1 /* $NetBSD: gentbi.c,v 1.15 2006/03/29 07:05:24 thorpej Exp $ */
4 * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
41 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
43 * Redistribution and use in source and binary forms, with or without
44 * modification, are permitted provided that the following conditions
46 * 1. Redistributions of source code must retain the above copyright
47 * notice, this list of conditions and the following disclaimer.
48 * 2. Redistributions in binary form must reproduce the above copyright
49 * notice, this list of conditions and the following disclaimer in the
50 * documentation and/or other materials provided with the distribution.
51 * 3. All advertising materials mentioning features or use of this software
52 * must display the following acknowledgement:
53 * This product includes software developed by Manuel Bouyer.
54 * 4. The name of the author may not be used to endorse or promote products
55 * derived from this software without specific prior written permission.
57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
70 * Driver for generic ten-bit (1000BASE-SX) interfaces, built in to
71 * many Gigabit Ethernet chips.
73 * All we have to do here is correctly report speed and duplex.
76 #include <sys/cdefs.h>
77 __FBSDID("$FreeBSD$");
80 * Driver for generic unknown ten-bit interfaces(1000BASE-{LX,SX}
84 #include <sys/param.h>
85 #include <sys/systm.h>
86 #include <sys/kernel.h>
87 #include <sys/module.h>
88 #include <sys/socket.h>
89 #include <sys/errno.h>
93 #include <net/if_media.h>
95 #include <dev/mii/mii.h>
96 #include <dev/mii/miivar.h>
99 #include "miibus_if.h"
101 static int gentbi_probe(device_t);
102 static int gentbi_attach(device_t);
104 static device_method_t gentbi_methods[] = {
105 /* device interface */
106 DEVMETHOD(device_probe, gentbi_probe),
107 DEVMETHOD(device_attach, gentbi_attach),
108 DEVMETHOD(device_detach, mii_phy_detach),
109 DEVMETHOD(device_shutdown, bus_generic_shutdown),
113 static devclass_t gentbi_devclass;
115 static driver_t gentbi_driver = {
118 sizeof(struct mii_softc)
121 DRIVER_MODULE(gentbi, miibus, gentbi_driver, gentbi_devclass, 0, 0);
123 static int gentbi_service(struct mii_softc *, struct mii_data *, int);
124 static void gentbi_status(struct mii_softc *);
127 gentbi_probe(device_t dev)
130 struct mii_attach_args *ma;
133 parent = device_get_parent(dev);
134 ma = device_get_ivars(dev);
137 * We match as a generic TBI if:
139 * - There is no media in the BMSR.
140 * - EXTSR has only 1000X.
142 bmsr = MIIBUS_READREG(parent, ma->mii_phyno, MII_BMSR);
143 if ((bmsr & BMSR_EXTSTAT) == 0 || (bmsr & BMSR_MEDIAMASK) != 0)
146 extsr = MIIBUS_READREG(parent, ma->mii_phyno, MII_EXTSR);
147 if (extsr & (EXTSR_1000TFDX|EXTSR_1000THDX))
150 if (extsr & (EXTSR_1000XFDX|EXTSR_1000XHDX)) {
152 * We think this is a generic TBI. Return a match
153 * priority higher than ukphy, but lower than what
154 * specific drivers will return.
156 device_set_desc(dev, "Generic ten-bit interface");
157 return (BUS_PROBE_LOW_PRIORITY);
164 gentbi_attach(device_t dev)
166 struct mii_softc *sc;
167 struct mii_attach_args *ma;
168 struct mii_data *mii;
170 sc = device_get_softc(dev);
171 ma = device_get_ivars(dev);
172 sc->mii_dev = device_get_parent(dev);
173 mii = device_get_softc(sc->mii_dev);
174 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
177 device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n",
178 MII_OUI(ma->mii_id1, ma->mii_id2),
179 MII_MODEL(ma->mii_id2), MII_REV(ma->mii_id2));
181 sc->mii_inst = mii->mii_instance;
182 sc->mii_phy = ma->mii_phyno;
183 sc->mii_service = gentbi_service;
191 * Mask out all media in the BMSR. We only are really interested
194 sc->mii_capabilities =
195 PHY_READ(sc, MII_BMSR) & ma->mii_capmask & ~BMSR_MEDIAMASK;
196 if (sc->mii_capabilities & BMSR_EXTSTAT)
197 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
199 device_printf(dev, " ");
200 mii_phy_add_media(sc);
203 MIIBUS_MEDIAINIT(sc->mii_dev);
208 gentbi_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
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 mii_phy_setmedia(sc);
244 * If we're not currently selected, just return.
246 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
249 if (mii_phy_tick(sc) == EJUSTRETURN)
254 /* Update the media status. */
257 /* Callback if something changed. */
258 mii_phy_update(sc, cmd);
263 gentbi_status(struct mii_softc *sc)
265 struct mii_data *mii = sc->mii_pdata;
266 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
267 int bmsr, bmcr, anlpar;
269 mii->mii_media_status = IFM_AVALID;
270 mii->mii_media_active = IFM_ETHER;
272 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
274 if (bmsr & BMSR_LINK)
275 mii->mii_media_status |= IFM_ACTIVE;
277 bmcr = PHY_READ(sc, MII_BMCR);
278 if (bmcr & BMCR_ISO) {
279 mii->mii_media_active |= IFM_NONE;
280 mii->mii_media_status = 0;
284 if (bmcr & BMCR_LOOP)
285 mii->mii_media_active |= IFM_LOOP;
287 if (bmcr & BMCR_AUTOEN) {
289 * The media status bits are only valid if autonegotiation
290 * has completed (or it's disabled).
292 if ((bmsr & BMSR_ACOMP) == 0) {
293 /* Erg, still trying, I guess... */
294 mii->mii_media_active |= IFM_NONE;
299 * The media is always 1000baseSX. Check the ANLPAR to
300 * see if we're doing full-duplex.
302 mii->mii_media_active |= IFM_1000_SX;
304 anlpar = PHY_READ(sc, MII_ANLPAR);
305 if ((sc->mii_extcapabilities & EXTSR_1000XFDX) != 0 &&
306 (anlpar & ANLPAR_X_FD) != 0)
307 mii->mii_media_active |= IFM_FDX;
309 mii->mii_media_active = ife->ifm_media;