i8254.hh revision 5443
1/* 2 * Copyright (c) 2008 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Gabe Black 29 */ 30 31#ifndef __DEV_X86_SOUTH_BRIDGE_I8254_HH__ 32#define __DEV_X86_SOUTH_BRIDGE_I8254_HH__ 33 34#include "arch/x86/x86_traits.hh" 35#include "base/range.hh" 36#include "dev/intel_8254_timer.hh" 37#include "dev/x86/south_bridge/sub_device.hh" 38 39#include <string> 40 41namespace X86ISA 42{ 43 44class I8254 : public SubDevice 45{ 46 protected: 47 Intel8254Timer pit; 48 49 public: 50 51 I8254(const std::string &name) : pit(name) 52 {} 53 I8254(const std::string &name, Tick _latency) : 54 SubDevice(_latency), pit(name) 55 {} 56 I8254(const std::string &name, Addr start, Addr size, Tick _latency) : 57 SubDevice(start, size, _latency), pit(name) 58 {} 59 60 Tick read(PacketPtr pkt); 61 62 Tick write(PacketPtr pkt); 63}; 64 65}; // namespace X86ISA 66 67#endif //__DEV_X86_SOUTH_BRIDGE_I8254_HH__ 68