X86: Change I8254 and PCSpeaker devices from subdevices to SimObjects and eliminate subdevices.

--HG--
rename : src/dev/x86/south_bridge/i8254.cc => src/dev/x86/i8254.cc
rename : src/dev/x86/south_bridge/i8254.hh => src/dev/x86/i8254.hh
rename : src/dev/x86/south_bridge/speaker.cc => src/dev/x86/speaker.cc
rename : src/dev/x86/south_bridge/speaker.hh => src/dev/x86/speaker.hh

1 files changed, 69 insertions, 0 deletions

diff --git a/src/dev/x86/i8254.cc b/src/dev/x86/i8254.cc
new file mode 100644
index 000000000..cc7c48980
--- /dev/null
+++ b/src/dev/x86/i8254.cc
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2008 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 "dev/x86/i8254.hh"
+#include "mem/packet.hh"
+#include "mem/packet_access.hh"
+
+Tick
+X86ISA::I8254::read(PacketPtr pkt)
+{
+    assert(pkt->getSize() == 1);
+    Addr offset = pkt->getAddr() - pioAddr;
+    if (offset < 3) {
+        pkt->set(pit.readCounter(offset));
+    } else if (offset == 3) {
+        pkt->set(uint8_t(-1));
+    } else {
+        panic("Read from undefined i8254 register.\n");
+    }
+    return latency;
+}
+
+Tick
+X86ISA::I8254::write(PacketPtr pkt)
+{
+    assert(pkt->getSize() == 1);
+    Addr offset = pkt->getAddr() - pioAddr;
+    if (offset < 3) {
+        pit.writeCounter(offset, pkt->get<uint8_t>());
+    } else if (offset == 3) {
+        pit.writeControl(pkt->get<uint8_t>());
+    } else {
+        panic("Write to undefined i8254 register.\n");
+    }
+    return latency;
+}
+
+X86ISA::I8254 *
+I8254Params::create()
+{
+    return new X86ISA::I8254(this);
+}