Line data Source code
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
97 0 : dl10019_mii_reset(struct dp8390_softc *sc)
98 : {
99 0 : struct ne2000_softc *nsc = (void *) sc;
100 : int i;
101 :
102 0 : if (nsc->sc_type != NE2000_TYPE_DL10022)
103 0 : return;
104 :
105 0 : for (i = 0; i < 2; i++) {
106 0 : bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
107 : 0x08);
108 0 : DELAY(1);
109 0 : bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
110 : 0x0c);
111 0 : DELAY(1);
112 : }
113 0 : bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x00);
114 0 : }
115 :
116 : void
117 0 : dl10019_media_init(struct dp8390_softc *sc)
118 : {
119 0 : struct ifnet *ifp = &sc->sc_arpcom.ac_if;
120 :
121 0 : sc->sc_mii.mii_ifp = ifp;
122 0 : sc->sc_mii.mii_readreg = dl10019_mii_readreg;
123 0 : sc->sc_mii.mii_writereg = dl10019_mii_writereg;
124 0 : sc->sc_mii.mii_statchg = dl10019_mii_statchg;
125 0 : ifmedia_init(&sc->sc_mii.mii_media, 0, dp8390_mediachange,
126 : dp8390_mediastatus);
127 :
128 0 : dl10019_mii_reset(sc);
129 :
130 0 : mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY,
131 : MII_OFFSET_ANY, 0);
132 :
133 0 : if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) {
134 0 : ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL);
135 0 : ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE);
136 0 : } else
137 0 : ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
138 0 : }
139 :
140 : void
141 0 : dl10019_media_fini(struct dp8390_softc *sc)
142 : {
143 0 : mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
144 0 : }
145 :
146 : int
147 0 : dl10019_mediachange(struct dp8390_softc *sc)
148 : {
149 0 : mii_mediachg(&sc->sc_mii);
150 0 : return (0);
151 : }
152 :
153 : void
154 0 : dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
155 : {
156 0 : mii_pollstat(&sc->sc_mii);
157 0 : ifmr->ifm_status = sc->sc_mii.mii_media_status;
158 0 : ifmr->ifm_active = sc->sc_mii.mii_media_active;
159 0 : }
160 :
161 : void
162 0 : dl10019_init_card(struct dp8390_softc *sc)
163 : {
164 0 : dl10019_mii_reset(sc);
165 0 : mii_mediachg(&sc->sc_mii);
166 0 : }
167 :
168 : void
169 0 : dl10019_stop_card(struct dp8390_softc *sc)
170 : {
171 0 : mii_down(&sc->sc_mii);
172 0 : }
173 :
174 : u_int32_t
175 0 : dl10019_mii_bitbang_read(struct device *self)
176 : {
177 0 : struct dp8390_softc *sc = (void *) self;
178 :
179 : /* We're already in Page 0. */
180 0 : return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) &
181 : ~DL0_GPIO_PRESERVE);
182 : }
183 :
184 : void
185 0 : dl10019_mii_bitbang_write(struct device *self, u_int32_t val)
186 : {
187 0 : struct dp8390_softc *sc = (void *) self;
188 : u_int8_t gpio;
189 :
190 : /* We're already in Page 0. */
191 0 : gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO);
192 0 : bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
193 : (val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE));
194 0 : }
195 :
196 : int
197 0 : dl10019_mii_readreg(struct device *self, int phy, int reg)
198 : {
199 0 : struct ne2000_softc *nsc = (void *) self;
200 : const struct mii_bitbang_ops *ops;
201 :
202 0 : ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
203 : &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
204 :
205 0 : return (mii_bitbang_readreg(self, ops, phy, reg));
206 : }
207 :
208 : void
209 0 : dl10019_mii_writereg(struct device *self, int phy, int reg, int val)
210 : {
211 0 : struct ne2000_softc *nsc = (void *) self;
212 : const struct mii_bitbang_ops *ops;
213 :
214 0 : ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
215 : &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
216 :
217 0 : mii_bitbang_writereg(self, ops, phy, reg, val);
218 0 : }
219 :
220 : void
221 0 : dl10019_mii_statchg(struct device *self)
222 : {
223 0 : struct dp8390_softc *sc = (void *) self;
224 0 : 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 0 : if (nsc->sc_type == NE2000_TYPE_DL10022) {
231 : u_int8_t diag;
232 :
233 0 : if (sc->sc_mii.mii_media_active & IFM_FDX)
234 0 : diag = DL0_DIAG_NOCOLLDETECT;
235 : else
236 : diag = 0;
237 0 : bus_space_write_1(sc->sc_regt, sc->sc_regh,
238 : NEDL_DL0_DIAG, diag);
239 0 : }
240 0 : }
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