1 /* $OpenBSD: qsphy.c,v 1.13 2005/02/19 06:00:04 brad 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/device.h>
79 #include <sys/socket.h>
80
81 #include <net/if.h>
82 #include <net/if_media.h>
83
84 #include <dev/mii/mii.h>
85 #include <dev/mii/miivar.h>
86 #include <dev/mii/miidevs.h>
87
88 #include <dev/mii/qsphyreg.h>
89
90 int qsphymatch(struct device *, void *, void *);
91 void qsphyattach(struct device *, struct device *, void *);
92
93 struct cfattach qsphy_ca = {
94 sizeof(struct mii_softc), qsphymatch, qsphyattach, mii_phy_detach,
95 mii_phy_activate
96 };
97
98 struct cfdriver qsphy_cd = {
99 NULL, "qsphy", DV_DULL
100 };
101
102 int qsphy_service(struct mii_softc *, struct mii_data *, int);
103 void qsphy_reset(struct mii_softc *);
104 void qsphy_status(struct mii_softc *);
105
106 const struct mii_phy_funcs qsphy_funcs = {
107 qsphy_service, qsphy_status, qsphy_reset,
108 };
109
110 static const struct mii_phydesc qsphys[] = {
111 { MII_OUI_QUALITYSEMI, MII_MODEL_QUALITYSEMI_QS6612,
112 MII_STR_QUALITYSEMI_QS6612 },
113
114 { 0, 0,
115 NULL },
116 };
117
118 int
qsphymatch(struct device * parent,void * match,void * aux)119 qsphymatch(struct device *parent, void *match, void *aux)
120 {
121 struct mii_attach_args *ma = aux;
122
123 if (mii_phy_match(ma, qsphys) != NULL)
124 return (10);
125
126 return (0);
127 }
128
129 void
qsphyattach(struct device * parent,struct device * self,void * aux)130 qsphyattach(struct device *parent, struct device *self, void *aux)
131 {
132 struct mii_softc *sc = (struct mii_softc *)self;
133 struct mii_attach_args *ma = aux;
134 struct mii_data *mii = ma->mii_data;
135 const struct mii_phydesc *mpd;
136
137 mpd = mii_phy_match(ma, qsphys);
138 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
139
140 sc->mii_inst = mii->mii_instance;
141 sc->mii_phy = ma->mii_phyno;
142 sc->mii_funcs = &qsphy_funcs;
143 sc->mii_pdata = mii;
144 sc->mii_flags = ma->mii_flags;
145
146 PHY_RESET(sc);
147
148 sc->mii_capabilities =
149 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
150 if (sc->mii_capabilities & BMSR_MEDIAMASK)
151 mii_phy_add_media(sc);
152 }
153
154 int
qsphy_service(struct mii_softc * sc,struct mii_data * mii,int cmd)155 qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
156 {
157 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
158 int reg;
159
160 if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0)
161 return (ENXIO);
162
163 switch (cmd) {
164 case MII_POLLSTAT:
165 /*
166 * If we're not polling our PHY instance, just return.
167 */
168 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
169 return (0);
170 break;
171
172 case MII_MEDIACHG:
173 /*
174 * If the media indicates a different PHY instance,
175 * isolate ourselves.
176 */
177 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
178 reg = PHY_READ(sc, MII_BMCR);
179 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
180 return (0);
181 }
182
183 /*
184 * If the interface is not up, don't do anything.
185 */
186 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
187 break;
188
189 mii_phy_setmedia(sc);
190 break;
191
192 case MII_TICK:
193 /*
194 * If we're not currently selected, just return.
195 */
196 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
197 return (0);
198
199 if (mii_phy_tick(sc) == EJUSTRETURN)
200 return (0);
201 break;
202
203 case MII_DOWN:
204 mii_phy_down(sc);
205 return (0);
206 }
207
208 /* Update the media status. */
209 mii_phy_status(sc);
210
211 /* Callback if something changed. */
212 mii_phy_update(sc, cmd);
213 return (0);
214 }
215
216 void
qsphy_status(struct mii_softc * sc)217 qsphy_status(struct mii_softc *sc)
218 {
219 struct mii_data *mii = sc->mii_pdata;
220 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
221 int bmsr, bmcr, pctl;
222
223 mii->mii_media_status = IFM_AVALID;
224 mii->mii_media_active = IFM_ETHER;
225
226 bmsr = PHY_READ(sc, MII_BMSR) |
227 PHY_READ(sc, MII_BMSR);
228 if (bmsr & BMSR_LINK)
229 mii->mii_media_status |= IFM_ACTIVE;
230
231 bmcr = PHY_READ(sc, MII_BMCR);
232 if (bmcr & BMCR_ISO) {
233 mii->mii_media_active |= IFM_NONE;
234 mii->mii_media_status = 0;
235 return;
236 }
237
238 if (bmcr & BMCR_LOOP)
239 mii->mii_media_active |= IFM_LOOP;
240
241 if (bmcr & BMCR_AUTOEN) {
242 if ((bmsr & BMSR_ACOMP) == 0) {
243 /* Erg, still trying, I guess... */
244 mii->mii_media_active |= IFM_NONE;
245 return;
246 }
247 pctl = PHY_READ(sc, MII_QSPHY_PCTL) |
248 PHY_READ(sc, MII_QSPHY_PCTL);
249 switch (pctl & PCTL_OPMASK) {
250 case PCTL_10_T:
251 mii->mii_media_active |= IFM_10_T;
252 break;
253 case PCTL_10_T_FDX:
254 mii->mii_media_active |= IFM_10_T|IFM_FDX;
255 break;
256 case PCTL_100_TX:
257 mii->mii_media_active |= IFM_100_TX;
258 break;
259 case PCTL_100_TX_FDX:
260 mii->mii_media_active |= IFM_100_TX|IFM_FDX;
261 break;
262 case PCTL_100_T4:
263 mii->mii_media_active |= IFM_100_T4;
264 break;
265 default:
266 /* Erg... this shouldn't happen. */
267 mii->mii_media_active |= IFM_NONE;
268 break;
269 }
270 } else
271 mii->mii_media_active = ife->ifm_media;
272 }
273
274 void
qsphy_reset(struct mii_softc * sc)275 qsphy_reset(struct mii_softc *sc)
276 {
277 mii_phy_reset(sc);
278 PHY_WRITE(sc, MII_QSPHY_IMASK, 0);
279 }
280