device.hh revision 793 
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"
38class PCIConfigAll;
39
40/*
41 * PCI device configuration device.
42 * Each device is connected to a PCIConfigSpace device
43 * which returns -1 for everything but the pcidevs that
44 * register with it. This object registers with the PCIConfig space
45 * object.
46 */
47class PciDev : public MMapDevice
48{
49  private:
50    uint32_t Bus;
51    uint32_t Device;
52    uint32_t Function;
53  public:
54    PciDev(const std::string &name, PCIConfigAll *cf, uint32_t bus,
55           uint32_t dev, uint32_t func);
56
57    PCIConfigAll *ConfigSpace;
58    PCIConfig config;
59    uint32_t BARSize[6];
60
61    virtual void WriteConfig(int offset, int size, uint32_t data);
62    virtual void ReadConfig(int offset, int size, uint8_t *data);
63
64
65    virtual void serialize(std::ostream &os);
66    virtual void unserialize(Checkpoint *cp, const std::string &section);
67};
68
69#endif // __PCI_DEV_HH__
70