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.
41 #include <sys/cdefs.h>
42 __FBSDID("$FreeBSD$");
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/cdefs.h>
79 __FBSDID("$FreeBSD$");
81 #include <sys/param.h>
82 #include <sys/systm.h>
83 #include <sys/kernel.h>
84 #include <sys/socket.h>
85 #include <sys/errno.h>
86 #include <sys/module.h>
90 #include <net/if_media.h>
92 #include <dev/mii/mii.h>
93 #include <dev/mii/miivar.h>
96 #include <dev/mii/lxtphyreg.h>
98 #include "miibus_if.h"
100 static int lxtphy_probe(device_t);
101 static int lxtphy_attach(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, mii_phy_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(struct mii_softc *, struct mii_data *, int);
123 static void lxtphy_status(struct mii_softc *);
124 static void lxtphy_set_tp(struct mii_softc *);
125 static void lxtphy_set_fx(struct mii_softc *);
131 struct mii_attach_args *ma;
133 ma = device_get_ivars(dev);
135 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxLEVEL1 &&
136 MII_MODEL(ma->mii_id2) == MII_MODEL_xxLEVEL1_LXT970) {
137 device_set_desc(dev, MII_STR_xxLEVEL1_LXT970);
148 struct mii_softc *sc;
149 struct mii_attach_args *ma;
150 struct mii_data *mii;
152 sc = device_get_softc(dev);
153 ma = device_get_ivars(dev);
154 sc->mii_dev = device_get_parent(dev);
155 mii = device_get_softc(sc->mii_dev);
156 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
158 sc->mii_inst = mii->mii_instance;
159 sc->mii_phy = ma->mii_phyno;
160 sc->mii_service = lxtphy_service;
162 sc->mii_flags |= MIIF_NOISOLATE;
168 sc->mii_capabilities =
169 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
170 device_printf(dev, " ");
172 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
173 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
175 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst),
177 printf("100baseFX, ");
178 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst),
180 printf("100baseFX-FDX, ");
186 MIIBUS_MEDIAINIT(sc->mii_dev);
191 lxtphy_service(sc, mii, cmd)
192 struct mii_softc *sc;
193 struct mii_data *mii;
196 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
202 * If we're not polling our PHY instance, just return.
204 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
210 * If the media indicates a different PHY instance,
213 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
214 reg = PHY_READ(sc, MII_BMCR);
215 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
220 * If the interface is not up, don't do anything.
222 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
225 switch (IFM_SUBTYPE(ife->ifm_media)) {
228 * If we're already in auto mode, just return.
230 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
235 (void) mii_phy_auto(sc);
239 * XXX Not supported as a manual setting right now.
245 /* XXX: fall though intentional ?? */
248 * BMCR data is stored in the ifmedia entry.
250 PHY_WRITE(sc, MII_ANAR,
251 mii_anar(ife->ifm_media));
252 PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
258 * If we're not currently selected, just return.
260 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
262 if (mii_phy_tick(sc) == EJUSTRETURN)
267 /* Update the media status. */
270 /* Callback if something changed. */
271 mii_phy_update(sc, cmd);
277 struct mii_softc *sc;
279 struct mii_data *mii = sc->mii_pdata;
280 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
283 mii->mii_media_status = IFM_AVALID;
284 mii->mii_media_active = IFM_ETHER;
287 * Get link status from the CSR; we need to read the CSR
288 * for media type anyhow, and the link status in the CSR
289 * doens't latch, so fewer register reads are required.
291 csr = PHY_READ(sc, MII_LXTPHY_CSR);
293 mii->mii_media_status |= IFM_ACTIVE;
295 bmcr = PHY_READ(sc, MII_BMCR);
296 if (bmcr & BMCR_ISO) {
297 mii->mii_media_active |= IFM_NONE;
298 mii->mii_media_status = 0;
302 if (bmcr & BMCR_LOOP)
303 mii->mii_media_active |= IFM_LOOP;
305 if (bmcr & BMCR_AUTOEN) {
306 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
307 if ((bmsr & BMSR_ACOMP) == 0) {
308 /* Erg, still trying, I guess... */
309 mii->mii_media_active |= IFM_NONE;
313 mii->mii_media_active |= IFM_100_TX;
315 mii->mii_media_active |= IFM_10_T;
316 if (csr & CSR_DUPLEX)
317 mii->mii_media_active |= IFM_FDX;
319 mii->mii_media_active = ife->ifm_media;
324 struct mii_softc *sc;
328 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
329 cfg &= ~CONFIG_100BASEFX;
330 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);
335 struct mii_softc *sc;
339 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
340 cfg |= CONFIG_100BASEFX;
341 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);