FreeBSD/Linux Kernel Cross Reference
sys/dev/pci/pciio.h

     /*      $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_ */

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