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/*
 *                               POK header
 * 
 * The following file is a part of the POK project. Any modification should
 * made according to the POK licence. You CANNOT use this file or a part of
 * this file is this part of a file for your own project
 *
 * For more information on the POK licence, please see our LICENCE FILE
 *
 * Please follow the coding guidelines described in doc/CODING_GUIDELINES
 *
 *                                      Copyright (c) 2007-2009 POK team 
 *
 * Created by laurent on Mon Jun 08 11:03:02 2009 
 */


#ifdef POK_NEEDS_PCI

# ifndef __POK_x86_PCI_H__
#  define __POK_X86_PCI_H__

#  include <arch/x86/ioports.h>
#  include <core/syscall.h>
#  include <core/partition.h>

/*
 * PCI configuration registers
 */
#  define PCI_CONFIG_ADDRESS    0xCF8
#  define PCI_CONFIG_DATA       0xCFC

/*
 * Configuration space registers
 */
#  define PCI_REG_VENDORID      0x00
#  define PCI_REG_DEVICEID      0x02
#  define PCI_REG_HEADERTYPE    0x0E
#  define PCI_REG_BAR0          0x10
#  define PCI_REG_IRQLINE       0x3C

/*
 * Useful defines...
 */
#  define PCI_BUS_MAX           8
#  define PCI_DEV_MAX           32
#  define PCI_FUN_MAX           8

/*
 * Structure to holds some device information
 */
typedef struct
{
  uint16_t      bus;
  uint16_t      dev;
  uint16_t      fun;
  uint16_t      vendorid;
  uint16_t      deviceid;
  uint16_t      irq_line;
  uint16_t      io_range;
  uint32_t      bar[6];
  uint32_t      addr;
  void*         irq_handler;
} s_pci_device;

pok_ret_t pci_register(s_pci_device* dev, uint8_t part_id);

# endif /* __POK_X86_PCI_H__ */
#endif /* POK_NEEDS_PCI */