sys/arch/prep/include/pcipnp.h

   1 /* $NetBSD: pcipnp.h,v 1.1 2006/05/30 23:56:38 garbled Exp $ */
   2 /*-
   3  * Copyright (c) 2006 The NetBSD Foundation, Inc.
   4  * All rights reserved.
   5  *
   6  * This code is derived from software contributed to The NetBSD Foundation
   7  * by Tim Rightnour
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  */
  30 /*
  31  * Based on:
  32  * IBM Power Personal Systems Architecture: Residual Data
  33  * Document Number: PPS-AR-FW0001 Rev 0.5  April 3, 1996
  34  */
  35
  36 #ifndef _PCIPNP_H_
  37 #define _PCIPNP_H_
  38
  39 #define MAX_PCI_INTRS   4
  40
  41 typedef enum _IntrTypes {
  42         IntrInvalid = 0,
  43         Intr8259 = 1,
  44         IntrMPIC = 2,
  45         IntrRS6K = 3
  46 } _IntrTypes;
  47
  48 /* PCI to system conversion map */
  49 typedef struct _IntrMap {
  50         uint8_t slotnum;                /* First = 1, integrated = 0 */
  51         uint8_t devfunc;
  52         uint8_t intrctrltype;           /* interrupt type */
  53         uint8_t intrctrlnum;            /* 8259 = 0
  54                                          * MPIC = 1
  55                                          * RS6K = buid ???? */
  56         uint16_t intr[MAX_PCI_INTRS];   /* Index 0-3 == A-D
  57                                          * 0xFFFF == not usable
  58                                          * 0x8nnn == edge sensitive
  59                                          */
  60 } IntrMap;
  61
  62 typedef struct _PCIInfoPack {
  63         uint8_t tag;                    /* large tag = 0x84 */
  64         uint8_t count0;
  65         uint8_t count1;
  66           /* count = number of PCI slots * sizeof(IntrMap) + 21 */
  67         uint8_t type;                   /* == 3 PCI Bridge */
  68         uint8_t configbaseaddr[8];      /* Base addr of PCI configuration
  69                                          *   system real address */
  70         uint8_t configbasedata[8];      /* base addr of PCI config data
  71                                          *   system real address */
  72         uint8_t busnum;                 /* PCI Bus Number */
  73         uint8_t reserved[3];            /* reserved, padded with 0 */
  74         IntrMap map[1];                 /* Interrupt map array for each PCI
  75                                          * slots that are pluggable.
  76                                          * number = (count-21)/sizeof(IntrMap)*/
  77 } PCIInfoPack;
  78
  79 #endif /* _PCIPNP_H_ */