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;

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51 * with which it returns the address ranges it is interested in.
52 */
53class PioPort : public SimpleTimingPort
54{
55 protected:
56 /** The device that this port serves. */
57 PioDevice *device;
58
59 virtual Tick recvAtomic(Packet *pkt);
60
61 virtual void getDeviceAddressRanges(AddrRangeList &resp,
62 AddrRangeList &snoop);
63
64 public:
65
66 PioPort(PioDevice *dev, System *s, std::string pname = "-pioport");
67};
68
69
70class DmaPort : public Port
71{
72 protected:
73 struct DmaReqState : public Packet::SenderState
74 {

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153 System *sys;
154
155 /** The pioPort that handles the requests for us and provides us requests
156 * that it sees. */
157 PioPort *pioPort;
158
159 virtual void addressRanges(AddrRangeList &range_list) = 0;
160
161 /** Pure virtual function that the device must implement. Called
162 * when a read command is recieved by the port.
163 * @param pkt Packet describing this request
164 * @return number of ticks it took to complete
165 */
166 virtual Tick read(Packet *pkt) = 0;
167
168 /** Pure virtual function that the device must implement. Called when a

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