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 */
3
4/*-
5 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
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.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
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.
27 *
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.
39 */
40
41/*
42 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
43 *
44 * Redistribution and use in source and binary forms, with or without
45 * modification, are permitted provided that the following conditions
46 * are met:
47 * 1. Redistributions of source code must retain the above copyright
48 * notice, this list of conditions and the following disclaimer.
49 * 2. Redistributions in binary form must reproduce the above copyright
50 * notice, this list of conditions and the following disclaimer in the
51 * documentation and/or other materials provided with the distribution.
52 * 3. All advertising materials mentioning features or use of this software
53 * must display the following acknowledgement:
54 * This product includes software developed by Manuel Bouyer.
55 * 4. The name of the author may not be used to endorse or promote products
56 * derived from this software without specific prior written permission.
57 *
58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
63 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
64 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
65 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
66 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
67 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
68 */
69
70/*
71 * driver for Level One's LXT-970 ethernet 10/100 PHY
72 * datasheet from www.level1.com
73 */
74
75#include <sys/param.h>
76#include <sys/systm.h>
77#include <sys/kernel.h>
78#include <sys/socket.h>
79#include <sys/errno.h>
80#include <sys/module.h>
81#include <sys/bus.h>
82
83#include <net/if.h>
84#include <net/if_media.h>
85
86#include <dev/mii/mii.h>
87#include <dev/mii/miivar.h>
88#include <dev/mii/miidevs.h>
89
90#include <dev/mii/lxtphyreg.h>
91
92#include "miibus_if.h"
93
94#if !defined(lint)
95static const char rcsid[] =
| 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 */
3
4/*-
5 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
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.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
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.
27 *
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.
39 */
40
41/*
42 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
43 *
44 * Redistribution and use in source and binary forms, with or without
45 * modification, are permitted provided that the following conditions
46 * are met:
47 * 1. Redistributions of source code must retain the above copyright
48 * notice, this list of conditions and the following disclaimer.
49 * 2. Redistributions in binary form must reproduce the above copyright
50 * notice, this list of conditions and the following disclaimer in the
51 * documentation and/or other materials provided with the distribution.
52 * 3. All advertising materials mentioning features or use of this software
53 * must display the following acknowledgement:
54 * This product includes software developed by Manuel Bouyer.
55 * 4. The name of the author may not be used to endorse or promote products
56 * derived from this software without specific prior written permission.
57 *
58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
63 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
64 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
65 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
66 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
67 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
68 */
69
70/*
71 * driver for Level One's LXT-970 ethernet 10/100 PHY
72 * datasheet from www.level1.com
73 */
74
75#include <sys/param.h>
76#include <sys/systm.h>
77#include <sys/kernel.h>
78#include <sys/socket.h>
79#include <sys/errno.h>
80#include <sys/module.h>
81#include <sys/bus.h>
82
83#include <net/if.h>
84#include <net/if_media.h>
85
86#include <dev/mii/mii.h>
87#include <dev/mii/miivar.h>
88#include <dev/mii/miidevs.h>
89
90#include <dev/mii/lxtphyreg.h>
91
92#include "miibus_if.h"
93
94#if !defined(lint)
95static const char rcsid[] =
|
96 "$FreeBSD: head/sys/dev/mii/lxtphy.c 95667 2002-04-28 19:25:07Z phk $";
| 96 "$FreeBSD: head/sys/dev/mii/lxtphy.c 95722 2002-04-29 13:07:38Z phk $";
|
97#endif
98
99static int lxtphy_probe (device_t);
100static int lxtphy_attach (device_t);
| 97#endif
98
99static int lxtphy_probe (device_t);
100static int lxtphy_attach (device_t);
|
101static int lxtphy_detach (device_t);
| |
102
103static device_method_t lxtphy_methods[] = {
104 /* device interface */
105 DEVMETHOD(device_probe, lxtphy_probe),
106 DEVMETHOD(device_attach, lxtphy_attach),
| 101
102static device_method_t lxtphy_methods[] = {
103 /* device interface */
104 DEVMETHOD(device_probe, lxtphy_probe),
105 DEVMETHOD(device_attach, lxtphy_attach),
|
107 DEVMETHOD(device_detach, lxtphy_detach),
| 106 DEVMETHOD(device_detach, mii_phy_detach),
|
108 DEVMETHOD(device_shutdown, bus_generic_shutdown),
109 { 0, 0 }
110};
111
112static devclass_t lxtphy_devclass;
113
114static driver_t lxtphy_driver = {
115 "lxtphy",
116 lxtphy_methods,
117 sizeof(struct mii_softc)
118};
119
120DRIVER_MODULE(lxtphy, miibus, lxtphy_driver, lxtphy_devclass, 0, 0);
121
122static int lxtphy_service(struct mii_softc *, struct mii_data *, int);
123static void lxtphy_status(struct mii_softc *);
124static void lxtphy_set_tp(struct mii_softc *);
125static void lxtphy_set_fx(struct mii_softc *);
126
127static int lxtphy_probe(dev)
128 device_t dev;
129{
130 struct mii_attach_args *ma;
131
132 ma = device_get_ivars(dev);
133
134 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxLEVEL1 &&
135 MII_MODEL(ma->mii_id2) == MII_MODEL_xxLEVEL1_LXT970) {
136 device_set_desc(dev, MII_STR_xxLEVEL1_LXT970);
137 } else
138 return (ENXIO);
139
140 return (0);
141}
142
143static int lxtphy_attach(dev)
144 device_t dev;
145{
146 struct mii_softc *sc;
147 struct mii_attach_args *ma;
148 struct mii_data *mii;
149
150 sc = device_get_softc(dev);
151 ma = device_get_ivars(dev);
152 sc->mii_dev = device_get_parent(dev);
153 mii = device_get_softc(sc->mii_dev);
154 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
155
156 sc->mii_inst = mii->mii_instance;
157 sc->mii_phy = ma->mii_phyno;
158 sc->mii_service = lxtphy_service;
159 sc->mii_pdata = mii;
160 sc->mii_flags |= MIIF_NOISOLATE;
161
162 mii_phy_reset(sc);
163
164 mii->mii_instance++;
165
166 sc->mii_capabilities =
167 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
168 device_printf(dev, " ");
169
170#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
171 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
172 BMCR_ISO);
173 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst),
174 BMCR_S100);
175 printf("100baseFX, ");
176 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst),
177 BMCR_S100|BMCR_FDX);
178 printf("100baseFX-FDX, ");
179#undef ADD
180
181 mii_add_media(sc);
182 printf("\n");
183
184 MIIBUS_MEDIAINIT(sc->mii_dev);
185 return(0);
186}
187
| 107 DEVMETHOD(device_shutdown, bus_generic_shutdown),
108 { 0, 0 }
109};
110
111static devclass_t lxtphy_devclass;
112
113static driver_t lxtphy_driver = {
114 "lxtphy",
115 lxtphy_methods,
116 sizeof(struct mii_softc)
117};
118
119DRIVER_MODULE(lxtphy, miibus, lxtphy_driver, lxtphy_devclass, 0, 0);
120
121static int lxtphy_service(struct mii_softc *, struct mii_data *, int);
122static void lxtphy_status(struct mii_softc *);
123static void lxtphy_set_tp(struct mii_softc *);
124static void lxtphy_set_fx(struct mii_softc *);
125
126static int lxtphy_probe(dev)
127 device_t dev;
128{
129 struct mii_attach_args *ma;
130
131 ma = device_get_ivars(dev);
132
133 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxLEVEL1 &&
134 MII_MODEL(ma->mii_id2) == MII_MODEL_xxLEVEL1_LXT970) {
135 device_set_desc(dev, MII_STR_xxLEVEL1_LXT970);
136 } else
137 return (ENXIO);
138
139 return (0);
140}
141
142static int lxtphy_attach(dev)
143 device_t dev;
144{
145 struct mii_softc *sc;
146 struct mii_attach_args *ma;
147 struct mii_data *mii;
148
149 sc = device_get_softc(dev);
150 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);
154
155 sc->mii_inst = mii->mii_instance;
156 sc->mii_phy = ma->mii_phyno;
157 sc->mii_service = lxtphy_service;
158 sc->mii_pdata = mii;
159 sc->mii_flags |= MIIF_NOISOLATE;
160
161 mii_phy_reset(sc);
162
163 mii->mii_instance++;
164
165 sc->mii_capabilities =
166 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
167 device_printf(dev, " ");
168
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),
171 BMCR_ISO);
172 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst),
173 BMCR_S100);
174 printf("100baseFX, ");
175 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst),
176 BMCR_S100|BMCR_FDX);
177 printf("100baseFX-FDX, ");
178#undef ADD
179
180 mii_add_media(sc);
181 printf("\n");
182
183 MIIBUS_MEDIAINIT(sc->mii_dev);
184 return(0);
185}
186
|
188
189static int lxtphy_detach(dev)
190 device_t dev;
191{
192 struct mii_softc *sc;
193 struct mii_data *mii;
194
195 sc = device_get_softc(dev);
196 mii = device_get_softc(device_get_parent(dev));
197 sc->mii_dev = NULL;
198 LIST_REMOVE(sc, mii_list);
199
200 return(0);
201}
202
| |
203static int
204lxtphy_service(sc, mii, cmd)
205 struct mii_softc *sc;
206 struct mii_data *mii;
207 int cmd;
208{
209 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
210 int reg;
211
212 switch (cmd) {
213 case MII_POLLSTAT:
214 /*
215 * If we're not polling our PHY instance, just return.
216 */
217 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
218 return (0);
219 break;
220
221 case MII_MEDIACHG:
222 /*
223 * If the media indicates a different PHY instance,
224 * isolate ourselves.
225 */
226 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
227 reg = PHY_READ(sc, MII_BMCR);
228 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
229 return (0);
230 }
231
232 /*
233 * If the interface is not up, don't do anything.
234 */
235 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
236 break;
237
238 switch (IFM_SUBTYPE(ife->ifm_media)) {
239 case IFM_AUTO:
240 /*
241 * If we're already in auto mode, just return.
242 */
243 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
244 return (0);
245
246 lxtphy_set_tp(sc);
247
248 (void) mii_phy_auto(sc, 1);
249 break;
250 case IFM_100_T4:
251 /*
252 * XXX Not supported as a manual setting right now.
253 */
254 return (EINVAL);
255
256 case IFM_100_FX:
257 lxtphy_set_fx(sc);
258
259 default:
260 /*
261 * BMCR data is stored in the ifmedia entry.
262 */
263 PHY_WRITE(sc, MII_ANAR,
264 mii_anar(ife->ifm_media));
265 PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
266 }
267 break;
268
269 case MII_TICK:
270 /*
271 * If we're not currently selected, just return.
272 */
273 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
274 return (0);
275 if (mii_phy_tick(sc) == EJUSTRETURN)
276 return (0);
277 break;
278 }
279
280 /* Update the media status. */
281 lxtphy_status(sc);
282
283 /* Callback if something changed. */
284 mii_phy_update(sc, cmd);
285 return (0);
286}
287
288static void
289lxtphy_status(sc)
290 struct mii_softc *sc;
291{
292 struct mii_data *mii = sc->mii_pdata;
293 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
294 int bmcr, bmsr, csr;
295
296 mii->mii_media_status = IFM_AVALID;
297 mii->mii_media_active = IFM_ETHER;
298
299 /*
300 * Get link status from the CSR; we need to read the CSR
301 * for media type anyhow, and the link status in the CSR
302 * doens't latch, so fewer register reads are required.
303 */
304 csr = PHY_READ(sc, MII_LXTPHY_CSR);
305 if (csr & CSR_LINK)
306 mii->mii_media_status |= IFM_ACTIVE;
307
308 bmcr = PHY_READ(sc, MII_BMCR);
309 if (bmcr & BMCR_ISO) {
310 mii->mii_media_active |= IFM_NONE;
311 mii->mii_media_status = 0;
312 return;
313 }
314
315 if (bmcr & BMCR_LOOP)
316 mii->mii_media_active |= IFM_LOOP;
317
318 if (bmcr & BMCR_AUTOEN) {
319 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
320 if ((bmsr & BMSR_ACOMP) == 0) {
321 /* Erg, still trying, I guess... */
322 mii->mii_media_active |= IFM_NONE;
323 return;
324 }
325 if (csr & CSR_SPEED)
326 mii->mii_media_active |= IFM_100_TX;
327 else
328 mii->mii_media_active |= IFM_10_T;
329 if (csr & CSR_DUPLEX)
330 mii->mii_media_active |= IFM_FDX;
331 } else
332 mii->mii_media_active = ife->ifm_media;
333}
334
335static void
336lxtphy_set_tp(sc)
337 struct mii_softc *sc;
338{
339 int cfg;
340
341 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
342 cfg &= ~CONFIG_100BASEFX;
343 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);
344}
345
346static void
347lxtphy_set_fx(sc)
348 struct mii_softc *sc;
349{
350 int cfg;
351
352 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
353 cfg |= CONFIG_100BASEFX;
354 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);
355}
356
| 187static int
188lxtphy_service(sc, mii, cmd)
189 struct mii_softc *sc;
190 struct mii_data *mii;
191 int cmd;
192{
193 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
194 int reg;
195
196 switch (cmd) {
197 case MII_POLLSTAT:
198 /*
199 * If we're not polling our PHY instance, just return.
200 */
201 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
202 return (0);
203 break;
204
205 case MII_MEDIACHG:
206 /*
207 * If the media indicates a different PHY instance,
208 * isolate ourselves.
209 */
210 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
211 reg = PHY_READ(sc, MII_BMCR);
212 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
213 return (0);
214 }
215
216 /*
217 * If the interface is not up, don't do anything.
218 */
219 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
220 break;
221
222 switch (IFM_SUBTYPE(ife->ifm_media)) {
223 case IFM_AUTO:
224 /*
225 * If we're already in auto mode, just return.
226 */
227 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
228 return (0);
229
230 lxtphy_set_tp(sc);
231
232 (void) mii_phy_auto(sc, 1);
233 break;
234 case IFM_100_T4:
235 /*
236 * XXX Not supported as a manual setting right now.
237 */
238 return (EINVAL);
239
240 case IFM_100_FX:
241 lxtphy_set_fx(sc);
242
243 default:
244 /*
245 * BMCR data is stored in the ifmedia entry.
246 */
247 PHY_WRITE(sc, MII_ANAR,
248 mii_anar(ife->ifm_media));
249 PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
250 }
251 break;
252
253 case MII_TICK:
254 /*
255 * If we're not currently selected, just return.
256 */
257 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
258 return (0);
259 if (mii_phy_tick(sc) == EJUSTRETURN)
260 return (0);
261 break;
262 }
263
264 /* Update the media status. */
265 lxtphy_status(sc);
266
267 /* Callback if something changed. */
268 mii_phy_update(sc, cmd);
269 return (0);
270}
271
272static void
273lxtphy_status(sc)
274 struct mii_softc *sc;
275{
276 struct mii_data *mii = sc->mii_pdata;
277 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
278 int bmcr, bmsr, csr;
279
280 mii->mii_media_status = IFM_AVALID;
281 mii->mii_media_active = IFM_ETHER;
282
283 /*
284 * Get link status from the CSR; we need to read the CSR
285 * for media type anyhow, and the link status in the CSR
286 * doens't latch, so fewer register reads are required.
287 */
288 csr = PHY_READ(sc, MII_LXTPHY_CSR);
289 if (csr & CSR_LINK)
290 mii->mii_media_status |= IFM_ACTIVE;
291
292 bmcr = PHY_READ(sc, MII_BMCR);
293 if (bmcr & BMCR_ISO) {
294 mii->mii_media_active |= IFM_NONE;
295 mii->mii_media_status = 0;
296 return;
297 }
298
299 if (bmcr & BMCR_LOOP)
300 mii->mii_media_active |= IFM_LOOP;
301
302 if (bmcr & BMCR_AUTOEN) {
303 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
304 if ((bmsr & BMSR_ACOMP) == 0) {
305 /* Erg, still trying, I guess... */
306 mii->mii_media_active |= IFM_NONE;
307 return;
308 }
309 if (csr & CSR_SPEED)
310 mii->mii_media_active |= IFM_100_TX;
311 else
312 mii->mii_media_active |= IFM_10_T;
313 if (csr & CSR_DUPLEX)
314 mii->mii_media_active |= IFM_FDX;
315 } else
316 mii->mii_media_active = ife->ifm_media;
317}
318
319static void
320lxtphy_set_tp(sc)
321 struct mii_softc *sc;
322{
323 int cfg;
324
325 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
326 cfg &= ~CONFIG_100BASEFX;
327 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);
328}
329
330static void
331lxtphy_set_fx(sc)
332 struct mii_softc *sc;
333{
334 int cfg;
335
336 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
337 cfg |= CONFIG_100BASEFX;
338 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);
339}
340
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