mirror of
https://github.com/gnif/LookingGlass.git
synced 2026-11-12 14:57:20 +00:00
c261fa053f
Expose a private, versioned control device that lets the IDD discover and claim the active audio adapter without using the public PortCls endpoints. Restrict access to SYSTEM and UMDF hosts, track adapter and binding generations, and keep broker failure optional. Reserve data-plane capabilities without advertising them until PCM queues are available.
78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
/**
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* Looking Glass
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* Copyright © 2017-2026 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#pragma once
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#include "Common.h"
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class CAudioAdapter;
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struct LGAudioPortClsDeviceContext
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{
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PVOID volatile adapter;
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};
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constexpr ULONG kLGAudioPortClsDeviceExtensionSize =
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PORT_CLASS_DEVICE_EXTENSION_SIZE +
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sizeof(LGAudioPortClsDeviceContext);
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inline LGAudioPortClsDeviceContext *GetLGAudioDeviceContext(
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_In_ PDEVICE_OBJECT deviceObject)
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{
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return reinterpret_cast<LGAudioPortClsDeviceContext *>(
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static_cast<BYTE *>(deviceObject->DeviceExtension) +
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PORT_CLASS_DEVICE_EXTENSION_SIZE);
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}
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_IRQL_requires_max_(PASSIVE_LEVEL)
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NTSTATUS BrokerDeviceInitialize(_In_ PDRIVER_OBJECT driverObject);
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_IRQL_requires_max_(PASSIVE_LEVEL)
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void BrokerDeviceShutdown();
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_IRQL_requires_max_(DISPATCH_LEVEL)
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bool BrokerDeviceIsControlDevice(_In_ PDEVICE_OBJECT deviceObject);
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_IRQL_requires_max_(APC_LEVEL)
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NTSTATUS BrokerDeviceDispatch(
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_In_ PDEVICE_OBJECT deviceObject,
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_Inout_ PIRP irp);
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_IRQL_requires_max_(PASSIVE_LEVEL)
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void BrokerDeviceNotifyPnpDeviceAdded();
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_IRQL_requires_max_(PASSIVE_LEVEL)
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void BrokerDeviceNotifyPnpDeviceRemoved();
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_IRQL_requires_max_(PASSIVE_LEVEL)
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NTSTATUS BrokerDeviceAttachAdapter(
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_In_ PDEVICE_OBJECT deviceObject,
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_In_ CAudioAdapter *adapter);
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_IRQL_requires_max_(PASSIVE_LEVEL)
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void BrokerDeviceDetachAdapter(_In_ PDEVICE_OBJECT deviceObject);
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_IRQL_requires_max_(DISPATCH_LEVEL)
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CAudioAdapter *BrokerDeviceAcquireAdapter(
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_Out_opt_ PULONGLONG generation);
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_IRQL_requires_max_(DISPATCH_LEVEL)
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void BrokerDeviceReleaseAdapter();
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