170 lines
4.1 KiB
C
170 lines
4.1 KiB
C
/*++
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Copyright (C) Microsoft Corporation, 1996 - 1999
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Module Name:
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control.c
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Abstract:
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This module contains support routines for the port driver to access
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the miniport's HwAdapterControl functionality.
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Authors:
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Peter Wieland
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Environment:
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Kernel mode only
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Notes:
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Revision History:
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--*/
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#include "port.h"
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(PAGE, SpGetSupportedAdapterControlFunctions)
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#endif
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#define SIZEOF_CONTROL_TYPE_LIST (sizeof(SCSI_SUPPORTED_CONTROL_TYPE_LIST) +\
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sizeof(BOOLEAN) * (ScsiAdapterControlMax + 1))
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VOID
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SpGetSupportedAdapterControlFunctions(
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PADAPTER_EXTENSION Adapter
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)
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/*++
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Routine Description:
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This routine will query the miniport to determine which adapter control
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types are supported for the specified adapter. The
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SupportedAdapterControlBitmap in the adapter extension will be updated with
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the data returned by the miniport. These flags are used to determine
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what functionality (for power management and such) the miniport will
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support.
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Arguments:
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Adapter - the adapter to query
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Return Value:
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none
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--*/
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{
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UCHAR buffer[SIZEOF_CONTROL_TYPE_LIST];
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SCSI_ADAPTER_CONTROL_STATUS status;
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PSCSI_SUPPORTED_CONTROL_TYPE_LIST typeList =
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(PSCSI_SUPPORTED_CONTROL_TYPE_LIST) &buffer[0];
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PAGED_CODE();
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//
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// Must initialize the bitmap header before using it.
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//
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RtlInitializeBitMap(&(Adapter->SupportedControlBitMap),
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Adapter->SupportedControlBits,
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ScsiAdapterControlMax);
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//
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// Zero all the bits in the bitmap.
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//
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RtlClearAllBits(&(Adapter->SupportedControlBitMap));
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//
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// If the miniport does not support the adapter control function or if the
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// adapter is not PNP, the array has already been cleared so we can quit.
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//
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if ((Adapter->HwAdapterControl == NULL) || (Adapter->IsPnp == FALSE)) {
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return;
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}
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//
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// Zero the list of supported control types.
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//
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RtlZeroMemory(typeList, SIZEOF_CONTROL_TYPE_LIST);
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//
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// Initialize the max control type to signal the end of the array.
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//
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typeList->MaxControlType = ScsiAdapterControlMax;
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#if DBG
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typeList->SupportedTypeList[ScsiAdapterControlMax] = 0x63;
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#endif
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//
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// Call into the miniport to get the list of supported control types.
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//
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status = Adapter->HwAdapterControl(Adapter->HwDeviceExtension,
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ScsiQuerySupportedControlTypes,
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typeList);
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//
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// If the call into the miniport succeeded, walk the list of supported
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// types and for each type supported by the miniport, set the associated
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// bit in the bitmap.
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//
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if (status == ScsiAdapterControlSuccess) {
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ULONG i;
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ASSERT(typeList->SupportedTypeList[ScsiAdapterControlMax] == 0x63);
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for (i = 0; i < ScsiAdapterControlMax; i++) {
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if (typeList->SupportedTypeList[i] == TRUE) {
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RtlSetBits(&(Adapter->SupportedControlBitMap), i, 1);
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}
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}
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}
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return;
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}
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BOOLEAN
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SpIsAdapterControlTypeSupported(
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IN PADAPTER_EXTENSION AdapterExtension,
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IN SCSI_ADAPTER_CONTROL_TYPE ControlType
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)
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{
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return RtlAreBitsSet(&(AdapterExtension->SupportedControlBitMap),
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ControlType,
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1);
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}
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SCSI_ADAPTER_CONTROL_STATUS
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SpCallAdapterControl(
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IN PADAPTER_EXTENSION AdapterExtension,
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IN SCSI_ADAPTER_CONTROL_TYPE ControlType,
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IN PVOID Parameters
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)
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{
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ASSERT(TEST_FLAG(AdapterExtension->InterruptData.InterruptFlags,
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PD_ADAPTER_REMOVED) == FALSE);
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ASSERT(SpIsAdapterControlTypeSupported(AdapterExtension, ControlType));
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return AdapterExtension->HwAdapterControl(
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AdapterExtension->HwDeviceExtension,
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ControlType,
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Parameters);
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}
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