mirror of
https://github.com/reactos/reactos.git
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119 lines
2.4 KiB
C
119 lines
2.4 KiB
C
/*
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* PROJECT: ReactOS TDI driver
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: drivers/network/tdi/cte/timer.c
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* PURPOSE: CTE timer support
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* PROGRAMMERS: Oleg Baikalow (obaikalow@gmail.com)
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*/
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/* INCLUDES *****************************************************************/
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#include "precomp.h"
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/* FIXME: Move to a common header! */
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struct _CTE_DELAYED_EVENT;
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typedef void (*CTE_WORKER_ROUTINE)(struct _CTE_DELAYED_EVENT *, void *Context);
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typedef struct _CTE_TIMER
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{
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BOOLEAN Queued;
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KSPIN_LOCK Lock;
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CTE_WORKER_ROUTINE Callback;
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PVOID Context;
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KDPC Dpc;
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KTIMER Timer;
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} CTE_TIMER, *PCTE_TIMER;
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LONG CteTimeIncrement;
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/* FUNCTIONS *****************************************************************/
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VOID
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NTAPI
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InternalDpcRoutine(PKDPC Dpc,
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PVOID Context,
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PVOID SystemArgument1,
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PVOID SystemArgument2)
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{
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PCTE_TIMER Timer = (PCTE_TIMER)Context;
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/* Call our registered callback */
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Timer->Callback((struct _CTE_DELAYED_EVENT *)Timer, Timer->Context);
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}
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/*
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* @implemented
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*/
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VOID
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NTAPI
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CTEInitTimer(PCTE_TIMER Timer)
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{
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/* Zero all fields */
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RtlZeroMemory(Timer, sizeof(CTE_TIMER));
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/* Create a DPC and a timer */
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KeInitializeDpc(&Timer->Dpc, InternalDpcRoutine, Timer);
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KeInitializeTimer(&Timer->Timer);
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}
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/*
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* @implemented
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*/
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BOOLEAN
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NTAPI
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CTEStartTimer(PCTE_TIMER Timer,
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ULONG DueTimeShort,
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CTE_WORKER_ROUTINE Callback,
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PVOID Context)
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{
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LARGE_INTEGER DueTime;
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/* Make sure a callback was provided */
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ASSERT(Callback);
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/* We need to convert due time, because DueTimeShort is in ms,
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but NT timer expects 100s of ns, negative one */
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DueTime.QuadPart = -Int32x32To64(DueTimeShort, 10000);
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/* Set other timer members */
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Timer->Callback = Callback;
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Timer->Context = Context;
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/* Set the timer */
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KeSetTimer(&Timer->Timer, DueTime, &Timer->Dpc);
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return TRUE;
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}
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/*
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* @implemented
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*/
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ULONG
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NTAPI
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CTESystemUpTime(VOID)
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{
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LARGE_INTEGER Ticks;
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/* Get the tick count */
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KeQueryTickCount(&Ticks);
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/* Convert to 100s of ns and then to ms*/
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Ticks.QuadPart = (Ticks.QuadPart * CteTimeIncrement) / 10000ULL;
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return Ticks.LowPart;
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}
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/*
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* @implemented
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*/
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BOOLEAN
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NTAPI
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CTEInitialize(VOID)
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{
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/* Just return success */
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return TRUE;
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}
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/* EOF */
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