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
53 int
ip17x_readphy(device_t dev,int phy,int reg)54 ip17x_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
74 int
ip17x_writephy(device_t dev,int phy,int reg,int data)75 ip17x_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
95 int
ip17x_updatephy(device_t dev,int phy,int reg,int mask,int value)96 ip17x_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