1#- 2# Copyright (c) 2019 Michal Meloun <mmel@FreeBSD.org> 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 <machine/bus.h> 30 31INTERFACE pci_dw; 32 33 34/** 35 * Read from dbi space. 36 * The reg argument is a byte offset into dbi space. 37 * The width argument (which should be 1, 2 or 4) specifies how 38 * many bytes to read from that offset. 39 */ 40METHOD uint32_t dbi_read{ 41 device_t dev; 42 u_int reg; 43 int width; 44}; 45 46/** 47 * Write to dbi space. 48 * The reg argument is a byte offset into dbi space. 49 * The width argument (which should be 1, 2 or 4) specifies how 50 * many bytes to write to that offset. 51 */ 52METHOD void dbi_write{ 53 device_t dev; 54 u_int reg; 55 uint32_t value; 56 int width; 57}; 58 59/** 60 * Start or stop link 61 */ 62METHOD int set_link{ 63 device_t dev; 64 bool start; 65}; 66 67/** 68 * Query link status (up/down) 69 */ 70METHOD int get_link{ 71 device_t dev; 72 bool *status; 73}; 74