1/*
2 * Copyright (c) 2000
3 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
19 *
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.
31 *
|
32 * $FreeBSD: head/sys/dev/mii/brgphy.c 83029 2001-09-04 22:00:33Z wpaul $
|
| 32 * $FreeBSD: head/sys/dev/mii/brgphy.c 83597 2001-09-18 00:31:19Z wpaul $ |
33 */
34
35/*
36 * Driver for the Broadcom BCR5400 1000baseTX PHY. Speed is always
37 * 1000mbps; all we need to negotiate here is full or half duplex.
38 */
39
40#include <sys/param.h>
41#include <sys/systm.h>
42#include <sys/kernel.h>
43#include <sys/malloc.h>
44#include <sys/socket.h>
45#include <sys/bus.h>
46
47#include <machine/clock.h>
48
49#include <net/if.h>
50#include <net/if_media.h>
51
52#include <dev/mii/mii.h>
53#include <dev/mii/miivar.h>
54#include <dev/mii/miidevs.h>
55
56#include <dev/mii/brgphyreg.h>
57
58#include "miibus_if.h"
59
60#if !defined(lint)
61static const char rcsid[] =
|
62 "$FreeBSD: head/sys/dev/mii/brgphy.c 83029 2001-09-04 22:00:33Z wpaul $";
|
| 62 "$FreeBSD: head/sys/dev/mii/brgphy.c 83597 2001-09-18 00:31:19Z wpaul $"; |
63#endif
64
65static int brgphy_probe __P((device_t));
66static int brgphy_attach __P((device_t));
67static int brgphy_detach __P((device_t));
68
69static device_method_t brgphy_methods[] = {
70 /* device interface */
71 DEVMETHOD(device_probe, brgphy_probe),
72 DEVMETHOD(device_attach, brgphy_attach),
73 DEVMETHOD(device_detach, brgphy_detach),
74 DEVMETHOD(device_shutdown, bus_generic_shutdown),
75 { 0, 0 }
76};
77
78static devclass_t brgphy_devclass;
79
80static driver_t brgphy_driver = {
81 "brgphy",
82 brgphy_methods,
83 sizeof(struct mii_softc)
84};
85
86DRIVER_MODULE(brgphy, miibus, brgphy_driver, brgphy_devclass, 0, 0);
87
88int brgphy_service __P((struct mii_softc *, struct mii_data *, int));
89void brgphy_status __P((struct mii_softc *));
90
91static int brgphy_mii_phy_auto __P((struct mii_softc *, int));
92extern void mii_phy_auto_timeout __P((void *));
93
94static int brgphy_probe(dev)
95 device_t dev;
96{
97 struct mii_attach_args *ma;
98
99 ma = device_get_ivars(dev);
100
101 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
102 MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5400) {
103 device_set_desc(dev, MII_STR_xxBROADCOM_BCM5400);
104 return(0);
105 }
106
107 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
108 MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5401) {
109 device_set_desc(dev, MII_STR_xxBROADCOM_BCM5401);
110 return(0);
111 }
112
113 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
114 MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5411) {
115 device_set_desc(dev, MII_STR_xxBROADCOM_BCM5411);
116 return(0);
117 }
118
119 return(ENXIO);
120}
121
122static int brgphy_attach(dev)
123 device_t dev;
124{
125 struct mii_softc *sc;
126 struct mii_attach_args *ma;
127 struct mii_data *mii;
128 const char *sep = "";
129
130 sc = device_get_softc(dev);
131 ma = device_get_ivars(dev);
132 sc->mii_dev = device_get_parent(dev);
133 mii = device_get_softc(sc->mii_dev);
134 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
135
136 sc->mii_inst = mii->mii_instance;
137 sc->mii_phy = ma->mii_phyno;
138 sc->mii_service = brgphy_service;
139 sc->mii_pdata = mii;
140
141 sc->mii_flags |= MIIF_NOISOLATE;
142 mii->mii_instance++;
143
144#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
145#define PRINT(s) printf("%s%s", sep, s); sep = ", "
146
147 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
148 BMCR_ISO);
149#if 0
150 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
151 BMCR_LOOP|BMCR_S100);
152#endif
153
154 mii_phy_reset(sc);
155
156
157 sc->mii_capabilities =
158 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
159 device_printf(dev, " ");
160 if (sc->mii_capabilities & BMSR_MEDIAMASK)
161 mii_add_media(mii, (sc->mii_capabilities & ~BMSR_ANEG),
162 sc->mii_inst);
163 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_TX, 0, sc->mii_inst),
164 BRGPHY_BMCR_FDX);
165 PRINT(", 1000baseTX");
166 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_TX, IFM_FDX, sc->mii_inst), 0);
167 PRINT("1000baseTX-FDX");
168 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0);
169 PRINT("auto");
170
171 printf("\n");
172#undef ADD
173#undef PRINT
174
175 MIIBUS_MEDIAINIT(sc->mii_dev);
176 return(0);
177}
178
179static int brgphy_detach(dev)
180 device_t dev;
181{
182 struct mii_softc *sc;
183 struct mii_data *mii;
184
185 sc = device_get_softc(dev);
186 mii = device_get_softc(device_get_parent(dev));
187 if (sc->mii_flags & MIIF_DOINGAUTO)
188 untimeout(mii_phy_auto_timeout, sc, sc->mii_auto_ch);
189
190 sc->mii_dev = NULL;
191 LIST_REMOVE(sc, mii_list);
192
193 return(0);
194}
195int
196brgphy_service(sc, mii, cmd)
197 struct mii_softc *sc;
198 struct mii_data *mii;
199 int cmd;
200{
201 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
202 int reg, speed;
203
204 switch (cmd) {
205 case MII_POLLSTAT:
206 /*
207 * If we're not polling our PHY instance, just return.
208 */
209 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
210 return (0);
211 break;
212
213 case MII_MEDIACHG:
214 /*
215 * If the media indicates a different PHY instance,
216 * isolate ourselves.
217 */
218 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
219 reg = PHY_READ(sc, MII_BMCR);
220 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
221 return (0);
222 }
223
224 /*
225 * If the interface is not up, don't do anything.
226 */
227 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
228 break;
229
230 PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
231 BRGPHY_PHY_EXTCTL_HIGH_LA|BRGPHY_PHY_EXTCTL_EN_LTR);
232 PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
233 BRGPHY_AUXCTL_LONG_PKT|BRGPHY_AUXCTL_TX_TST);
234 PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);
235
236 switch (IFM_SUBTYPE(ife->ifm_media)) {
237 case IFM_AUTO:
238#ifdef foo
239 /*
240 * If we're already in auto mode, just return.
241 */
242 if (PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_AUTOEN)
243 return (0);
244#endif
245 (void) brgphy_mii_phy_auto(sc, 1);
246 break;
247 case IFM_1000_TX:
248 speed = BRGPHY_S1000;
249 goto setit;
250 case IFM_100_TX:
251 speed = BRGPHY_S100;
252 goto setit;
253 case IFM_10_T:
254 speed = BRGPHY_S10;
255setit:
256 if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
257 PHY_WRITE(sc, BRGPHY_MII_BMCR,
258 BRGPHY_BMCR_FDX|speed);
259 } else {
260 PHY_WRITE(sc, BRGPHY_MII_BMCR, speed);
261 }
262 PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
263
264 if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_TX)
265 break;
266
267 /*
268 * When settning the link manually, one side must
269 * be the master and the other the slave. However
270 * ifmedia doesn't give us a good way to specify
271 * this, so we fake it by using one of the LINK
272 * flags. If LINK0 is set, we program the PHY to
273 * be a master, otherwise it's a slave.
274 */
275 if ((mii->mii_ifp->if_flags & IFF_LINK0)) {
276 PHY_WRITE(sc, BRGPHY_MII_1000CTL,
277 BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC);
278 } else {
279 PHY_WRITE(sc, BRGPHY_MII_1000CTL,
280 BRGPHY_1000CTL_MSE);
281 }
282 break;
|
283#ifdef foo
284 case IFM_NONE:
285 PHY_WRITE(sc, MII_BMCR, BMCR_ISO|BMCR_PDOWN);
286 break;
287#endif |
288 case IFM_100_T4:
289 default:
290 return (EINVAL);
291 }
292 break;
293
294 case MII_TICK:
295 /*
296 * If we're not currently selected, just return.
297 */
298 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
299 return (0);
300
301 /*
302 * Only used for autonegotiation.
303 */
304 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
305 return (0);
306
307 /*
308 * Is the interface even up?
309 */
310 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
311 return (0);
312
313 /*
314 * Only retry autonegotiation every 5 seconds.
315 */
316 if (++sc->mii_ticks != 5)
317 return (0);
318
319 sc->mii_ticks = 0;
320
321 /*
322 * Check to see if we have link. If we do, we don't
323 * need to restart the autonegotiation process. Read
324 * the BMSR twice in case it's latched.
325 */
326 reg = PHY_READ(sc, BRGPHY_MII_AUXSTS);
327 if (reg & BRGPHY_AUXSTS_LINK)
328 break;
329
330 mii_phy_reset(sc);
331 if (brgphy_mii_phy_auto(sc, 0) == EJUSTRETURN)
332 return(0);
333 break;
334 }
335
336 /* Update the media status. */
337 brgphy_status(sc);
338
339 /* Callback if something changed. */
340 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
341 MIIBUS_STATCHG(sc->mii_dev);
342 sc->mii_active = mii->mii_media_active;
343 }
344 return (0);
345}
346
347void
348brgphy_status(sc)
349 struct mii_softc *sc;
350{
351 struct mii_data *mii = sc->mii_pdata;
352 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
353 int bmsr, bmcr;
354
355 mii->mii_media_status = IFM_AVALID;
356 mii->mii_media_active = IFM_ETHER;
357
358 bmsr = PHY_READ(sc, BRGPHY_MII_BMSR);
359 if (PHY_READ(sc, BRGPHY_MII_AUXSTS) & BRGPHY_AUXSTS_LINK)
360 mii->mii_media_status |= IFM_ACTIVE;
361
362 bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
363
364 if (bmcr & BRGPHY_BMCR_LOOP)
365 mii->mii_media_active |= IFM_LOOP;
366
367 if (bmcr & BRGPHY_BMCR_AUTOEN) {
368 if ((bmsr & BRGPHY_BMSR_ACOMP) == 0) {
369 /* Erg, still trying, I guess... */
370 mii->mii_media_active |= IFM_NONE;
371 return;
372 }
373
374 switch (PHY_READ(sc, BRGPHY_MII_AUXSTS) &
375 BRGPHY_AUXSTS_AN_RES) {
376 case BRGPHY_RES_1000FD:
377 mii->mii_media_active |= IFM_1000_TX | IFM_FDX;
378 break;
379 case BRGPHY_RES_1000HD:
380 mii->mii_media_active |= IFM_1000_TX | IFM_HDX;
381 break;
382 case BRGPHY_RES_100FD:
383 mii->mii_media_active |= IFM_100_TX | IFM_FDX;
384 break;
385 case BRGPHY_RES_100T4:
386 mii->mii_media_active |= IFM_100_T4;
387 break;
388 case BRGPHY_RES_100HD:
389 mii->mii_media_active |= IFM_100_TX | IFM_HDX;
390 break;
391 case BRGPHY_RES_10FD:
392 mii->mii_media_active |= IFM_10_T | IFM_FDX;
393 break;
394 case BRGPHY_RES_10HD:
395 mii->mii_media_active |= IFM_10_T | IFM_HDX;
396 break;
397 default:
398 mii->mii_media_active |= IFM_NONE;
399 break;
400 }
401 return;
402 }
403
404 mii->mii_media_active = ife->ifm_media;
405
406 return;
407}
408
409
410static int
411brgphy_mii_phy_auto(mii, waitfor)
412 struct mii_softc *mii;
413 int waitfor;
414{
|
410 int bmsr, i;
|
| 415 int bmsr, ktcr = 0, i; |
416
417 if ((mii->mii_flags & MIIF_DOINGAUTO) == 0) {
|
413 PHY_WRITE(mii, BRGPHY_MII_1000CTL,
|
418 mii_phy_reset(mii);
419 PHY_WRITE(mii, BRGPHY_MII_BMCR, 0);
420 DELAY(1000);
421 ktcr = PHY_READ(mii, BRGPHY_MII_1000CTL);
422 PHY_WRITE(mii, BRGPHY_MII_1000CTL, ktcr | |
423 BRGPHY_1000CTL_AFD|BRGPHY_1000CTL_AHD);
|
415 PHY_WRITE(mii, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
|
424 ktcr = PHY_READ(mii, BRGPHY_MII_1000CTL);
425 DELAY(1000);
426 PHY_WRITE(mii, BRGPHY_MII_ANAR,
427 BMSR_MEDIA_TO_ANAR(mii->mii_capabilities) | ANAR_CSMA);
428 DELAY(1000); |
429 PHY_WRITE(mii, BRGPHY_MII_BMCR,
430 BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
431 PHY_WRITE(mii, BRGPHY_MII_IMR, 0xFF00);
432 }
433
434 if (waitfor) {
435 /* Wait 500ms for it to complete. */
436 for (i = 0; i < 500; i++) {
437 if ((bmsr = PHY_READ(mii, BRGPHY_MII_BMSR)) &
438 BRGPHY_BMSR_ACOMP)
439 return (0);
440 DELAY(1000);
441#if 0
442 if ((bmsr & BMSR_ACOMP) == 0)
443 printf("%s: autonegotiation failed to complete\n",
444 mii->mii_dev.dv_xname);
445#endif
446 }
447
448 /*
449 * Don't need to worry about clearing MIIF_DOINGAUTO.
450 * If that's set, a timeout is pending, and it will
451 * clear the flag.
452 */
453 return (EIO);
454 }
455
456 /*
457 * Just let it finish asynchronously. This is for the benefit of
458 * the tick handler driving autonegotiation. Don't want 500ms
459 * delays all the time while the system is running!
460 */
461 if ((mii->mii_flags & MIIF_DOINGAUTO) == 0) {
462 mii->mii_flags |= MIIF_DOINGAUTO;
463 mii->mii_auto_ch = timeout(mii_phy_auto_timeout, mii, hz >> 1);
464 }
465 return (EJUSTRETURN);
466}
|