1/* 2 * Copyright (c) 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 * Andrew Schultz 30 * Miguel Serrano 31 */ 32 33#ifndef __DEV_MC146818_HH__ 34#define __DEV_MC146818_HH__ 35 36#include "base/range.hh" 37#include "sim/eventq.hh" 38 39/** Real-Time Clock (MC146818) */ 40class MC146818 : public EventManager 41{ 42 protected: 43 virtual void handleEvent() 44 { 45 warn("No RTC event handler defined.\n"); 46 } 47 48 private: 49 /** Event for RTC periodic interrupt */ 50 struct RTCEvent : public Event 51 { 52 MC146818 * parent; 53 Tick interval; 54 55 RTCEvent(MC146818 * _parent, Tick i); 56 57 /** Schedule the RTC periodic interrupt */ 58 void scheduleIntr(); 59 60 /** Event process to occur at interrupt*/ 61 virtual void process(); 62 63 /** Event description */ 64 virtual const char *description() const; 65 }; 66 67 /** Event for RTC periodic interrupt */ 68 struct RTCTickEvent : public Event 69 { 70 MC146818 * parent; 71 72 RTCTickEvent(MC146818 * _parent) : parent(_parent) 73 { 74 parent->schedule(this, curTick + SimClock::Int::s); 75 } 76 77 /** Event process to occur at interrupt*/ 78 void process(); 79 80 /** Event description */ 81 const char *description() const; 82 }; 83 84 private: 85 std::string _name; 86 const std::string &name() const { return _name; } 87 88 /** RTC periodic interrupt event */ 89 RTCEvent event; 90 91 /** RTC tick event */ 92 RTCTickEvent tickEvent; 93 94 /** Data for real-time clock function */ 95 union { 96 uint8_t clock_data[10]; 97 98 struct { 99 uint8_t sec; 100 uint8_t sec_alrm; 101 uint8_t min; 102 uint8_t min_alrm; 103 uint8_t hour; 104 uint8_t hour_alrm; 105 uint8_t wday; 106 uint8_t mday; 107 uint8_t mon; 108 uint8_t year; 109 }; 110 }; 111 112 struct tm curTime; 113 114 void setTime(const struct tm time); 115 116 /** RTC status register A */ 117 uint8_t stat_regA; 118 119 /** RTC status register B */ 120 uint8_t stat_regB; 121
| 1/* 2 * Copyright (c) 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 * Andrew Schultz 30 * Miguel Serrano 31 */ 32 33#ifndef __DEV_MC146818_HH__ 34#define __DEV_MC146818_HH__ 35 36#include "base/range.hh" 37#include "sim/eventq.hh" 38 39/** Real-Time Clock (MC146818) */ 40class MC146818 : public EventManager 41{ 42 protected: 43 virtual void handleEvent() 44 { 45 warn("No RTC event handler defined.\n"); 46 } 47 48 private: 49 /** Event for RTC periodic interrupt */ 50 struct RTCEvent : public Event 51 { 52 MC146818 * parent; 53 Tick interval; 54 55 RTCEvent(MC146818 * _parent, Tick i); 56 57 /** Schedule the RTC periodic interrupt */ 58 void scheduleIntr(); 59 60 /** Event process to occur at interrupt*/ 61 virtual void process(); 62 63 /** Event description */ 64 virtual const char *description() const; 65 }; 66 67 /** Event for RTC periodic interrupt */ 68 struct RTCTickEvent : public Event 69 { 70 MC146818 * parent; 71 72 RTCTickEvent(MC146818 * _parent) : parent(_parent) 73 { 74 parent->schedule(this, curTick + SimClock::Int::s); 75 } 76 77 /** Event process to occur at interrupt*/ 78 void process(); 79 80 /** Event description */ 81 const char *description() const; 82 }; 83 84 private: 85 std::string _name; 86 const std::string &name() const { return _name; } 87 88 /** RTC periodic interrupt event */ 89 RTCEvent event; 90 91 /** RTC tick event */ 92 RTCTickEvent tickEvent; 93 94 /** Data for real-time clock function */ 95 union { 96 uint8_t clock_data[10]; 97 98 struct { 99 uint8_t sec; 100 uint8_t sec_alrm; 101 uint8_t min; 102 uint8_t min_alrm; 103 uint8_t hour; 104 uint8_t hour_alrm; 105 uint8_t wday; 106 uint8_t mday; 107 uint8_t mon; 108 uint8_t year; 109 }; 110 }; 111 112 struct tm curTime; 113 114 void setTime(const struct tm time); 115 116 /** RTC status register A */ 117 uint8_t stat_regA; 118 119 /** RTC status register B */ 120 uint8_t stat_regB; 121
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122 public: 123 MC146818(EventManager *em, const std::string &name, const struct tm time, 124 bool bcd, Tick frequency); 125 virtual ~MC146818(); 126 127 /** RTC write data */ 128 void writeData(const uint8_t addr, const uint8_t data); 129 130 /** RTC read data */ 131 uint8_t readData(const uint8_t addr); 132 133 void tickClock(); 134
| 126 public: 127 MC146818(EventManager *em, const std::string &name, const struct tm time, 128 bool bcd, Tick frequency); 129 virtual ~MC146818(); 130 131 /** RTC write data */ 132 void writeData(const uint8_t addr, const uint8_t data); 133 134 /** RTC read data */ 135 uint8_t readData(const uint8_t addr); 136 137 void tickClock(); 138
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135 /** 136 * Serialize this object to the given output stream. 137 * @param base The base name of the counter object. 138 * @param os The stream to serialize to. 139 */ 140 void serialize(const std::string &base, std::ostream &os); 141 142 /** 143 * Reconstruct the state of this object from a checkpoint. 144 * @param base The base name of the counter object. 145 * @param cp The checkpoint use. 146 * @param section The section name of this object 147 */ 148 void unserialize(const std::string &base, Checkpoint *cp, 149 const std::string §ion); 150}; 151 152#endif // __DEV_MC146818_HH__
| 141 /** 142 * Serialize this object to the given output stream. 143 * @param base The base name of the counter object. 144 * @param os The stream to serialize to. 145 */ 146 void serialize(const std::string &base, std::ostream &os); 147 148 /** 149 * Reconstruct the state of this object from a checkpoint. 150 * @param base The base name of the counter object. 151 * @param cp The checkpoint use. 152 * @param section The section name of this object 153 */ 154 void unserialize(const std::string &base, Checkpoint *cp, 155 const std::string §ion); 156}; 157 158#endif // __DEV_MC146818_HH__
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