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 1.4 2003/08/27 09:38:31 rob 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);
106 static int tlphy_detach (device_t);
108 static device_method_t tlphy_methods[] = {
109 /* device interface */
110 DEVMETHOD(device_probe, tlphy_probe),
111 DEVMETHOD(device_attach, tlphy_attach),
112 DEVMETHOD(device_detach, tlphy_detach),
113 DEVMETHOD(device_shutdown, bus_generic_shutdown),
117 static devclass_t tlphy_devclass;
119 static driver_t tlphy_driver = {
122 sizeof(struct tlphy_softc)
125 DRIVER_MODULE(tlphy, miibus, tlphy_driver, tlphy_devclass, 0, 0);
127 int tlphy_service (struct mii_softc *, struct mii_data *, int);
128 int tlphy_auto (struct tlphy_softc *, int);
129 void tlphy_acomp (struct tlphy_softc *);
130 void tlphy_status (struct tlphy_softc *);
132 static int tlphy_probe(dev)
135 struct mii_attach_args *ma;
137 ma = device_get_ivars(dev);
139 if (MII_OUI(ma->mii_id1, ma->mii_id2) != MII_OUI_xxTI ||
140 MII_MODEL(ma->mii_id2) != MII_MODEL_xxTI_TLAN10T)
143 device_set_desc(dev, MII_STR_xxTI_TLAN10T);
148 static int tlphy_attach(dev)
151 struct tlphy_softc *sc;
152 struct mii_attach_args *ma;
153 struct mii_data *mii;
154 const char *sep = "";
155 int capmask = 0xFFFFFFFF;
157 sc = device_get_softc(dev);
158 ma = device_get_ivars(dev);
159 sc->sc_mii.mii_dev = device_get_parent(dev);
160 mii = device_get_softc(sc->sc_mii.mii_dev);
161 LIST_INSERT_HEAD(&mii->mii_phys, &sc->sc_mii, mii_list);
163 sc->sc_mii.mii_inst = mii->mii_instance;
164 sc->sc_mii.mii_phy = ma->mii_phyno;
165 sc->sc_mii.mii_service = tlphy_service;
166 sc->sc_mii.mii_pdata = mii;
168 if (mii->mii_instance) {
169 struct mii_softc *other;
173 device_get_children(sc->sc_mii.mii_dev, &devlist, &devs);
174 for (i = 0; i < devs; i++) {
175 if (strcmp(device_get_name(devlist[i]), "tlphy")) {
176 other = device_get_softc(devlist[i]);
177 capmask &= ~other->mii_capabilities;
181 free(devlist, M_TEMP);
186 sc->sc_mii.mii_flags &= ~MIIF_NOISOLATE;
187 mii_phy_reset(&sc->sc_mii);
188 sc->sc_mii.mii_flags |= MIIF_NOISOLATE;
191 * Note that if we're on a device that also supports 100baseTX,
192 * we are not going to want to use the built-in 10baseT port,
193 * since there will be another PHY on the MII wired up to the
194 * UTP connector. The parent indicates this to us by specifying
195 * the TLPHY_MEDIA_NO_10_T bit.
197 sc->sc_mii.mii_capabilities =
198 PHY_READ(&sc->sc_mii, MII_BMSR) & capmask /*ma->mii_capmask*/;
200 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
202 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->sc_mii.mii_inst),
205 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_LOOP,
206 sc->sc_mii.mii_inst), BMCR_LOOP);
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_add_media(mii, sc->sc_mii.mii_capabilities,
219 sc->sc_mii.mii_inst);
225 MIIBUS_MEDIAINIT(sc->sc_mii.mii_dev);
229 static int tlphy_detach(dev)
232 struct tlphy_softc *sc;
233 struct mii_data *mii;
235 sc = device_get_softc(dev);
236 mii = device_get_softc(device_get_parent(dev));
237 sc->sc_mii.mii_dev = NULL;
238 LIST_REMOVE(&sc->sc_mii, mii_list);
244 tlphy_service(self, mii, cmd)
245 struct mii_softc *self;
246 struct mii_data *mii;
249 struct tlphy_softc *sc = (struct tlphy_softc *)self;
250 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
253 if ((sc->sc_mii.mii_flags & MIIF_DOINGAUTO) == 0 && sc->sc_need_acomp)
259 * If we're not polling our PHY instance, just return.
261 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst)
267 * If the media indicates a different PHY instance,
270 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) {
271 reg = PHY_READ(&sc->sc_mii, MII_BMCR);
272 PHY_WRITE(&sc->sc_mii, MII_BMCR, reg | BMCR_ISO);
277 * If the interface is not up, don't do anything.
279 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
282 switch (IFM_SUBTYPE(ife->ifm_media)) {
285 * The ThunderLAN PHY doesn't self-configure after
286 * an autonegotiation cycle, so there's no such
287 * thing as "already in auto mode".
289 (void) tlphy_auto(sc, 1);
293 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
294 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, CTRL_AUISEL);
298 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, 0);
300 PHY_WRITE(&sc->sc_mii, MII_ANAR,
301 mii_anar(ife->ifm_media));
302 PHY_WRITE(&sc->sc_mii, MII_BMCR, ife->ifm_data);
308 * If we're not currently selected, just return.
310 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst)
314 * Only used for autonegotiation.
316 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
320 * Is the interface even up?
322 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
326 * Check to see if we have link. If we do, we don't
327 * need to restart the autonegotiation process. Read
328 * the BMSR twice in case it's latched.
330 * XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?!
332 reg = PHY_READ(&sc->sc_mii, MII_BMSR) |
333 PHY_READ(&sc->sc_mii, MII_BMSR);
338 * Only retry autonegotiation every 5 seconds.
340 if (++sc->sc_mii.mii_ticks != 5)
343 sc->sc_mii.mii_ticks = 0;
344 mii_phy_reset(&sc->sc_mii);
345 if (tlphy_auto(sc, 0) == EJUSTRETURN)
350 /* Update the media status. */
353 /* Callback if something changed. */
354 if (sc->sc_mii.mii_active != mii->mii_media_active ||
355 cmd == MII_MEDIACHG) {
356 MIIBUS_STATCHG(sc->sc_mii.mii_dev);
357 sc->sc_mii.mii_active = mii->mii_media_active;
364 struct tlphy_softc *sc;
366 struct mii_data *mii = sc->sc_mii.mii_pdata;
367 int bmsr, bmcr, tlctrl;
369 mii->mii_media_status = IFM_AVALID;
370 mii->mii_media_active = IFM_ETHER;
372 bmcr = PHY_READ(&sc->sc_mii, MII_BMCR);
373 if (bmcr & BMCR_ISO) {
374 mii->mii_media_active |= IFM_NONE;
375 mii->mii_media_status = 0;
379 tlctrl = PHY_READ(&sc->sc_mii, MII_TLPHY_CTRL);
380 if (tlctrl & CTRL_AUISEL) {
381 mii->mii_media_status = 0;
382 mii->mii_media_active = mii->mii_media.ifm_cur->ifm_media;
386 bmsr = PHY_READ(&sc->sc_mii, MII_BMSR) |
387 PHY_READ(&sc->sc_mii, MII_BMSR);
388 if (bmsr & BMSR_LINK)
389 mii->mii_media_status |= IFM_ACTIVE;
391 if (bmcr & BMCR_LOOP)
392 mii->mii_media_active |= IFM_LOOP;
395 * Grr, braindead ThunderLAN PHY doesn't have any way to
396 * tell which media is actually active. (Note it also
397 * doesn't self-configure after autonegotiation.) We
398 * just have to report what's in the BMCR.
401 mii->mii_media_active |= IFM_FDX;
402 mii->mii_media_active |= IFM_10_T;
406 tlphy_auto(sc, waitfor)
407 struct tlphy_softc *sc;
412 switch ((error = mii_phy_auto(&sc->sc_mii, waitfor))) {
415 * Just assume we're not in full-duplex mode.
416 * XXX Check link and try AUI/BNC?
418 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
422 /* Flag that we need to program when it completes. */
423 sc->sc_need_acomp = 1;
435 struct tlphy_softc *sc;
439 sc->sc_need_acomp = 0;
442 * Grr, braindead ThunderLAN PHY doesn't self-configure
443 * after autonegotiation. We have to do it ourselves
444 * based on the link partner status.
447 aner = PHY_READ(&sc->sc_mii, MII_ANER);
448 if (aner & ANER_LPAN) {
449 anlpar = PHY_READ(&sc->sc_mii, MII_ANLPAR) &
450 PHY_READ(&sc->sc_mii, MII_ANAR);
451 if (anlpar & ANAR_10_FD) {
452 PHY_WRITE(&sc->sc_mii, MII_BMCR, BMCR_FDX);
456 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);