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Update 8254 Timer driver to use IoLib instead of CPU I/O Protocol

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Also change the default tick rate from 54 ms to 10 ms.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6243 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
mdkinney
2008-10-27 02:12:53 +00:00
parent 0f25cc149a
commit 2952f72d6d
3 changed files with 12 additions and 22 deletions
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6
DuetPkg/8254TimerDxe/Timer.h
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@@ -26,13 +26,13 @@ Abstract:
#include <PiDxe.h>
#include <Protocol/Cpu.h>
#include <Protocol/CpuIo.h>
#include <Protocol/Legacy8259.h>
#include <Protocol/Timer.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/IoLib.h>
//
// The PCAT 8253/8254 has an input clock at 1.193182 MHz and Timer 0 is
@@ -43,7 +43,9 @@ Abstract:
// ---------------- * 1,000,000 uS/S = 54925.4 uS = 549254 * 100 ns
// 1,193,182 Hz
//
#define DEFAULT_TIMER_TICK_DURATION 549254
// The default timer tick duration is set to 10 ms = 100000 100 ns units
//
#define DEFAULT_TIMER_TICK_DURATION 100000
#define TIMER_CONTROL_PORT 0x43
#define TIMER0_COUNT_PORT 0x40