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 33CODE { 34 static int 35 null_route_interrupt(device_t pcib, device_t dev, int pin) 36 { 37 return (PCI_INVALID_IRQ); 38 } 39}; 40 41# 42# Return the number of slots on the attached PCI bus. 43# 44METHOD int maxslots { 45 device_t dev; 46}; 47 48# 49# Read configuration space on the PCI bus. The bus, slot and func 50# arguments determine the device which is being read and the reg 51# argument is a byte offset into configuration space for that 52# device. The width argument (which should be 1, 2 or 4) specifies how 53# many byte of configuration space to read from that offset. 54# 55METHOD u_int32_t read_config { 56 device_t dev; 57 u_int bus; 58 u_int slot; 59 u_int func; 60 u_int reg; 61 int width; 62}; 63 64# 65# Write configuration space on the PCI bus. The bus, slot and func 66# arguments determine the device which is being written and the reg 67# argument is a byte offset into configuration space for that 68# device. The value field is written to the configuration space, with 69# the number of bytes written depending on the width argument. 70# 71METHOD void write_config { 72 device_t dev; 73 u_int bus; 74 u_int slot; 75 u_int func; 76 u_int reg; 77 u_int32_t value; 78 int width; 79}; 80 81# 82# Route an interrupt. Returns a value suitable for stuffing into 83# a device's interrupt register. 84# 85METHOD int route_interrupt { 86 device_t pcib; 87 device_t dev; 88 int pin; 89} default null_route_interrupt; 90