1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2013 Luiz Otavio O Souza.
5 * Copyright (c) 2011-2012 Stefan Bethke.
6 * Copyright (c) 2012 Adrian Chadd.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/param.h>
32#include <sys/bus.h>
33#include <sys/errno.h>
34#include <sys/kernel.h>
35#include <sys/lock.h>
36#include <sys/mutex.h>
37#include <sys/systm.h>
38#include <sys/socket.h>
39
40#include <net/if.h>
41
42#include <dev/mii/mii.h>
43
44#include <dev/etherswitch/etherswitch.h>
45#include <dev/etherswitch/ip17x/ip17x_phy.h>
46#include <dev/etherswitch/ip17x/ip17x_reg.h>
47#include <dev/etherswitch/ip17x/ip17x_var.h>
48
49#include "mdio_if.h"
50#include "miibus_if.h"
51#include "etherswitch_if.h"
52
53int
54ip17x_readphy(device_t dev, int phy, int reg)
55{
56	struct ip17x_softc *sc;
57	int data;
58
59	sc = device_get_softc(dev);
60	IP17X_LOCK_ASSERT(sc, MA_NOTOWNED);
61
62	if (phy < 0 || phy >= 32)
63		return (ENXIO);
64	if (reg < 0 || reg >= 32)
65		return (ENXIO);
66
67	IP17X_LOCK(sc);
68	data = MDIO_READREG(device_get_parent(dev), phy, reg);
69	IP17X_UNLOCK(sc);
70
71	return (data);
72}
73
74int
75ip17x_writephy(device_t dev, int phy, int reg, int data)
76{
77	struct ip17x_softc *sc;
78	int err;
79
80	sc = device_get_softc(dev);
81	IP17X_LOCK_ASSERT(sc, MA_NOTOWNED);
82
83	if (phy < 0 || phy >= 32)
84		return (ENXIO);
85	if (reg < 0 || reg >= 32)
86		return (ENXIO);
87
88	IP17X_LOCK(sc);
89	err = MDIO_WRITEREG(device_get_parent(dev), phy, reg, data);
90	IP17X_UNLOCK(sc);
91
92	return (err);
93}
94
95int
96ip17x_updatephy(device_t dev, int phy, int reg, int mask, int value)
97{
98	int val;
99
100	val = ip17x_readphy(dev, phy, reg);
101	val &= ~mask;
102	val |= value;
103	return (ip17x_writephy(dev, phy, reg, val));
104}
105