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authorGabe Black <gblack@eecs.umich.edu>2008-10-11 02:16:11 -0700
committerGabe Black <gblack@eecs.umich.edu>2008-10-11 02:16:11 -0700
commitbc2217eefc8db831b72dfdcae7ecc9bd95a31c3c (patch)
treec4ef2e5783840b9dd8b2e76c19daaf77a2b90a8a /src/dev/x86/speaker.hh
parenta6600fdd8885f9765c859935a5c97d9017653745 (diff)
downloadgem5-bc2217eefc8db831b72dfdcae7ecc9bd95a31c3c.tar.xz
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
Diffstat (limited to 'src/dev/x86/speaker.hh')
-rw-r--r--src/dev/x86/speaker.hh79
1 files changed, 79 insertions, 0 deletions
diff --git a/src/dev/x86/speaker.hh b/src/dev/x86/speaker.hh
new file mode 100644
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+++ b/src/dev/x86/speaker.hh
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+/*
+ * 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
+ */
+
+#ifndef __DEV_X86_SPEAKER_HH__
+#define __DEV_X86_SPEAKER_HH__
+
+#include "base/bitunion.hh"
+#include "params/PcSpeaker.hh"
+
+namespace X86ISA
+{
+
+class I8254;
+
+class Speaker : public BasicPioDevice
+{
+ protected:
+ Tick latency;
+
+ BitUnion8(SpeakerControl)
+ Bitfield<0> gate;
+ Bitfield<1> speaker;
+ Bitfield<5> timer;
+ EndBitUnion(SpeakerControl)
+
+ SpeakerControl controlVal;
+
+ I8254 * timer;
+
+ public:
+ typedef PcSpeakerParams Params;
+
+ const Params *
+ params() const
+ {
+ return dynamic_cast<const Params *>(_params);
+ }
+
+ Speaker(Params *p) : BasicPioDevice(p),
+ latency(p->pio_latency), timer(p->i8254)
+ {
+ pioSize = 1;
+ }
+
+ Tick read(PacketPtr pkt);
+
+ Tick write(PacketPtr pkt);
+};
+
+}; // namespace X86ISA
+
+#endif //__DEV_X86_SPEAKER_HH__