/*
   "bus_resources_portio.h"

   created by: grayspace aka J. Leveille
   for: UbixOS Project
   date: May 12, 2002

   purpose: for port IO resource management

   $Id$
*/

#ifndef _BUS_RESOURCES_PORTIO_H
#define _BUS_RESOURCES_PORTIO_H

/* for managing port IO ranges */
typedef struct tagBUS_PORTIO_POOL
{
   DWORDg a_addrs[(1<<(MAXBITS_PORTIO_ADDR-5))];
}
BUS_PORTIO_POOL;

/* checks a range of port addresses
   returns:
      - 1 if the range is comptetely empty
      - 0 otherwise                          */
int BUS_PORTIO_CheckRange( BUS_PORTIO_POOL * p_bpp,
                           DWORDg baseaddr,
                           DWORDg overaddr         );

/* allocates a range of port addresses
   returns:
      - 1 on success
      - 0 on failure    */
int BUS_PORTIO_AllocateRange( BUS_PORTIO_POOL * p_bpp,
                              DWORDg baseaddr,
                              DWORDg overaddr         );

/* frees a range of port addresses
   returns:
      - 1 if any port addresses in the range were allocated
      - 0 otherwise                                         */
int BUS_PORTIO_FreeRange(  BUS_PORTIO_POOL * p_bpp,
                           DWORDg baseaddr,
                           DWORDg overaddr         );

#endif /* _BUS_RESOURCES_PORTIO_H */