device.hh revision 795 
1/*
2 * Copyright (c) 2003 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
29/* @file
30 * PCI configspace devices
31 */
32
33#ifndef __PCI_DEV_HH__
34#define __PCI_DEV_HH__
35
36#include "mem/functional_mem/mmap_device.hh"
37#include "dev/pcireg.h"
38
39class PCIConfigAll;
40
41/**
42 * PCI device, base implemnation is only config space.
43 * Each device is connected to a PCIConfigSpace device
44 * which returns -1 for everything but the pcidevs that
45 * register with it. This object registers with the PCIConfig space
46 * object.
47 */
48class PciDev : public MmapDevice
49{
50  private:
51    uint32_t Bus;
52    uint32_t Device;
53    uint32_t Function;
54  public:
55    PciDev(const std::string &name, PCIConfigAll *cf, uint32_t bus,
56           uint32_t dev, uint32_t func);
57
58    PCIConfigAll *ConfigSpace;
59    PCIConfig config;
60    uint32_t BARSize[6];
61    Addr BARAddrs[6];
62
63    virtual void WriteConfig(int offset, int size, uint32_t data);
64    virtual void ReadConfig(int offset, int size, uint8_t *data);
65
66
67    virtual void serialize(std::ostream &os);
68    virtual void unserialize(Checkpoint *cp, const std::string &section);
69};
70
71#endif // __PCI_DEV_HH__
72