mirror of https://github.com/acidanthera/audk.git
78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
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/** @file
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Template for ArmEb DebugAgentLib.
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For ARM we reserve FIQ for the Debug Agent Timer. We don't care about
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laytency as we only really need the timer to run a few times a second
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(how fast can some one type a ctrl-c?), but it works much better if
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the interrupt we are using to break into the debugger is not being
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used, and masked, by the system.
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Copyright (c) 2008 - 2010, Apple Inc. 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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#include <Base.h>
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#include <Library/DebugAgentTimerLib.h>
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/**
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Setup all the hardware needed for the debug agents timer.
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This function is used to set up debug enviroment.
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**/
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VOID
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EFIAPI
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DebugAgentTimerIntialize (
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VOID
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)
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{
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// Map Timer to FIQ
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}
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/**
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Set the period for the debug agent timer. Zero means disable the timer.
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@param[in] TimerPeriodMilliseconds Frequency of the debug agent timer.
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**/
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VOID
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EFIAPI
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DebugAgentTimerSetPeriod (
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IN UINT32 TimerPeriodMilliseconds
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)
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{
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if (TimerPeriodMilliseconds == 0) {
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// Disable timer and Disable FIQ
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return;
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}
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// Set timer period and unmask FIQ
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}
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/**
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Perform End Of Interrupt for the debug agent timer. This is called in the
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interrupt handler after the interrupt has been processed.
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**/
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VOID
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EFIAPI
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DebugAgentTimerEndOfInterrupt (
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VOID
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)
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{
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// EOI Timer interrupt for FIQ
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}
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