dtod.hh revision 3914:e83101d984d5
1/* 2 * Copyright (c) 206, 2004-2005 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: Ali Saidi 29 */ 30 31/** @file 32 * This device acts as a simple time of date device. It's implemented as a 33 * simple device register read. 34 */ 35 36#ifndef __DEV_SPARC_DTOD_HH__ 37#define __DEV_SPARC_DTOD_HH__ 38 39#include "base/range.hh" 40#include "dev/io_device.hh" 41 42 43/** 44 * DumbTOD simply returns some idea of time when read. Until we finish with 45 * legion it starts with the start time and increments itself by 1000 each time. 46 */ 47class DumbTOD : public BasicPioDevice 48{ 49 private: 50 uint64_t todTime; 51 52 public: 53 struct Params : public BasicPioDevice::Params 54 { 55 time_t init_time; 56 }; 57 protected: 58 const Params *params() const { return (const Params *)_params; } 59 60 public: 61 DumbTOD(Params *p); 62 63 virtual Tick read(PacketPtr pkt); 64 virtual Tick write(PacketPtr pkt); 65}; 66 67#endif // __DEV_BADDEV_HH__ 68