pcib_if.m revision 139749
1139749Simp#- 265176Sdfr# Copyright (c) 2000 Doug Rabson 365176Sdfr# All rights reserved. 465176Sdfr# 565176Sdfr# Redistribution and use in source and binary forms, with or without 665176Sdfr# modification, are permitted provided that the following conditions 765176Sdfr# are met: 865176Sdfr# 1. Redistributions of source code must retain the above copyright 965176Sdfr# notice, this list of conditions and the following disclaimer. 1065176Sdfr# 2. Redistributions in binary form must reproduce the above copyright 1165176Sdfr# notice, this list of conditions and the following disclaimer in the 1265176Sdfr# documentation and/or other materials provided with the distribution. 1365176Sdfr# 1465176Sdfr# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1565176Sdfr# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1665176Sdfr# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1765176Sdfr# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1865176Sdfr# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1965176Sdfr# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2065176Sdfr# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2165176Sdfr# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2265176Sdfr# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2365176Sdfr# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2465176Sdfr# SUCH DAMAGE. 2565176Sdfr# 2665176Sdfr# $FreeBSD: head/sys/dev/pci/pcib_if.m 139749 2005-01-06 01:43:34Z imp $ 2765176Sdfr# 2865176Sdfr 2965176Sdfr#include <sys/bus.h> 3065176Sdfr 3165176SdfrINTERFACE pcib; 3265176Sdfr 3365176Sdfr# 3465176Sdfr# Return the number of slots on the attached PCI bus. 3565176Sdfr# 3665176SdfrMETHOD int maxslots { 3765176Sdfr device_t dev; 3865176Sdfr}; 3965176Sdfr 4065176Sdfr# 4165176Sdfr# Read configuration space on the PCI bus. The bus, slot and func 4265176Sdfr# arguments determine the device which is being read and the reg 4365176Sdfr# argument is a byte offset into configuration space for that 4465176Sdfr# device. The width argument (which should be 1, 2 or 4) specifies how 4565176Sdfr# many byte of configuration space to read from that offset. 4665176Sdfr# 4765176SdfrMETHOD u_int32_t read_config { 4865176Sdfr device_t dev; 4969480Sgallatin u_int bus; 5069480Sgallatin u_int slot; 5169480Sgallatin u_int func; 5269480Sgallatin u_int reg; 5365176Sdfr int width; 5465176Sdfr}; 5565176Sdfr 5665176Sdfr# 5765176Sdfr# Write configuration space on the PCI bus. The bus, slot and func 5865176Sdfr# arguments determine the device which is being written and the reg 5965176Sdfr# argument is a byte offset into configuration space for that 6065176Sdfr# device. The value field is written to the configuration space, with 6165176Sdfr# the number of bytes written depending on the width argument. 6265176Sdfr# 6365176SdfrMETHOD void write_config { 6465176Sdfr device_t dev; 6569480Sgallatin u_int bus; 6669480Sgallatin u_int slot; 6769480Sgallatin u_int func; 6869480Sgallatin u_int reg; 6965176Sdfr u_int32_t value; 7065176Sdfr int width; 7165176Sdfr}; 7267222Simp 7367222Simp# 7467222Simp# Route an interrupt. Returns a value suitable for stuffing into 7567222Simp# a device's interrupt register. 7667222Simp# 7767222SimpMETHOD int route_interrupt { 7869792Smsmith device_t pcib; 7967222Simp device_t dev; 8067222Simp int pin; 8167222Simp}; 82