1 /* $OpenBSD: dl10019.c,v 1.9 2015/11/24 17:11:39 mpi Exp $ */
2 /* $NetBSD$ */
3
4 /*-
5 * Copyright (c) 2001 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Jason R. Thorpe.
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 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/device.h>
36 #include <sys/mbuf.h>
37 #include <sys/socket.h>
38 #include <sys/syslog.h>
39
40 #include <net/if.h>
41 #include <net/if_media.h>
42
43 #include <netinet/in.h>
44 #include <netinet/if_ether.h>
45
46 #include <machine/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/dl10019reg.h>
59
60 int dl10019_mii_readreg(struct device *, int, int);
61 void dl10019_mii_writereg(struct device *, int, int, int);
62 void dl10019_mii_statchg(struct device *);
63
64 void dl10019_mii_reset(struct dp8390_softc *);
65
66 /*
67 * MII bit-bang glue.
68 */
69 u_int32_t dl10019_mii_bitbang_read(struct device *);
70 void dl10019_mii_bitbang_write(struct device *, u_int32_t);
71
72 const struct mii_bitbang_ops dl10019_mii_bitbang_ops = {
73 dl10019_mii_bitbang_read,
74 dl10019_mii_bitbang_write,
75 {
76 DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */
77 DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */
78 DL0_GPIO_MII_CLK, /* MII_BIT_MDC */
79 DL0_19_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
80 0, /* MII_BIT_DIR_PHY_HOST */
81 }
82 };
83
84 const struct mii_bitbang_ops dl10022_mii_bitbang_ops = {
85 dl10019_mii_bitbang_read,
86 dl10019_mii_bitbang_write,
87 {
88 DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */
89 DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */
90 DL0_GPIO_MII_CLK, /* MII_BIT_MDC */
91 DL0_22_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
92 0, /* MII_BIT_DIR_PHY_HOST */
93 }
94 };
95
96 void
dl10019_mii_reset(struct dp8390_softc * sc)97 dl10019_mii_reset(struct dp8390_softc *sc)
98 {
99 struct ne2000_softc *nsc = (void *) sc;
100 int i;
101
102 if (nsc->sc_type != NE2000_TYPE_DL10022)
103 return;
104
105 for (i = 0; i < 2; i++) {
106 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
107 0x08);
108 DELAY(1);
109 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
110 0x0c);
111 DELAY(1);
112 }
113 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x00);
114 }
115
116 void
dl10019_media_init(struct dp8390_softc * sc)117 dl10019_media_init(struct dp8390_softc *sc)
118 {
119 struct ifnet *ifp = &sc->sc_arpcom.ac_if;
120
121 sc->sc_mii.mii_ifp = ifp;
122 sc->sc_mii.mii_readreg = dl10019_mii_readreg;
123 sc->sc_mii.mii_writereg = dl10019_mii_writereg;
124 sc->sc_mii.mii_statchg = dl10019_mii_statchg;
125 ifmedia_init(&sc->sc_mii.mii_media, 0, dp8390_mediachange,
126 dp8390_mediastatus);
127
128 dl10019_mii_reset(sc);
129
130 mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY,
131 MII_OFFSET_ANY, 0);
132
133 if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) {
134 ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL);
135 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE);
136 } else
137 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
138 }
139
140 void
dl10019_media_fini(struct dp8390_softc * sc)141 dl10019_media_fini(struct dp8390_softc *sc)
142 {
143 mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
144 }
145
146 int
dl10019_mediachange(struct dp8390_softc * sc)147 dl10019_mediachange(struct dp8390_softc *sc)
148 {
149 mii_mediachg(&sc->sc_mii);
150 return (0);
151 }
152
153 void
dl10019_mediastatus(struct dp8390_softc * sc,struct ifmediareq * ifmr)154 dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
155 {
156 mii_pollstat(&sc->sc_mii);
157 ifmr->ifm_status = sc->sc_mii.mii_media_status;
158 ifmr->ifm_active = sc->sc_mii.mii_media_active;
159 }
160
161 void
dl10019_init_card(struct dp8390_softc * sc)162 dl10019_init_card(struct dp8390_softc *sc)
163 {
164 dl10019_mii_reset(sc);
165 mii_mediachg(&sc->sc_mii);
166 }
167
168 void
dl10019_stop_card(struct dp8390_softc * sc)169 dl10019_stop_card(struct dp8390_softc *sc)
170 {
171 mii_down(&sc->sc_mii);
172 }
173
174 u_int32_t
dl10019_mii_bitbang_read(struct device * self)175 dl10019_mii_bitbang_read(struct device *self)
176 {
177 struct dp8390_softc *sc = (void *) self;
178
179 /* We're already in Page 0. */
180 return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) &
181 ~DL0_GPIO_PRESERVE);
182 }
183
184 void
dl10019_mii_bitbang_write(struct device * self,u_int32_t val)185 dl10019_mii_bitbang_write(struct device *self, u_int32_t val)
186 {
187 struct dp8390_softc *sc = (void *) self;
188 u_int8_t gpio;
189
190 /* We're already in Page 0. */
191 gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO);
192 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
193 (val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE));
194 }
195
196 int
dl10019_mii_readreg(struct device * self,int phy,int reg)197 dl10019_mii_readreg(struct device *self, int phy, int reg)
198 {
199 struct ne2000_softc *nsc = (void *) self;
200 const struct mii_bitbang_ops *ops;
201
202 ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
203 &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
204
205 return (mii_bitbang_readreg(self, ops, phy, reg));
206 }
207
208 void
dl10019_mii_writereg(struct device * self,int phy,int reg,int val)209 dl10019_mii_writereg(struct device *self, int phy, int reg, int val)
210 {
211 struct ne2000_softc *nsc = (void *) self;
212 const struct mii_bitbang_ops *ops;
213
214 ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
215 &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
216
217 mii_bitbang_writereg(self, ops, phy, reg, val);
218 }
219
220 void
dl10019_mii_statchg(struct device * self)221 dl10019_mii_statchg(struct device *self)
222 {
223 struct dp8390_softc *sc = (void *) self;
224 struct ne2000_softc *nsc = (void *) self;
225
226 /*
227 * Disable collision detection on the DL10022 if
228 * we are on a full-duplex link.
229 */
230 if (nsc->sc_type == NE2000_TYPE_DL10022) {
231 u_int8_t diag;
232
233 if (sc->sc_mii.mii_media_active & IFM_FDX)
234 diag = DL0_DIAG_NOCOLLDETECT;
235 else
236 diag = 0;
237 bus_space_write_1(sc->sc_regt, sc->sc_regh,
238 NEDL_DL0_DIAG, diag);
239 }
240 }
241