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/*
* Copyright (c) 1997-1998 University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
/*
* This provides the osenv interfaces for access to PCI
* configuration space.
*/
#include <oskit/dev/dev.h>
/*
* These are the machine-dependant routines.
* May either program configuration cycles directly or call into
* BIOS32 (on x86 anyway).
*/
int pci_config_read(char bus, char device, char function, char port,
unsigned *data);
int pci_config_write(char bus, char device, char function, char port,
unsigned data);
int pci_config_init();
int
osenv_pci_config_read(char bus, char device, char function, char port,
unsigned *data)
{
osenv_assert((port & 0x3) == 0);
return pci_config_read(bus, device, function, port, data);
}
int
osenv_pci_config_write(char bus, char device, char function, char port,
unsigned data)
{
osenv_assert((port & 0x3) == 0);
return pci_config_write(bus, device, function, port, data);
}
/*
* This returns zero on success, non-zero on failure (ie, no PCI).
*/
int
osenv_pci_config_init()
{
return pci_config_init();
}
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