2 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
7 * NASA Ames Research Center.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the NetBSD
20 * Foundation, Inc. and its contributors.
21 * 4. Neither the name of The NetBSD Foundation nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
39 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
41 * Redistribution and use in source and binary forms, with or without
42 * modification, are permitted provided that the following conditions
44 * 1. Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * 2. Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in the
48 * documentation and/or other materials provided with the distribution.
49 * 3. All advertising materials mentioning features or use of this software
50 * must display the following acknowledgement:
51 * This product includes software developed by Manuel Bouyer.
52 * 4. The name of the author may not be used to endorse or promote products
53 * derived from this software without specific prior written permission.
55 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
56 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
57 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
58 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
59 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
60 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
64 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
68 * Driver for Altima AC101 10/100 PHY
71 #include <sys/param.h>
72 #include <sys/systm.h>
73 #include <sys/kernel.h>
74 #include <sys/socket.h>
75 #include <sys/errno.h>
76 #include <sys/module.h>
80 #include <net/if_media.h>
82 #include <dev/mii/mii.h>
83 #include <dev/mii/miivar.h>
84 #include <dev/mii/miidevs.h>
86 #include <dev/mii/acphyreg.h>
88 #include "miibus_if.h"
91 static const char rcsid[] =
95 static int acphy_probe __P((device_t));
96 static int acphy_attach __P((device_t));
97 static int acphy_detach __P((device_t));
99 static device_method_t acphy_methods[] = {
100 /* device interface */
101 DEVMETHOD(device_probe, acphy_probe),
102 DEVMETHOD(device_attach, acphy_attach),
103 DEVMETHOD(device_detach, acphy_detach),
104 DEVMETHOD(device_shutdown, bus_generic_shutdown),
108 static devclass_t acphy_devclass;
110 static driver_t acphy_driver = {
113 sizeof(struct mii_softc)
116 DRIVER_MODULE(acphy, miibus, acphy_driver, acphy_devclass, 0, 0);
118 int acphy_service __P((struct mii_softc *, struct mii_data *, int));
119 void acphy_reset __P((struct mii_softc *));
120 void acphy_status __P((struct mii_softc *));
122 static int acphy_probe(dev)
125 struct mii_attach_args *ma;
127 ma = device_get_ivars(dev);
129 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxALTIMA &&
130 MII_MODEL(ma->mii_id2) == MII_MODEL_xxALTIMA_AC101) {
131 device_set_desc(dev, MII_STR_xxALTIMA_AC101);
138 static int acphy_attach(dev)
141 struct mii_softc *sc;
142 struct mii_attach_args *ma;
143 struct mii_data *mii;
145 sc = device_get_softc(dev);
146 ma = device_get_ivars(dev);
147 sc->mii_dev = device_get_parent(dev);
148 mii = device_get_softc(sc->mii_dev);
149 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
151 sc->mii_inst = mii->mii_instance;
152 sc->mii_phy = ma->mii_phyno;
153 sc->mii_service = acphy_service;
155 sc->mii_flags |= MIIF_NOISOLATE;
161 sc->mii_capabilities =
162 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
163 device_printf(dev, " ");
164 if (sc->mii_capabilities & BMSR_MEDIAMASK)
165 mii_add_media(mii, sc->mii_capabilities,
169 MIIBUS_MEDIAINIT(sc->mii_dev);
173 static int acphy_detach(dev)
176 struct mii_softc *sc;
177 struct mii_data *mii;
179 sc = device_get_softc(dev);
180 mii = device_get_softc(device_get_parent(dev));
182 LIST_REMOVE(sc, mii_list);
188 acphy_service(sc, mii, cmd)
189 struct mii_softc *sc;
190 struct mii_data *mii;
193 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
199 * If we're not polling our PHY instance, just return.
201 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
207 * If the media indicates a different PHY instance,
210 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
211 reg = PHY_READ(sc, MII_BMCR);
212 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO | BMCR_PDOWN);
217 * If the interface is not up, don't do anything.
219 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
222 /* Wake & deisolate up is needed */
223 reg = PHY_READ(sc, MII_BMCR);
224 if (reg & (BMCR_ISO | BMCR_PDOWN))
225 PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN));
227 switch (IFM_SUBTYPE(ife->ifm_media)) {
230 * If we're already in auto mode, just return.
232 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
235 (void) mii_phy_auto(sc, 1);
240 * BMCR data is stored in the ifmedia entry.
242 PHY_WRITE(sc, MII_ANAR,
243 mii_anar(ife->ifm_media));
244 PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
250 * If we're not currently selected, just return.
252 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
256 * Only used for autonegotiation.
258 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
262 * Is the interface even up?
264 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
268 * Check to see if we have link. If we do, we don't
269 * need to restart the autonegotiation process. Read
270 * the BMSR twice in case it's latched.
272 reg = PHY_READ(sc, MII_BMSR) |
273 PHY_READ(sc, MII_BMSR);
278 * Only retry autonegotiation every 5 seconds.
280 if (++sc->mii_ticks != 5)
285 if (mii_phy_auto(sc, 0) == EJUSTRETURN)
290 /* Update the media status. */
293 /* Callback if something changed. */
294 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
295 MIIBUS_STATCHG(sc->mii_dev);
296 sc->mii_active = mii->mii_media_active;
303 struct mii_softc *sc;
305 struct mii_data *mii = sc->mii_pdata;
306 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
307 int bmsr, bmcr, diag;
309 mii->mii_media_status = IFM_AVALID;
310 mii->mii_media_active = IFM_ETHER;
312 bmsr = PHY_READ(sc, MII_BMSR) |
313 PHY_READ(sc, MII_BMSR);
314 if (bmsr & BMSR_LINK)
315 mii->mii_media_status |= IFM_ACTIVE;
317 bmcr = PHY_READ(sc, MII_BMCR);
318 if (bmcr & BMCR_ISO) {
319 mii->mii_media_active |= IFM_NONE;
320 mii->mii_media_status = 0;
324 if (bmcr & BMCR_LOOP)
325 mii->mii_media_active |= IFM_LOOP;
327 if (bmcr & BMCR_AUTOEN) {
328 if ((bmsr & BMSR_ACOMP) == 0) {
329 /* Erg, still trying, I guess... */
330 mii->mii_media_active |= IFM_NONE;
333 diag = PHY_READ(sc, MII_ACPHY_DIAG) |
334 PHY_READ(sc, MII_ACPHY_DIAG);
335 if (diag & AC_DIAG_SPEED)
336 mii->mii_media_active |= IFM_100_TX;
338 mii->mii_media_active |= IFM_10_T;
340 if (diag & AC_DIAG_DUPLEX)
341 mii->mii_media_active |= IFM_FDX;
343 mii->mii_media_active = ife->ifm_media;
348 struct mii_softc *sc;
352 PHY_WRITE(sc, MII_ACPHY_INT, 0);