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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/i8254.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/i8254.hh')
-rw-r--r--src/dev/x86/i8254.hh96
1 files changed, 96 insertions, 0 deletions
diff --git a/src/dev/x86/i8254.hh b/src/dev/x86/i8254.hh
new file mode 100644
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+++ b/src/dev/x86/i8254.hh
@@ -0,0 +1,96 @@
+/*
+ * 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_I8254_HH__
+#define __DEV_X86_I8254_HH__
+
+#include "dev/intel_8254_timer.hh"
+#include "dev/io_device.hh"
+#include "params/I8254.hh"
+
+namespace X86ISA
+{
+
+class IntPin;
+
+class I8254 : public BasicPioDevice
+{
+ protected:
+ Tick latency;
+ Intel8254Timer pit;
+
+ IntPin *intPin;
+
+ public:
+ typedef I8254Params Params;
+
+ const Params *
+ params() const
+ {
+ return dynamic_cast<const Params *>(_params);
+ }
+
+ I8254(Params *p) : BasicPioDevice(p), latency(p->pio_latency),
+ pit(this, p->name), intPin(p->int_pin)
+ {
+ pioSize = 4;
+ }
+ Tick read(PacketPtr pkt);
+
+ Tick write(PacketPtr pkt);
+
+ bool
+ outputHigh(unsigned int num)
+ {
+ return pit.outputHigh(num);
+ }
+
+ uint8_t
+ readCounter(unsigned int num)
+ {
+ return pit.readCounter(num);
+ }
+
+ void
+ writeCounter(unsigned int num, const uint8_t data)
+ {
+ pit.writeCounter(num, data);
+ }
+
+ void
+ writeControl(uint8_t val)
+ {
+ pit.writeControl(val);
+ }
+};
+
+}; // namespace X86ISA
+
+#endif //__DEV_X86_SOUTH_BRIDGE_I8254_HH__