oswinxf.c

acpi tools for linux include acpiexec and acpixtract

    if ((AcpiGbl_Semaphores[Index].CurrentUnits + 1) >
        AcpiGbl_Semaphores[Index].MaxUnits)
    {
        ACPI_ERROR ((AE_INFO,
            "Oversignalled semaphore[%d]! Current %d Max %d",
            Index, AcpiGbl_Semaphores[Index].CurrentUnits,
            AcpiGbl_Semaphores[Index].MaxUnits));

        return (AE_LIMIT);
    }

    AcpiGbl_Semaphores[Index].CurrentUnits++;
    ReleaseSemaphore (AcpiGbl_Semaphores[Index].OsHandle, Units, NULL);

#endif

    return (AE_OK);
}


/* Spinlock interfaces, just implement with a semaphore */

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.
 *              Isr                 Address of the ACPI interrupt handler
 *              ExceptPtr           Where status is returned
 *
 * 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:    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 (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)
{

#ifdef _MULTI_THREADED
    _beginthread (Function, (unsigned) 0, Context);
#endif

    return 0;
}


/******************************************************************************
 *
 * FUNCTION:    AcpiOsStall
 *
 * PARAMETERS:  microseconds        To sleep
 *
 * RETURN:      Blocks until sleep is completed.
 *
 * DESCRIPTION: Sleep at microsecond granularity
 *
 *****************************************************************************/

void
AcpiOsStall (
    UINT32                  microseconds)
{

    Sleep ((microseconds / 1000) + 1);
    return;
}


/******************************************************************************
 *
 * FUNCTION:    AcpiOsSleep
 *
 * PARAMETERS:  milliseconds        To sleep
 *
 * RETURN:      Blocks until sleep is completed.
 *
 * DESCRIPTION: Sleep at millisecond granularity
 *
 *****************************************************************************/

void
AcpiOsSleep (
    ACPI_INTEGER            milliseconds)
{

    /* Add 10ms to account for clock tick granularity */

    Sleep (((unsigned long) milliseconds) + 10);
    return;
}


/******************************************************************************
 *
 * FUNCTION:    AcpiOsValidateInterface
 *
 * PARAMETERS:  Interface           - Requested interface to be validated
 *
 * RETURN:      AE_OK if interface is supported, AE_SUPPORT otherwise
 *
 * DESCRIPTION: Match an interface string to the interfaces supported by the
 *              host. Strings originate from an AML call to the _OSI method.
 *
 *****************************************************************************/

ACPI_STATUS
AcpiOsValidateInterface (
    char                    *Interface)
{

    return (AE_SUPPORT);
}


/******************************************************************************
 *
 * FUNCTION:    AcpiOsValidateAddress
 *
 * PARAMETERS:  SpaceId             - ACPI space ID
 *              Address             - Physical address
 *              Length              - Address length
 *
 * RETURN:      AE_OK if Address/Length is valid for the SpaceId. Otherwise,
 *              should return AE_AML_ILLEGAL_ADDRESS.
 *
 * DESCRIPTION: Validate a system address via the host OS. Used to validate
 *              the addresses accessed by AML operation regions.
 *
 *****************************************************************************/

ACPI_STATUS
AcpiOsValidateAddress (
    UINT8                   SpaceId,
    ACPI_PHYSICAL_ADDRESS   Address,
    ACPI_SIZE               Length)
{

    return (AE_OK);
}


/******************************************************************************
 *
 * 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,
    void                    *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,
    ACPI_INTEGER            Value,
    UINT32                  Width)
{

    return (AE_OK);
}

/* TEMPORARY STUB FUNCTION */
void
AcpiOsDerivePciId(
    ACPI_HANDLE             rhandle,
    ACPI_HANDLE             chandle,
    ACPI_PCI_ID             **PciId)
{

    return;
}


/******************************************************************************
 *
 * 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
 *
 *****************************************************************************/

ACPI_STATUS
AcpiOsSignal (
    UINT32                  Function,
    void                    *Info)
{

    switch (Function)
    {
    case ACPI_SIGNAL_FATAL:
        break;

    case ACPI_SIGNAL_BREAKPOINT:

        if (Info)
        {
            AcpiOsPrintf ("AcpiOsBreakpoint: %s ****\n", Info);
        }
        else
        {
            AcpiOsPrintf ("At AcpiOsBreakpoint ****\n");
        }

        break;
    }

    return (AE_OK);
}