FreeBSD/Linux Kernel Cross Reference
sys/dev/mii/mii_bitbang.h

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

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