/* $XFree86: xc/programs/Xserver/hw/xfree86/common_hw/xf86_PCI.h,v 3.0 1995/03/18 11:00:11 dawes Exp $ */
/*
 * Copyright 1995 by Robin Cutshaw <robin@XFree86.Org>
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the names of the above listed copyright holder(s)
 * not be used in advertising or publicity pertaining to distribution of 
 * the software without specific, written prior permission.  The above listed
 * copyright holder(s) make(s) no representations about the suitability of this 
 * software for any purpose.  It is provided "as is" without express or 
 * implied warranty.
 *
 * THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD 
 * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 
 * AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE 
 * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY 
 * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER 
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 */

#ifndef _XF86_PCI_H
#define _XF86_PCI_H 1

struct pci_config_reg {
    /* start of official PCI config space header */
    union {
        unsigned long device_vendor;
	struct {
	    unsigned short vendor;
	    unsigned short device;
	} dv;
    } dv_id;
#define _device_vendor dv_id.device_vendor
#define _vendor dv_id.dv.vendor
#define _device dv_id.dv.device
    union {
        unsigned long status_command;
	struct {
	    unsigned short command;
	    unsigned short status;
	} sc;
    } stat_cmd;
#define _status_command stat_cmd.status_command
#define _command stat_cmd.sc.command
#define _status  stat_cmd.sc.status
    union {
        unsigned long class_revision;
	struct {
	    unsigned char rev_id;
	    unsigned char prog_if;
	    unsigned char sub_class;
	    unsigned char base_class;
	} cr;
    } class_rev;
#define _class_revision class_rev.class_revision
#define _rev_id     class_rev.cr.rev_id
#define _prog_if    class_rev.cr.prog_if
#define _sub_class  class_rev.cr.sub_class
#define _base_class class_rev.cr.base_class
    union {
        unsigned long bist_header_latency_cache;
	struct {
	    unsigned char cache_line_size;
	    unsigned char latency_timer;
	    unsigned char header_type;
	    unsigned char bist;
	} bhlc;
    } bhlc;
#define _bist_header_latency_cache bhlc.bist_header_latency_cache
#define _cache_line_size bhlc.bhlc.cache_line_size
#define _latency_timer   bhlc.bhlc.latency_timer
#define _header_type     bhlc.bhlc.header_type
#define _bist            bhlc.bhlc.bist
    union {
	struct {
	    unsigned long dv_base0;
	    unsigned long dv_base1;
	    unsigned long dv_base2;
	    unsigned long dv_base3;
	    unsigned long dv_base4;
	    unsigned long dv_base5;
	} dv;
	struct {
	    unsigned long bg_rsrvd[2];
	    unsigned char primary_bus_number;
	    unsigned char secondary_bus_number;
	    unsigned char subordinate_bus_number;
	    unsigned char secondary_latency_timer;
	    unsigned char io_base;
	    unsigned char io_limit;
	    unsigned short secondary_status;
	    unsigned short mem_base;
	    unsigned short mem_limit;
	    unsigned short prefetch_mem_base;
	    unsigned short prefetch_mem_limit;
	} bg;
    } bc;
#define	_base0				bc.dv.dv_base0
#define	_base1				bc.dv.dv_base1
#define	_base2				bc.dv.dv_base2
#define	_base3				bc.dv.dv_base3
#define	_base4				bc.dv.dv_base4
#define	_base5				bc.dv.dv_base5
#define	_primary_bus_number		bc.bg.primary_bus_number
#define	_secondary_bus_number		bc.bg.secondary_bus_number
#define	_subordinate_bus_number		bc.bg.subordinate_bus_number
#define	_secondary_latency_timer	bc.bg.secondary_latency_timer
#define _io_base			bc.bg.io_base
#define _io_limit			bc.bg.io_limit
#define _secondary_status		bc.bg.secondary_status
#define _mem_base			bc.bg.mem_base
#define _mem_limit			bc.bg.mem_limit
#define _prefetch_mem_base		bc.bg.prefetch_mem_base
#define _prefetch_mem_limit		bc.bg.prefetch_mem_limit
    unsigned long rsvd1;
    unsigned long rsvd2;
    unsigned long _baserom;
    unsigned long rsvd3;
    unsigned long rsvd4;
    union {
        unsigned long max_min_ipin_iline;
	struct {
	    unsigned char int_line;
	    unsigned char int_pin;
	    unsigned char min_gnt;
	    unsigned char max_lat;
	} mmii;
    } mmii;
#define _max_min_ipin_iline mmii.max_min_ipin_iline
#define _int_line mmii.mmii.int_line
#define _int_pin  mmii.mmii.int_pin
#define _min_gnt  mmii.mmii.min_gnt
#define _max_lat  mmii.mmii.max_lat
    /* end of official PCI config space header */
    unsigned long _pcibusidx;
    unsigned long _pcinumbus;
    unsigned long _pcibuses[16];
    unsigned short _configtype;   /* config type found                   */
    unsigned short _ioaddr;       /* config type 1 - private I/O addr    */
    unsigned long _cardnum;       /* config type 2 - private card number */
};

#define PCI_EN 0x80000000
#define MAX_PCI_DEVICES 64

extern struct pci_config_reg *pci_devp[];

#endif /* _XF86_PCI_H */