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 1.5 2004/09/18 19:32:59 dillon 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);
151 sc->mii_dev = device_get_parent(dev);
152 mii = device_get_softc(sc->mii_dev);
153 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
155 sc->mii_inst = mii->mii_instance;
156 sc->mii_phy = ma->mii_phyno;
157 sc->mii_service = lxtphy_service;
159 sc->mii_flags |= MIIF_NOISOLATE;
165 sc->mii_capabilities =
166 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
167 device_printf(dev, " ");
169 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
170 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
172 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst),
174 printf("100baseFX, ");
175 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst),
177 printf("100baseFX-FDX, ");
180 if (sc->mii_capabilities & BMSR_MEDIAMASK)
181 mii_add_media(mii, sc->mii_capabilities,
185 MIIBUS_MEDIAINIT(sc->mii_dev);
190 static int lxtphy_detach(dev)
193 struct mii_softc *sc;
194 struct mii_data *mii;
196 sc = device_get_softc(dev);
197 mii = device_get_softc(device_get_parent(dev));
199 LIST_REMOVE(sc, mii_list);
205 lxtphy_service(sc, mii, cmd)
206 struct mii_softc *sc;
207 struct mii_data *mii;
210 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
216 * If we're not polling our PHY instance, just return.
218 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
224 * If the media indicates a different PHY instance,
227 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
228 reg = PHY_READ(sc, MII_BMCR);
229 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
234 * If the interface is not up, don't do anything.
236 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
239 switch (IFM_SUBTYPE(ife->ifm_media)) {
242 * If we're already in auto mode, just return.
244 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
249 (void) mii_phy_auto(sc, 1);
253 * XXX Not supported as a manual setting right now.
262 * BMCR data is stored in the ifmedia entry.
264 PHY_WRITE(sc, MII_ANAR,
265 mii_anar(ife->ifm_media));
266 PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
272 * If we're not currently selected, just return.
274 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
278 * Only used for autonegotiation.
280 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
284 * Is the interface even up?
286 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
290 * Check to see if we have link. If we do, we don't
291 * need to restart the autonegotiation process. Read
292 * the BMSR twice in case it's latched.
294 reg = PHY_READ(sc, MII_BMSR) |
295 PHY_READ(sc, MII_BMSR);
300 * Only retry autonegotiation every 5 seconds.
302 if (++sc->mii_ticks != 5)
307 if (mii_phy_auto(sc, 0) == EJUSTRETURN)
312 /* Update the media status. */
315 /* Callback if something changed. */
316 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
317 MIIBUS_STATCHG(sc->mii_dev);
318 sc->mii_active = mii->mii_media_active;
325 struct mii_softc *sc;
327 struct mii_data *mii = sc->mii_pdata;
328 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
331 mii->mii_media_status = IFM_AVALID;
332 mii->mii_media_active = IFM_ETHER;
335 * Get link status from the CSR; we need to read the CSR
336 * for media type anyhow, and the link status in the CSR
337 * doens't latch, so fewer register reads are required.
339 csr = PHY_READ(sc, MII_LXTPHY_CSR);
341 mii->mii_media_status |= IFM_ACTIVE;
343 bmcr = PHY_READ(sc, MII_BMCR);
344 if (bmcr & BMCR_ISO) {
345 mii->mii_media_active |= IFM_NONE;
346 mii->mii_media_status = 0;
350 if (bmcr & BMCR_LOOP)
351 mii->mii_media_active |= IFM_LOOP;
353 if (bmcr & BMCR_AUTOEN) {
354 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
355 if ((bmsr & BMSR_ACOMP) == 0) {
356 /* Erg, still trying, I guess... */
357 mii->mii_media_active |= IFM_NONE;
361 mii->mii_media_active |= IFM_100_TX;
363 mii->mii_media_active |= IFM_10_T;
364 if (csr & CSR_DUPLEX)
365 mii->mii_media_active |= IFM_FDX;
367 mii->mii_media_active = ife->ifm_media;
372 struct mii_softc *sc;
376 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
377 cfg &= ~CONFIG_100BASEFX;
378 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);
383 struct mii_softc *sc;
387 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
388 cfg |= CONFIG_100BASEFX;
389 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);