5e70573817
Submitted by: wolf (Wolfgang Stanglmeier) Files moved here from sys/i386/pci, since they are meant to be architecture independent.
91 lines
3.3 KiB
C
91 lines
3.3 KiB
C
/**************************************************************************
|
||
**
|
||
** $Id: pcibus.h,v 1.2 1994/11/02 23:47:14 se Exp $
|
||
**
|
||
** Declarations for pci bus driver.
|
||
**
|
||
** 386bsd / FreeBSD
|
||
**
|
||
**-------------------------------------------------------------------------
|
||
**
|
||
** Copyright (c) 1994 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__
|
||
|
||
/*-----------------------------------------------------------------
|
||
**
|
||
** The following functions are provided by the pci bios.
|
||
** They are used only by the pci configuration.
|
||
**
|
||
** pb_mode():
|
||
** Probes for a pci system.
|
||
** Returns 1 or 2 for pci configuration mechanism.
|
||
** Returns 0 if no pci system.
|
||
**
|
||
** pb_tag():
|
||
** Gets a handle for accessing the pci configuration
|
||
** space.
|
||
** This handle is given to the mapping functions (see
|
||
** above) or to the read/write functions.
|
||
**
|
||
** pb_read():
|
||
** Read a long word from the pci configuration space.
|
||
** Requires a tag (from pcitag) and the register
|
||
** number (should be a long word aligned one).
|
||
**
|
||
** pb_write():
|
||
** Writes a long word to the pci configuration space.
|
||
** Requires a tag (from pcitag), the register number
|
||
** (should be a long word aligned one), and a value.
|
||
**
|
||
** pb_regint():
|
||
** Register an interupt handler for a pci device.
|
||
** Requires a tag (from pcitag), the handler function
|
||
** and it's argument, and an interupt mask.
|
||
**
|
||
**-----------------------------------------------------------------
|
||
*/
|
||
|
||
struct pcibus {
|
||
char *pb_name;
|
||
int (*pb_mode ) (void);
|
||
pcici_t (*pb_tag ) (u_char bus, u_char device, 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);
|
||
int (*pb_regint) (pcici_t tag, int(*func)(), void*arg, unsigned*mp);
|
||
};
|
||
|
||
/*
|
||
** The following structure should be generated by the driver
|
||
*/
|
||
|
||
extern struct linker_set pcibus_set;
|
||
|
||
#endif
|