sqphy.c revision 1.11 1 1.11 thorpej /* $NetBSD: sqphy.c,v 1.11 1999/11/03 22:30:32 thorpej Exp $ */
2 1.1 thorpej
3 1.1 thorpej /*-
4 1.9 thorpej * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
5 1.1 thorpej * All rights reserved.
6 1.1 thorpej *
7 1.1 thorpej * This code is derived from software contributed to The NetBSD Foundation
8 1.1 thorpej * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 1.1 thorpej * NASA Ames Research Center.
10 1.1 thorpej *
11 1.1 thorpej * Redistribution and use in source and binary forms, with or without
12 1.1 thorpej * modification, are permitted provided that the following conditions
13 1.1 thorpej * are met:
14 1.1 thorpej * 1. Redistributions of source code must retain the above copyright
15 1.1 thorpej * notice, this list of conditions and the following disclaimer.
16 1.1 thorpej * 2. Redistributions in binary form must reproduce the above copyright
17 1.1 thorpej * notice, this list of conditions and the following disclaimer in the
18 1.1 thorpej * documentation and/or other materials provided with the distribution.
19 1.1 thorpej * 3. All advertising materials mentioning features or use of this software
20 1.1 thorpej * must display the following acknowledgement:
21 1.1 thorpej * This product includes software developed by the NetBSD
22 1.1 thorpej * Foundation, Inc. and its contributors.
23 1.1 thorpej * 4. Neither the name of The NetBSD Foundation nor the names of its
24 1.1 thorpej * contributors may be used to endorse or promote products derived
25 1.1 thorpej * from this software without specific prior written permission.
26 1.1 thorpej *
27 1.1 thorpej * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 1.1 thorpej * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 1.1 thorpej * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 1.1 thorpej * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 1.1 thorpej * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 1.1 thorpej * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 1.1 thorpej * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 1.1 thorpej * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 1.1 thorpej * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 1.1 thorpej * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 1.1 thorpej * POSSIBILITY OF SUCH DAMAGE.
38 1.1 thorpej */
39 1.1 thorpej
40 1.1 thorpej /*
41 1.1 thorpej * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
42 1.1 thorpej *
43 1.1 thorpej * Redistribution and use in source and binary forms, with or without
44 1.1 thorpej * modification, are permitted provided that the following conditions
45 1.1 thorpej * are met:
46 1.1 thorpej * 1. Redistributions of source code must retain the above copyright
47 1.1 thorpej * notice, this list of conditions and the following disclaimer.
48 1.1 thorpej * 2. Redistributions in binary form must reproduce the above copyright
49 1.1 thorpej * notice, this list of conditions and the following disclaimer in the
50 1.1 thorpej * documentation and/or other materials provided with the distribution.
51 1.1 thorpej * 3. All advertising materials mentioning features or use of this software
52 1.1 thorpej * must display the following acknowledgement:
53 1.1 thorpej * This product includes software developed by Manuel Bouyer.
54 1.1 thorpej * 4. The name of the author may not be used to endorse or promote products
55 1.1 thorpej * derived from this software without specific prior written permission.
56 1.1 thorpej *
57 1.1 thorpej * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
58 1.1 thorpej * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
59 1.1 thorpej * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
60 1.1 thorpej * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
61 1.1 thorpej * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
62 1.1 thorpej * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
63 1.1 thorpej * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
64 1.1 thorpej * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
65 1.1 thorpej * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
66 1.1 thorpej * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
67 1.1 thorpej */
68 1.1 thorpej
69 1.1 thorpej /*
70 1.1 thorpej * driver for Seeq 80220/80221 and 80223 10/100 ethernet PHYs
71 1.1 thorpej * datasheet from www.seeq.com
72 1.1 thorpej */
73 1.1 thorpej
74 1.1 thorpej #include <sys/param.h>
75 1.1 thorpej #include <sys/systm.h>
76 1.1 thorpej #include <sys/kernel.h>
77 1.1 thorpej #include <sys/device.h>
78 1.1 thorpej #include <sys/malloc.h>
79 1.1 thorpej #include <sys/socket.h>
80 1.9 thorpej #include <sys/errno.h>
81 1.1 thorpej
82 1.1 thorpej #include <net/if.h>
83 1.1 thorpej #include <net/if_media.h>
84 1.1 thorpej
85 1.1 thorpej #include <dev/mii/mii.h>
86 1.1 thorpej #include <dev/mii/miivar.h>
87 1.1 thorpej #include <dev/mii/miidevs.h>
88 1.1 thorpej
89 1.1 thorpej #include <dev/mii/sqphyreg.h>
90 1.1 thorpej
91 1.1 thorpej int sqphymatch __P((struct device *, struct cfdata *, void *));
92 1.1 thorpej void sqphyattach __P((struct device *, struct device *, void *));
93 1.1 thorpej
94 1.1 thorpej struct cfattach sqphy_ca = {
95 1.6 thorpej sizeof(struct mii_softc), sqphymatch, sqphyattach
96 1.1 thorpej };
97 1.1 thorpej
98 1.1 thorpej int sqphy_service __P((struct mii_softc *, struct mii_data *, int));
99 1.6 thorpej void sqphy_status __P((struct mii_softc *));
100 1.1 thorpej
101 1.1 thorpej int
102 1.1 thorpej sqphymatch(parent, match, aux)
103 1.1 thorpej struct device *parent;
104 1.1 thorpej struct cfdata *match;
105 1.1 thorpej void *aux;
106 1.1 thorpej {
107 1.1 thorpej struct mii_attach_args *ma = aux;
108 1.1 thorpej
109 1.10 drochner if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxSEEQ &&
110 1.10 drochner MII_MODEL(ma->mii_id2) == MII_MODEL_xxSEEQ_80220)
111 1.5 thorpej return (10);
112 1.1 thorpej
113 1.1 thorpej return (0);
114 1.1 thorpej }
115 1.1 thorpej
116 1.1 thorpej void
117 1.1 thorpej sqphyattach(parent, self, aux)
118 1.1 thorpej struct device *parent, *self;
119 1.1 thorpej void *aux;
120 1.1 thorpej {
121 1.6 thorpej struct mii_softc *sc = (struct mii_softc *)self;
122 1.1 thorpej struct mii_attach_args *ma = aux;
123 1.1 thorpej struct mii_data *mii = ma->mii_data;
124 1.1 thorpej
125 1.10 drochner printf(": %s, rev. %d\n", MII_STR_xxSEEQ_80220,
126 1.1 thorpej MII_REV(ma->mii_id2));
127 1.1 thorpej
128 1.6 thorpej sc->mii_inst = mii->mii_instance;
129 1.6 thorpej sc->mii_phy = ma->mii_phyno;
130 1.6 thorpej sc->mii_service = sqphy_service;
131 1.6 thorpej sc->mii_pdata = mii;
132 1.1 thorpej
133 1.6 thorpej mii_phy_reset(sc);
134 1.1 thorpej
135 1.6 thorpej sc->mii_capabilities =
136 1.6 thorpej PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
137 1.6 thorpej printf("%s: ", sc->mii_dev.dv_xname);
138 1.6 thorpej if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
139 1.1 thorpej printf("no media present");
140 1.1 thorpej else
141 1.11 thorpej mii_add_media(sc);
142 1.1 thorpej printf("\n");
143 1.1 thorpej }
144 1.1 thorpej
145 1.1 thorpej int
146 1.6 thorpej sqphy_service(sc, mii, cmd)
147 1.6 thorpej struct mii_softc *sc;
148 1.1 thorpej struct mii_data *mii;
149 1.1 thorpej int cmd;
150 1.1 thorpej {
151 1.1 thorpej struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
152 1.1 thorpej int reg;
153 1.1 thorpej
154 1.1 thorpej switch (cmd) {
155 1.1 thorpej case MII_POLLSTAT:
156 1.1 thorpej /*
157 1.1 thorpej * If we're not polling our PHY instance, just return.
158 1.1 thorpej */
159 1.6 thorpej if (IFM_INST(ife->ifm_media) != sc->mii_inst)
160 1.1 thorpej return (0);
161 1.1 thorpej break;
162 1.1 thorpej
163 1.1 thorpej case MII_MEDIACHG:
164 1.1 thorpej /*
165 1.1 thorpej * If the media indicates a different PHY instance,
166 1.1 thorpej * isolate ourselves.
167 1.1 thorpej */
168 1.6 thorpej if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
169 1.6 thorpej reg = PHY_READ(sc, MII_BMCR);
170 1.6 thorpej PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
171 1.1 thorpej return (0);
172 1.1 thorpej }
173 1.1 thorpej
174 1.1 thorpej /*
175 1.1 thorpej * If the interface is not up, don't do anything.
176 1.1 thorpej */
177 1.1 thorpej if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
178 1.1 thorpej break;
179 1.1 thorpej
180 1.1 thorpej switch (IFM_SUBTYPE(ife->ifm_media)) {
181 1.1 thorpej case IFM_AUTO:
182 1.1 thorpej /*
183 1.1 thorpej * If we're already in auto mode, just return.
184 1.1 thorpej */
185 1.6 thorpej if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
186 1.1 thorpej return (0);
187 1.9 thorpej (void) mii_phy_auto(sc, 1);
188 1.1 thorpej break;
189 1.1 thorpej default:
190 1.11 thorpej mii_phy_setmedia(sc);
191 1.1 thorpej }
192 1.1 thorpej break;
193 1.1 thorpej
194 1.1 thorpej case MII_TICK:
195 1.1 thorpej /*
196 1.1 thorpej * If we're not currently selected, just return.
197 1.1 thorpej */
198 1.6 thorpej if (IFM_INST(ife->ifm_media) != sc->mii_inst)
199 1.1 thorpej return (0);
200 1.1 thorpej
201 1.1 thorpej /*
202 1.1 thorpej * Only used for autonegotiation.
203 1.1 thorpej */
204 1.1 thorpej if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
205 1.1 thorpej return (0);
206 1.1 thorpej
207 1.1 thorpej /*
208 1.1 thorpej * Is the interface even up?
209 1.1 thorpej */
210 1.1 thorpej if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
211 1.1 thorpej return (0);
212 1.1 thorpej
213 1.1 thorpej /*
214 1.1 thorpej * Check to see if we have link. If we do, we don't
215 1.1 thorpej * need to restart the autonegotiation process. Read
216 1.1 thorpej * the BMSR twice in case it's latched.
217 1.1 thorpej */
218 1.6 thorpej reg = PHY_READ(sc, MII_BMSR) |
219 1.6 thorpej PHY_READ(sc, MII_BMSR);
220 1.1 thorpej if (reg & BMSR_LINK)
221 1.1 thorpej return (0);
222 1.1 thorpej
223 1.1 thorpej /*
224 1.1 thorpej * Only retry autonegotiation every 5 seconds.
225 1.1 thorpej */
226 1.6 thorpej if (++sc->mii_ticks != 5)
227 1.1 thorpej return (0);
228 1.1 thorpej
229 1.6 thorpej sc->mii_ticks = 0;
230 1.6 thorpej mii_phy_reset(sc);
231 1.9 thorpej if (mii_phy_auto(sc, 0) == EJUSTRETURN)
232 1.9 thorpej return (0);
233 1.1 thorpej break;
234 1.1 thorpej }
235 1.1 thorpej
236 1.1 thorpej /* Update the media status. */
237 1.1 thorpej sqphy_status(sc);
238 1.1 thorpej
239 1.1 thorpej /* Callback if something changed. */
240 1.6 thorpej if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
241 1.6 thorpej (*mii->mii_statchg)(sc->mii_dev.dv_parent);
242 1.6 thorpej sc->mii_active = mii->mii_media_active;
243 1.1 thorpej }
244 1.1 thorpej return (0);
245 1.1 thorpej }
246 1.1 thorpej
247 1.1 thorpej void
248 1.1 thorpej sqphy_status(sc)
249 1.6 thorpej struct mii_softc *sc;
250 1.1 thorpej {
251 1.6 thorpej struct mii_data *mii = sc->mii_pdata;
252 1.11 thorpej struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
253 1.1 thorpej int bmsr, bmcr, status;
254 1.1 thorpej
255 1.1 thorpej mii->mii_media_status = IFM_AVALID;
256 1.1 thorpej mii->mii_media_active = IFM_ETHER;
257 1.1 thorpej
258 1.6 thorpej bmsr = PHY_READ(sc, MII_BMSR) |
259 1.6 thorpej PHY_READ(sc, MII_BMSR);
260 1.1 thorpej if (bmsr & BMSR_LINK)
261 1.1 thorpej mii->mii_media_status |= IFM_ACTIVE;
262 1.1 thorpej
263 1.6 thorpej bmcr = PHY_READ(sc, MII_BMCR);
264 1.1 thorpej if (bmcr & BMCR_ISO) {
265 1.1 thorpej mii->mii_media_active |= IFM_NONE;
266 1.1 thorpej mii->mii_media_status = 0;
267 1.1 thorpej return;
268 1.1 thorpej }
269 1.1 thorpej
270 1.1 thorpej if (bmcr & BMCR_LOOP)
271 1.1 thorpej mii->mii_media_active |= IFM_LOOP;
272 1.1 thorpej
273 1.7 thorpej if (bmcr & BMCR_AUTOEN) {
274 1.7 thorpej if ((bmsr & BMSR_ACOMP) == 0) {
275 1.7 thorpej /* Erg, still trying, I guess... */
276 1.7 thorpej mii->mii_media_active |= IFM_NONE;
277 1.7 thorpej return;
278 1.7 thorpej }
279 1.7 thorpej status = PHY_READ(sc, MII_SQPHY_STATUS);
280 1.7 thorpej if (status & STATUS_SPD_DET)
281 1.7 thorpej mii->mii_media_active |= IFM_100_TX;
282 1.7 thorpej else
283 1.7 thorpej mii->mii_media_active |= IFM_10_T;
284 1.7 thorpej if (status & STATUS_DPLX_DET)
285 1.7 thorpej mii->mii_media_active |= IFM_FDX;
286 1.8 thorpej } else
287 1.11 thorpej mii->mii_media_active = ife->ifm_media;
288 1.1 thorpej }
289