FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/dl10019.c
1 /* $NetBSD: dl10019.c,v 1.7 2002/10/22 00:01:55 fair 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 Jason R. Thorpe.
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 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 #include <sys/cdefs.h>
40 __KERNEL_RCSID(0, "$NetBSD: dl10019.c,v 1.7 2002/10/22 00:01:55 fair Exp $");
41
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/mbuf.h>
45 #include <sys/syslog.h>
46 #include <sys/socket.h>
47 #include <sys/device.h>
48
49 #include <net/if.h>
50 #include <net/if_ether.h>
51 #include <net/if_media.h>
52
53 #include <machine/bus.h>
54 #include <machine/intr.h>
55
56 #include <dev/mii/miivar.h>
57 #include <dev/mii/mii.h>
58 #include <dev/mii/mii_bitbang.h>
59
60 #include <dev/ic/dp8390reg.h>
61 #include <dev/ic/dp8390var.h>
62
63 #include <dev/ic/ne2000reg.h>
64 #include <dev/ic/ne2000var.h>
65
66 #include <dev/ic/dl10019reg.h>
67 #include <dev/ic/dl10019var.h>
68
69 int dl10019_mii_readreg(struct device *, int, int);
70 void dl10019_mii_writereg(struct device *, int, int, int);
71 void dl10019_mii_statchg(struct device *);
72
73 /*
74 * MII bit-bang glue.
75 */
76 u_int32_t dl10019_mii_bitbang_read(struct device *);
77 void dl10019_mii_bitbang_write(struct device *, u_int32_t);
78
79 const struct mii_bitbang_ops dl10019_mii_bitbang_ops = {
80 dl10019_mii_bitbang_read,
81 dl10019_mii_bitbang_write,
82 {
83 DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */
84 DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */
85 DL0_GPIO_MII_CLK, /* MII_BIT_MDC */
86 DL0_19_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
87 0, /* MII_BIT_DIR_PHY_HOST */
88 }
89 };
90
91 const struct mii_bitbang_ops dl10022_mii_bitbang_ops = {
92 dl10019_mii_bitbang_read,
93 dl10019_mii_bitbang_write,
94 {
95 DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */
96 DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */
97 DL0_GPIO_MII_CLK, /* MII_BIT_MDC */
98 DL0_22_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
99 0, /* MII_BIT_DIR_PHY_HOST */
100 }
101 };
102
103 static void
104 dl10019_mii_reset(struct dp8390_softc *sc)
105 {
106 struct ne2000_softc *nsc = (void *) sc;
107 int i;
108
109 if (nsc->sc_type != NE2000_TYPE_DL10022)
110 return;
111
112 for (i = 0; i < 2; i++) {
113 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
114 0x08);
115 delay(1);
116 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
117 0x0c);
118 delay(1);
119 }
120 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x00);
121 }
122
123 void
124 dl10019_media_init(struct dp8390_softc *sc)
125 {
126 struct ifnet *ifp = &sc->sc_ec.ec_if;
127
128 sc->sc_mii.mii_ifp = ifp;
129 sc->sc_mii.mii_readreg = dl10019_mii_readreg;
130 sc->sc_mii.mii_writereg = dl10019_mii_writereg;
131 sc->sc_mii.mii_statchg = dl10019_mii_statchg;
132 ifmedia_init(&sc->sc_mii.mii_media, IFM_IMASK, dp8390_mediachange,
133 dp8390_mediastatus);
134
135 dl10019_mii_reset(sc);
136
137 mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY,
138 MII_OFFSET_ANY, 0);
139
140 if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) {
141 ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL);
142 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE);
143 } else
144 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
145 }
146
147 void
148 dl10019_media_fini(struct dp8390_softc *sc)
149 {
150
151 mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
152 }
153
154 int
155 dl10019_mediachange(struct dp8390_softc *sc)
156 {
157
158 mii_mediachg(&sc->sc_mii);
159 return (0);
160 }
161
162 void
163 dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
164 {
165
166 mii_pollstat(&sc->sc_mii);
167 ifmr->ifm_status = sc->sc_mii.mii_media_status;
168 ifmr->ifm_active = sc->sc_mii.mii_media_active;
169 }
170
171 void
172 dl10019_init_card(struct dp8390_softc *sc)
173 {
174
175 dl10019_mii_reset(sc);
176 mii_mediachg(&sc->sc_mii);
177 }
178
179 void
180 dl10019_stop_card(struct dp8390_softc *sc)
181 {
182
183 mii_down(&sc->sc_mii);
184 }
185
186 u_int32_t
187 dl10019_mii_bitbang_read(struct device *self)
188 {
189 struct dp8390_softc *sc = (void *) self;
190
191 /* We're already in Page 0. */
192 return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) &
193 ~DL0_GPIO_PRESERVE);
194 }
195
196 void
197 dl10019_mii_bitbang_write(struct device *self, u_int32_t val)
198 {
199 struct dp8390_softc *sc = (void *) self;
200 u_int8_t gpio;
201
202 /* We're already in Page 0. */
203 gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO);
204 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
205 (val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE));
206 }
207
208 int
209 dl10019_mii_readreg(struct device *self, int phy, int reg)
210 {
211 struct ne2000_softc *nsc = (void *) self;
212 const struct mii_bitbang_ops *ops;
213 int val;
214
215 ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
216 &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
217
218 val = mii_bitbang_readreg(self, ops, phy, reg);
219
220 return (val);
221 }
222
223 void
224 dl10019_mii_writereg(struct device *self, int phy, int reg, int val)
225 {
226 struct ne2000_softc *nsc = (void *) self;
227 const struct mii_bitbang_ops *ops;
228
229 ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
230 &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
231
232 mii_bitbang_writereg(self, ops, phy, reg, val);
233 }
234
235 void
236 dl10019_mii_statchg(struct device *self)
237 {
238 struct dp8390_softc *sc = (void *) self;
239 struct ne2000_softc *nsc = (void *) self;
240
241 /*
242 * Disable collision detection on the DL10022 if
243 * we are on a full-duplex link.
244 */
245 if (nsc->sc_type == NE2000_TYPE_DL10022) {
246 u_int8_t diag;
247
248 if (sc->sc_mii.mii_media_active & IFM_FDX)
249 diag = DL0_DIAG_NOCOLLDETECT;
250 else
251 diag = 0;
252 bus_space_write_1(sc->sc_regt, sc->sc_regh,
253 NEDL_DL0_DIAG, diag);
254 }
255 }
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