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author | Gabe Black <gblack@eecs.umich.edu> | 2008-10-11 01:22:20 -0700 |
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committer | Gabe Black <gblack@eecs.umich.edu> | 2008-10-11 01:22:20 -0700 |
commit | 2753c07dc5131972d1dcbb7628e2f0712c778fec (patch) | |
tree | 1088254bfb5c9bcc4121cdfc6acfcf6c52c0d2d2 /src/dev/x86/i8259.hh | |
parent | f22c7d48f3b99994c697075f5cc3b59c72f84092 (diff) | |
download | gem5-2753c07dc5131972d1dcbb7628e2f0712c778fec.tar.xz |
X86: Change the I8259 from a subdevice into a real SimObject.
--HG--
rename : src/dev/x86/south_bridge/i8259.cc => src/dev/x86/i8259.cc
rename : src/dev/x86/south_bridge/i8259.hh => src/dev/x86/i8259.hh
Diffstat (limited to 'src/dev/x86/i8259.hh')
-rw-r--r-- | src/dev/x86/i8259.hh | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/dev/x86/i8259.hh b/src/dev/x86/i8259.hh new file mode 100644 index 000000000..a2f245513 --- /dev/null +++ b/src/dev/x86/i8259.hh @@ -0,0 +1,69 @@ +/* + * 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 + */ + +#ifndef __DEV_X86_I8259_HH__ +#define __DEV_X86_I8259_HH__ + +#include "dev/io_device.hh" +#include "params/I8259.hh" + +namespace X86ISA +{ + +class I8259 : public BasicPioDevice +{ + protected: + Tick latency; + bool master; + + public: + typedef I8259Params Params; + + const Params * + params() const + { + return dynamic_cast<const Params *>(_params); + } + + I8259(Params * p) : BasicPioDevice(p) + { + pioSize = 2; + latency = p->pio_latency; + master = p->master; + } + + Tick read(PacketPtr pkt); + + Tick write(PacketPtr pkt); +}; + +}; // namespace X86ISA + +#endif //__DEV_X86_I8259_HH__ |