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      1 /* $NetBSD: pcipnp.h,v 1.2 2008/04/28 20:23:33 martin 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_ */
     80