3 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
32 * $FreeBSD: src/sys/dev/mii/xmphy.c,v 1.1.2.5 2002/11/08 21:53:49 semenu Exp $
36 * driver for the XaQti XMAC II's internal PHY. This is sort of
37 * like a 10/100 PHY, except the only thing we're really autoselecting
38 * here is full/half duplex. Speed is always 1000mbps.
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/kernel.h>
44 #include <sys/socket.h>
47 #include <machine/clock.h>
50 #include <net/if_media.h>
52 #include <dev/mii/mii.h>
53 #include <dev/mii/miivar.h>
54 #include <dev/mii/miidevs.h>
56 #include <dev/mii/xmphyreg.h>
58 #include "miibus_if.h"
61 static const char rcsid[] =
62 "$FreeBSD: src/sys/dev/mii/xmphy.c,v 1.1.2.5 2002/11/08 21:53:49 semenu Exp $";
65 static int xmphy_probe __P((device_t));
66 static int xmphy_attach __P((device_t));
67 static int xmphy_detach __P((device_t));
69 static device_method_t xmphy_methods[] = {
70 /* device interface */
71 DEVMETHOD(device_probe, xmphy_probe),
72 DEVMETHOD(device_attach, xmphy_attach),
73 DEVMETHOD(device_detach, xmphy_detach),
74 DEVMETHOD(device_shutdown, bus_generic_shutdown),
78 static devclass_t xmphy_devclass;
80 static driver_t xmphy_driver = {
83 sizeof(struct mii_softc)
86 DRIVER_MODULE(xmphy, miibus, xmphy_driver, xmphy_devclass, 0, 0);
88 int xmphy_service __P((struct mii_softc *, struct mii_data *, int));
89 void xmphy_status __P((struct mii_softc *));
91 static int xmphy_mii_phy_auto __P((struct mii_softc *, int));
92 extern void mii_phy_auto_timeout __P((void *));
94 static int xmphy_probe(dev)
97 struct mii_attach_args *ma;
99 ma = device_get_ivars(dev);
101 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxXAQTI &&
102 MII_MODEL(ma->mii_id2) == MII_MODEL_XAQTI_XMACII) {
103 device_set_desc(dev, MII_STR_XAQTI_XMACII);
107 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_JATO &&
108 MII_MODEL(ma->mii_id2) == MII_MODEL_JATO_BASEX) {
109 device_set_desc(dev, MII_STR_JATO_BASEX);
116 static int xmphy_attach(dev)
119 struct mii_softc *sc;
120 struct mii_attach_args *ma;
121 struct mii_data *mii;
122 const char *sep = "";
124 sc = device_get_softc(dev);
125 ma = device_get_ivars(dev);
126 sc->mii_dev = device_get_parent(dev);
127 mii = device_get_softc(sc->mii_dev);
128 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
130 sc->mii_inst = mii->mii_instance;
131 sc->mii_phy = ma->mii_phyno;
132 sc->mii_service = xmphy_service;
135 sc->mii_flags |= MIIF_NOISOLATE;
138 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
139 #define PRINT(s) printf("%s%s", sep, s); sep = ", "
141 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
144 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
145 BMCR_LOOP|BMCR_S100);
150 device_printf(dev, " ");
151 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, 0, sc->mii_inst),
154 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, sc->mii_inst), 0);
155 PRINT("1000baseSX-FDX");
156 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0);
163 MIIBUS_MEDIAINIT(sc->mii_dev);
167 static int xmphy_detach(dev)
170 struct mii_softc *sc;
171 struct mii_data *mii;
173 sc = device_get_softc(dev);
174 mii = device_get_softc(device_get_parent(dev));
175 if (sc->mii_flags & MIIF_DOINGAUTO)
176 untimeout(mii_phy_auto_timeout, sc, sc->mii_auto_ch);
178 LIST_REMOVE(sc, mii_list);
183 xmphy_service(sc, mii, cmd)
184 struct mii_softc *sc;
185 struct mii_data *mii;
188 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
194 * If we're not polling our PHY instance, just return.
196 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
202 * If the media indicates a different PHY instance,
205 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
206 reg = PHY_READ(sc, MII_BMCR);
207 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
212 * If the interface is not up, don't do anything.
214 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
217 switch (IFM_SUBTYPE(ife->ifm_media)) {
221 * If we're already in auto mode, just return.
223 if (PHY_READ(sc, XMPHY_MII_BMCR) & XMPHY_BMCR_AUTOEN)
226 (void) xmphy_mii_phy_auto(sc, 1);
230 if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
231 PHY_WRITE(sc, XMPHY_MII_ANAR, XMPHY_ANAR_FDX);
232 PHY_WRITE(sc, XMPHY_MII_BMCR, XMPHY_BMCR_FDX);
234 PHY_WRITE(sc, XMPHY_MII_ANAR, XMPHY_ANAR_HDX);
235 PHY_WRITE(sc, XMPHY_MII_BMCR, 0);
248 * If we're not currently selected, just return.
250 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
254 * Only used for autonegotiation.
256 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
260 * Is the interface even up?
262 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
266 * Only retry autonegotiation every 5 seconds.
268 if (++sc->mii_ticks != 5)
274 * Check to see if we have link. If we do, we don't
275 * need to restart the autonegotiation process. Read
276 * the BMSR twice in case it's latched.
278 reg = PHY_READ(sc, XMPHY_MII_BMSR) |
279 PHY_READ(sc, XMPHY_MII_BMSR);
280 if (reg & XMPHY_BMSR_LINK)
284 if (xmphy_mii_phy_auto(sc, 0) == EJUSTRETURN)
289 /* Update the media status. */
292 /* Callback if something changed. */
293 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
294 MIIBUS_STATCHG(sc->mii_dev);
295 sc->mii_active = mii->mii_media_active;
302 struct mii_softc *sc;
304 struct mii_data *mii = sc->mii_pdata;
305 int bmsr, bmcr, anlpar;
307 mii->mii_media_status = IFM_AVALID;
308 mii->mii_media_active = IFM_ETHER;
310 bmsr = PHY_READ(sc, XMPHY_MII_BMSR) |
311 PHY_READ(sc, XMPHY_MII_BMSR);
312 if (bmsr & XMPHY_BMSR_LINK)
313 mii->mii_media_status |= IFM_ACTIVE;
315 /* Do dummy read of extended status register. */
316 bmcr = PHY_READ(sc, XMPHY_MII_EXTSTS);
318 bmcr = PHY_READ(sc, XMPHY_MII_BMCR);
320 if (bmcr & XMPHY_BMCR_LOOP)
321 mii->mii_media_active |= IFM_LOOP;
324 if (bmcr & XMPHY_BMCR_AUTOEN) {
325 if ((bmsr & XMPHY_BMSR_ACOMP) == 0) {
326 if (bmsr & XMPHY_BMSR_LINK) {
327 mii->mii_media_active |= IFM_1000_SX|IFM_HDX;
330 /* Erg, still trying, I guess... */
331 mii->mii_media_active |= IFM_NONE;
335 mii->mii_media_active |= IFM_1000_SX;
336 anlpar = PHY_READ(sc, XMPHY_MII_ANAR) &
337 PHY_READ(sc, XMPHY_MII_ANLPAR);
338 if (anlpar & XMPHY_ANLPAR_FDX)
339 mii->mii_media_active |= IFM_FDX;
341 mii->mii_media_active |= IFM_HDX;
345 mii->mii_media_active |= IFM_1000_SX;
346 if (bmcr & XMPHY_BMCR_FDX)
347 mii->mii_media_active |= IFM_FDX;
349 mii->mii_media_active |= IFM_HDX;
356 xmphy_mii_phy_auto(mii, waitfor)
357 struct mii_softc *mii;
360 int bmsr, anar = 0, i;
362 if ((mii->mii_flags & MIIF_DOINGAUTO) == 0) {
363 anar = PHY_READ(mii, XMPHY_MII_ANAR);
364 anar |= XMPHY_ANAR_FDX|XMPHY_ANAR_HDX;
365 PHY_WRITE(mii, XMPHY_MII_ANAR, anar);
367 PHY_WRITE(mii, XMPHY_MII_BMCR,
368 XMPHY_BMCR_AUTOEN | XMPHY_BMCR_STARTNEG);
372 /* Wait 500ms for it to complete. */
373 for (i = 0; i < 500; i++) {
374 if ((bmsr = PHY_READ(mii, XMPHY_MII_BMSR)) &
379 if ((bmsr & BMSR_ACOMP) == 0)
380 printf("%s: autonegotiation failed to complete\n",
381 mii->mii_dev.dv_xname);
386 * Don't need to worry about clearing MIIF_DOINGAUTO.
387 * If that's set, a timeout is pending, and it will
394 * Just let it finish asynchronously. This is for the benefit of
395 * the tick handler driving autonegotiation. Don't want 500ms
396 * delays all the time while the system is running!
398 if ((mii->mii_flags & MIIF_DOINGAUTO) == 0) {
399 mii->mii_flags |= MIIF_DOINGAUTO;
400 mii->mii_auto_ch = timeout(mii_phy_auto_timeout, mii, hz >> 1);
402 return (EJUSTRETURN);