FreeBSD/Linux Kernel Cross Reference
sys/pci/pcibus.h

     /**************************************************************************
     **
     ** $FreeBSD: src/sys/pci/pcibus.h,v 1.4.4.3 1999/09/05 08:21:23 peter Exp $
     **
     **  Declarations for pci bus driver.
     **
     **  FreeBSD
     **
     **-------------------------------------------------------------------------
    **
    ** Copyright (c) 1995 Wolfgang Stanglmeier.  All rights reserved.
    **
    ** 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. The name of the author may not be used to endorse or promote products
    **    derived from this software without specific prior written permission.
    **
    ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 __PCI_BUS_H__
    #define __PCI_BUS_H__   "pl1 95/03/13"
    
    /*-----------------------------------------------------------------
    **
    **      The following functions are provided by the pci bios.
    **      They are used only by the pci configuration.
    **
    **      pcibus_setup():
    **              Probes for a pci system.
    **              Sets pci_maxdevice and pci_mechanism.
    **
    **      pcibus_tag():
    **              Creates a handle for pci configuration space access.
    **              This handle is given to the read/write functions.
    **
    **      pcibus_ftag():
    **              Creates a modified handle.
    **
    **      pcibus_read():
    **              Read a long word from the pci configuration space.
    **              Requires a tag (from pcitag) and the register
    **              number (should be a long word alligned one).
    **
    **      pcibus_write():
    **              Writes a long word to the pci configuration space.
    **              Requires a tag (from pcitag), the register number
    **              (should be a long word alligned one), and a value.
    **
    **      pcibus_regirq():
    **              Register an interrupt handler for a pci device.
    **              Requires a tag (from pcitag), the register number
    **              (should be a long word alligned one), and a value.
    **
    **-----------------------------------------------------------------
    */
    
    struct pcibus {
            char     *pb_name;
            void    (*pb_setup )  (void);
            pcici_t (*pb_tag   )  (u_char bus, u_char device, u_char func);
            pcici_t (*pb_ftag  )  (pcici_t tag, u_char func);
            int     (*pb_bus   )  (pcici_t tag);
            int     (*pb_device)  (pcici_t tag);
            int     (*pb_function)(pcici_t tag);
            u_long  (*pb_read  )  (pcici_t tag, u_long reg);
            void    (*pb_write )  (pcici_t tag, u_long reg, u_long data);
            int     (*pb_iattach) (int irq, inthand2_t *func, int arg,
                                   unsigned *maskptr);
            int     (*pb_idetach) (int irq, inthand2_t *func);
            int     (*pb_imaskinc)(int irq, unsigned *maskptr);
            int     (*pb_imaskexc)(int irq, unsigned *maskptr);
    };
    
    #define PCI_MAX_IRQ   (16)
    
    /*
    **      The following structure should be generated by the driver
    */
    
    extern struct linker_set pcibus_set;
    
   int pci_register_lkm (struct pci_device *dvp, int if_revision);
   
   #endif

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