Changeset 2538 in vbox for trunk/src/VBox/Devices/PC

Timestamp:

May 8, 2007 3:04:53 PM (18 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

20977

Message:

Quick implementation of IRQ level flip-flip (pass PDM_IRQ_LEVEL_FLIP_FLOP as the level).

Location:

trunk/src/VBox/Devices/PC

Files:

• DevAPIC.cpp (modified) (1 diff)
• DevPIC.cpp (modified) (1 diff)

trunk/src/VBox/Devices/PC/DevAPIC.cpp

@@ -1288 +1288 @@
                 s->irr |= mask;
                 ioapic_service(s);
+#ifdef VBOX
+                if ((level & PDM_IRQ_LEVEL_FLIP_FLOP) == PDM_IRQ_LEVEL_FLIP_FLOP) {
+                    s->irr &= ~mask;
+                }
+#endif
             } else {
                 s->irr &= ~mask;

trunk/src/VBox/Devices/PC/DevPIC.cpp

@@ -353 +353 @@
     DumpPICState(&pData->aPics[1], "picSetIrq");
     STAM_COUNTER_INC(&pData->CTXSUFF(StatSetIrq));
-    pic_set_irq1(&pData->aPics[iIrq >> 3], iIrq & 7, iLevel);
+    pic_set_irq1(&pData->aPics[iIrq >> 3], iIrq & 7, iLevel & PDM_IRQ_LEVEL_HIGH);
     pic_update_irq(pData);
+    if ((iLevel & PDM_IRQ_LEVEL_FLIP_FLOP) == PDM_IRQ_LEVEL_FLIP_FLOP)
+    {
+        pic_set_irq1(&pData->aPics[iIrq >> 3], iIrq & 7, 0);
+        pic_update_irq(pData);
+    }
 }