1 | /* $NetBSD: mii_bitbang.h,v 1.6 2009/05/12 14:31:27 cegger 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); |
52 | |