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.
21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
35 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
47 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
48 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
49 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
50 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
51 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
52 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
53 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
54 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
55 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
58 #include <sys/cdefs.h>
59 __FBSDID("$FreeBSD$");
62 * driver for Level One's LXT-970 ethernet 10/100 PHY
63 * datasheet from www.level1.com
66 #include <sys/param.h>
67 #include <sys/systm.h>
68 #include <sys/kernel.h>
69 #include <sys/socket.h>
70 #include <sys/errno.h>
71 #include <sys/module.h>
75 #include <net/if_media.h>
77 #include <dev/mii/mii.h>
78 #include <dev/mii/miivar.h>
81 #include <dev/mii/lxtphyreg.h>
83 #include "miibus_if.h"
85 static int lxtphy_probe(device_t);
86 static int lxtphy_attach(device_t);
88 static device_method_t lxtphy_methods[] = {
89 /* device interface */
90 DEVMETHOD(device_probe, lxtphy_probe),
91 DEVMETHOD(device_attach, lxtphy_attach),
92 DEVMETHOD(device_detach, mii_phy_detach),
93 DEVMETHOD(device_shutdown, bus_generic_shutdown),
97 static devclass_t lxtphy_devclass;
99 static driver_t lxtphy_driver = {
102 sizeof(struct mii_softc)
105 DRIVER_MODULE(lxtphy, miibus, lxtphy_driver, lxtphy_devclass, 0, 0);
107 static int lxtphy_service(struct mii_softc *, struct mii_data *, int);
108 static void lxtphy_status(struct mii_softc *);
109 static void lxtphy_reset(struct mii_softc *);
110 static void lxtphy_set_tp(struct mii_softc *);
111 static void lxtphy_set_fx(struct mii_softc *);
113 static const struct mii_phydesc lxtphys[] = {
114 MII_PHY_DESC(xxLEVEL1, LXT970),
118 static const struct mii_phy_funcs lxtphy_funcs = {
125 lxtphy_probe(device_t dev)
128 return (mii_phy_dev_probe(dev, lxtphys, BUS_PROBE_DEFAULT));
132 lxtphy_attach(device_t dev)
134 struct mii_softc *sc;
136 sc = device_get_softc(dev);
138 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &lxtphy_funcs, 0);
142 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
143 device_printf(dev, " ");
145 #define ADD(m, c) ifmedia_add(&sc->mii_pdata->mii_media, (m), (c), NULL)
146 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst),
148 printf("100baseFX, ");
149 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst),
150 MII_MEDIA_100_TX_FDX);
151 printf("100baseFX-FDX, ");
154 mii_phy_add_media(sc);
157 MIIBUS_MEDIAINIT(sc->mii_dev);
162 lxtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
164 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
172 * If the interface is not up, don't do anything.
174 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
177 if (IFM_SUBTYPE(ife->ifm_media) == IFM_100_FX)
182 mii_phy_setmedia(sc);
186 if (mii_phy_tick(sc) == EJUSTRETURN)
191 /* Update the media status. */
194 /* Callback if something changed. */
195 mii_phy_update(sc, cmd);
200 lxtphy_status(struct mii_softc *sc)
202 struct mii_data *mii = sc->mii_pdata;
203 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
206 mii->mii_media_status = IFM_AVALID;
207 mii->mii_media_active = IFM_ETHER;
210 * Get link status from the CSR; we need to read the CSR
211 * for media type anyhow, and the link status in the CSR
212 * doens't latch, so fewer register reads are required.
214 csr = PHY_READ(sc, MII_LXTPHY_CSR);
216 mii->mii_media_status |= IFM_ACTIVE;
218 bmcr = PHY_READ(sc, MII_BMCR);
219 if (bmcr & BMCR_ISO) {
220 mii->mii_media_active |= IFM_NONE;
221 mii->mii_media_status = 0;
225 if (bmcr & BMCR_LOOP)
226 mii->mii_media_active |= IFM_LOOP;
228 if (bmcr & BMCR_AUTOEN) {
229 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
230 if ((bmsr & BMSR_ACOMP) == 0) {
231 /* Erg, still trying, I guess... */
232 mii->mii_media_active |= IFM_NONE;
236 mii->mii_media_active |= IFM_100_TX;
238 mii->mii_media_active |= IFM_10_T;
239 if (csr & CSR_DUPLEX)
240 mii->mii_media_active |=
241 IFM_FDX | mii_phy_flowstatus(sc);
243 mii->mii_media_active |= IFM_HDX;
245 mii->mii_media_active = ife->ifm_media;
249 lxtphy_reset(struct mii_softc *sc)
253 PHY_WRITE(sc, MII_LXTPHY_IER,
254 PHY_READ(sc, MII_LXTPHY_IER) & ~IER_INTEN);
258 lxtphy_set_tp(struct mii_softc *sc)
262 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
263 cfg &= ~CONFIG_100BASEFX;
264 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);
268 lxtphy_set_fx(struct mii_softc *sc)
272 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
273 cfg |= CONFIG_100BASEFX;
274 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);