makphy.c revision 1.8 1 /* $NetBSD: makphy.c,v 1.8 2002/08/08 00:04:57 fvdl 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 1.8 2002/08/08 00:04:57 fvdl 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 struct cfattach makphy_ca = {
96 sizeof(struct mii_softc), makphymatch, makphyattach,
97 mii_phy_detach, mii_phy_activate
98 };
99
100 int makphy_service(struct mii_softc *, struct mii_data *, int);
101 void makphy_status(struct mii_softc *);
102
103 const struct mii_phy_funcs makphy_funcs = {
104 makphy_service, makphy_status, mii_phy_reset,
105 };
106
107 const struct mii_phydesc makphys[] = {
108 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3,
109 MII_STR_xxMARVELL_E1000_3 },
110
111 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5,
112 MII_STR_xxMARVELL_E1000_5 },
113
114 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011,
115 MII_STR_xxMARVELL_E1011 },
116
117 { 0, 0,
118 NULL },
119 };
120
121 int
122 makphymatch(struct device *parent, struct cfdata *match, void *aux)
123 {
124 struct mii_attach_args *ma = aux;
125
126 if (mii_phy_match(ma, makphys) != NULL)
127 return (10);
128
129 return (0);
130 }
131
132 void
133 makphyattach(struct device *parent, struct device *self, void *aux)
134 {
135 struct mii_softc *sc = (struct mii_softc *)self;
136 struct mii_attach_args *ma = aux;
137 struct mii_data *mii = ma->mii_data;
138 const struct mii_phydesc *mpd;
139
140 mpd = mii_phy_match(ma, makphys);
141 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
142
143 sc->mii_inst = mii->mii_instance;
144 sc->mii_phy = ma->mii_phyno;
145 sc->mii_funcs = &makphy_funcs;
146 sc->mii_pdata = mii;
147 sc->mii_flags = ma->mii_flags;
148 sc->mii_anegticks = 5;
149
150 PHY_RESET(sc);
151
152 sc->mii_capabilities =
153 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
154 if (sc->mii_capabilities & BMSR_EXTSTAT)
155 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
156
157 printf("%s: ", sc->mii_dev.dv_xname);
158 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
159 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0)
160 printf("no media present");
161 else
162 mii_phy_add_media(sc);
163 printf("\n");
164 }
165
166 int
167 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
168 {
169 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
170 int reg;
171
172 switch (cmd) {
173 case MII_POLLSTAT:
174 /*
175 * If we're not polling our PHY instance, just return.
176 */
177 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
178 return (0);
179 break;
180
181 case MII_MEDIACHG:
182 /*
183 * If the media indicates a different PHY instance,
184 * isolate ourselves.
185 */
186 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
187 reg = PHY_READ(sc, MII_BMCR);
188 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
189 return (0);
190 }
191
192 /*
193 * If the interface is not up, don't do anything.
194 */
195 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
196 break;
197
198 mii_phy_setmedia(sc);
199 break;
200
201 case MII_TICK:
202 /*
203 * If we're not currently selected, just return.
204 */
205 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
206 return (0);
207
208 if (mii_phy_tick(sc) == EJUSTRETURN)
209 return (0);
210 break;
211
212 case MII_DOWN:
213 mii_phy_down(sc);
214 return (0);
215 }
216
217 /* Update the media status. */
218 mii_phy_status(sc);
219
220 /* Callback if something changed. */
221 mii_phy_update(sc, cmd);
222 return (0);
223 }
224
225 void
226 makphy_status(struct mii_softc *sc)
227 {
228 struct mii_data *mii = sc->mii_pdata;
229 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
230 int bmcr, pssr, gtsr;
231
232 mii->mii_media_status = IFM_AVALID;
233 mii->mii_media_active = IFM_ETHER;
234
235 pssr = PHY_READ(sc, MII_MAKPHY_PSSR);
236
237 if (pssr & PSSR_LINK)
238 mii->mii_media_status |= IFM_ACTIVE;
239
240 bmcr = PHY_READ(sc, MII_BMCR);
241 if (bmcr & BMCR_ISO) {
242 mii->mii_media_active |= IFM_NONE;
243 mii->mii_media_status = 0;
244 return;
245 }
246
247 if (bmcr & BMCR_LOOP)
248 mii->mii_media_active |= IFM_LOOP;
249
250 if (bmcr & BMCR_AUTOEN) {
251 /*
252 * The media status bits are only valid of autonegotiation
253 * has completed (or it's disabled).
254 */
255 if ((pssr & PSSR_RESOLVED) == 0) {
256 /* Erg, still trying, I guess... */
257 mii->mii_media_active |= IFM_NONE;
258 return;
259 }
260
261 switch (PSSR_SPEED_get(pssr)) {
262 case SPEED_1000:
263 mii->mii_media_active |= IFM_1000_T;
264 gtsr = PHY_READ(sc, MII_100T2SR);
265 if (gtsr & GTSR_MS_RES)
266 mii->mii_media_active |= IFM_ETH_MASTER;
267 break;
268
269 case SPEED_100:
270 mii->mii_media_active |= IFM_100_TX;
271 break;
272
273 case SPEED_10:
274 mii->mii_media_active |= IFM_10_T;
275 break;
276
277 default:
278 mii->mii_media_active |= IFM_NONE;
279 mii->mii_media_status = 0;
280 return;
281 }
282
283 if (pssr & PSSR_DUPLEX)
284 mii->mii_media_active |= IFM_FDX;
285 } else
286 mii->mii_media_active = ife->ifm_media;
287 }
288