Line data Source code
1 : /* $OpenBSD: qsphy.c,v 1.21 2015/03/14 03:38:48 jsg 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 : *
21 : * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 : * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 : * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 : * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 : * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 : * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 : * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 : * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 : * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 : * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 : * POSSIBILITY OF SUCH DAMAGE.
32 : */
33 :
34 : /*
35 : * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
36 : *
37 : * Redistribution and use in source and binary forms, with or without
38 : * modification, are permitted provided that the following conditions
39 : * are met:
40 : * 1. Redistributions of source code must retain the above copyright
41 : * notice, this list of conditions and the following disclaimer.
42 : * 2. Redistributions in binary form must reproduce the above copyright
43 : * notice, this list of conditions and the following disclaimer in the
44 : * documentation and/or other materials provided with the distribution.
45 : *
46 : * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
47 : * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
48 : * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
49 : * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
50 : * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
51 : * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
52 : * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
53 : * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
54 : * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
55 : * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
56 : */
57 :
58 : /*
59 : * driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY
60 : * datasheet from www.qualitysemi.com
61 : */
62 :
63 : #include <sys/param.h>
64 : #include <sys/systm.h>
65 : #include <sys/device.h>
66 : #include <sys/socket.h>
67 :
68 : #include <net/if.h>
69 : #include <net/if_var.h>
70 : #include <net/if_media.h>
71 :
72 : #include <dev/mii/mii.h>
73 : #include <dev/mii/miivar.h>
74 : #include <dev/mii/miidevs.h>
75 :
76 : #include <dev/mii/qsphyreg.h>
77 :
78 : int qsphymatch(struct device *, void *, void *);
79 : void qsphyattach(struct device *, struct device *, void *);
80 :
81 : struct cfattach qsphy_ca = {
82 : sizeof(struct mii_softc), qsphymatch, qsphyattach, mii_phy_detach
83 : };
84 :
85 : struct cfdriver qsphy_cd = {
86 : NULL, "qsphy", DV_DULL
87 : };
88 :
89 : int qsphy_service(struct mii_softc *, struct mii_data *, int);
90 : void qsphy_reset(struct mii_softc *);
91 : void qsphy_status(struct mii_softc *);
92 :
93 : const struct mii_phy_funcs qsphy_funcs = {
94 : qsphy_service, qsphy_status, qsphy_reset,
95 : };
96 :
97 : static const struct mii_phydesc qsphys[] = {
98 : { MII_OUI_QUALITYSEMI, MII_MODEL_QUALITYSEMI_QS6612,
99 : MII_STR_QUALITYSEMI_QS6612 },
100 :
101 : { 0, 0,
102 : NULL },
103 : };
104 :
105 : int
106 0 : qsphymatch(struct device *parent, void *match, void *aux)
107 : {
108 0 : struct mii_attach_args *ma = aux;
109 :
110 0 : if (mii_phy_match(ma, qsphys) != NULL)
111 0 : return (10);
112 :
113 0 : return (0);
114 0 : }
115 :
116 : void
117 0 : qsphyattach(struct device *parent, struct device *self, void *aux)
118 : {
119 0 : struct mii_softc *sc = (struct mii_softc *)self;
120 0 : struct mii_attach_args *ma = aux;
121 0 : struct mii_data *mii = ma->mii_data;
122 : const struct mii_phydesc *mpd;
123 :
124 0 : mpd = mii_phy_match(ma, qsphys);
125 0 : printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
126 :
127 0 : sc->mii_inst = mii->mii_instance;
128 0 : sc->mii_phy = ma->mii_phyno;
129 0 : sc->mii_funcs = &qsphy_funcs;
130 0 : sc->mii_pdata = mii;
131 0 : sc->mii_flags = ma->mii_flags;
132 :
133 0 : PHY_RESET(sc);
134 :
135 0 : sc->mii_capabilities =
136 0 : PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
137 0 : if (sc->mii_capabilities & BMSR_MEDIAMASK)
138 0 : mii_phy_add_media(sc);
139 0 : }
140 :
141 : int
142 0 : qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
143 : {
144 0 : struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
145 : int reg;
146 :
147 0 : if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0)
148 0 : return (ENXIO);
149 :
150 0 : switch (cmd) {
151 : case MII_POLLSTAT:
152 : /*
153 : * If we're not polling our PHY instance, just return.
154 : */
155 0 : if (IFM_INST(ife->ifm_media) != sc->mii_inst)
156 0 : return (0);
157 : break;
158 :
159 : case MII_MEDIACHG:
160 : /*
161 : * If the media indicates a different PHY instance,
162 : * isolate ourselves.
163 : */
164 0 : if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
165 0 : reg = PHY_READ(sc, MII_BMCR);
166 0 : PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
167 0 : return (0);
168 : }
169 :
170 : /*
171 : * If the interface is not up, don't do anything.
172 : */
173 0 : if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
174 : break;
175 :
176 0 : mii_phy_setmedia(sc);
177 0 : break;
178 :
179 : case MII_TICK:
180 : /*
181 : * If we're not currently selected, just return.
182 : */
183 0 : if (IFM_INST(ife->ifm_media) != sc->mii_inst)
184 0 : return (0);
185 :
186 0 : if (mii_phy_tick(sc) == EJUSTRETURN)
187 0 : return (0);
188 : break;
189 :
190 : case MII_DOWN:
191 0 : mii_phy_down(sc);
192 0 : return (0);
193 : }
194 :
195 : /* Update the media status. */
196 0 : mii_phy_status(sc);
197 :
198 : /* Callback if something changed. */
199 0 : mii_phy_update(sc, cmd);
200 0 : return (0);
201 0 : }
202 :
203 : void
204 0 : qsphy_status(struct mii_softc *sc)
205 : {
206 0 : struct mii_data *mii = sc->mii_pdata;
207 0 : struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
208 : int bmsr, bmcr, pctl;
209 :
210 0 : mii->mii_media_status = IFM_AVALID;
211 0 : mii->mii_media_active = IFM_ETHER;
212 :
213 0 : bmsr = PHY_READ(sc, MII_BMSR) |
214 0 : PHY_READ(sc, MII_BMSR);
215 0 : if (bmsr & BMSR_LINK)
216 0 : mii->mii_media_status |= IFM_ACTIVE;
217 :
218 0 : bmcr = PHY_READ(sc, MII_BMCR);
219 0 : if (bmcr & BMCR_ISO) {
220 0 : mii->mii_media_active |= IFM_NONE;
221 0 : mii->mii_media_status = 0;
222 0 : return;
223 : }
224 :
225 0 : if (bmcr & BMCR_LOOP)
226 0 : mii->mii_media_active |= IFM_LOOP;
227 :
228 0 : if (bmcr & BMCR_AUTOEN) {
229 0 : if ((bmsr & BMSR_ACOMP) == 0) {
230 : /* Erg, still trying, I guess... */
231 0 : mii->mii_media_active |= IFM_NONE;
232 0 : return;
233 : }
234 0 : pctl = PHY_READ(sc, MII_QSPHY_PCTL) |
235 0 : PHY_READ(sc, MII_QSPHY_PCTL);
236 0 : switch (pctl & PCTL_OPMASK) {
237 : case PCTL_10_T:
238 0 : mii->mii_media_active |= IFM_10_T|IFM_HDX;
239 0 : break;
240 : case PCTL_10_T_FDX:
241 0 : mii->mii_media_active |= IFM_10_T|IFM_FDX;
242 0 : break;
243 : case PCTL_100_TX:
244 0 : mii->mii_media_active |= IFM_100_TX|IFM_HDX;
245 0 : break;
246 : case PCTL_100_TX_FDX:
247 0 : mii->mii_media_active |= IFM_100_TX|IFM_FDX;
248 0 : break;
249 : case PCTL_100_T4:
250 0 : mii->mii_media_active |= IFM_100_T4|IFM_HDX;
251 0 : break;
252 : default:
253 : /* Erg... this shouldn't happen. */
254 0 : mii->mii_media_active |= IFM_NONE;
255 0 : break;
256 : }
257 : } else
258 0 : mii->mii_media_active = ife->ifm_media;
259 0 : }
260 :
261 : void
262 0 : qsphy_reset(struct mii_softc *sc)
263 : {
264 0 : mii_phy_reset(sc);
265 0 : PHY_WRITE(sc, MII_QSPHY_IMASK, 0);
266 0 : }
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