1 files changed, 86 insertions, 0 deletions
diff --git a/src/dev/x86/south_bridge/south_bridge.cc b/src/dev/x86/south_bridge/south_bridge.cc
new file mode 100644
index 000000000..f25b3b811
--- /dev/null
+++ b/src/dev/x86/south_bridge/south_bridge.cc
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Gabe Black
+ */
+
+#include "arch/x86/x86_traits.hh"
+#include "base/range.hh"
+#include "dev/x86/south_bridge/south_bridge.hh"
+
+using namespace X86ISA;
+
+void
+SouthBridge::addDevice(X86ISA::SubDevice & sub)
+{
+    rangeList.push_back(sub.addrRange);
+    rangeMap.insert(sub.addrRange, &sub);
+}
+
+void
+SouthBridge::addressRanges(AddrRangeList &range_list)
+{
+    range_list = rangeList;
+}
+
+Tick
+SouthBridge::read(PacketPtr pkt)
+{
+    RangeMapIt sub =
+        rangeMap.find(RangeSize(pkt->getAddr(), 1));
+    assert(sub != rangeMap.end());
+    return sub->second->read(pkt);
+}
+
+Tick
+SouthBridge::write(PacketPtr pkt)
+{
+    RangeMapIt sub =
+        rangeMap.find(RangeSize(pkt->getAddr(), 1));
+    assert(sub != rangeMap.end());
+    return sub->second->write(pkt);
+}
+
+SouthBridge::SouthBridge(const Params *p) : PioDevice(p),
+    pic1(0x20, 2, p->pio_latency),
+    pic2(0xA0, 2, p->pio_latency),
+    pit(0x40, 4, p->pio_latency),
+    cmos(0x70, 2, p->pio_latency),
+    speaker(0x61, 1, p->pio_latency)
+{
+    addDevice(pic1);
+    addDevice(pic2);
+    addDevice(pit);
+    addDevice(cmos);
+    addDevice(speaker);
+}
+
+SouthBridge *
+SouthBridgeParams::create()
+{
+    return new SouthBridge(this);
+}