FreeBSD/Linux Kernel Cross Reference
sys/dev/mii/makphy.c
1 /* $NetBSD: makphy.c,v 1.12 2003/04/29 01:49:34 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1998, 1999, 2000, 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 of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
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 the Marvell 88E1000 ``Alaska'' 10/100/1000 PHY.
71 */
72
73 #include <sys/cdefs.h>
74 __KERNEL_RCSID(0, "$NetBSD: makphy.c,v 1.12 2003/04/29 01:49:34 thorpej Exp $");
75
76 #include <sys/param.h>
77 #include <sys/systm.h>
78 #include <sys/kernel.h>
79 #include <sys/device.h>
80 #include <sys/socket.h>
81 #include <sys/errno.h>
82
83 #include <net/if.h>
84 #include <net/if_media.h>
85
86 #include <dev/mii/mii.h>
87 #include <dev/mii/miivar.h>
88 #include <dev/mii/miidevs.h>
89
90 #include <dev/mii/makphyreg.h>
91
92 int makphymatch(struct device *, struct cfdata *, void *);
93 void makphyattach(struct device *, struct device *, void *);
94
95 CFATTACH_DECL(makphy, sizeof(struct mii_softc),
96 makphymatch, makphyattach, mii_phy_detach, mii_phy_activate);
97
98 int makphy_service(struct mii_softc *, struct mii_data *, int);
99 void makphy_status(struct mii_softc *);
100
101 const struct mii_phy_funcs makphy_funcs = {
102 makphy_service, makphy_status, mii_phy_reset,
103 };
104
105 const struct mii_phydesc makphys[] = {
106 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3,
107 MII_STR_xxMARVELL_E1000_3 },
108
109 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5,
110 MII_STR_xxMARVELL_E1000_5 },
111
112 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011,
113 MII_STR_xxMARVELL_E1011 },
114
115 { 0, 0,
116 NULL },
117 };
118
119 int
120 makphymatch(struct device *parent, struct cfdata *match, void *aux)
121 {
122 struct mii_attach_args *ma = aux;
123
124 if (mii_phy_match(ma, makphys) != NULL)
125 return (10);
126
127 return (0);
128 }
129
130 void
131 makphyattach(struct device *parent, struct device *self, void *aux)
132 {
133 struct mii_softc *sc = (struct mii_softc *)self;
134 struct mii_attach_args *ma = aux;
135 struct mii_data *mii = ma->mii_data;
136 const struct mii_phydesc *mpd;
137
138 mpd = mii_phy_match(ma, makphys);
139 aprint_naive(": Media interface\n");
140 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
141
142 sc->mii_inst = mii->mii_instance;
143 sc->mii_phy = ma->mii_phyno;
144 sc->mii_funcs = &makphy_funcs;
145 sc->mii_pdata = mii;
146 sc->mii_flags = ma->mii_flags;
147 sc->mii_anegticks = 5;
148
149 PHY_RESET(sc);
150
151 sc->mii_capabilities =
152 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
153 if (sc->mii_capabilities & BMSR_EXTSTAT)
154 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
155
156 aprint_normal("%s: ", sc->mii_dev.dv_xname);
157 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
158 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0)
159 aprint_error("no media present");
160 else
161 mii_phy_add_media(sc);
162 aprint_normal("\n");
163 }
164
165 int
166 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
167 {
168 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
169 int reg;
170
171 switch (cmd) {
172 case MII_POLLSTAT:
173 /*
174 * If we're not polling our PHY instance, just return.
175 */
176 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
177 return (0);
178 break;
179
180 case MII_MEDIACHG:
181 /*
182 * If the media indicates a different PHY instance,
183 * isolate ourselves.
184 */
185 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
186 reg = PHY_READ(sc, MII_BMCR);
187 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
188 return (0);
189 }
190
191 /*
192 * If the interface is not up, don't do anything.
193 */
194 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
195 break;
196
197 mii_phy_setmedia(sc);
198 break;
199
200 case MII_TICK:
201 /*
202 * If we're not currently selected, just return.
203 */
204 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
205 return (0);
206
207 if (mii_phy_tick(sc) == EJUSTRETURN)
208 return (0);
209 break;
210
211 case MII_DOWN:
212 mii_phy_down(sc);
213 return (0);
214 }
215
216 /* Update the media status. */
217 mii_phy_status(sc);
218
219 /* Callback if something changed. */
220 mii_phy_update(sc, cmd);
221 return (0);
222 }
223
224 void
225 makphy_status(struct mii_softc *sc)
226 {
227 struct mii_data *mii = sc->mii_pdata;
228 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
229 int bmcr, pssr, gtsr;
230
231 mii->mii_media_status = IFM_AVALID;
232 mii->mii_media_active = IFM_ETHER;
233
234 pssr = PHY_READ(sc, MII_MAKPHY_PSSR);
235
236 if (pssr & PSSR_LINK)
237 mii->mii_media_status |= IFM_ACTIVE;
238
239 bmcr = PHY_READ(sc, MII_BMCR);
240 if (bmcr & BMCR_ISO) {
241 mii->mii_media_active |= IFM_NONE;
242 mii->mii_media_status = 0;
243 return;
244 }
245
246 if (bmcr & BMCR_LOOP)
247 mii->mii_media_active |= IFM_LOOP;
248
249 if (bmcr & BMCR_AUTOEN) {
250 /*
251 * The media status bits are only valid of autonegotiation
252 * has completed (or it's disabled).
253 */
254 if ((pssr & PSSR_RESOLVED) == 0) {
255 /* Erg, still trying, I guess... */
256 mii->mii_media_active |= IFM_NONE;
257 return;
258 }
259
260 switch (PSSR_SPEED_get(pssr)) {
261 case SPEED_1000:
262 mii->mii_media_active |= IFM_1000_T;
263 gtsr = PHY_READ(sc, MII_100T2SR);
264 if (gtsr & GTSR_MS_RES)
265 mii->mii_media_active |= IFM_ETH_MASTER;
266 break;
267
268 case SPEED_100:
269 mii->mii_media_active |= IFM_100_TX;
270 break;
271
272 case SPEED_10:
273 mii->mii_media_active |= IFM_10_T;
274 break;
275
276 default:
277 mii->mii_media_active |= IFM_NONE;
278 mii->mii_media_status = 0;
279 return;
280 }
281
282 if (pssr & PSSR_DUPLEX)
283 mii->mii_media_active |= IFM_FDX;
284 } else
285 mii->mii_media_active = ife->ifm_media;
286 }
Cache object: b00b4c9ad5f7dc0107579163e37db158
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