8a079ef232
Actually, TimerCycle is APIC timer's initial count. Timer count value 0 is missed when calculating Delta value. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18329 6f19259b-4bc3-4df7-8a09-765794883524
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/** @file
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Header file for debug timer to support debug agent library implementation.
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Copyright (c) 2010 - 2015, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _DEBUG_TIMER_H_
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#define _DEBUG_TIMER_H_
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/**
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Initialize CPU local APIC timer.
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@param[out] TimerFrequency Local APIC timer frequency returned.
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@param[in] DumpFlag If TRUE, dump Local APIC timer's parameter.
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@return 32-bit Local APIC timer init count.
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**/
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UINT32
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InitializeDebugTimer (
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OUT UINT32 *TimerFrequency,
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IN BOOLEAN DumpFlag
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);
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/**
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Check if the timer is time out.
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@param[in] TimerCycle Timer initial count.
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@param[in] Timer The start timer from the begin.
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@param[in] TimeoutTicker Ticker number need time out.
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@return TRUE Timer time out occurs.
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@retval FALSE Timer does not time out.
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**/
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BOOLEAN
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IsDebugTimerTimeout (
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IN UINT32 TimerCycle,
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IN UINT32 Timer,
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IN UINT32 TimeoutTicker
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);
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#endif
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