ensure ID is never 0 */
ThreadId = GetCurrentThreadId ();
return ((ACPI_THREAD_ID) (ThreadId + 1));
}
/******************************************************************************
*
* FUNCTION: AcpiOsExecute
*
* PARAMETERS: Type - Type of execution
* Function - Address of the function to execute
* Context - Passed as a parameter to the function
*
* RETURN: Status
*
* DESCRIPTION: Execute a new thread
*
*****************************************************************************/
ACPI_STATUS
AcpiOsExecute (
ACPI_EXECUTE_TYPE Type,
ACPI_OSD_EXEC_CALLBACK Function,
void *Context)
{
_beginthread (Function, (unsigned) 0, Context);
return (0);
}
#endif /* ACPI_SINGLE_THREADED */