1 /* $NetBSD: mii_bitbang.h,v 1.6 2009/05/12 14:31:27 cegger Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-2-Clause-NetBSD 5 * 6 * Copyright (c) 1999 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to The NetBSD Foundation 10 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 11 * NASA Ames Research Center. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD$ 35 */ 36 37 #define MII_BIT_MDO 0 /* data out (host->PHY) */ 38 #define MII_BIT_MDI 1 /* data in (PHY->host) */ 39 #define MII_BIT_MDC 2 /* clock */ 40 #define MII_BIT_DIR_HOST_PHY 3 /* set direction: host->PHY */ 41 #define MII_BIT_DIR_PHY_HOST 4 /* set direction: PHY->host */ 42 #define MII_NBITS 5 43 44 struct mii_bitbang_ops { 45 uint32_t (*mbo_read)(device_t); 46 void (*mbo_write)(device_t, uint32_t); 47 uint32_t mbo_bits[MII_NBITS]; 48 }; 49 50 typedef const struct mii_bitbang_ops *mii_bitbang_ops_t; 51 52 int mii_bitbang_readreg(device_t dev, mii_bitbang_ops_t ops, 53 int phy, int reg); 54 void mii_bitbang_sync(device_t dev, mii_bitbang_ops_t ops); 55 void mii_bitbang_writereg(device_t dev, mii_bitbang_ops_t ops, 56 int phy, int reg, int val); 57