1/*-
2 * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
7 * NASA Ames Research Center.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31/*
32 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
36 * are met:
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
42 *
43 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
44 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
45 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
46 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
47 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
48 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
49 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
50 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
51 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
52 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
53 *
54 * from: NetBSD: bmtphy.c,v 1.8 2002/07/03 06:25:50 simonb Exp
55 *
56 */
57
58#include <sys/cdefs.h>
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59__FBSDID("$FreeBSD: head/sys/dev/mii/bmtphy.c 215716 2010-11-22 21:24:29Z marius $");
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| 59__FBSDID("$FreeBSD: head/sys/dev/mii/bmtphy.c 215720 2010-11-22 22:03:11Z marius $"); |
60
61/*
62 * Driver for the Broadcom BCM5201/BCM5202 "Mini-Theta" PHYs. This also
63 * drives the PHY on the 3Com 3c905C. The 3c905C's PHY is described in
64 * the 3c905C data sheet.
65 */
66
67#include <sys/param.h>
68#include <sys/systm.h>
69#include <sys/kernel.h>
70#include <sys/module.h>
71#include <sys/socket.h>
72#include <sys/bus.h>
73
74#include <net/if.h>
75#include <net/if_media.h>
76
77#include <dev/mii/mii.h>
78#include <dev/mii/miivar.h>
79#include "miidevs.h"
80
81#include <dev/mii/bmtphyreg.h>
82
83#include "miibus_if.h"
84
85static int bmtphy_probe(device_t);
86static int bmtphy_attach(device_t);
87
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88struct bmtphy_softc {
89 struct mii_softc mii_sc;
90 int mii_model;
91};
92 |
93static device_method_t bmtphy_methods[] = {
94 /* Device interface */
95 DEVMETHOD(device_probe, bmtphy_probe),
96 DEVMETHOD(device_attach, bmtphy_attach),
97 DEVMETHOD(device_detach, mii_phy_detach),
98 DEVMETHOD(device_shutdown, bus_generic_shutdown),
99
100 { 0, 0 }
101};
102
103static devclass_t bmtphy_devclass;
104
105static driver_t bmtphy_driver = {
106 "bmtphy",
107 bmtphy_methods,
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103 sizeof(struct mii_softc)
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| 108 sizeof(struct bmtphy_softc) |
109};
110
111DRIVER_MODULE(bmtphy, miibus, bmtphy_driver, bmtphy_devclass, 0, 0);
112
113static int bmtphy_service(struct mii_softc *, struct mii_data *, int);
114static void bmtphy_status(struct mii_softc *);
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| 115static void bmtphy_reset(struct mii_softc *); |
116
117static const struct mii_phydesc bmtphys_dp[] = {
118 MII_PHY_DESC(BROADCOM, BCM4401),
119 MII_PHY_DESC(BROADCOM, BCM5201),
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| 120 MII_PHY_DESC(BROADCOM, BCM5214), |
121 MII_PHY_DESC(BROADCOM, BCM5221),
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| 122 MII_PHY_DESC(BROADCOM, BCM5222), |
123 MII_PHY_END
124};
125
126static const struct mii_phydesc bmtphys_lp[] = {
127 MII_PHY_DESC(BROADCOM, 3C905B),
128 MII_PHY_DESC(BROADCOM, 3C905C),
129 MII_PHY_END
130};
131
132static int
133bmtphy_probe(device_t dev)
134{
135 int rval;
136
137 /* Let exphy(4) take precedence for these. */
138 rval = mii_phy_dev_probe(dev, bmtphys_lp, BUS_PROBE_LOW_PRIORITY);
139 if (rval <= 0)
140 return (rval);
141
142 return (mii_phy_dev_probe(dev, bmtphys_dp, BUS_PROBE_DEFAULT));
143}
144
145static int
146bmtphy_attach(device_t dev)
147{
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140 struct mii_softc *sc;
141 struct mii_attach_args *ma;
142 struct mii_data *mii;
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148 struct bmtphy_softc *bsc;
149 struct mii_softc *sc;
150 struct mii_attach_args *ma;
151 struct mii_data *mii; |
152
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144 sc = device_get_softc(dev);
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153 bsc = device_get_softc(dev);
154 sc = &bsc->mii_sc; |
155 ma = device_get_ivars(dev);
156 sc->mii_dev = device_get_parent(dev);
157 mii = ma->mii_data;
158 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
159
160 sc->mii_flags = miibus_get_flags(dev);
161 sc->mii_inst = mii->mii_instance++;
162 sc->mii_phy = ma->mii_phyno;
163 sc->mii_service = bmtphy_service;
164 sc->mii_pdata = mii;
165
166 sc->mii_flags |= MIIF_NOMANPAUSE;
167
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158 mii_phy_reset(sc);
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| 168 bsc->mii_model = MII_MODEL(ma->mii_id2); |
169
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170 bmtphy_reset(sc);
171 |
172 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
173 device_printf(dev, " ");
174 mii_phy_add_media(sc);
175 printf("\n");
176
177 MIIBUS_MEDIAINIT(sc->mii_dev);
178
179 return (0);
180}
181
182static int
183bmtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
184{
185
186 switch (cmd) {
187 case MII_POLLSTAT:
188 break;
189
190 case MII_MEDIACHG:
191 /*
192 * If the interface is not up, don't do anything.
193 */
194 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
195 break;
196
197 mii_phy_setmedia(sc);
198 break;
199
200 case MII_TICK:
201 if (mii_phy_tick(sc) == EJUSTRETURN)
202 return (0);
203 break;
204 }
205
206 /* Update the media status. */
207 bmtphy_status(sc);
208
209 /* Callback if something changed. */
210 mii_phy_update(sc, cmd);
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199
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211 return (0);
212}
213
214static void
215bmtphy_status(struct mii_softc *sc)
216{
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206 struct mii_data *mii;
207 struct ifmedia_entry *ife;
208 int bmsr, bmcr, aux_csr;
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217 struct mii_data *mii;
218 struct ifmedia_entry *ife;
219 int bmsr, bmcr, aux_csr; |
220
221 mii = sc->mii_pdata;
222 ife = mii->mii_media.ifm_cur;
223
224 mii->mii_media_status = IFM_AVALID;
225 mii->mii_media_active = IFM_ETHER;
226
227 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
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217 aux_csr = PHY_READ(sc, MII_BMTPHY_AUX_CSR);
|
228
229 if (bmsr & BMSR_LINK)
230 mii->mii_media_status |= IFM_ACTIVE;
231
232 bmcr = PHY_READ(sc, MII_BMCR);
233 if (bmcr & BMCR_ISO) {
234 mii->mii_media_active |= IFM_NONE;
235 mii->mii_media_status = 0;
236 return;
237 }
238
239 if (bmcr & BMCR_LOOP)
240 mii->mii_media_active |= IFM_LOOP;
241
242 if (bmcr & BMCR_AUTOEN) {
243 /*
244 * The media status bits are only valid if autonegotiation
245 * has completed (or it's disabled).
246 */
247 if ((bmsr & BMSR_ACOMP) == 0) {
248 /* Erg, still trying, I guess... */
249 mii->mii_media_active |= IFM_NONE;
250 return;
251 }
252
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| 253 aux_csr = PHY_READ(sc, MII_BMTPHY_AUX_CSR); |
254 if (aux_csr & AUX_CSR_SPEED)
255 mii->mii_media_active |= IFM_100_TX;
256 else
257 mii->mii_media_active |= IFM_10_T;
258 if (aux_csr & AUX_CSR_FDX)
259 mii->mii_media_active |=
260 IFM_FDX | mii_phy_flowstatus(sc);
261 else
262 mii->mii_media_active |= IFM_HDX;
263 } else
264 mii->mii_media_active = ife->ifm_media;
265}
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266
267static void
268bmtphy_reset(struct mii_softc *sc)
269{
270 struct bmtphy_softc *bsc;
271 u_int16_t data;
272
273 bsc = (struct bmtphy_softc *)sc;
274
275 mii_phy_reset(sc);
276
277 if (bsc->mii_model == MII_MODEL_BROADCOM_BCM5221) {
278 /* Enable shadow register mode. */
279 data = PHY_READ(sc, 0x1f);
280 PHY_WRITE(sc, 0x1f, data | 0x0080);
281
282 /* Enable APD (Auto PowerDetect). */
283 data = PHY_READ(sc, MII_BMTPHY_AUX2);
284 PHY_WRITE(sc, MII_BMTPHY_AUX2, data | 0x0020);
285
286 /* Enable clocks across APD for Auto-MDIX functionality. */
287 data = PHY_READ(sc, MII_BMTPHY_INTR);
288 PHY_WRITE(sc, MII_BMTPHY_INTR, data | 0x0004);
289
290 /* Disable shadow register mode. */
291 data = PHY_READ(sc, 0x1f);
292 PHY_WRITE(sc, 0x1f, data & ~0x0080);
293 }
294} |
|