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.
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD$");
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/cdefs.h>
77 __FBSDID("$FreeBSD$");
79 #include <sys/param.h>
80 #include <sys/systm.h>
81 #include <sys/kernel.h>
82 #include <sys/socket.h>
83 #include <sys/errno.h>
84 #include <sys/module.h>
86 #include <sys/malloc.h>
88 #include <machine/bus.h>
91 #include <net/if_media.h>
93 #include <dev/mii/mii.h>
94 #include <dev/mii/miivar.h>
97 #include <dev/mii/tlphyreg.h>
99 #include "miibus_if.h"
102 struct mii_softc sc_mii; /* generic PHY */
106 static int tlphy_probe(device_t);
107 static int tlphy_attach(device_t);
109 static device_method_t tlphy_methods[] = {
110 /* device interface */
111 DEVMETHOD(device_probe, tlphy_probe),
112 DEVMETHOD(device_attach, tlphy_attach),
113 DEVMETHOD(device_detach, mii_phy_detach),
114 DEVMETHOD(device_shutdown, bus_generic_shutdown),
118 static devclass_t tlphy_devclass;
120 static driver_t tlphy_driver = {
123 sizeof(struct tlphy_softc)
126 DRIVER_MODULE(tlphy, miibus, tlphy_driver, tlphy_devclass, 0, 0);
128 static int tlphy_service(struct mii_softc *, struct mii_data *, int);
129 static int tlphy_auto(struct tlphy_softc *);
130 static void tlphy_acomp(struct tlphy_softc *);
131 static void tlphy_status(struct tlphy_softc *);
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);
154 struct tlphy_softc *sc;
155 struct mii_attach_args *ma;
156 struct mii_data *mii;
157 const char *sep = "";
158 int capmask = 0xFFFFFFFF;
160 sc = device_get_softc(dev);
161 ma = device_get_ivars(dev);
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_phy = ma->mii_phyno;
168 sc->sc_mii.mii_service = tlphy_service;
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 free(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_NONE, 0, sc->sc_mii.mii_inst),
208 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_LOOP,
209 sc->sc_mii.mii_inst), BMCR_LOOP);
211 #define PRINT(s) printf("%s%s", sep, s); sep = ", "
213 device_printf(dev, " ");
214 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_2, 0, sc->sc_mii.mii_inst), 0);
215 PRINT("10base2/BNC");
216 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, sc->sc_mii.mii_inst), 0);
217 PRINT("10base5/AUI");
219 if (sc->sc_mii.mii_capabilities & BMSR_MEDIAMASK) {
221 mii_add_media(&sc->sc_mii);
227 MIIBUS_MEDIAINIT(sc->sc_mii.mii_dev);
232 tlphy_service(self, mii, cmd)
233 struct mii_softc *self;
234 struct mii_data *mii;
237 struct tlphy_softc *sc = (struct tlphy_softc *)self;
238 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
241 if (sc->sc_need_acomp)
247 * If we're not polling our PHY instance, just return.
249 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst)
255 * If the media indicates a different PHY instance,
258 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) {
259 reg = PHY_READ(&sc->sc_mii, MII_BMCR);
260 PHY_WRITE(&sc->sc_mii, MII_BMCR, reg | BMCR_ISO);
265 * If the interface is not up, don't do anything.
267 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
270 switch (IFM_SUBTYPE(ife->ifm_media)) {
273 * The ThunderLAN PHY doesn't self-configure after
274 * an autonegotiation cycle, so there's no such
275 * thing as "already in auto mode".
277 (void) tlphy_auto(sc);
281 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
282 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, CTRL_AUISEL);
286 PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, 0);
288 PHY_WRITE(&sc->sc_mii, MII_ANAR,
289 mii_anar(ife->ifm_media));
290 PHY_WRITE(&sc->sc_mii, MII_BMCR, ife->ifm_data);
296 * If we're not currently selected, just return.
298 if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst)
302 * Is the interface even up?
304 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
308 * Only used for autonegotiation.
310 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
314 * Check to see if we have link. If we do, we don't
315 * need to restart the autonegotiation process. Read
316 * the BMSR twice in case it's latched.
318 * XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?!
320 reg = PHY_READ(&sc->sc_mii, MII_BMSR) |
321 PHY_READ(&sc->sc_mii, MII_BMSR);
326 * Only retry autonegotiation every 5 seconds.
328 if (++sc->sc_mii.mii_ticks != 5)
331 sc->sc_mii.mii_ticks = 0;
332 mii_phy_reset(&sc->sc_mii);
337 /* Update the media status. */
340 /* Callback if something changed. */
341 mii_phy_update(&sc->sc_mii, cmd);
347 struct tlphy_softc *sc;
349 struct mii_data *mii = sc->sc_mii.mii_pdata;
350 int bmsr, bmcr, tlctrl;
352 mii->mii_media_status = IFM_AVALID;
353 mii->mii_media_active = IFM_ETHER;
355 bmcr = PHY_READ(&sc->sc_mii, MII_BMCR);
356 if (bmcr & BMCR_ISO) {
357 mii->mii_media_active |= IFM_NONE;
358 mii->mii_media_status = 0;
362 tlctrl = PHY_READ(&sc->sc_mii, MII_TLPHY_CTRL);
363 if (tlctrl & CTRL_AUISEL) {
364 mii->mii_media_status = 0;
365 mii->mii_media_active = mii->mii_media.ifm_cur->ifm_media;
369 bmsr = PHY_READ(&sc->sc_mii, MII_BMSR) |
370 PHY_READ(&sc->sc_mii, MII_BMSR);
371 if (bmsr & BMSR_LINK)
372 mii->mii_media_status |= IFM_ACTIVE;
374 if (bmcr & BMCR_LOOP)
375 mii->mii_media_active |= IFM_LOOP;
378 * Grr, braindead ThunderLAN PHY doesn't have any way to
379 * tell which media is actually active. (Note it also
380 * doesn't self-configure after autonegotiation.) We
381 * just have to report what's in the BMCR.
384 mii->mii_media_active |= IFM_FDX;
385 mii->mii_media_active |= IFM_10_T;
390 struct tlphy_softc *sc;
394 switch ((error = mii_phy_auto(&sc->sc_mii))) {
397 * Just assume we're not in full-duplex mode.
398 * XXX Check link and try AUI/BNC?
400 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
404 /* Flag that we need to program when it completes. */
405 sc->sc_need_acomp = 1;
417 struct tlphy_softc *sc;
421 sc->sc_need_acomp = 0;
424 * Grr, braindead ThunderLAN PHY doesn't self-configure
425 * after autonegotiation. We have to do it ourselves
426 * based on the link partner status.
429 aner = PHY_READ(&sc->sc_mii, MII_ANER);
430 if (aner & ANER_LPAN) {
431 anlpar = PHY_READ(&sc->sc_mii, MII_ANLPAR) &
432 PHY_READ(&sc->sc_mii, MII_ANAR);
433 if (anlpar & ANAR_10_FD) {
434 PHY_WRITE(&sc->sc_mii, MII_BMCR, BMCR_FDX);
438 PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);