freebsd-skq/sys/i386/include/pci_cfgreg.h
peter a6fa1409cb Detect a certain type of PCIBIOS brain damage. For some reason,
some bios vendors took it apon themselves to "censor" the
host->pci bridges from PCIBIOS callers, even when the caller
explicitly asks for them.  This includes certain Compaq machines
(eg: DL360) and some laptops.

If we detect this, shut down pcibios and revert to using IO
port bashing.

Under -current, apcica does a better job anyway.
2001-08-21 03:10:55 +00:00

56 lines
2.2 KiB
C

/*
* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
* 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 unmodified, 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.
*
* 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.
*
* $FreeBSD$
*
*/
#define CONF1_ADDR_PORT 0x0cf8
#define CONF1_DATA_PORT 0x0cfc
#define CONF1_ENABLE 0x80000000ul
#define CONF1_ENABLE_CHK 0x80000000ul
#define CONF1_ENABLE_MSK 0x7ff00000ul
#define CONF1_ENABLE_CHK1 0xff000001ul
#define CONF1_ENABLE_MSK1 0x80000001ul
#define CONF1_ENABLE_RES1 0x80000000ul
#define CONF2_ENABLE_PORT 0x0cf8
#ifdef PC98
#define CONF2_FORWARD_PORT 0x0cf9
#else
#define CONF2_FORWARD_PORT 0x0cfa
#endif
#define CONF2_ENABLE_CHK 0x0e
#define CONF2_ENABLE_RES 0x0e
extern int pci_cfgregopen(void);
extern u_int32_t pci_cfgregread(int bus, int slot, int func, int reg, int bytes);
extern void pci_cfgregwrite(int bus, int slot, int func, int reg, u_int32_t data, int bytes);
extern int pci_cfgintr(int bus, int device, int pin);
extern int pci_kill_pcibios(void);
extern int pci_pcibios_active(void);