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https://github.com/reactos/reactos.git
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108 lines
2.4 KiB
C
108 lines
2.4 KiB
C
/*
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* VideoPort driver
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*
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* Copyright (C) 2002, 2003, 2004 ReactOS Team
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; see the file COPYING.LIB.
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* If not, write to the Free Software Foundation,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#include "videoprt.h"
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/*
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* @implemented
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*/
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VP_STATUS NTAPI
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VideoPortCreateSpinLock(
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IN PVOID HwDeviceExtension,
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OUT PSPIN_LOCK *SpinLock)
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{
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TRACE_(VIDEOPRT, "VideoPortCreateSpinLock\n");
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*SpinLock = ExAllocatePool(NonPagedPool, sizeof(KSPIN_LOCK));
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if (*SpinLock == NULL)
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return ERROR_NOT_ENOUGH_MEMORY;
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KeInitializeSpinLock((PKSPIN_LOCK)*SpinLock);
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return NO_ERROR;
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}
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/*
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* @implemented
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*/
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VP_STATUS NTAPI
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VideoPortDeleteSpinLock(
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IN PVOID HwDeviceExtension,
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IN PSPIN_LOCK SpinLock)
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{
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TRACE_(VIDEOPRT, "VideoPortDeleteSpinLock\n");
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ExFreePool(SpinLock);
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return NO_ERROR;
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}
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/*
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* @implemented
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*/
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VOID NTAPI
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VideoPortAcquireSpinLock(
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IN PVOID HwDeviceExtension,
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IN PSPIN_LOCK SpinLock,
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OUT PUCHAR OldIrql)
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{
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TRACE_(VIDEOPRT, "VideoPortAcquireSpinLock\n");
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KeAcquireSpinLock((PKSPIN_LOCK)SpinLock, OldIrql);
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}
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/*
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* @implemented
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*/
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VOID NTAPI
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VideoPortAcquireSpinLockAtDpcLevel(
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IN PVOID HwDeviceExtension,
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IN PSPIN_LOCK SpinLock)
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{
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TRACE_(VIDEOPRT, "VideoPortAcquireSpinLockAtDpcLevel\n");
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KefAcquireSpinLockAtDpcLevel((PKSPIN_LOCK)SpinLock);
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}
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/*
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* @implemented
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*/
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VOID NTAPI
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VideoPortReleaseSpinLock(
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IN PVOID HwDeviceExtension,
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IN PSPIN_LOCK SpinLock,
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IN UCHAR NewIrql)
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{
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TRACE_(VIDEOPRT, "VideoPortReleaseSpinLock\n");
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KeReleaseSpinLock((PKSPIN_LOCK)SpinLock, NewIrql);
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}
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/*
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* @implemented
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*/
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VOID NTAPI
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VideoPortReleaseSpinLockFromDpcLevel(
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IN PVOID HwDeviceExtension,
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IN PSPIN_LOCK SpinLock)
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{
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TRACE_(VIDEOPRT, "VideoPortReleaseSpinLockFromDpcLevel\n");
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KefReleaseSpinLockFromDpcLevel((PKSPIN_LOCK)SpinLock);
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}
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