/**************************************************************************************
 Copyright (c) 2002 The UbixOS Project
 All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions, the following disclaimer and the list of authors.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions, the following disclaimer and the list of authors
in the documentation and/or other materials provided with the distribution. Neither the name of the UbixOS Project nor the names of its
contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 $Id$

**************************************************************************************/

#ifndef _PCI_H
#define _PCI_H

#include <ubixos/types.h>


struct pciConfig {
  uInt16 vendorId;
  uInt16 deviceId;

  uInt16 command;
  uInt16 status;

  uInt8  revisionId;
  uInt8  interface;
  uInt8  subClass;
  uInt8  baseClass;

  uInt8  cacheLineSize;
  uInt8  latencyTimer;
  uInt8  headerType;
  uInt8  bist;

  /* device info */
  uInt8  bus;
  uInt8  dev;
  uInt8  func;
  uInt8  irq;

  /* base registers */
  uInt32 base[6];
  uInt32 size[6];

  uInt16 subsysVendor;
  uInt16 subsys;
  
  };

struct confadd {
  uInt8 reg:8;
  uInt8 func:3;
  uInt8 dev:5;
  uInt8 bus:8;
  uInt8 rsvd:7;
  uInt8 enable:1;
  };

#define countof(a)     (sizeof(a) / sizeof(a[0]))
  
int pciInit();
bool pciProbe(int bus,int dev,int func,struct pciConfig *cfg);
uInt32 pciRead(int bus, int dev, int func, int reg, int bytes);
void pciWrite(int bus,int dev,int func,int reg,uInt32 v,int bytes);

#endif