From 9b397ce7f45fc275f9004d78520628e2e7c0dd16 Mon Sep 17 00:00:00 2001
From: Ron Dreslinski <rdreslin@umich.edu>
Date: Fri, 23 Jan 2004 13:01:32 -0500
Subject: Add RTC event for uip bit

dev/tsunami_io.cc:
    Add RTC event to change the state of a uip bit
dev/tsunami_io.hh:
    Add RTC event to change state of an uip bit

--HG--
extra : convert_revision : acde7bdfe152d3e08f7ed53b4c8e910378f6ae67
---
 dev/tsunami_io.cc | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

(limited to 'dev/tsunami_io.cc')

diff --git a/dev/tsunami_io.cc b/dev/tsunami_io.cc
index eb0b9ae91..537e40a22 100644
--- a/dev/tsunami_io.cc
+++ b/dev/tsunami_io.cc
@@ -22,6 +22,38 @@
 #include "sim/system.hh"
 
 using namespace std;
+TsunamiIO::RTCEvent::RTCEvent()
+    : Event(&mainEventQueue)
+{
+    DPRINTF(Tsunami, "RTC Event Initilizing\n");
+    rtc_uip = 0;
+    schedule(curTick + (curTick % ticksPerSecond));
+}
+
+void
+TsunamiIO::RTCEvent::process()
+{
+    DPRINTF(Tsunami, "Timer Interrupt\n");
+    if (rtc_uip == 0) {
+        rtc_uip = 1; //Signal a second has occured
+        schedule(curTick + (curTick % ticksPerSecond) - 10);
+            }
+    else
+        rtc_uip = 0; //Done signaling second has occured
+        schedule(curTick + (curTick % ticksPerSecond));
+}
+
+const char *
+TsunamiIO::RTCEvent::description()
+{
+    return "tsunami RTC changte second";
+}
+
+uint8_t
+TsunamiIO::RTCEvent::rtc_uip_value()
+{
+    return rtc_uip;
+}
 
 TsunamiIO::ClockEvent::ClockEvent()
     : Event(&mainEventQueue)
-- 
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