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https://github.com/reactos/reactos.git
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1f377076d7
Not all files are included, but these are necessary to compile cdrom driver. So far it can only be statically linked with drivers, a proper implementation requires wdfldr helper driver
156 lines
2.7 KiB
C++
156 lines
2.7 KiB
C++
/*++
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Copyright (c) Microsoft Corporation
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Module Name:
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FxDeviceInterface.cpp
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Abstract:
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This module implements the device interface object.
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Author:
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Environment:
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Both kernel and user mode
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Revision History:
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--*/
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#include "fxsupportpch.hpp"
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extern "C" {
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// #include "FxDeviceInterface.tmh"
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}
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FxDeviceInterface::FxDeviceInterface(
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)
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/*++
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Routine Description:
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Constructor for the object. Initializes all fields
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Arguments:
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None
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Return Value:
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None
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--*/
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{
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RtlZeroMemory(&m_InterfaceClassGUID, sizeof(m_InterfaceClassGUID));
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RtlZeroMemory(&m_SymbolicLinkName, sizeof(m_SymbolicLinkName));
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RtlZeroMemory(&m_ReferenceString, sizeof(m_ReferenceString));
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m_Entry.Next = NULL;
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m_State = FALSE;
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#if (FX_CORE_MODE == FX_CORE_USER_MODE)
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m_Device = NULL;
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#endif
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}
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FxDeviceInterface::~FxDeviceInterface()
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/*++
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Routine Description:
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Destructor for FxDeviceInterface. Cleans up any allocations previously
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allocated.
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Arguments:
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None
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Return Value:
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None
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--*/
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{
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// the device interface should be off now
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ASSERT(m_State == FALSE);
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// should no longer be in any list
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ASSERT(m_Entry.Next == NULL);
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if (m_ReferenceString.Buffer != NULL) {
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FxPoolFree(m_ReferenceString.Buffer);
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RtlZeroMemory(&m_ReferenceString, sizeof(m_ReferenceString));
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}
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if (m_SymbolicLinkName.Buffer != NULL) {
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RtlFreeUnicodeString(&m_SymbolicLinkName);
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}
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}
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_Must_inspect_result_
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NTSTATUS
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FxDeviceInterface::Initialize(
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__in PFX_DRIVER_GLOBALS FxDriverGlobals,
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__in CONST GUID* InterfaceGUID,
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__in_opt PCUNICODE_STRING ReferenceString
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)
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/*++
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Routine Description:
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Initializes the object with the interface GUID and optional reference string
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Arguments:
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InterfaceGUID - GUID describing the interface
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ReferenceString - string used to differentiate between 2 interfaces on the
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same PDO
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Return Value:
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STATUS_SUCCESS or STATUS_INSUFFICIENT_RESOURCES
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--*/
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{
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RtlCopyMemory(&m_InterfaceClassGUID, InterfaceGUID, sizeof(GUID));
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if (ReferenceString != NULL) {
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return FxDuplicateUnicodeString(FxDriverGlobals,
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ReferenceString,
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&m_ReferenceString);
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}
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else {
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return STATUS_SUCCESS;
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}
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}
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VOID
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FxDeviceInterface::SetState(
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__in BOOLEAN State
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)
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/*++
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Routine Description:
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Sets the state of the device interface
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Arguments:
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State - the state to set
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Return Value:
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None.
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--*/
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{
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m_State = State;
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//
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// Only set the state if the interface has been registered
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//
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if (m_SymbolicLinkName.Buffer != NULL) {
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Mx::MxSetDeviceInterfaceState(&m_SymbolicLinkName, m_State);
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}
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}
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