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/**************************************************************************
**
** $Id: pcibus.h,v 1.3 1995/11/21 12:54:54 bde Exp $
**
** Declarations for pci bus driver.
**
** FreeBSD
**
**-------------------------------------------------------------------------
**
** Copyright (c) 1995 Wolfgang Stanglmeier. 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, 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.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** 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.
**
***************************************************************************
*/
#ifndef __PCI_BUS_H__
#define __PCI_BUS_H__ "pl1 95/03/13"
/*-----------------------------------------------------------------
**
** The following functions are provided by the pci bios.
** They are used only by the pci configuration.
**
** pcibus_setup():
** Probes for a pci system.
** Sets pci_maxdevice and pci_mechanism.
**
** pcibus_tag():
** Creates a handle for pci configuration space access.
** This handle is given to the read/write functions.
**
** pcibus_ftag():
** Creates a modified handle.
**
** pcibus_read():
** Read a long word from the pci configuration space.
** Requires a tag (from pcitag) and the register
** number (should be a long word alligned one).
**
** pcibus_write():
** Writes a long word to the pci configuration space.
** Requires a tag (from pcitag), the register number
** (should be a long word alligned one), and a value.
**
** pcibus_regirq():
** Register an interrupt handler for a pci device.
** Requires a tag (from pcitag), the register number
** (should be a long word alligned one), and a value.
**
**-----------------------------------------------------------------
*/
struct pcibus {
char *pb_name;
void (*pb_setup ) (void);
pcici_t (*pb_tag ) (u_char bus, u_char device, u_char func);
pcici_t (*pb_ftag ) (pcici_t tag, u_char func);
u_long (*pb_read ) (pcici_t tag, u_long reg);
void (*pb_write ) (pcici_t tag, u_long reg, u_long data);
unsigned pb_maxirq;
int (*pb_iattach) (int irq, inthand2_t *func, int arg,
unsigned *maskptr);
int (*pb_idetach) (int irq, inthand2_t *func);
int (*pb_imaskinc)(int irq, unsigned *maskptr);
int (*pb_imaskexc)(int irq, unsigned *maskptr);
};
#define PCI_MAX_IRQ (16)
/*
** The following structure should be generated by the driver
*/
extern struct linker_set pcibus_set;
#endif
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