sys/arch/powerpc/include/ibm4xx/pci_machdep.h

   1 /*      $NetBSD: pci_machdep.h,v 1.1.2.4 2005/11/10 13:58:26 skrll Exp $        */
   2
   3 /*
   4  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
   5  * Copyright (c) 1994 Charles M. Hannum.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Charles M. Hannum.
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 /*
  34  * Machine-specific definitions for PCI autoconfiguration.
  35  */
  36
  37 #define __HAVE_PCI_CONF_HOOK
  38
  39 /*
  40  * Forward declarations.
  41  */
  42 struct pci_attach_args;
  43
  44 /*
  45  * macppc-specific PCI structure and type definitions.
  46  * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
  47  *
  48  * Configuration tag; created from a {bus,device,function} triplet by
  49  * pci_make_tag(), and passed to pci_conf_read() and pci_conf_write().
  50  * We could instead always pass the {bus,device,function} triplet to
  51  * the read and write routines, but this would cause extra overhead.
  52  */
  53
  54 /*
  55  * Types provided to machine-independent PCI code
  56  */
  57 typedef struct ibm4xx_pci_chipset *pci_chipset_tag_t;
  58 typedef int pcitag_t;
  59 typedef int pci_intr_handle_t;
  60
  61 struct ibm4xx_pci_chipset {
  62         int rootnode;           /* PCI controller */
  63         struct extent *ioext;   /* PCI I/O extent */
  64         struct extent *memext;  /* PCI memory extent */
  65 };
  66
  67 /*
  68  * Functions provided to machine-independent PCI code.
  69  */
  70 void            pci_attach_hook(struct device *, struct device *,
  71                     struct pcibus_attach_args *);
  72 int             pci_bus_maxdevs(pci_chipset_tag_t, int);
  73 pcitag_t        pci_make_tag(pci_chipset_tag_t, int, int, int);
  74 void            pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
  75                     int *, int *, int *);
  76 pcireg_t        pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
  77 void            pci_conf_write(pci_chipset_tag_t, pcitag_t, int,
  78                     pcireg_t);
  79 int             pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
  80 const char      *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
  81 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t);
  82 void            *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
  83                     int, int (*)(void *), void *);
  84 void            pci_intr_disestablish(pci_chipset_tag_t, void *);
  85 int             pci_conf_hook(pci_chipset_tag_t, int, int, int, pcireg_t);
  86
  87 void            pci_machdep_init(void);
  88
  89
  90 /*
  91  * Internal functions.
  92  */
  93 void            pci_init(int);