FreeBSD/Linux Kernel Cross Reference
sys/dev/mii/ukphy.c
1 /* $NetBSD: ukphy.c,v 1.2 1999/04/23 04:24:32 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1998, 1999 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 of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center, and by Frank van der Linden.
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 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 /*
41 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
42 *
43 * Redistribution and use in source and binary forms, with or without
44 * modification, are permitted provided that the following conditions
45 * are met:
46 * 1. Redistributions of source code must retain the above copyright
47 * notice, this list of conditions and the following disclaimer.
48 * 2. Redistributions in binary form must reproduce the above copyright
49 * notice, this list of conditions and the following disclaimer in the
50 * documentation and/or other materials provided with the distribution.
51 * 3. All advertising materials mentioning features or use of this software
52 * must display the following acknowledgement:
53 * This product includes software developed by Manuel Bouyer.
54 * 4. The name of the author may not be used to endorse or promote products
55 * derived from this software without specific prior written permission.
56 *
57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
67 */
68
69 /*
70 * driver for generic unknown PHYs
71 */
72
73 #include <sys/param.h>
74 #include <sys/systm.h>
75 #include <sys/kernel.h>
76 #include <sys/socket.h>
77 #include <sys/errno.h>
78 #include <sys/module.h>
79 #include <sys/bus.h>
80
81 #include <net/if.h>
82 #include <net/if_media.h>
83
84
85 #include <dev/mii/mii.h>
86 #include <dev/mii/miivar.h>
87
88 #include "miibus_if.h"
89
90 #if !defined(lint)
91 static const char rcsid[] =
92 "$FreeBSD: releng/5.0/sys/dev/mii/ukphy.c 105135 2002-10-14 22:31:52Z alfred $";
93 #endif
94
95 static int ukphy_probe(device_t);
96 static int ukphy_attach(device_t);
97
98 static device_method_t ukphy_methods[] = {
99 /* device interface */
100 DEVMETHOD(device_probe, ukphy_probe),
101 DEVMETHOD(device_attach, ukphy_attach),
102 DEVMETHOD(device_detach, mii_phy_detach),
103 DEVMETHOD(device_shutdown, bus_generic_shutdown),
104 { 0, 0 }
105 };
106
107 static devclass_t ukphy_devclass;
108
109 static driver_t ukphy_driver = {
110 "ukphy",
111 ukphy_methods,
112 sizeof(struct mii_softc)
113 };
114
115 DRIVER_MODULE(ukphy, miibus, ukphy_driver, ukphy_devclass, 0, 0);
116
117 static int ukphy_service(struct mii_softc *, struct mii_data *, int);
118
119 static int
120 ukphy_probe(dev)
121 device_t dev;
122 {
123
124 /*
125 * We know something is here, so always match at a low priority.
126 */
127 device_set_desc(dev, "Generic IEEE 802.3u media interface");
128 return (-100);
129 }
130
131 static int
132 ukphy_attach(dev)
133 device_t dev;
134 {
135 struct mii_softc *sc;
136 struct mii_attach_args *ma;
137 struct mii_data *mii;
138
139 sc = device_get_softc(dev);
140 ma = device_get_ivars(dev);
141 sc->mii_dev = device_get_parent(dev);
142 mii = device_get_softc(sc->mii_dev);
143 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
144
145 if (bootverbose)
146 device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n",
147 MII_OUI(ma->mii_id1, ma->mii_id2),
148 MII_MODEL(ma->mii_id2), MII_REV(ma->mii_id2));
149
150 sc->mii_inst = mii->mii_instance;
151 sc->mii_phy = ma->mii_phyno;
152 sc->mii_service = ukphy_service;
153 sc->mii_pdata = mii;
154
155 mii->mii_instance++;
156
157 sc->mii_flags |= MIIF_NOISOLATE;
158
159 mii_phy_reset(sc);
160
161 sc->mii_capabilities =
162 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
163 if (sc->mii_capabilities & BMSR_EXTSTAT)
164 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
165 device_printf(dev, " ");
166 mii_phy_add_media(sc);
167 printf("\n");
168
169 MIIBUS_MEDIAINIT(sc->mii_dev);
170
171 return(0);
172 }
173
174 static int
175 ukphy_service(sc, mii, cmd)
176 struct mii_softc *sc;
177 struct mii_data *mii;
178 int cmd;
179 {
180 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
181 int reg;
182
183 switch (cmd) {
184 case MII_POLLSTAT:
185 /*
186 * If we're not polling our PHY instance, just return.
187 */
188 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
189 return (0);
190 break;
191
192 case MII_MEDIACHG:
193 /*
194 * If the media indicates a different PHY instance,
195 * isolate ourselves.
196 */
197 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
198 reg = PHY_READ(sc, MII_BMCR);
199 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
200 return (0);
201 }
202
203 /*
204 * If the interface is not up, don't do anything.
205 */
206 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
207 break;
208
209 mii_phy_setmedia(sc);
210 break;
211
212 case MII_TICK:
213 /*
214 * If we're not currently selected, just return.
215 */
216 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
217 return (0);
218 if (mii_phy_tick(sc) == EJUSTRETURN)
219 return (0);
220 break;
221 }
222
223 /* Update the media status. */
224 ukphy_status(sc);
225
226 /* Callback if something changed. */
227 mii_phy_update(sc, cmd);
228 return (0);
229 }
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