text: /*	$NetBSD: pciio.h,v 1.2 2001/09/14 06:09:42 simonb Exp $	*/
  
  /*
   * Copyright 2001 Wasabi Systems, Inc.
   * All rights reserved.
   *
   * Written by Jason R. Thorpe for Wasabi Systems, Inc.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *	This product includes software developed for the NetBSD Project by
   *	Wasabi Systems, Inc.
   * 4. The name of Wasabi Systems, Inc. may not be used to endorse
   *    or promote products derived from this software without specific prior
   *    written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
   * 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.
   */
  
  #ifndef _DEV_PCI_PCIIO_H_
  #define	_DEV_PCI_PCIIO_H_
  
  /*
   * User -> kernel interface for PCI bus access.
   */
  
  #include <sys/ioccom.h>
  
  /*
   * pciio_cfgreg:
   *
   *	Representation of a PCI config space register.
   */
  struct pciio_cfgreg {
  	u_int	 reg;	/* offset into PCI configuration space */
  	uint32_t val;	/* value of the register */
  };
  
  /*
   * Read and write PCI configuration space registers on a
   * specific device.
   */
  #define	PCI_IOC_CFGREAD		_IOWR('P', 0, struct pciio_cfgreg)
  #define	PCI_IOC_CFGWRITE	 _IOW('P', 1, struct pciio_cfgreg)
  
  /*
   * pciio_bdf_cfgreg:
   *
   *	Like pciio_cfgreg, except for any bus/dev/func within
   *	a given PCI domain.
   */
  struct pciio_bdf_cfgreg {
  	u_int	bus;
  	u_int	device;
  	u_int	function;
  	struct pciio_cfgreg cfgreg;
  };
  
  /*
   * Read and write PCI configuration space registers on any
   * device within a given PCI domain.
   */
  #define	PCI_IOC_BDF_CFGREAD	_IOWR('P', 2, struct pciio_bdf_cfgreg)
  #define	PCI_IOC_BDF_CFGWRITE	 _IOW('P', 3, struct pciio_bdf_cfgreg)
  
  /*
   * pciio_businfo:
   *
   *	Information for a PCI bus (autconfiguration node) instance.
   */
  struct pciio_businfo {
  	u_int	busno;		/* bus number */
  	u_int	maxdevs;	/* max devices on bus */
  };
  
  #define	PCI_IOC_BUSINFO		 _IOR('P', 4, struct pciio_businfo)
  
  #endif /* _DEV_PCI_PCIIO_H_ */
  