FreeBSD/Linux Kernel Cross Reference
sys/dev/mii/qsphy.c
1 /* OpenBSD: qsphy.c,v 1.6 2000/08/26 20:04:18 nate Exp */
2 /* NetBSD: qsphy.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 Quality Semiconductor's QS6612 ethernet 10/100 PHY
72 * datasheet from www.qualitysemi.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/qsphyreg.h>
91
92 #include "miibus_if.h"
93
94 #if !defined(lint)
95 static const char rcsid[] =
96 "$FreeBSD: releng/5.0/sys/dev/mii/qsphy.c 105135 2002-10-14 22:31:52Z alfred $";
97 #endif
98
99 static int qsphy_probe(device_t);
100 static int qsphy_attach(device_t);
101
102 static device_method_t qsphy_methods[] = {
103 /* device interface */
104 DEVMETHOD(device_probe, qsphy_probe),
105 DEVMETHOD(device_attach, qsphy_attach),
106 DEVMETHOD(device_detach, mii_phy_detach),
107 DEVMETHOD(device_shutdown, bus_generic_shutdown),
108 { 0, 0 }
109 };
110
111 static devclass_t qsphy_devclass;
112
113 static driver_t qsphy_driver = {
114 "qsphy",
115 qsphy_methods,
116 sizeof(struct mii_softc)
117 };
118
119 DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, 0, 0);
120
121 static int qsphy_service(struct mii_softc *, struct mii_data *, int);
122 static void qsphy_reset(struct mii_softc *);
123 static void qsphy_status(struct mii_softc *);
124
125 static int
126 qsphy_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_QUALSEMI &&
134 MII_MODEL(ma->mii_id2) == MII_MODEL_QUALSEMI_QS6612) {
135 device_set_desc(dev, MII_STR_QUALSEMI_QS6612);
136 } else
137 return (ENXIO);
138
139 return (0);
140 }
141
142 static int
143 qsphy_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 = qsphy_service;
159 sc->mii_pdata = mii;
160 sc->mii_flags |= MIIF_NOISOLATE;
161
162 qsphy_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 mii_add_media(sc);
170 printf("\n");
171
172 MIIBUS_MEDIAINIT(sc->mii_dev);
173 return (0);
174 }
175
176 static int
177 qsphy_service(sc, mii, cmd)
178 struct mii_softc *sc;
179 struct mii_data *mii;
180 int cmd;
181 {
182 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
183 int reg;
184
185 /*
186 * If we're not selected, then do nothing, just isolate, if
187 * changing media.
188 */
189 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
190 if (cmd == MII_MEDIACHG) {
191 reg = PHY_READ(sc, MII_BMCR);
192 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
193 }
194
195 return (0);
196 }
197
198 switch (cmd) {
199 case MII_POLLSTAT:
200 break;
201
202 case MII_MEDIACHG:
203 /*
204 * If the interface is not up, don't do anything.
205 */
206 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
207 break;
208
209 switch (IFM_SUBTYPE(ife->ifm_media)) {
210 case IFM_AUTO:
211 /*
212 * If we're already in auto mode, just return.
213 */
214 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
215 return (0);
216
217 (void) mii_phy_auto(sc);
218 break;
219
220 default:
221 /*
222 * BMCR data is stored in the ifmedia entry.
223 */
224 PHY_WRITE(sc, MII_ANAR,
225 mii_anar(ife->ifm_media));
226 PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
227 }
228 break;
229
230 case MII_TICK:
231 /*
232 * Is the interface even up?
233 */
234 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
235 return (0);
236
237 /*
238 * Only used for autonegotiation.
239 */
240 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
241 break;
242
243 /*
244 * This PHY's autonegotiation doesn't need to be kicked.
245 */
246 break;
247 }
248
249 /* Update the media status. */
250 qsphy_status(sc);
251
252 /* Callback if something changed. */
253 mii_phy_update(sc, cmd);
254 return (0);
255 }
256
257 static void
258 qsphy_status(sc)
259 struct mii_softc *sc;
260 {
261 struct mii_data *mii = sc->mii_pdata;
262 int bmsr, bmcr, pctl;
263
264 mii->mii_media_status = IFM_AVALID;
265 mii->mii_media_active = IFM_ETHER;
266
267 bmsr = PHY_READ(sc, MII_BMSR) |
268 PHY_READ(sc, MII_BMSR);
269 if (bmsr & BMSR_LINK)
270 mii->mii_media_status |= IFM_ACTIVE;
271
272 bmcr = PHY_READ(sc, MII_BMCR);
273 if (bmcr & BMCR_ISO) {
274 mii->mii_media_active |= IFM_NONE;
275 mii->mii_media_status = 0;
276 return;
277 }
278
279 if (bmcr & BMCR_LOOP)
280 mii->mii_media_active |= IFM_LOOP;
281
282 pctl = PHY_READ(sc, MII_QSPHY_PCTL);
283 switch (pctl & PCTL_OPMASK) {
284 case PCTL_10_T:
285 mii->mii_media_active |= IFM_10_T;
286 break;
287 case PCTL_10_T_FDX:
288 mii->mii_media_active |= IFM_10_T|IFM_FDX;
289 break;
290 case PCTL_100_TX:
291 mii->mii_media_active |= IFM_100_TX;
292 break;
293 case PCTL_100_TX_FDX:
294 mii->mii_media_active |= IFM_100_TX|IFM_FDX;
295 break;
296 case PCTL_100_T4:
297 mii->mii_media_active |= IFM_100_T4;
298 break;
299 case PCTL_AN:
300 mii->mii_media_active |= IFM_NONE;
301 break;
302 default:
303 /* Erg... this shouldn't happen. */
304 mii->mii_media_active |= IFM_NONE;
305 break;
306 }
307 }
308
309 static void
310 qsphy_reset(sc)
311 struct mii_softc *sc;
312 {
313
314 mii_phy_reset(sc);
315 PHY_WRITE(sc, MII_QSPHY_IMASK, 0);
316 }
Cache object: 35240b7bf913e07e967cf661fc5a1aed
|