1 /* OpenBSD: lxtphy.c,v 1.5 2000/08/26 20:04:17 nate Exp */
2 /* NetBSD: lxtphy.c,v 1.19 2000/02/02 23:34:57 thorpej Exp */
5 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
10 * NASA Ames Research Center.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the NetBSD
23 * Foundation, Inc. and its contributors.
24 * 4. Neither the name of The NetBSD Foundation nor the names of its
25 * contributors may be used to endorse or promote products derived
26 * from this software without specific prior written permission.
28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGE.
42 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
44 * Redistribution and use in source and binary forms, with or without
45 * modification, are permitted provided that the following conditions
47 * 1. Redistributions of source code must retain the above copyright
48 * notice, this list of conditions and the following disclaimer.
49 * 2. Redistributions in binary form must reproduce the above copyright
50 * notice, this list of conditions and the following disclaimer in the
51 * documentation and/or other materials provided with the distribution.
52 * 3. All advertising materials mentioning features or use of this software
53 * must display the following acknowledgement:
54 * This product includes software developed by Manuel Bouyer.
55 * 4. The name of the author may not be used to endorse or promote products
56 * derived from this software without specific prior written permission.
58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
63 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
64 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
65 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
66 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
67 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
71 * driver for Level One's LXT-970 ethernet 10/100 PHY
72 * datasheet from www.level1.com
75 #include <sys/param.h>
76 #include <sys/systm.h>
77 #include <sys/kernel.h>
78 #include <sys/socket.h>
79 #include <sys/errno.h>
80 #include <sys/module.h>
84 #include <net/if_media.h>
86 #include <dev/mii/mii.h>
87 #include <dev/mii/miivar.h>
88 #include <dev/mii/miidevs.h>
90 #include <dev/mii/lxtphyreg.h>
92 #include "miibus_if.h"
95 static const char rcsid[] =
96 "$FreeBSD: src/sys/dev/mii/lxtphy.c,v 1.1.2.1 2001/06/08 19:58:33 semenu Exp $";
99 static int lxtphy_probe __P((device_t));
100 static int lxtphy_attach __P((device_t));
101 static int lxtphy_detach __P((device_t));
103 static device_method_t lxtphy_methods[] = {
104 /* device interface */
105 DEVMETHOD(device_probe, lxtphy_probe),
106 DEVMETHOD(device_attach, lxtphy_attach),
107 DEVMETHOD(device_detach, lxtphy_detach),
108 DEVMETHOD(device_shutdown, bus_generic_shutdown),
112 static devclass_t lxtphy_devclass;
114 static driver_t lxtphy_driver = {
117 sizeof(struct mii_softc)
120 DRIVER_MODULE(lxtphy, miibus, lxtphy_driver, lxtphy_devclass, 0, 0);
122 static int lxtphy_service __P((struct mii_softc *, struct mii_data *, int));
123 static void lxtphy_status __P((struct mii_softc *));
124 static void lxtphy_set_tp __P((struct mii_softc *));
125 static void lxtphy_set_fx __P((struct mii_softc *));
127 static int lxtphy_probe(dev)
130 struct mii_attach_args *ma;
132 ma = device_get_ivars(dev);
134 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxLEVEL1 &&
135 MII_MODEL(ma->mii_id2) == MII_MODEL_xxLEVEL1_LXT970) {
136 device_set_desc(dev, MII_STR_xxLEVEL1_LXT970);
143 static int lxtphy_attach(dev)
146 struct mii_softc *sc;
147 struct mii_attach_args *ma;
148 struct mii_data *mii;
150 sc = device_get_softc(dev);
151 ma = device_get_ivars(dev);
152 sc->mii_dev = device_get_parent(dev);
153 mii = device_get_softc(sc->mii_dev);
154 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
156 sc->mii_inst = mii->mii_instance;
157 sc->mii_phy = ma->mii_phyno;
158 sc->mii_service = lxtphy_service;
160 sc->mii_flags |= MIIF_NOISOLATE;
166 sc->mii_capabilities =
167 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
168 device_printf(dev, " ");
170 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
171 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
173 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst),
175 printf("100baseFX, ");
176 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst),
178 printf("100baseFX-FDX, ");
181 if (sc->mii_capabilities & BMSR_MEDIAMASK)
182 mii_add_media(mii, sc->mii_capabilities,
186 MIIBUS_MEDIAINIT(sc->mii_dev);
191 static int lxtphy_detach(dev)
194 struct mii_softc *sc;
195 struct mii_data *mii;
197 sc = device_get_softc(dev);
198 mii = device_get_softc(device_get_parent(dev));
200 LIST_REMOVE(sc, mii_list);
206 lxtphy_service(sc, mii, cmd)
207 struct mii_softc *sc;
208 struct mii_data *mii;
211 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
217 * If we're not polling our PHY instance, just return.
219 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
225 * If the media indicates a different PHY instance,
228 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
229 reg = PHY_READ(sc, MII_BMCR);
230 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
235 * If the interface is not up, don't do anything.
237 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
240 switch (IFM_SUBTYPE(ife->ifm_media)) {
243 * If we're already in auto mode, just return.
245 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
250 (void) mii_phy_auto(sc, 1);
254 * XXX Not supported as a manual setting right now.
263 * BMCR data is stored in the ifmedia entry.
265 PHY_WRITE(sc, MII_ANAR,
266 mii_anar(ife->ifm_media));
267 PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
273 * If we're not currently selected, just return.
275 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
279 * Only used for autonegotiation.
281 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
285 * Is the interface even up?
287 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
291 * Check to see if we have link. If we do, we don't
292 * need to restart the autonegotiation process. Read
293 * the BMSR twice in case it's latched.
295 reg = PHY_READ(sc, MII_BMSR) |
296 PHY_READ(sc, MII_BMSR);
301 * Only retry autonegotiation every 5 seconds.
303 if (++sc->mii_ticks != 5)
308 if (mii_phy_auto(sc, 0) == EJUSTRETURN)
313 /* Update the media status. */
316 /* Callback if something changed. */
317 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
318 MIIBUS_STATCHG(sc->mii_dev);
319 sc->mii_active = mii->mii_media_active;
326 struct mii_softc *sc;
328 struct mii_data *mii = sc->mii_pdata;
329 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
332 mii->mii_media_status = IFM_AVALID;
333 mii->mii_media_active = IFM_ETHER;
336 * Get link status from the CSR; we need to read the CSR
337 * for media type anyhow, and the link status in the CSR
338 * doens't latch, so fewer register reads are required.
340 csr = PHY_READ(sc, MII_LXTPHY_CSR);
342 mii->mii_media_status |= IFM_ACTIVE;
344 bmcr = PHY_READ(sc, MII_BMCR);
345 if (bmcr & BMCR_ISO) {
346 mii->mii_media_active |= IFM_NONE;
347 mii->mii_media_status = 0;
351 if (bmcr & BMCR_LOOP)
352 mii->mii_media_active |= IFM_LOOP;
354 if (bmcr & BMCR_AUTOEN) {
355 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
356 if ((bmsr & BMSR_ACOMP) == 0) {
357 /* Erg, still trying, I guess... */
358 mii->mii_media_active |= IFM_NONE;
362 mii->mii_media_active |= IFM_100_TX;
364 mii->mii_media_active |= IFM_10_T;
365 if (csr & CSR_DUPLEX)
366 mii->mii_media_active |= IFM_FDX;
368 mii->mii_media_active = ife->ifm_media;
373 struct mii_softc *sc;
377 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
378 cfg &= ~CONFIG_100BASEFX;
379 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);
384 struct mii_softc *sc;
388 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
389 cfg |= CONFIG_100BASEFX;
390 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);