4 * Copyright (C) 2002, 2003, 2004 ReactOS Team
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; see the file COPYING.LIB.
18 * If not, write to the Free Software Foundation,
19 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
31 VideoPortCreateSpinLock(
32 IN PVOID HwDeviceExtension
,
33 OUT PSPIN_LOCK
*SpinLock
)
35 DPRINT("VideoPortCreateSpinLock\n");
36 *SpinLock
= ExAllocatePool(NonPagedPool
, sizeof(KSPIN_LOCK
));
37 if (*SpinLock
== NULL
)
38 return ERROR_NOT_ENOUGH_MEMORY
;
39 KeInitializeSpinLock((PKSPIN_LOCK
)*SpinLock
);
48 VideoPortDeleteSpinLock(
49 IN PVOID HwDeviceExtension
,
50 IN PSPIN_LOCK SpinLock
)
52 DPRINT("VideoPortDeleteSpinLock\n");
62 VideoPortAcquireSpinLock(
63 IN PVOID HwDeviceExtension
,
64 IN PSPIN_LOCK SpinLock
,
67 DPRINT("VideoPortAcquireSpinLock\n");
68 KeAcquireSpinLock((PKSPIN_LOCK
)SpinLock
, OldIrql
);
76 VideoPortAcquireSpinLockAtDpcLevel(
77 IN PVOID HwDeviceExtension
,
78 IN PSPIN_LOCK SpinLock
)
80 DPRINT("VideoPortAcquireSpinLockAtDpcLevel\n");
81 KefAcquireSpinLockAtDpcLevel((PKSPIN_LOCK
)SpinLock
);
89 VideoPortReleaseSpinLock(
90 IN PVOID HwDeviceExtension
,
91 IN PSPIN_LOCK SpinLock
,
94 DPRINT("VideoPortReleaseSpinLock\n");
95 KeReleaseSpinLock((PKSPIN_LOCK
)SpinLock
, NewIrql
);
103 VideoPortReleaseSpinLockFromDpcLevel(
104 IN PVOID HwDeviceExtension
,
105 IN PSPIN_LOCK SpinLock
)
107 DPRINT("VideoPortReleaseSpinLockFromDpcLevel\n");
108 KefReleaseSpinLockFromDpcLevel((PKSPIN_LOCK
)SpinLock
);