dev/pcidev.hh

   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 class 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  */
  47 class 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__