i8259.hh (5656:f548d22a2f71) | i8259.hh (5657:7539092b28ac) |
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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; --- 25 unchanged lines hidden (view full) --- 34#include "dev/io_device.hh" 35#include "dev/x86/intdev.hh" 36#include "params/I8259.hh" 37#include "enums/X86I8259CascadeMode.hh" 38 39namespace X86ISA 40{ 41 | 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; --- 25 unchanged lines hidden (view full) --- 34#include "dev/io_device.hh" 35#include "dev/x86/intdev.hh" 36#include "params/I8259.hh" 37#include "enums/X86I8259CascadeMode.hh" 38 39namespace X86ISA 40{ 41 |
42class I82094AA; 43 |
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42class I8259 : public BasicPioDevice, public IntDev 43{ 44 protected: | 44class I8259 : public BasicPioDevice, public IntDev 45{ 46 protected: |
47 static const int NumLines = 8; 48 |
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45 Tick latency; 46 IntPin *output; 47 Enums::X86I8259CascadeMode mode; | 49 Tick latency; 50 IntPin *output; 51 Enums::X86I8259CascadeMode mode; |
52 I8259 * slave; |
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48 49 // Interrupt Request Register 50 uint8_t IRR; 51 // In Service Register 52 uint8_t ISR; 53 // Interrupt Mask Register 54 uint8_t IMR; 55 --- 16 unchanged lines hidden (view full) --- 72 typedef I8259Params Params; 73 74 const Params * 75 params() const 76 { 77 return dynamic_cast<const Params *>(_params); 78 } 79 | 53 54 // Interrupt Request Register 55 uint8_t IRR; 56 // In Service Register 57 uint8_t ISR; 58 // Interrupt Mask Register 59 uint8_t IMR; 60 --- 16 unchanged lines hidden (view full) --- 77 typedef I8259Params Params; 78 79 const Params * 80 params() const 81 { 82 return dynamic_cast<const Params *>(_params); 83 } 84 |
80 I8259(Params * p) : BasicPioDevice(p), IntDev(this), 81 latency(p->pio_latency), output(p->output), 82 mode(p->mode), IRR(0), ISR(0), IMR(0), 83 vectorOffset(0), readIRR(true), initControlWord(0) | 85 I8259(Params * p); 86 87 void 88 setSlave(I8259 * _slave) |
84 { | 89 { |
85 pioSize = 2; | 90 slave = _slave; |
86 } 87 88 Tick read(PacketPtr pkt); | 91 } 92 93 Tick read(PacketPtr pkt); |
89 | |
90 Tick write(PacketPtr pkt); 91 92 void signalInterrupt(int line); | 94 Tick write(PacketPtr pkt); 95 96 void signalInterrupt(int line); |
97 int getVector(); |
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93}; 94 95}; // namespace X86ISA 96 97#endif //__DEV_X86_I8259_HH__ | 98}; 99 100}; // namespace X86ISA 101 102#endif //__DEV_X86_I8259_HH__ |