From c7de829c796978e519984df2f1c8cfcf921a39a4 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Tue, 19 Nov 2002 11:04:11 +0000
Subject: * Patch by Thomas Frieden, 13 Nov 2002:   Add code for AmigaOne board
   (preliminary merge to U-Boot, still WIP)

* Patch by Jon Diekema, 12 Nov 2002:
  - Adding URL for IEEE OUI lookup
  - Making the autoboot #defines dependent on CONFIG_AUTOBOOT_KEYED
    being defined.
  - In the CONFIG_EXTRA_ENV_SETTINGS #define, the root-on-initrd and
    root-on-nfs macros are designed to switch how the default boot
    method gets defined.
---
 .../bios_emulator/scitech/src/pm/win32/ztimer.c    | 136 +++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 board/MAI/bios_emulator/scitech/src/pm/win32/ztimer.c

(limited to 'board/MAI/bios_emulator/scitech/src/pm/win32/ztimer.c')

diff --git a/board/MAI/bios_emulator/scitech/src/pm/win32/ztimer.c b/board/MAI/bios_emulator/scitech/src/pm/win32/ztimer.c
new file mode 100644
index 00000000000..318929a2c03
--- /dev/null
+++ b/board/MAI/bios_emulator/scitech/src/pm/win32/ztimer.c
@@ -0,0 +1,136 @@
+/****************************************************************************
+*
+*                         Ultra Long Period Timer
+*
+*  ========================================================================
+*
+*    The contents of this file are subject to the SciTech MGL Public
+*    License Version 1.0 (the "License"); you may not use this file
+*    except in compliance with the License. You may obtain a copy of
+*    the License at http://www.scitechsoft.com/mgl-license.txt
+*
+*    Software distributed under the License is distributed on an
+*    "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+*    implied. See the License for the specific language governing
+*    rights and limitations under the License.
+*
+*    The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc.
+*
+*    The Initial Developer of the Original Code is SciTech Software, Inc.
+*    All Rights Reserved.
+*
+*  ========================================================================
+*
+* Language:     ANSI C
+* Environment:  Win32
+*
+* Description:  OS specific implementation for the Zen Timer functions.
+*
+****************************************************************************/
+
+/*---------------------------- Global variables ---------------------------*/
+
+static CPU_largeInteger countFreq;
+static ibool            havePerformanceCounter;
+static ulong            start,finish;
+
+/*----------------------------- Implementation ----------------------------*/
+
+/****************************************************************************
+REMARKS:
+Initialise the Zen Timer module internals.
+****************************************************************************/
+void __ZTimerInit(void)
+{
+#ifdef  NO_ASSEMBLER
+    havePerformanceCounter = false;
+#else
+    havePerformanceCounter = QueryPerformanceFrequency((LARGE_INTEGER*)&countFreq);
+#endif
+}
+
+/****************************************************************************
+REMARKS:
+Start the Zen Timer counting.
+****************************************************************************/
+static void __LZTimerOn(
+    LZTimerObject *tm)
+{
+    if (havePerformanceCounter)
+        QueryPerformanceCounter((LARGE_INTEGER*)&tm->start);
+    else
+        tm->start.low = timeGetTime();
+}
+
+/****************************************************************************
+REMARKS:
+Compute the lap time since the timer was started.
+****************************************************************************/
+static ulong __LZTimerLap(
+    LZTimerObject *tm)
+{
+    CPU_largeInteger    tmLap,tmCount;
+
+    if (havePerformanceCounter) {
+        QueryPerformanceCounter((LARGE_INTEGER*)&tmLap);
+        _CPU_diffTime64(&tm->start,&tmLap,&tmCount);
+        return _CPU_calcMicroSec(&tmCount,countFreq.low);
+        }
+    else {
+        tmLap.low = timeGetTime();
+        return (tmLap.low - tm->start.low) * 1000L;
+        }
+}
+
+/****************************************************************************
+REMARKS:
+Stop the Zen Timer counting.
+****************************************************************************/
+static void __LZTimerOff(
+    LZTimerObject *tm)
+{
+    if (havePerformanceCounter)
+        QueryPerformanceCounter((LARGE_INTEGER*)&tm->end);
+    else
+        tm->end.low = timeGetTime();
+}
+
+/****************************************************************************
+REMARKS:
+Compute the elapsed time in microseconds between start and end timings.
+****************************************************************************/
+static ulong __LZTimerCount(
+    LZTimerObject *tm)
+{
+    CPU_largeInteger    tmCount;
+
+    if (havePerformanceCounter) {
+        _CPU_diffTime64(&tm->start,&tm->end,&tmCount);
+        return _CPU_calcMicroSec(&tmCount,countFreq.low);
+        }
+    else
+        return (tm->end.low - tm->start.low) * 1000L;
+}
+
+/****************************************************************************
+REMARKS:
+Define the resolution of the long period timer as microseconds per timer tick.
+****************************************************************************/
+#define ULZTIMER_RESOLUTION     1000
+
+/****************************************************************************
+REMARKS:
+Read the Long Period timer from the OS
+****************************************************************************/
+static ulong __ULZReadTime(void)
+{ return timeGetTime(); }
+
+/****************************************************************************
+REMARKS:
+Compute the elapsed time from the BIOS timer tick. Note that we check to see
+whether a midnight boundary has passed, and if so adjust the finish time to
+account for this. We cannot detect if more that one midnight boundary has
+passed, so if this happens we will be generating erronous results.
+****************************************************************************/
+ulong __ULZElapsedTime(ulong start,ulong finish)
+{ return finish - start; }
-- 
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