tlphy.c revision 1.65 1 1.65 msaitoh /* $NetBSD: tlphy.c,v 1.65 2019/03/05 02:13:15 msaitoh Exp $ */
2 1.7 thorpej
3 1.7 thorpej /*-
4 1.26 thorpej * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
5 1.7 thorpej * All rights reserved.
6 1.7 thorpej *
7 1.7 thorpej * This code is derived from software contributed to The NetBSD Foundation
8 1.7 thorpej * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 1.7 thorpej * NASA Ames Research Center.
10 1.7 thorpej *
11 1.7 thorpej * Redistribution and use in source and binary forms, with or without
12 1.7 thorpej * modification, are permitted provided that the following conditions
13 1.7 thorpej * are met:
14 1.7 thorpej * 1. Redistributions of source code must retain the above copyright
15 1.7 thorpej * notice, this list of conditions and the following disclaimer.
16 1.7 thorpej * 2. Redistributions in binary form must reproduce the above copyright
17 1.7 thorpej * notice, this list of conditions and the following disclaimer in the
18 1.7 thorpej * documentation and/or other materials provided with the distribution.
19 1.7 thorpej *
20 1.7 thorpej * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 1.7 thorpej * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 1.7 thorpej * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 1.7 thorpej * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 1.7 thorpej * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 1.7 thorpej * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 1.7 thorpej * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 1.7 thorpej * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 1.7 thorpej * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 1.7 thorpej * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 1.7 thorpej * POSSIBILITY OF SUCH DAMAGE.
31 1.7 thorpej */
32 1.7 thorpej
33 1.1 bouyer /*
34 1.1 bouyer * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
35 1.1 bouyer *
36 1.1 bouyer * Redistribution and use in source and binary forms, with or without
37 1.1 bouyer * modification, are permitted provided that the following conditions
38 1.1 bouyer * are met:
39 1.1 bouyer * 1. Redistributions of source code must retain the above copyright
40 1.1 bouyer * notice, this list of conditions and the following disclaimer.
41 1.1 bouyer * 2. Redistributions in binary form must reproduce the above copyright
42 1.1 bouyer * notice, this list of conditions and the following disclaimer in the
43 1.1 bouyer * documentation and/or other materials provided with the distribution.
44 1.1 bouyer *
45 1.1 bouyer * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
46 1.1 bouyer * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47 1.1 bouyer * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
48 1.1 bouyer * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
49 1.1 bouyer * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
50 1.1 bouyer * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
51 1.1 bouyer * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
52 1.1 bouyer * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
53 1.1 bouyer * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
54 1.1 bouyer * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
55 1.1 bouyer */
56 1.1 bouyer
57 1.7 thorpej /*
58 1.7 thorpej * Driver for Texas Instruments's ThunderLAN PHYs
59 1.7 thorpej */
60 1.33 lukem
61 1.33 lukem #include <sys/cdefs.h>
62 1.65 msaitoh __KERNEL_RCSID(0, "$NetBSD: tlphy.c,v 1.65 2019/03/05 02:13:15 msaitoh Exp $");
63 1.1 bouyer
64 1.1 bouyer #include <sys/param.h>
65 1.1 bouyer #include <sys/systm.h>
66 1.1 bouyer #include <sys/kernel.h>
67 1.1 bouyer #include <sys/device.h>
68 1.1 bouyer #include <sys/socket.h>
69 1.17 thorpej #include <sys/errno.h>
70 1.7 thorpej
71 1.51 ad #include <sys/bus.h>
72 1.7 thorpej
73 1.1 bouyer #include <net/if.h>
74 1.1 bouyer #include <net/if_media.h>
75 1.1 bouyer
76 1.7 thorpej #include <net/if_ether.h>
77 1.1 bouyer
78 1.7 thorpej #include <dev/mii/mii.h>
79 1.7 thorpej #include <dev/mii/miivar.h>
80 1.7 thorpej #include <dev/mii/miidevs.h>
81 1.7 thorpej
82 1.7 thorpej #include <dev/mii/tlphyreg.h>
83 1.7 thorpej #include <dev/mii/tlphyvar.h>
84 1.7 thorpej
85 1.7 thorpej /* ThunderLAN PHY can only be on a ThunderLAN */
86 1.7 thorpej #include <dev/pci/if_tlvar.h>
87 1.7 thorpej
88 1.7 thorpej struct tlphy_softc {
89 1.7 thorpej struct mii_softc sc_mii; /* generic PHY */
90 1.7 thorpej int sc_tlphycap;
91 1.17 thorpej int sc_need_acomp;
92 1.7 thorpej };
93 1.1 bouyer
94 1.56 xtraeme static int tlphymatch(device_t, cfdata_t, void *);
95 1.56 xtraeme static void tlphyattach(device_t, device_t, void *);
96 1.1 bouyer
97 1.56 xtraeme CFATTACH_DECL_NEW(tlphy, sizeof(struct tlphy_softc),
98 1.37 thorpej tlphymatch, tlphyattach, mii_phy_detach, mii_phy_activate);
99 1.1 bouyer
100 1.41 thorpej static int tlphy_service(struct mii_softc *, struct mii_data *, int);
101 1.41 thorpej static int tlphy_auto(struct tlphy_softc *, int);
102 1.41 thorpej static void tlphy_acomp(struct tlphy_softc *);
103 1.41 thorpej static void tlphy_status(struct mii_softc *);
104 1.7 thorpej
105 1.41 thorpej static const struct mii_phy_funcs tlphy_funcs = {
106 1.26 thorpej tlphy_service, tlphy_status, mii_phy_reset,
107 1.26 thorpej };
108 1.26 thorpej
109 1.41 thorpej static const struct mii_phydesc tlphys[] = {
110 1.64 christos MII_PHY_DESC(TI, TLAN10T),
111 1.64 christos MII_PHY_END,
112 1.30 thorpej };
113 1.30 thorpej
114 1.41 thorpej static int
115 1.56 xtraeme tlphymatch(device_t parent, cfdata_t match, void *aux)
116 1.1 bouyer {
117 1.42 perry struct mii_attach_args *ma = aux;
118 1.1 bouyer
119 1.30 thorpej if (mii_phy_match(ma, tlphys) != NULL)
120 1.15 thorpej return (10);
121 1.7 thorpej
122 1.4 thorpej return (0);
123 1.1 bouyer }
124 1.1 bouyer
125 1.41 thorpej static void
126 1.56 xtraeme tlphyattach(device_t parent, device_t self, void *aux)
127 1.1 bouyer {
128 1.57 tsutsui struct tlphy_softc *tsc = device_private(self);
129 1.57 tsutsui struct mii_softc *sc = &tsc->sc_mii;
130 1.46 thorpej struct tl_softc *tlsc = device_private(device_parent(self));
131 1.7 thorpej struct mii_attach_args *ma = aux;
132 1.7 thorpej struct mii_data *mii = ma->mii_data;
133 1.30 thorpej const struct mii_phydesc *mpd;
134 1.7 thorpej const char *sep = "";
135 1.7 thorpej
136 1.30 thorpej mpd = mii_phy_match(ma, tlphys);
137 1.39 thorpej aprint_naive(": Media interface\n");
138 1.39 thorpej aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
139 1.7 thorpej
140 1.57 tsutsui sc->mii_dev = self;
141 1.57 tsutsui sc->mii_inst = mii->mii_instance;
142 1.57 tsutsui sc->mii_phy = ma->mii_phyno;
143 1.57 tsutsui sc->mii_funcs = &tlphy_funcs;
144 1.57 tsutsui sc->mii_pdata = mii;
145 1.57 tsutsui sc->mii_flags = ma->mii_flags;
146 1.57 tsutsui sc->mii_anegticks = MII_ANEGTICKS;
147 1.7 thorpej
148 1.57 tsutsui PHY_RESET(sc);
149 1.7 thorpej
150 1.7 thorpej /*
151 1.7 thorpej * Note that if we're on a device that also supports 100baseTX,
152 1.7 thorpej * we are not going to want to use the built-in 10baseT port,
153 1.7 thorpej * since there will be another PHY on the MII wired up to the
154 1.7 thorpej * UTP connector. The parent indicates this to us by specifying
155 1.7 thorpej * the TLPHY_MEDIA_NO_10_T bit.
156 1.7 thorpej */
157 1.57 tsutsui tsc->sc_tlphycap = tlsc->tl_product->tp_tlphymedia;
158 1.63 msaitoh if ((tsc->sc_tlphycap & TLPHY_MEDIA_NO_10_T) == 0) {
159 1.63 msaitoh PHY_READ(sc, MII_BMSR, &sc->mii_capabilities);
160 1.63 msaitoh sc->mii_capabilities &= ma->mii_capmask;
161 1.63 msaitoh } else
162 1.57 tsutsui sc->mii_capabilities = 0;
163 1.7 thorpej
164 1.19 thorpej
165 1.7 thorpej #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
166 1.39 thorpej #define PRINT(str) aprint_normal("%s%s", sep, str); sep = ", "
167 1.7 thorpej
168 1.56 xtraeme aprint_normal_dev(self, "");
169 1.57 tsutsui if (tsc->sc_tlphycap) {
170 1.57 tsutsui if (tsc->sc_tlphycap & TLPHY_MEDIA_10_2) {
171 1.7 thorpej ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_2, 0,
172 1.57 tsutsui sc->mii_inst), 0);
173 1.19 thorpej PRINT("10base2");
174 1.57 tsutsui } else if (tsc->sc_tlphycap & TLPHY_MEDIA_10_5) {
175 1.7 thorpej ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0,
176 1.57 tsutsui sc->mii_inst), 0);
177 1.19 thorpej PRINT("10base5");
178 1.7 thorpej }
179 1.7 thorpej }
180 1.57 tsutsui if (sc->mii_capabilities & BMSR_MEDIAMASK) {
181 1.39 thorpej aprint_normal("%s", sep);
182 1.57 tsutsui mii_phy_add_media(sc);
183 1.65 msaitoh } else {
184 1.65 msaitoh if ((tsc->sc_tlphycap &
185 1.19 thorpej (TLPHY_MEDIA_10_2 | TLPHY_MEDIA_10_5)) == 0)
186 1.65 msaitoh aprint_error("no media present");
187 1.65 msaitoh /*
188 1.65 msaitoh * mii_phy_add_media() automatically install power handler,
189 1.65 msaitoh * but if_media_add() doesn't. Do it now.
190 1.65 msaitoh */
191 1.65 msaitoh if (!pmf_device_register(self, NULL, mii_phy_resume)) {
192 1.65 msaitoh aprint_normal("\n");
193 1.65 msaitoh aprint_error_dev(self,
194 1.65 msaitoh "couldn't establish power handler");
195 1.65 msaitoh }
196 1.58 dyoung }
197 1.39 thorpej aprint_normal("\n");
198 1.7 thorpej #undef ADD
199 1.7 thorpej #undef PRINT
200 1.7 thorpej }
201 1.7 thorpej
202 1.41 thorpej static int
203 1.57 tsutsui tlphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
204 1.7 thorpej {
205 1.57 tsutsui struct tlphy_softc *tsc = (struct tlphy_softc *)sc;
206 1.11 thorpej struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
207 1.63 msaitoh uint16_t reg;
208 1.21 thorpej
209 1.57 tsutsui if ((sc->mii_flags & MIIF_DOINGAUTO) == 0 && tsc->sc_need_acomp)
210 1.57 tsutsui tlphy_acomp(tsc);
211 1.17 thorpej
212 1.7 thorpej switch (cmd) {
213 1.7 thorpej case MII_POLLSTAT:
214 1.7 thorpej /*
215 1.7 thorpej * If we're not polling our PHY instance, just return.
216 1.7 thorpej */
217 1.57 tsutsui if (IFM_INST(ife->ifm_media) != sc->mii_inst)
218 1.7 thorpej return (0);
219 1.1 bouyer break;
220 1.7 thorpej
221 1.7 thorpej case MII_MEDIACHG:
222 1.7 thorpej /*
223 1.7 thorpej * If the media indicates a different PHY instance,
224 1.7 thorpej * isolate ourselves.
225 1.7 thorpej */
226 1.57 tsutsui if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
227 1.63 msaitoh PHY_READ(sc, MII_BMCR, ®);
228 1.57 tsutsui PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
229 1.7 thorpej return (0);
230 1.7 thorpej }
231 1.42 perry
232 1.7 thorpej /*
233 1.7 thorpej * If the interface is not up, don't do anything.
234 1.7 thorpej */
235 1.7 thorpej if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
236 1.7 thorpej break;
237 1.7 thorpej
238 1.11 thorpej switch (IFM_SUBTYPE(ife->ifm_media)) {
239 1.7 thorpej case IFM_AUTO:
240 1.7 thorpej /*
241 1.7 thorpej * The ThunderLAN PHY doesn't self-configure after
242 1.7 thorpej * an autonegotiation cycle, so there's no such
243 1.7 thorpej * thing as "already in auto mode".
244 1.7 thorpej */
245 1.57 tsutsui (void) tlphy_auto(tsc, 1);
246 1.7 thorpej break;
247 1.7 thorpej case IFM_10_2:
248 1.7 thorpej case IFM_10_5:
249 1.57 tsutsui PHY_WRITE(sc, MII_BMCR, 0);
250 1.57 tsutsui PHY_WRITE(sc, MII_TLPHY_CTRL, CTRL_AUISEL);
251 1.7 thorpej delay(100000);
252 1.7 thorpej break;
253 1.7 thorpej default:
254 1.57 tsutsui PHY_WRITE(sc, MII_TLPHY_CTRL, 0);
255 1.7 thorpej delay(100000);
256 1.57 tsutsui mii_phy_setmedia(sc);
257 1.7 thorpej }
258 1.1 bouyer break;
259 1.7 thorpej
260 1.7 thorpej case MII_TICK:
261 1.7 thorpej /*
262 1.7 thorpej * If we're not currently selected, just return.
263 1.7 thorpej */
264 1.57 tsutsui if (IFM_INST(ife->ifm_media) != sc->mii_inst)
265 1.7 thorpej return (0);
266 1.7 thorpej
267 1.7 thorpej /*
268 1.7 thorpej * XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?!
269 1.7 thorpej */
270 1.7 thorpej
271 1.57 tsutsui if (mii_phy_tick(sc) == EJUSTRETURN)
272 1.17 thorpej return (0);
273 1.3 christos break;
274 1.20 thorpej
275 1.20 thorpej case MII_DOWN:
276 1.57 tsutsui mii_phy_down(sc);
277 1.20 thorpej return (0);
278 1.1 bouyer }
279 1.1 bouyer
280 1.7 thorpej /* Update the media status. */
281 1.57 tsutsui mii_phy_status(sc);
282 1.7 thorpej
283 1.7 thorpej /* Callback if something changed. */
284 1.57 tsutsui mii_phy_update(sc, cmd);
285 1.7 thorpej return (0);
286 1.1 bouyer }
287 1.1 bouyer
288 1.41 thorpej static void
289 1.57 tsutsui tlphy_status(struct mii_softc *sc)
290 1.1 bouyer {
291 1.57 tsutsui struct tlphy_softc *tsc = (struct tlphy_softc *)sc;
292 1.57 tsutsui struct mii_data *mii = sc->mii_pdata;
293 1.63 msaitoh uint16_t bmsr, bmcr, tlctrl;
294 1.4 thorpej
295 1.7 thorpej mii->mii_media_status = IFM_AVALID;
296 1.7 thorpej mii->mii_media_active = IFM_ETHER;
297 1.1 bouyer
298 1.63 msaitoh PHY_READ(sc, MII_BMCR, &bmcr);
299 1.7 thorpej if (bmcr & BMCR_ISO) {
300 1.7 thorpej mii->mii_media_active |= IFM_NONE;
301 1.42 perry mii->mii_media_status = 0;
302 1.7 thorpej return;
303 1.1 bouyer }
304 1.1 bouyer
305 1.63 msaitoh PHY_READ(sc, MII_TLPHY_CTRL, &tlctrl);
306 1.7 thorpej if (tlctrl & CTRL_AUISEL) {
307 1.57 tsutsui if (tsc->sc_tlphycap & TLPHY_MEDIA_10_2)
308 1.10 bouyer mii->mii_media_active |= IFM_10_2;
309 1.57 tsutsui else if (tsc->sc_tlphycap & TLPHY_MEDIA_10_5)
310 1.10 bouyer mii->mii_media_active |= IFM_10_5;
311 1.1 bouyer else
312 1.10 bouyer printf("%s: AUI selected with no matching media !\n",
313 1.57 tsutsui device_xname(sc->mii_dev));
314 1.31 bouyer mii->mii_media_status |= IFM_ACTIVE;
315 1.7 thorpej return;
316 1.1 bouyer }
317 1.10 bouyer
318 1.63 msaitoh PHY_READ(sc, MII_BMSR, &bmsr);
319 1.63 msaitoh PHY_READ(sc, MII_BMSR, &bmsr);
320 1.42 perry if (bmsr & BMSR_LINK)
321 1.10 bouyer mii->mii_media_status |= IFM_ACTIVE;
322 1.7 thorpej
323 1.7 thorpej if (bmcr & BMCR_LOOP)
324 1.7 thorpej mii->mii_media_active |= IFM_LOOP;
325 1.7 thorpej
326 1.7 thorpej /*
327 1.7 thorpej * Grr, braindead ThunderLAN PHY doesn't have any way to
328 1.7 thorpej * tell which media is actually active. (Note it also
329 1.7 thorpej * doesn't self-configure after autonegotiation.) We
330 1.7 thorpej * just have to report what's in the BMCR.
331 1.7 thorpej */
332 1.7 thorpej if (bmcr & BMCR_FDX)
333 1.7 thorpej mii->mii_media_active |= IFM_FDX;
334 1.62 msaitoh else
335 1.62 msaitoh mii->mii_media_active |= IFM_HDX;
336 1.7 thorpej mii->mii_media_active |= IFM_10_T;
337 1.1 bouyer }
338 1.1 bouyer
339 1.41 thorpej static int
340 1.57 tsutsui tlphy_auto(struct tlphy_softc *tsc, int waitfor)
341 1.17 thorpej {
342 1.57 tsutsui struct mii_softc *sc = &tsc->sc_mii;
343 1.17 thorpej int error;
344 1.17 thorpej
345 1.57 tsutsui switch ((error = mii_phy_auto(sc, waitfor))) {
346 1.17 thorpej case EIO:
347 1.17 thorpej /*
348 1.17 thorpej * Just assume we're not in full-duplex mode.
349 1.17 thorpej * XXX Check link and try AUI/BNC?
350 1.17 thorpej */
351 1.57 tsutsui PHY_WRITE(sc, MII_BMCR, 0);
352 1.17 thorpej break;
353 1.17 thorpej
354 1.17 thorpej case EJUSTRETURN:
355 1.17 thorpej /* Flag that we need to program when it completes. */
356 1.57 tsutsui tsc->sc_need_acomp = 1;
357 1.17 thorpej break;
358 1.17 thorpej
359 1.17 thorpej default:
360 1.57 tsutsui tlphy_acomp(tsc);
361 1.17 thorpej }
362 1.17 thorpej
363 1.17 thorpej return (error);
364 1.17 thorpej }
365 1.17 thorpej
366 1.41 thorpej static void
367 1.57 tsutsui tlphy_acomp(struct tlphy_softc *tsc)
368 1.1 bouyer {
369 1.57 tsutsui struct mii_softc *sc = &tsc->sc_mii;
370 1.63 msaitoh uint16_t aner, anar, anlpar, result;
371 1.1 bouyer
372 1.57 tsutsui tsc->sc_need_acomp = 0;
373 1.7 thorpej
374 1.7 thorpej /*
375 1.7 thorpej * Grr, braindead ThunderLAN PHY doesn't self-configure
376 1.7 thorpej * after autonegotiation. We have to do it ourselves
377 1.7 thorpej * based on the link partner status.
378 1.7 thorpej */
379 1.7 thorpej
380 1.63 msaitoh PHY_READ(sc, MII_ANER, &aner);
381 1.7 thorpej if (aner & ANER_LPAN) {
382 1.63 msaitoh PHY_READ(sc, MII_ANAR, &anar);
383 1.63 msaitoh PHY_READ(sc, MII_ANLPAR, &anlpar);
384 1.63 msaitoh result = anar & anlpar;
385 1.63 msaitoh if (result & ANAR_10_FD) {
386 1.57 tsutsui PHY_WRITE(sc, MII_BMCR, BMCR_FDX);
387 1.7 thorpej return;
388 1.7 thorpej }
389 1.7 thorpej }
390 1.57 tsutsui PHY_WRITE(sc, MII_BMCR, 0);
391 1.1 bouyer }
392