diff options
author | Gabe Black <gblack@eecs.umich.edu> | 2008-10-11 02:16:11 -0700 |
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committer | Gabe Black <gblack@eecs.umich.edu> | 2008-10-11 02:16:11 -0700 |
commit | bc2217eefc8db831b72dfdcae7ecc9bd95a31c3c (patch) | |
tree | c4ef2e5783840b9dd8b2e76c19daaf77a2b90a8a /src/dev/x86/i8254.hh | |
parent | a6600fdd8885f9765c859935a5c97d9017653745 (diff) | |
download | gem5-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.hh | 96 |
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 index 000000000..9528013c8 --- /dev/null +++ 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__ |