1 /* $NetBSD: tlphy.c,v 1.18 1999/05/14 11:40:28 drochner Exp $ */
4 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
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.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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.
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.
41 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
43 * Redistribution and use in source and binary forms, with or without
44 * modification, are permitted provided that the following conditions
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.
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.
70 * Driver for Texas Instruments's ThunderLAN PHYs
73 #include <sys/param.h>
74 #include <sys/systm.h>
75 #include <sys/kernel.h>
76 #include <sys/socket.h>
77 #include <sys/errno.h>
78 #include <sys/module.h>
80 #include <sys/malloc.h>
82 #include <machine/bus.h>
83 #include <machine/clock.h>
86 #include <net/if_media.h>
88 #include <dev/mii/mii.h>
89 #include <dev/mii/miivar.h>
90 #include <dev/mii/miidevs.h>
92 #include <dev/mii/tlphyreg.h>
94 #include "miibus_if.h"
97 static const char rcsid[] =
98 "$FreeBSD: src/sys/dev/mii/tlphy.c,v 1.2.2.2 2001/07/29 22:48:37 kris Exp $";
102 struct mii_softc sc_mii; /* generic PHY */
106 static int tlphy_probe __P((device_t));
107 static int tlphy_attach __P((device_t));
108 static int tlphy_detach __P((device_t));
110 static device_method_t tlphy_methods[] = {
111 /* device interface */
112 DEVMETHOD(device_probe, tlphy_probe),
113 DEVMETHOD(device_attach, tlphy_attach),
114 DEVMETHOD(device_detach, tlphy_detach),
115 DEVMETHOD(device_shutdown, bus_generic_shutdown),
119 static devclass_t tlphy_devclass;
121 static driver_t tlphy_driver = {
124 sizeof(struct tlphy_softc)
127 DRIVER_MODULE(tlphy, miibus, tlphy_driver, tlphy_devclass, 0, 0);
129 int tlphy_service __P((struct mii_softc *, struct mii_data *, int));
130 int tlphy_auto __P((struct tlphy_softc *, int));
131 void tlphy_acomp __P((struct tlphy_softc *));
132 void tlphy_status __P((struct tlphy_softc *));
134 static int tlphy_probe(dev)
137 struct mii_attach_args *ma;
139 ma = device_get_ivars(dev);
141 if (MII_OUI(ma->mii_id1, ma->mii_id2) != MII_OUI_xxTI ||
142 MII_MODEL(ma->mii_id2) != MII_MODEL_xxTI_TLAN10T)
145 device_set_desc(dev, MII_STR_xxTI_TLAN10T);
150 static int tlphy_attach(dev)
153 struct tlphy_softc *sc;
154 struct mii_attach_args *ma;
155 struct mii_data *mii;
156 const char *sep = "";
157 int capmask = 0xFFFFFFFF;
159 sc = device_get_softc(dev);
160 ma = device_get_ivars(dev);
161 sc->sc_mii.mii_dev = device_get_parent(dev);
162 mii = device_get_softc(sc->sc_mii.mii_dev);
163 LIST_INSERT_HEAD(&mii->mii_phys, &sc->sc_mii, mii_list);
165 sc->sc_mii.mii_inst = mii->mii_instance;
166 sc->sc_mii.mii_phy = ma->mii_phyno;
167 sc->sc_mii.mii_service = tlphy_service;
168 sc->sc_mii.mii_pdata = mii;
170 if (mii->mii_instance) {
171 struct mii_softc *other;
175 device_get_children(sc->sc_mii.mii_dev, &devlist, &devs);
176 for (i = 0; i < devs; i++) {
177 if (strcmp(device_get_name(devlist[i]), "tlphy")) {
178 other = device_get_softc(devlist[i]);
179 capmask &= ~other->mii_capabilities;
183 free(devlist, M_TEMP);
188 sc->sc_mii.mii_flags &= ~MIIF_NOISOLATE;
189 mii_phy_reset(&sc->sc_mii);
190 sc->sc_mii.mii_flags |= MIIF_NOISOLATE;
193 * Note that if we're on a device that also supports 100baseTX,
194 * we are not going to want to use the built-in 10baseT port,
195 * since there will be another PHY on the MII wired up to the
196 * UTP connector. The parent indicates this to us by specifying
197 * the TLPHY_MEDIA_NO_10_T bit.
199 sc->sc_mii.mii_capabilities =
200 PHY_READ(&sc->sc_mii, MII_BMSR) & capmask /*ma->mii_capmask*/;
202 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
204 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->sc_mii.mii_inst),
207 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_LOOP,
208 sc->sc_mii.mii_inst), BMCR_LOOP);
210 #define PRINT(s) printf("%s%s", sep, s); sep = ", "
212 device_printf(dev, " ");
213 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_2, 0, sc->sc_mii.mii_inst), 0);
214 PRINT("10base2/BNC");
215 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, sc->sc_mii.mii_inst), 0);
216 PRINT("10base5/AUI");
218 if (sc->sc_mii.mii_capabilities & BMSR_MEDIAMASK) {
220 mii_add_media(mii, sc->sc_mii.mii_capabilities,
221 sc->sc_mii.mii_inst);
227 MIIBUS_MEDIAINIT(sc->sc_mii.mii_dev);
231 static int tlphy_detach(dev)
234 struct tlphy_softc *sc;
235 struct mii_data *mii;
237 sc = device_get_softc(dev);
238 mii = device_get_softc(device_get_parent(dev));
239 sc->sc_mii.mii_dev = NULL;
240 LIST_REMOVE(&sc->sc_mii, mii_list);
246 tlphy_service(self, mii, cmd)
247 struct mii_softc *self;
248 struct mii_data *mii;
251 struct tlphy_softc *sc = (struct tlphy_softc *)self;
252 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
255 if ((sc->sc_mii.mii_flags & MIIF_DOINGAUTO) == 0 && sc->sc_need_acomp)
261 * If we're not polling our PHY instance, just return.
263 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst)
269 * If the media indicates a different PHY instance,
272 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) {
273 reg = PHY_READ(&sc->sc_mii, MII_BMCR);
274 PHY_WRITE(&sc->sc_mii, MII_BMCR, reg | BMCR_ISO);
279 * If the interface is not up, don't do anything.
281 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
284 switch (IFM_SUBTYPE(ife->ifm_media)) {
287 * The ThunderLAN PHY doesn't self-configure after
288 * an autonegotiation cycle, so there's no such
289 * thing as "already in auto mode".
291 (void) tlphy_auto(sc, 1);
295 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
296 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, CTRL_AUISEL);
300 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, 0);
302 PHY_WRITE(&sc->sc_mii, MII_ANAR,
303 mii_anar(ife->ifm_media));
304 PHY_WRITE(&sc->sc_mii, MII_BMCR, ife->ifm_data);
310 * If we're not currently selected, just return.
312 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst)
316 * Only used for autonegotiation.
318 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
322 * Is the interface even up?
324 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
328 * Check to see if we have link. If we do, we don't
329 * need to restart the autonegotiation process. Read
330 * the BMSR twice in case it's latched.
332 * XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?!
334 reg = PHY_READ(&sc->sc_mii, MII_BMSR) |
335 PHY_READ(&sc->sc_mii, MII_BMSR);
340 * Only retry autonegotiation every 5 seconds.
342 if (++sc->sc_mii.mii_ticks != 5)
345 sc->sc_mii.mii_ticks = 0;
346 mii_phy_reset(&sc->sc_mii);
347 if (tlphy_auto(sc, 0) == EJUSTRETURN)
352 /* Update the media status. */
355 /* Callback if something changed. */
356 if (sc->sc_mii.mii_active != mii->mii_media_active ||
357 cmd == MII_MEDIACHG) {
358 MIIBUS_STATCHG(sc->sc_mii.mii_dev);
359 sc->sc_mii.mii_active = mii->mii_media_active;
366 struct tlphy_softc *sc;
368 struct mii_data *mii = sc->sc_mii.mii_pdata;
369 int bmsr, bmcr, tlctrl;
371 mii->mii_media_status = IFM_AVALID;
372 mii->mii_media_active = IFM_ETHER;
374 bmcr = PHY_READ(&sc->sc_mii, MII_BMCR);
375 if (bmcr & BMCR_ISO) {
376 mii->mii_media_active |= IFM_NONE;
377 mii->mii_media_status = 0;
381 tlctrl = PHY_READ(&sc->sc_mii, MII_TLPHY_CTRL);
382 if (tlctrl & CTRL_AUISEL) {
383 mii->mii_media_status = 0;
384 mii->mii_media_active = mii->mii_media.ifm_cur->ifm_media;
388 bmsr = PHY_READ(&sc->sc_mii, MII_BMSR) |
389 PHY_READ(&sc->sc_mii, MII_BMSR);
390 if (bmsr & BMSR_LINK)
391 mii->mii_media_status |= IFM_ACTIVE;
393 if (bmcr & BMCR_LOOP)
394 mii->mii_media_active |= IFM_LOOP;
397 * Grr, braindead ThunderLAN PHY doesn't have any way to
398 * tell which media is actually active. (Note it also
399 * doesn't self-configure after autonegotiation.) We
400 * just have to report what's in the BMCR.
403 mii->mii_media_active |= IFM_FDX;
404 mii->mii_media_active |= IFM_10_T;
408 tlphy_auto(sc, waitfor)
409 struct tlphy_softc *sc;
414 switch ((error = mii_phy_auto(&sc->sc_mii, waitfor))) {
417 * Just assume we're not in full-duplex mode.
418 * XXX Check link and try AUI/BNC?
420 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
424 /* Flag that we need to program when it completes. */
425 sc->sc_need_acomp = 1;
437 struct tlphy_softc *sc;
441 sc->sc_need_acomp = 0;
444 * Grr, braindead ThunderLAN PHY doesn't self-configure
445 * after autonegotiation. We have to do it ourselves
446 * based on the link partner status.
449 aner = PHY_READ(&sc->sc_mii, MII_ANER);
450 if (aner & ANER_LPAN) {
451 anlpar = PHY_READ(&sc->sc_mii, MII_ANLPAR) &
452 PHY_READ(&sc->sc_mii, MII_ANAR);
453 if (anlpar & ANAR_10_FD) {
454 PHY_WRITE(&sc->sc_mii, MII_BMCR, BMCR_FDX);
458 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);