1/* $NetBSD: gentbi.c,v 1.15 2006/03/29 07:05:24 thorpej Exp $ */
2
3/*-
4 * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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 THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
51 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
52 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
53 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
54 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
55 */
56
57/*
58 * Driver for generic ten-bit (1000BASE-SX) interfaces, built into
59 * many Gigabit Ethernet chips.
60 *
61 * All we have to do here is correctly report speed and duplex.
62 */
63
64#include <sys/cdefs.h>
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65__FBSDID("$FreeBSD: head/sys/dev/mii/gentbi.c 215714 2010-11-22 21:20:11Z marius $");
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| 65__FBSDID("$FreeBSD: head/sys/dev/mii/gentbi.c 221407 2011-05-03 19:51:29Z marius $"); |
66
67/*
68 * Driver for generic unknown ten-bit interfaces(1000BASE-{LX,SX}
69 * fiber interfaces).
70 */
71
72#include <sys/param.h>
73#include <sys/systm.h>
74#include <sys/kernel.h>
75#include <sys/module.h>
76#include <sys/socket.h>
77#include <sys/errno.h>
78#include <sys/bus.h>
79
80#include <net/if.h>
81#include <net/if_media.h>
82
83#include <dev/mii/mii.h>
84#include <dev/mii/miivar.h>
85#include "miidevs.h"
86
87#include "miibus_if.h"
88
89static int gentbi_probe(device_t);
90static int gentbi_attach(device_t);
91
92static device_method_t gentbi_methods[] = {
93 /* device interface */
94 DEVMETHOD(device_probe, gentbi_probe),
95 DEVMETHOD(device_attach, gentbi_attach),
96 DEVMETHOD(device_detach, mii_phy_detach),
97 DEVMETHOD(device_shutdown, bus_generic_shutdown),
98 {0, 0}
99};
100
101static devclass_t gentbi_devclass;
102
103static driver_t gentbi_driver = {
104 "gentbi",
105 gentbi_methods,
106 sizeof(struct mii_softc)
107};
108
109DRIVER_MODULE(gentbi, miibus, gentbi_driver, gentbi_devclass, 0, 0);
110
111static int gentbi_service(struct mii_softc *, struct mii_data *, int);
112static void gentbi_status(struct mii_softc *);
113
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114static const struct mii_phy_funcs gentbi_funcs = {
115 gentbi_service,
116 gentbi_status,
117 mii_phy_reset
118};
119 |
120static int
121gentbi_probe(device_t dev)
122{
123 device_t parent;
124 struct mii_attach_args *ma;
125 int bmsr, extsr;
126
127 parent = device_get_parent(dev);
128 ma = device_get_ivars(dev);
129
130 /*
131 * We match as a generic TBI if:
132 *
133 * - There is no media in the BMSR.
134 * - EXTSR has only 1000X.
135 */
136 bmsr = MIIBUS_READREG(parent, ma->mii_phyno, MII_BMSR);
137 if ((bmsr & BMSR_EXTSTAT) == 0 || (bmsr & BMSR_MEDIAMASK) != 0)
138 return (ENXIO);
139
140 extsr = MIIBUS_READREG(parent, ma->mii_phyno, MII_EXTSR);
141 if (extsr & (EXTSR_1000TFDX|EXTSR_1000THDX))
142 return (ENXIO);
143
144 if (extsr & (EXTSR_1000XFDX|EXTSR_1000XHDX)) {
145 /*
146 * We think this is a generic TBI. Return a match
147 * priority higher than ukphy, but lower than what
148 * specific drivers will return.
149 */
150 device_set_desc(dev, "Generic ten-bit interface");
151 return (BUS_PROBE_LOW_PRIORITY);
152 }
153
154 return (ENXIO);
155}
156
157static int
158gentbi_attach(device_t dev)
159{
160 struct mii_softc *sc;
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155 struct mii_attach_args *ma;
156 struct mii_data *mii;
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161
162 sc = device_get_softc(dev);
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159 ma = device_get_ivars(dev);
160 sc->mii_dev = device_get_parent(dev);
161 mii = ma->mii_data;
162 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
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163
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164 if (bootverbose)
165 device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n",
166 MII_OUI(ma->mii_id1, ma->mii_id2),
167 MII_MODEL(ma->mii_id2), MII_REV(ma->mii_id2));
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| 164 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &gentbi_funcs, 0); |
165
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169 sc->mii_flags = miibus_get_flags(dev);
170 sc->mii_inst = mii->mii_instance++;
171 sc->mii_phy = ma->mii_phyno;
172 sc->mii_service = gentbi_service;
173 sc->mii_pdata = mii;
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| 166 PHY_RESET(sc); |
167
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175 sc->mii_flags |= MIIF_NOMANPAUSE;
176
177 mii_phy_reset(sc);
178
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168 /*
169 * Mask out all media in the BMSR. We only are really interested
170 * in "auto".
171 */
172 sc->mii_capabilities =
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184 PHY_READ(sc, MII_BMSR) & ma->mii_capmask & ~BMSR_MEDIAMASK;
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| 173 PHY_READ(sc, MII_BMSR) & sc->mii_capmask & ~BMSR_MEDIAMASK; |
174 if (sc->mii_capabilities & BMSR_EXTSTAT)
175 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
176
177 device_printf(dev, " ");
178 mii_phy_add_media(sc);
179 printf("\n");
180
181 MIIBUS_MEDIAINIT(sc->mii_dev);
182 return (0);
183}
184
185static int
186gentbi_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
187{
188
189 switch (cmd) {
190 case MII_POLLSTAT:
191 break;
192
193 case MII_MEDIACHG:
194 /*
195 * If the interface is not up, don't do anything.
196 */
197 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
198 break;
199
200 mii_phy_setmedia(sc);
201 break;
202
203 case MII_TICK:
204 if (mii_phy_tick(sc) == EJUSTRETURN)
205 return (0);
206 break;
207 }
208
209 /* Update the media status. */
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221 gentbi_status(sc);
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| 210 PHY_STATUS(sc); |
211
212 /* Callback if something changed. */
213 mii_phy_update(sc, cmd);
214 return (0);
215}
216
217static void
218gentbi_status(struct mii_softc *sc)
219{
220 struct mii_data *mii = sc->mii_pdata;
221 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
222 int bmsr, bmcr, anlpar;
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);
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
253 /*
254 * The media is always 1000baseSX. Check the ANLPAR to
255 * see if we're doing full-duplex.
256 */
257 mii->mii_media_active |= IFM_1000_SX;
258 anlpar = PHY_READ(sc, MII_ANLPAR);
259 if ((sc->mii_extcapabilities & EXTSR_1000XFDX) != 0 &&
260 (anlpar & ANLPAR_X_FD) != 0)
261 mii->mii_media_active |=
262 IFM_FDX | mii_phy_flowstatus(sc);
263 else
264 mii->mii_media_active |= IFM_HDX;
265 } else
266 mii->mii_media_active = ife->ifm_media;
267}
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