kernel: Use NULL for DRIVER_MODULE()'s evh & arg (which are pointers).
[dragonfly.git] / sys / dev / netif / mii_layer / qsphy.c
CommitLineData
46ad174e 1/* $OpenBSD: qsphy.c,v 1.13 2005/02/19 06:00:04 brad Exp $ */
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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.
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39 *
40 * $FreeBSD: src/sys/dev/mii/qsphy.c,v 1.1.2.2 2002/10/21 21:21:42 semenu Exp $
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41 */
42
43/*
44 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
45 *
46 * Redistribution and use in source and binary forms, with or without
47 * modification, are permitted provided that the following conditions
48 * are met:
49 * 1. Redistributions of source code must retain the above copyright
50 * notice, this list of conditions and the following disclaimer.
51 * 2. Redistributions in binary form must reproduce the above copyright
52 * notice, this list of conditions and the following disclaimer in the
53 * documentation and/or other materials provided with the distribution.
54 * 3. All advertising materials mentioning features or use of this software
55 * must display the following acknowledgement:
56 * This product includes software developed by Manuel Bouyer.
57 * 4. The name of the author may not be used to endorse or promote products
58 * derived from this software without specific prior written permission.
59 *
60 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
61 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
62 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
63 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
64 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
65 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
66 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
67 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
68 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
69 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
70 */
71
72/*
73 * driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY
74 * datasheet from www.qualitysemi.com
75 */
76
77#include <sys/param.h>
78#include <sys/systm.h>
79#include <sys/kernel.h>
80#include <sys/socket.h>
81#include <sys/errno.h>
82#include <sys/module.h>
83#include <sys/bus.h>
84
85#include <net/if.h>
86#include <net/if_media.h>
87
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88#include "mii.h"
89#include "miivar.h"
90#include "miidevs.h"
984263bc 91
1f2de5d4 92#include "qsphyreg.h"
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93
94#include "miibus_if.h"
95
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96static int qsphy_probe (device_t);
97static int qsphy_attach (device_t);
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98
99static device_method_t qsphy_methods[] = {
100 /* device interface */
101 DEVMETHOD(device_probe, qsphy_probe),
102 DEVMETHOD(device_attach, qsphy_attach),
46ad174e 103 DEVMETHOD(device_detach, ukphy_detach),
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104 DEVMETHOD(device_shutdown, bus_generic_shutdown),
105 { 0, 0 }
106};
107
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108static const struct mii_phydesc qsphys[] = {
109 MII_PHYDESC(QUALSEMI, QS6612),
110 MII_PHYDESC_NULL
111};
112
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113static devclass_t qsphy_devclass;
114
115static driver_t qsphy_driver = {
116 "qsphy",
117 qsphy_methods,
118 sizeof(struct mii_softc)
119};
120
aa2b9d05 121DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, NULL, NULL);
984263bc 122
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123static int qsphy_service(struct mii_softc *, struct mii_data *, int);
124static void qsphy_reset(struct mii_softc *);
125static void qsphy_status(struct mii_softc *);
984263bc 126
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127static int
128qsphy_probe(device_t dev)
984263bc 129{
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130 struct mii_attach_args *ma = device_get_ivars(dev);
131 const struct mii_phydesc *mpd;
984263bc 132
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133 mpd = mii_phy_match(ma, qsphys);
134 if (mpd != NULL) {
135 device_set_desc(dev, mpd->mpd_name);
136 return (0);
137 }
138 return (ENXIO);
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139}
140
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141static int
142qsphy_attach(device_t dev)
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143{
144 struct mii_softc *sc;
145 struct mii_attach_args *ma;
146 struct mii_data *mii;
147
148 sc = device_get_softc(dev);
149 ma = device_get_ivars(dev);
b9bc8a8c 150 mii_softc_init(sc, ma);
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151 sc->mii_dev = device_get_parent(dev);
152 mii = device_get_softc(sc->mii_dev);
153 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
154
155 sc->mii_inst = mii->mii_instance;
984263bc 156 sc->mii_service = qsphy_service;
46ad174e 157 sc->mii_reset = qsphy_reset;
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158 sc->mii_pdata = mii;
159 sc->mii_flags |= MIIF_NOISOLATE;
160
161 qsphy_reset(sc);
162
163 mii->mii_instance++;
164
46ad174e 165 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
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166 device_printf(dev, " ");
167 if (sc->mii_capabilities & BMSR_MEDIAMASK)
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168 mii_phy_add_media(sc);
169 else
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170 kprintf("no media present");
171 kprintf("\n");
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172
173 MIIBUS_MEDIAINIT(sc->mii_dev);
174 return (0);
175}
176
c436375a 177static int
c436375a 178qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
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179{
180 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
181 int reg;
182
183 /*
184 * If we're not selected, then do nothing, just isolate, if
185 * changing media.
186 */
187 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
188 if (cmd == MII_MEDIACHG) {
189 reg = PHY_READ(sc, MII_BMCR);
190 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
191 }
192
193 return (0);
194 }
195
196 switch (cmd) {
197 case MII_POLLSTAT:
198 break;
199
200 case MII_MEDIACHG:
201 /*
202 * If the interface is not up, don't do anything.
203 */
204 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
205 break;
206
46ad174e 207 mii_phy_set_media(sc);
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208 break;
209
210 case MII_TICK:
211 /*
212 * Is the interface even up?
213 */
214 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
215 return (0);
216
217 /*
218 * Only used for autonegotiation.
219 */
220 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
221 break;
222
223 /*
224 * This PHY's autonegotiation doesn't need to be kicked.
225 */
226 break;
227 }
228
229 /* Update the media status. */
230 qsphy_status(sc);
231
232 /* Callback if something changed. */
46ad174e 233 mii_phy_update(sc, cmd);
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234 return (0);
235}
236
46ad174e 237static void
c436375a 238qsphy_status(struct mii_softc *sc)
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239{
240 struct mii_data *mii = sc->mii_pdata;
241 int bmsr, bmcr, pctl;
242
243 mii->mii_media_status = IFM_AVALID;
244 mii->mii_media_active = IFM_ETHER;
245
246 bmsr = PHY_READ(sc, MII_BMSR) |
247 PHY_READ(sc, MII_BMSR);
248 if (bmsr & BMSR_LINK)
249 mii->mii_media_status |= IFM_ACTIVE;
250
251 bmcr = PHY_READ(sc, MII_BMCR);
252 if (bmcr & BMCR_ISO) {
253 mii->mii_media_active |= IFM_NONE;
254 mii->mii_media_status = 0;
255 return;
256 }
257
258 if (bmcr & BMCR_LOOP)
259 mii->mii_media_active |= IFM_LOOP;
260
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261 if (bmcr & BMCR_AUTOEN) {
262 if ((bmsr & BMSR_ACOMP) == 0) {
263 /* Erg, still trying, I guess... */
264 mii->mii_media_active |= IFM_NONE;
265 return;
266 }
267
268 pctl = PHY_READ(sc, MII_QSPHY_PCTL);
269 switch (pctl & PCTL_OPMASK) {
270 case PCTL_10_T:
271 mii->mii_media_active |= IFM_10_T;
272 break;
273 case PCTL_10_T_FDX:
274 mii->mii_media_active |= IFM_10_T|IFM_FDX;
275 break;
276 case PCTL_100_TX:
277 mii->mii_media_active |= IFM_100_TX;
278 break;
279 case PCTL_100_TX_FDX:
280 mii->mii_media_active |= IFM_100_TX|IFM_FDX;
281 break;
282 case PCTL_100_T4:
283 mii->mii_media_active |= IFM_100_T4;
284 break;
285 case PCTL_AN:
286 mii->mii_media_active |= IFM_NONE;
287 break;
288 default:
289 /* Erg... this shouldn't happen. */
290 mii->mii_media_active |= IFM_NONE;
291 break;
292 }
293 } else {
294 mii->mii_media_active = mii->mii_media.ifm_cur->ifm_media;
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295 }
296}
297
46ad174e 298static void
c436375a 299qsphy_reset(struct mii_softc *sc)
984263bc 300{
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301 mii_phy_reset(sc);
302 PHY_WRITE(sc, MII_QSPHY_IMASK, 0);
303}