1# 2# Copyright (c) 2000 Doug Rabson 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions 7# are met: 8# 1. Redistributions of source code must retain the above copyright 9# notice, this list of conditions and the following disclaimer. 10# 2. Redistributions in binary form must reproduce the above copyright 11# notice, this list of conditions and the following disclaimer in the 12# documentation and/or other materials provided with the distribution. 13# 14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24# SUCH DAMAGE. 25# 26# $FreeBSD$ 27# 28 29#include <sys/bus.h> 30 31INTERFACE pcib; 32 33# 34# Return the number of slots on the attached PCI bus. 35# 36METHOD int maxslots { 37 device_t dev; 38}; 39 40# 41# Read configuration space on the PCI bus. The bus, slot and func 42# arguments determine the device which is being read and the reg 43# argument is a byte offset into configuration space for that 44# device. The width argument (which should be 1, 2 or 4) specifies how 45# many byte of configuration space to read from that offset. 46# 47METHOD u_int32_t read_config { 48 device_t dev; 49 u_int bus; 50 u_int slot; 51 u_int func; 52 u_int reg; 53 int width; 54}; 55 56# 57# Write configuration space on the PCI bus. The bus, slot and func 58# arguments determine the device which is being written and the reg 59# argument is a byte offset into configuration space for that 60# device. The value field is written to the configuration space, with 61# the number of bytes written depending on the width argument. 62# 63METHOD void write_config { 64 device_t dev; 65 u_int bus; 66 u_int slot; 67 u_int func; 68 u_int reg; 69 u_int32_t value; 70 int width; 71}; 72 73# 74# Route an interrupt. Returns a value suitable for stuffing into 75# a device's interrupt register. 76# 77METHOD int route_interrupt { 78 device_t pcib; 79 device_t dev; 80 int pin; 81}; 82