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.
40 * $FreeBSD: src/sys/dev/mii/lxtphy.c,v 1.1.2.1 2001/06/08 19:58:33 semenu Exp $
41 * $DragonFly: src/sys/dev/netif/mii_layer/lxtphy.c,v 1.4 2003/08/27 09:38:31 rob Exp $
45 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
47 * Redistribution and use in source and binary forms, with or without
48 * modification, are permitted provided that the following conditions
50 * 1. Redistributions of source code must retain the above copyright
51 * notice, this list of conditions and the following disclaimer.
52 * 2. Redistributions in binary form must reproduce the above copyright
53 * notice, this list of conditions and the following disclaimer in the
54 * documentation and/or other materials provided with the distribution.
55 * 3. All advertising materials mentioning features or use of this software
56 * must display the following acknowledgement:
57 * This product includes software developed by Manuel Bouyer.
58 * 4. The name of the author may not be used to endorse or promote products
59 * derived from this software without specific prior written permission.
61 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
62 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
63 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
64 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
65 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
66 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
67 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
68 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
69 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
70 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
74 * driver for Level One's LXT-970 ethernet 10/100 PHY
75 * datasheet from www.level1.com
78 #include <sys/param.h>
79 #include <sys/systm.h>
80 #include <sys/kernel.h>
81 #include <sys/socket.h>
82 #include <sys/errno.h>
83 #include <sys/module.h>
87 #include <net/if_media.h>
93 #include "lxtphyreg.h"
95 #include "miibus_if.h"
97 static int lxtphy_probe (device_t);
98 static int lxtphy_attach (device_t);
99 static int lxtphy_detach (device_t);
101 static device_method_t lxtphy_methods[] = {
102 /* device interface */
103 DEVMETHOD(device_probe, lxtphy_probe),
104 DEVMETHOD(device_attach, lxtphy_attach),
105 DEVMETHOD(device_detach, lxtphy_detach),
106 DEVMETHOD(device_shutdown, bus_generic_shutdown),
110 static devclass_t lxtphy_devclass;
112 static driver_t lxtphy_driver = {
115 sizeof(struct mii_softc)
118 DRIVER_MODULE(lxtphy, miibus, lxtphy_driver, lxtphy_devclass, 0, 0);
120 static int lxtphy_service (struct mii_softc *, struct mii_data *, int);
121 static void lxtphy_status (struct mii_softc *);
122 static void lxtphy_set_tp (struct mii_softc *);
123 static void lxtphy_set_fx (struct mii_softc *);
125 static int lxtphy_probe(dev)
128 struct mii_attach_args *ma;
130 ma = device_get_ivars(dev);
132 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxLEVEL1 &&
133 MII_MODEL(ma->mii_id2) == MII_MODEL_xxLEVEL1_LXT970) {
134 device_set_desc(dev, MII_STR_xxLEVEL1_LXT970);
141 static int lxtphy_attach(dev)
144 struct mii_softc *sc;
145 struct mii_attach_args *ma;
146 struct mii_data *mii;
148 sc = device_get_softc(dev);
149 ma = device_get_ivars(dev);
150 sc->mii_dev = device_get_parent(dev);
151 mii = device_get_softc(sc->mii_dev);
152 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
154 sc->mii_inst = mii->mii_instance;
155 sc->mii_phy = ma->mii_phyno;
156 sc->mii_service = lxtphy_service;
158 sc->mii_flags |= MIIF_NOISOLATE;
164 sc->mii_capabilities =
165 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
166 device_printf(dev, " ");
168 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
169 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
171 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst),
173 printf("100baseFX, ");
174 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst),
176 printf("100baseFX-FDX, ");
179 if (sc->mii_capabilities & BMSR_MEDIAMASK)
180 mii_add_media(mii, sc->mii_capabilities,
184 MIIBUS_MEDIAINIT(sc->mii_dev);
189 static int lxtphy_detach(dev)
192 struct mii_softc *sc;
193 struct mii_data *mii;
195 sc = device_get_softc(dev);
196 mii = device_get_softc(device_get_parent(dev));
198 LIST_REMOVE(sc, mii_list);
204 lxtphy_service(sc, mii, cmd)
205 struct mii_softc *sc;
206 struct mii_data *mii;
209 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
215 * If we're not polling our PHY instance, just return.
217 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
223 * If the media indicates a different PHY instance,
226 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
227 reg = PHY_READ(sc, MII_BMCR);
228 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
233 * If the interface is not up, don't do anything.
235 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
238 switch (IFM_SUBTYPE(ife->ifm_media)) {
241 * If we're already in auto mode, just return.
243 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
248 (void) mii_phy_auto(sc, 1);
252 * XXX Not supported as a manual setting right now.
261 * BMCR data is stored in the ifmedia entry.
263 PHY_WRITE(sc, MII_ANAR,
264 mii_anar(ife->ifm_media));
265 PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
271 * If we're not currently selected, just return.
273 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
277 * Only used for autonegotiation.
279 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
283 * Is the interface even up?
285 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
289 * Check to see if we have link. If we do, we don't
290 * need to restart the autonegotiation process. Read
291 * the BMSR twice in case it's latched.
293 reg = PHY_READ(sc, MII_BMSR) |
294 PHY_READ(sc, MII_BMSR);
299 * Only retry autonegotiation every 5 seconds.
301 if (++sc->mii_ticks != 5)
306 if (mii_phy_auto(sc, 0) == EJUSTRETURN)
311 /* Update the media status. */
314 /* Callback if something changed. */
315 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
316 MIIBUS_STATCHG(sc->mii_dev);
317 sc->mii_active = mii->mii_media_active;
324 struct mii_softc *sc;
326 struct mii_data *mii = sc->mii_pdata;
327 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
330 mii->mii_media_status = IFM_AVALID;
331 mii->mii_media_active = IFM_ETHER;
334 * Get link status from the CSR; we need to read the CSR
335 * for media type anyhow, and the link status in the CSR
336 * doens't latch, so fewer register reads are required.
338 csr = PHY_READ(sc, MII_LXTPHY_CSR);
340 mii->mii_media_status |= IFM_ACTIVE;
342 bmcr = PHY_READ(sc, MII_BMCR);
343 if (bmcr & BMCR_ISO) {
344 mii->mii_media_active |= IFM_NONE;
345 mii->mii_media_status = 0;
349 if (bmcr & BMCR_LOOP)
350 mii->mii_media_active |= IFM_LOOP;
352 if (bmcr & BMCR_AUTOEN) {
353 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
354 if ((bmsr & BMSR_ACOMP) == 0) {
355 /* Erg, still trying, I guess... */
356 mii->mii_media_active |= IFM_NONE;
360 mii->mii_media_active |= IFM_100_TX;
362 mii->mii_media_active |= IFM_10_T;
363 if (csr & CSR_DUPLEX)
364 mii->mii_media_active |= IFM_FDX;
366 mii->mii_media_active = ife->ifm_media;
371 struct mii_softc *sc;
375 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
376 cfg &= ~CONFIG_100BASEFX;
377 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);
382 struct mii_softc *sc;
386 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
387 cfg |= CONFIG_100BASEFX;
388 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);