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.
39 * $FreeBSD: src/sys/dev/mii/tlphy.c,v 1.2.2.2 2001/07/29 22:48:37 kris Exp $
40 * $DragonFly: src/sys/dev/netif/mii_layer/tlphy.c,v 1.10 2006/09/05 00:55:40 dillon Exp $
44 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
46 * Redistribution and use in source and binary forms, with or without
47 * modification, are permitted provided that the following conditions
49 * 1. Redistributions of source code must retain the above copyright
50 * notice, this list of conditions and the following disclaimer.
51 * 2. Redistributions in binary form must reproduce the above copyright
52 * notice, this list of conditions and the following disclaimer in the
53 * documentation and/or other materials provided with the distribution.
54 * 3. All advertising materials mentioning features or use of this software
55 * must display the following acknowledgement:
56 * This product includes software developed by Manuel Bouyer.
57 * 4. The name of the author may not be used to endorse or promote products
58 * derived from this software without specific prior written permission.
60 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
61 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
62 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
63 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
64 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
65 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
66 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
67 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
68 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
69 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
73 * Driver for Texas Instruments's ThunderLAN PHYs
76 #include <sys/param.h>
77 #include <sys/systm.h>
78 #include <sys/kernel.h>
79 #include <sys/socket.h>
80 #include <sys/errno.h>
81 #include <sys/module.h>
83 #include <sys/malloc.h>
85 #include <machine/bus.h>
86 #include <machine/clock.h>
89 #include <net/if_media.h>
97 #include "miibus_if.h"
100 struct mii_softc sc_mii; /* generic PHY */
104 static int tlphy_probe (device_t);
105 static int tlphy_attach (device_t);
107 static device_method_t tlphy_methods[] = {
108 /* device interface */
109 DEVMETHOD(device_probe, tlphy_probe),
110 DEVMETHOD(device_attach, tlphy_attach),
111 DEVMETHOD(device_detach, ukphy_detach),
112 DEVMETHOD(device_shutdown, bus_generic_shutdown),
116 static const struct mii_phydesc tlphys[] = {
117 MII_PHYDESC(xxTI, TLAN10T),
121 static devclass_t tlphy_devclass;
123 static driver_t tlphy_driver = {
126 sizeof(struct tlphy_softc)
129 DRIVER_MODULE(tlphy, miibus, tlphy_driver, tlphy_devclass, 0, 0);
131 static int tlphy_service(struct mii_softc *, struct mii_data *, int);
132 static int tlphy_auto(struct tlphy_softc *, int);
133 static void tlphy_acomp(struct tlphy_softc *);
134 static void tlphy_status(struct tlphy_softc *);
137 tlphy_probe(device_t dev)
139 struct mii_attach_args *ma = device_get_ivars(dev);
140 const struct mii_phydesc *mpd;
142 mpd = mii_phy_match(ma, tlphys);
144 device_set_desc(dev, mpd->mpd_name);
151 tlphy_attach(device_t 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 mii_softc_init(&sc->sc_mii, ma);
162 sc->sc_mii.mii_dev = device_get_parent(dev);
163 mii = device_get_softc(sc->sc_mii.mii_dev);
164 LIST_INSERT_HEAD(&mii->mii_phys, &sc->sc_mii, mii_list);
166 sc->sc_mii.mii_inst = mii->mii_instance;
167 sc->sc_mii.mii_service = tlphy_service;
168 sc->sc_mii.mii_reset = mii_phy_reset;
169 sc->sc_mii.mii_pdata = mii;
171 if (mii->mii_instance) {
172 struct mii_softc *other;
176 device_get_children(sc->sc_mii.mii_dev, &devlist, &devs);
177 for (i = 0; i < devs; i++) {
178 if (strcmp(device_get_name(devlist[i]), "tlphy")) {
179 other = device_get_softc(devlist[i]);
180 capmask &= ~other->mii_capabilities;
184 kfree(devlist, M_TEMP);
189 sc->sc_mii.mii_flags &= ~MIIF_NOISOLATE;
190 mii_phy_reset(&sc->sc_mii);
191 sc->sc_mii.mii_flags |= MIIF_NOISOLATE;
194 * Note that if we're on a device that also supports 100baseTX,
195 * we are not going to want to use the built-in 10baseT port,
196 * since there will be another PHY on the MII wired up to the
197 * UTP connector. The parent indicates this to us by specifying
198 * the TLPHY_MEDIA_NO_10_T bit.
200 sc->sc_mii.mii_capabilities =
201 PHY_READ(&sc->sc_mii, MII_BMSR) & capmask /*ma->mii_capmask*/;
203 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
205 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_LOOP,
206 sc->sc_mii.mii_inst), MII_MEDIA_10_T);
208 #define PRINT(s) printf("%s%s", sep, s); sep = ", "
210 device_printf(dev, " ");
211 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_2, 0, sc->sc_mii.mii_inst), 0);
212 PRINT("10base2/BNC");
213 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, sc->sc_mii.mii_inst), 0);
214 PRINT("10base5/AUI");
216 if (sc->sc_mii.mii_capabilities & BMSR_MEDIAMASK) {
218 mii_phy_add_media(&sc->sc_mii);
220 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->sc_mii.mii_inst),
227 MIIBUS_MEDIAINIT(sc->sc_mii.mii_dev);
232 tlphy_service(struct mii_softc *self, struct mii_data *mii, int cmd)
234 struct tlphy_softc *sc = (struct tlphy_softc *)self;
235 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
238 if ((sc->sc_mii.mii_flags & MIIF_DOINGAUTO) == 0 && sc->sc_need_acomp)
244 * If we're not polling our PHY instance, just return.
246 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst)
252 * If the media indicates a different PHY instance,
255 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) {
256 reg = PHY_READ(&sc->sc_mii, MII_BMCR);
257 PHY_WRITE(&sc->sc_mii, MII_BMCR, reg | BMCR_ISO);
262 * If the interface is not up, don't do anything.
264 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
267 switch (IFM_SUBTYPE(ife->ifm_media)) {
270 * The ThunderLAN PHY doesn't self-configure after
271 * an autonegotiation cycle, so there's no such
272 * thing as "already in auto mode".
278 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
279 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, CTRL_AUISEL);
283 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, 0);
285 mii_phy_set_media(&sc->sc_mii);
292 * If we're not currently selected, just return.
294 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst)
298 * Is the interface even up?
300 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
304 * Only used for autonegotiation.
306 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
310 * Check to see if we have link. If we do, we don't
311 * need to restart the autonegotiation process. Read
312 * the BMSR twice in case it's latched.
314 * XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?!
316 reg = PHY_READ(&sc->sc_mii, MII_BMSR) |
317 PHY_READ(&sc->sc_mii, MII_BMSR);
322 * Only retry autonegotiation every mii_anegticks seconds.
324 if (++sc->sc_mii.mii_ticks <= sc->sc_mii.mii_anegticks)
327 sc->sc_mii.mii_ticks = 0;
328 mii_phy_reset(&sc->sc_mii);
329 if (tlphy_auto(sc, 0) == EJUSTRETURN)
334 /* Update the media status. */
337 /* Callback if something changed. */
338 mii_phy_update(&sc->sc_mii, cmd);
343 tlphy_status(struct tlphy_softc *sc)
345 struct mii_data *mii = sc->sc_mii.mii_pdata;
346 int bmsr, bmcr, tlctrl;
348 mii->mii_media_status = IFM_AVALID;
349 mii->mii_media_active = IFM_ETHER;
351 bmcr = PHY_READ(&sc->sc_mii, MII_BMCR);
352 if (bmcr & BMCR_ISO) {
353 mii->mii_media_active |= IFM_NONE;
354 mii->mii_media_status = 0;
358 tlctrl = PHY_READ(&sc->sc_mii, MII_TLPHY_CTRL);
359 if (tlctrl & CTRL_AUISEL) {
360 mii->mii_media_status = 0;
361 mii->mii_media_active = mii->mii_media.ifm_cur->ifm_media;
365 bmsr = PHY_READ(&sc->sc_mii, MII_BMSR) |
366 PHY_READ(&sc->sc_mii, MII_BMSR);
367 if (bmsr & BMSR_LINK)
368 mii->mii_media_status |= IFM_ACTIVE;
370 if (bmcr & BMCR_LOOP)
371 mii->mii_media_active |= IFM_LOOP;
374 * Grr, braindead ThunderLAN PHY doesn't have any way to
375 * tell which media is actually active. (Note it also
376 * doesn't self-configure after autonegotiation.) We
377 * just have to report what's in the BMCR.
380 mii->mii_media_active |= IFM_FDX;
381 mii->mii_media_active |= IFM_10_T;
385 tlphy_auto(struct tlphy_softc *sc, int waitfor)
389 switch ((error = mii_phy_auto(&sc->sc_mii, waitfor))) {
392 * Just assume we're not in full-duplex mode.
393 * XXX Check link and try AUI/BNC?
395 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
399 /* Flag that we need to program when it completes. */
400 sc->sc_need_acomp = 1;
411 tlphy_acomp(struct tlphy_softc *sc)
415 sc->sc_need_acomp = 0;
418 * Grr, braindead ThunderLAN PHY doesn't self-configure
419 * after autonegotiation. We have to do it ourselves
420 * based on the link partner status.
423 aner = PHY_READ(&sc->sc_mii, MII_ANER);
424 if (aner & ANER_LPAN) {
425 anlpar = PHY_READ(&sc->sc_mii, MII_ANLPAR) &
426 PHY_READ(&sc->sc_mii, MII_ANAR);
427 if (anlpar & ANAR_10_FD) {
428 PHY_WRITE(&sc->sc_mii, MII_BMCR, BMCR_FDX);
432 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);