iophy.c revision 1.13 1 1.13 thorpej /* $NetBSD: iophy.c,v 1.13 2001/06/02 21:39:39 thorpej Exp $ */
2 1.1 soren
3 1.1 soren /*
4 1.10 thorpej * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
5 1.1 soren * All rights reserved.
6 1.1 soren *
7 1.1 soren * This code is derived from software contributed to The NetBSD Foundation
8 1.1 soren * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 1.1 soren * NASA Ames Research Center.
10 1.1 soren *
11 1.1 soren * Redistribution and use in source and binary forms, with or without
12 1.1 soren * modification, are permitted provided that the following conditions
13 1.1 soren * are met:
14 1.1 soren * 1. Redistributions of source code must retain the above copyright
15 1.1 soren * notice, this list of conditions and the following disclaimer.
16 1.1 soren * 2. Redistributions in binary form must reproduce the above copyright
17 1.1 soren * notice, this list of conditions and the following disclaimer in the
18 1.1 soren * documentation and/or other materials provided with the distribution.
19 1.1 soren * 3. All advertising materials mentioning features or use of this software
20 1.1 soren * must display the following acknowledgement:
21 1.1 soren * This product includes software developed by the NetBSD
22 1.1 soren * Foundation, Inc. and its contributors.
23 1.1 soren * 4. Neither the name of The NetBSD Foundation nor the names of its
24 1.1 soren * contributors may be used to endorse or promote products derived
25 1.1 soren * from this software without specific prior written permission.
26 1.1 soren *
27 1.1 soren * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 1.1 soren * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 1.1 soren * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 1.1 soren * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 1.1 soren * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 1.1 soren * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 1.1 soren * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 1.1 soren * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 1.1 soren * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 1.1 soren * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 1.1 soren * POSSIBILITY OF SUCH DAMAGE.
38 1.1 soren */
39 1.1 soren
40 1.1 soren /*
41 1.1 soren * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
42 1.1 soren *
43 1.1 soren * Redistribution and use in source and binary forms, with or without
44 1.1 soren * modification, are permitted provided that the following conditions
45 1.1 soren * are met:
46 1.1 soren * 1. Redistributions of source code must retain the above copyright
47 1.1 soren * notice, this list of conditions and the following disclaimer.
48 1.1 soren * 2. Redistributions in binary form must reproduce the above copyright
49 1.1 soren * notice, this list of conditions and the following disclaimer in the
50 1.1 soren * documentation and/or other materials provided with the distribution.
51 1.1 soren * 3. All advertising materials mentioning features or use of this software
52 1.1 soren * must display the following acknowledgement:
53 1.1 soren * This product includes software developed by Manuel Bouyer.
54 1.1 soren * 4. The name of the author may not be used to endorse or promote products
55 1.1 soren * derived from this software without specific prior written permission.
56 1.1 soren *
57 1.1 soren * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
58 1.1 soren * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
59 1.1 soren * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
60 1.1 soren * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
61 1.1 soren * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
62 1.1 soren * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
63 1.1 soren * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
64 1.1 soren * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
65 1.1 soren * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
66 1.1 soren * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
67 1.1 soren */
68 1.1 soren
69 1.1 soren /*
70 1.1 soren * Intel 82553 PHY driver
71 1.1 soren */
72 1.1 soren
73 1.1 soren #include <sys/param.h>
74 1.1 soren #include <sys/systm.h>
75 1.1 soren #include <sys/kernel.h>
76 1.1 soren #include <sys/device.h>
77 1.1 soren #include <sys/malloc.h>
78 1.1 soren #include <sys/socket.h>
79 1.1 soren
80 1.1 soren #include <net/if.h>
81 1.1 soren #include <net/if_media.h>
82 1.1 soren
83 1.1 soren #include <dev/mii/mii.h>
84 1.1 soren #include <dev/mii/miivar.h>
85 1.1 soren #include <dev/mii/miidevs.h>
86 1.1 soren
87 1.1 soren #include <dev/mii/iophyreg.h>
88 1.1 soren
89 1.1 soren int iophymatch __P((struct device *, struct cfdata *, void *));
90 1.1 soren void iophyattach __P((struct device *, struct device *, void *));
91 1.1 soren
92 1.1 soren struct cfattach iophy_ca = {
93 1.5 thorpej sizeof(struct mii_softc), iophymatch, iophyattach, mii_phy_detach,
94 1.5 thorpej mii_phy_activate
95 1.1 soren };
96 1.1 soren
97 1.1 soren int iophy_service __P((struct mii_softc *, struct mii_data *, int));
98 1.1 soren void iophy_status __P((struct mii_softc *));
99 1.1 soren
100 1.10 thorpej const struct mii_phy_funcs iophy_funcs = {
101 1.10 thorpej iophy_service, iophy_status, mii_phy_reset,
102 1.10 thorpej };
103 1.10 thorpej
104 1.13 thorpej const struct mii_phydesc iophys[] = {
105 1.13 thorpej { MII_OUI_xxINTEL, MII_MODEL_xxINTEL_I82553,
106 1.13 thorpej MII_STR_xxINTEL_I82553 },
107 1.13 thorpej
108 1.13 thorpej { MII_OUI_yyINTEL, MII_MODEL_yyINTEL_I82553,
109 1.13 thorpej MII_STR_yyINTEL_I82553 },
110 1.13 thorpej
111 1.13 thorpej { 0, 0,
112 1.13 thorpej NULL },
113 1.13 thorpej };
114 1.13 thorpej
115 1.1 soren int
116 1.1 soren iophymatch(parent, match, aux)
117 1.1 soren struct device *parent;
118 1.1 soren struct cfdata *match;
119 1.1 soren void *aux;
120 1.1 soren {
121 1.1 soren struct mii_attach_args *ma = aux;
122 1.1 soren
123 1.13 thorpej if (mii_phy_match(ma, iophys) != NULL)
124 1.1 soren return (10);
125 1.1 soren
126 1.1 soren return (0);
127 1.1 soren }
128 1.1 soren
129 1.1 soren void
130 1.1 soren iophyattach(parent, self, aux)
131 1.1 soren struct device *parent, *self;
132 1.1 soren void *aux;
133 1.1 soren {
134 1.1 soren struct mii_softc *sc = (struct mii_softc *)self;
135 1.1 soren struct mii_attach_args *ma = aux;
136 1.1 soren struct mii_data *mii = ma->mii_data;
137 1.13 thorpej const struct mii_phydesc *mpd;
138 1.1 soren
139 1.13 thorpej mpd = mii_phy_match(ma, iophys);
140 1.13 thorpej printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
141 1.1 soren
142 1.1 soren sc->mii_inst = mii->mii_instance;
143 1.1 soren sc->mii_phy = ma->mii_phyno;
144 1.10 thorpej sc->mii_funcs = &iophy_funcs;
145 1.1 soren sc->mii_pdata = mii;
146 1.6 thorpej sc->mii_flags = mii->mii_flags;
147 1.12 thorpej sc->mii_anegticks = 5;
148 1.1 soren
149 1.10 thorpej PHY_RESET(sc);
150 1.1 soren
151 1.1 soren sc->mii_capabilities =
152 1.1 soren PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
153 1.1 soren printf("%s: ", sc->mii_dev.dv_xname);
154 1.1 soren if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
155 1.1 soren printf("no media present");
156 1.1 soren else
157 1.5 thorpej mii_phy_add_media(sc);
158 1.1 soren printf("\n");
159 1.1 soren }
160 1.1 soren
161 1.1 soren int
162 1.1 soren iophy_service(sc, mii, cmd)
163 1.1 soren struct mii_softc *sc;
164 1.1 soren struct mii_data *mii;
165 1.1 soren int cmd;
166 1.1 soren {
167 1.1 soren struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
168 1.1 soren int reg;
169 1.4 thorpej
170 1.4 thorpej if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0)
171 1.4 thorpej return (ENXIO);
172 1.1 soren
173 1.1 soren switch (cmd) {
174 1.1 soren case MII_POLLSTAT:
175 1.1 soren /*
176 1.1 soren * If we're not polling our PHY instance, just return.
177 1.1 soren */
178 1.1 soren if (IFM_INST(ife->ifm_media) != sc->mii_inst)
179 1.1 soren return (0);
180 1.1 soren break;
181 1.1 soren
182 1.1 soren case MII_MEDIACHG:
183 1.1 soren /*
184 1.1 soren * If the media indicates a different PHY instance,
185 1.1 soren * isolate ourselves.
186 1.1 soren */
187 1.1 soren if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
188 1.1 soren reg = PHY_READ(sc, MII_BMCR);
189 1.1 soren PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
190 1.1 soren return (0);
191 1.1 soren }
192 1.1 soren
193 1.1 soren /*
194 1.1 soren * If the interface is not up, don't do anything.
195 1.1 soren */
196 1.1 soren if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
197 1.1 soren break;
198 1.1 soren
199 1.8 thorpej mii_phy_setmedia(sc);
200 1.1 soren break;
201 1.1 soren
202 1.1 soren case MII_TICK:
203 1.1 soren /*
204 1.1 soren * If we're not currently selected, just return.
205 1.1 soren */
206 1.1 soren if (IFM_INST(ife->ifm_media) != sc->mii_inst)
207 1.1 soren return (0);
208 1.1 soren
209 1.9 thorpej if (mii_phy_tick(sc) == EJUSTRETURN)
210 1.1 soren return (0);
211 1.1 soren break;
212 1.3 thorpej
213 1.3 thorpej case MII_DOWN:
214 1.3 thorpej mii_phy_down(sc);
215 1.3 thorpej return (0);
216 1.1 soren }
217 1.1 soren
218 1.1 soren /* Update the media status. */
219 1.7 thorpej mii_phy_status(sc);
220 1.1 soren
221 1.1 soren /* Callback if something changed. */
222 1.9 thorpej mii_phy_update(sc, cmd);
223 1.1 soren return (0);
224 1.1 soren }
225 1.1 soren
226 1.1 soren void
227 1.1 soren iophy_status(sc)
228 1.1 soren struct mii_softc *sc;
229 1.1 soren {
230 1.1 soren struct mii_data *mii = sc->mii_pdata;
231 1.2 thorpej struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
232 1.1 soren int bmsr, bmcr, ext0;
233 1.1 soren
234 1.1 soren mii->mii_media_status = IFM_AVALID;
235 1.1 soren mii->mii_media_active = IFM_ETHER;
236 1.1 soren
237 1.1 soren bmsr = PHY_READ(sc, MII_BMSR) |
238 1.1 soren PHY_READ(sc, MII_BMSR);
239 1.1 soren if (bmsr & BMSR_LINK)
240 1.1 soren mii->mii_media_status |= IFM_ACTIVE;
241 1.1 soren
242 1.1 soren bmcr = PHY_READ(sc, MII_BMCR);
243 1.1 soren if (bmcr & BMCR_ISO) {
244 1.1 soren mii->mii_media_active |= IFM_NONE;
245 1.1 soren mii->mii_media_status = 0;
246 1.1 soren return;
247 1.1 soren }
248 1.1 soren
249 1.1 soren if (bmcr & BMCR_LOOP)
250 1.1 soren mii->mii_media_active |= IFM_LOOP;
251 1.1 soren
252 1.1 soren if (bmcr & BMCR_AUTOEN) {
253 1.1 soren if ((bmsr & BMSR_ACOMP) == 0) {
254 1.1 soren /* Erg, still trying, I guess... */
255 1.1 soren mii->mii_media_active |= IFM_NONE;
256 1.1 soren return;
257 1.1 soren }
258 1.1 soren ext0 = PHY_READ(sc, MII_IOPHY_EXT0);
259 1.1 soren
260 1.1 soren if (ext0 & EXT0_SPEED)
261 1.1 soren if (bmsr & BMSR_100T4) {
262 1.1 soren mii->mii_media_active |= IFM_100_T4;
263 1.1 soren return;
264 1.1 soren } else {
265 1.1 soren mii->mii_media_active |= IFM_100_TX;
266 1.1 soren }
267 1.1 soren else
268 1.1 soren mii->mii_media_active |= IFM_10_T;
269 1.1 soren
270 1.1 soren if (ext0 & EXT0_DUPLEX)
271 1.1 soren mii->mii_media_active |= IFM_FDX;
272 1.1 soren } else
273 1.2 thorpej mii->mii_media_active = ife->ifm_media;
274 1.1 soren }
275