1 /* $NetBSD: mii_bitbang.h,v 1.7 2019/01/22 03:42:27 msaitoh Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #define MII_BIT_MDO 0 /* data out (host->PHY) */ 34 #define MII_BIT_MDI 1 /* data in (PHY->host) */ 35 #define MII_BIT_MDC 2 /* clock */ 36 #define MII_BIT_DIR_HOST_PHY 3 /* set direction: host->PHY */ 37 #define MII_BIT_DIR_PHY_HOST 4 /* set direction: PHY->host */ 38 #define MII_NBITS 5 39 40 struct mii_bitbang_ops { 41 uint32_t (*mbo_read)(device_t); 42 void (*mbo_write)(device_t, uint32_t); 43 uint32_t mbo_bits[MII_NBITS]; 44 }; 45 46 typedef const struct mii_bitbang_ops *mii_bitbang_ops_t; 47 48 int mii_bitbang_readreg(device_t, mii_bitbang_ops_t, int, int, uint16_t *); 49 int mii_bitbang_writereg(device_t, mii_bitbang_ops_t, int, int, uint16_t); 50