sys/dev/mii/mii_bitbang.h

   1 /*      $NetBSD: mii_bitbang.h,v 1.5 2008/11/25 22:18:17 matt 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,
  49             int, int);
  50 void    mii_bitbang_writereg(device_t, mii_bitbang_ops_t,
  51             int, int, int);