FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/ax88190.c
1 /* $NetBSD: ax88190.c,v 1.18 2021/07/01 20:39:15 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Enami Tsugutomo.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: ax88190.c,v 1.18 2021/07/01 20:39:15 thorpej Exp $");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/device.h>
38 #include <sys/socket.h>
39
40 #include <net/if.h>
41 #include <net/if_dl.h>
42 #include <net/if_types.h>
43 #include <net/if_media.h>
44 #include <net/if_ether.h>
45
46 #include <sys/bus.h>
47
48 #include <dev/mii/miivar.h>
49 #include <dev/mii/mii.h>
50 #include <dev/mii/mii_bitbang.h>
51
52 #include <dev/ic/dp8390reg.h>
53 #include <dev/ic/dp8390var.h>
54
55 #include <dev/ic/ne2000reg.h>
56 #include <dev/ic/ne2000var.h>
57
58 #include <dev/ic/ax88190reg.h>
59 #include <dev/ic/ax88190var.h>
60
61 static int ax88190_mii_readreg(device_t, int, int, uint16_t *);
62 static int ax88190_mii_writereg(device_t, int, int, uint16_t);
63 static void ax88190_mii_statchg(struct ifnet *);
64
65 /*
66 * MII bit-bang glue.
67 */
68 static u_int32_t ax88190_mii_bitbang_read(device_t);
69 static void ax88190_mii_bitbang_write(device_t, u_int32_t);
70
71 static const struct mii_bitbang_ops ax88190_mii_bitbang_ops = {
72 ax88190_mii_bitbang_read,
73 ax88190_mii_bitbang_write,
74 {
75 AX88190_MEMR_MDO, /* MII_BIT_MDO */
76 AX88190_MEMR_MDI, /* MII_BIT_MDI */
77 AX88190_MEMR_MDC, /* MII_BIT_MDC */
78 0, /* MII_BIT_DIR_HOST_PHY */
79 AX88190_MEMR_MDIR, /* MII_BIT_DIR_PHY_HOST */
80 }
81 };
82
83 static void
84 ax88190_tick(void *arg)
85 {
86 struct dp8390_softc *sc = arg;
87 int s;
88
89 s = splnet();
90 mii_tick(&sc->sc_mii);
91 splx(s);
92
93 callout_schedule(&sc->sc_tick_ch, hz);
94 }
95
96 void
97 ax88190_media_init(struct dp8390_softc *sc)
98 {
99 struct ifnet *ifp = &sc->sc_ec.ec_if;
100 struct mii_data *mii = &sc->sc_mii;
101
102 callout_setfunc(&sc->sc_tick_ch, ax88190_tick, sc);
103
104 sc->sc_ec.ec_mii = mii;
105
106 mii->mii_ifp = ifp;
107 mii->mii_readreg = ax88190_mii_readreg;
108 mii->mii_writereg = ax88190_mii_writereg;
109 mii->mii_statchg = ax88190_mii_statchg;
110 ifmedia_init(&mii->mii_media, IFM_IMASK, dp8390_mediachange,
111 dp8390_mediastatus);
112
113 mii_attach(sc->sc_dev, mii, 0xffffffff, MII_PHY_ANY,
114 MII_OFFSET_ANY, 0);
115
116 if (LIST_FIRST(&mii->mii_phys) == NULL) {
117 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL);
118 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE);
119 } else
120 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO);
121 }
122
123 void
124 ax88190_media_fini(struct dp8390_softc *sc)
125 {
126
127 callout_stop(&sc->sc_tick_ch);
128 mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
129 /* dp8390_detach() will call ifmedia_fini(). */
130 }
131
132 int
133 ax88190_mediachange(struct dp8390_softc *sc)
134 {
135 int rc;
136
137 if ((rc = mii_mediachg(&sc->sc_mii)) == ENXIO)
138 return 0;
139 return rc;
140 }
141
142 void
143 ax88190_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
144 {
145
146 mii_pollstat(&sc->sc_mii);
147 ifmr->ifm_status = sc->sc_mii.mii_media_status;
148 ifmr->ifm_active = sc->sc_mii.mii_media_active;
149 }
150
151 void
152 ax88190_init_card(struct dp8390_softc *sc)
153 {
154
155 mii_mediachg(&sc->sc_mii);
156 callout_schedule(&sc->sc_tick_ch, hz);
157 }
158
159 void
160 ax88190_stop_card(struct dp8390_softc *sc)
161 {
162
163 callout_stop(&sc->sc_tick_ch);
164 mii_down(&sc->sc_mii);
165 }
166
167 static u_int32_t
168 ax88190_mii_bitbang_read(device_t self)
169 {
170 struct ne2000_softc *sc = device_private(self);
171
172 return (bus_space_read_1(sc->sc_asict, sc->sc_asich, AX88190_MEMR));
173 }
174
175 static void
176 ax88190_mii_bitbang_write(device_t self, uint32_t val)
177 {
178 struct ne2000_softc *sc = device_private(self);
179
180 bus_space_write_1(sc->sc_asict, sc->sc_asich, AX88190_MEMR, val);
181 }
182
183 static int
184 ax88190_mii_readreg(device_t self, int phy, int reg, uint16_t *val)
185 {
186
187 return mii_bitbang_readreg(self, &ax88190_mii_bitbang_ops, phy, reg,
188 val);
189 }
190
191 static int
192 ax88190_mii_writereg(device_t self, int phy, int reg, uint16_t val)
193 {
194
195 return mii_bitbang_writereg(self, &ax88190_mii_bitbang_ops, phy, reg,
196 val);
197 }
198
199 static void
200 ax88190_mii_statchg(struct ifnet *ifp)
201 {
202
203 /* XXX */
204 }
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