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 * SPDX-License-Identifier: BSD-2-Clause
6 *
7 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
8 * All rights reserved.
9 *
10 * This code is derived from software contributed to The NetBSD Foundation
11 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
12 * NASA Ames Research Center.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35
36 /*-
37 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 * 1. Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * 2. Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in the
46 * documentation and/or other materials provided with the distribution.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
49 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
50 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
51 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
52 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
53 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
54 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
55 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
56 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
57 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
58 */
59
60 #include <sys/cdefs.h>
61 /*
62 * driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY
63 * datasheet from www.qualitysemi.com
64 */
65
66 #include <sys/param.h>
67 #include <sys/systm.h>
68 #include <sys/kernel.h>
69 #include <sys/socket.h>
70 #include <sys/errno.h>
71 #include <sys/module.h>
72 #include <sys/bus.h>
73
74 #include <net/if.h>
75 #include <net/if_media.h>
76
77 #include <dev/mii/mii.h>
78 #include <dev/mii/miivar.h>
79 #include "miidevs.h"
80
81 #include <dev/mii/qsphyreg.h>
82
83 #include "miibus_if.h"
84
85 static int qsphy_probe(device_t);
86 static int qsphy_attach(device_t);
87
88 static device_method_t qsphy_methods[] = {
89 /* device interface */
90 DEVMETHOD(device_probe, qsphy_probe),
91 DEVMETHOD(device_attach, qsphy_attach),
92 DEVMETHOD(device_detach, mii_phy_detach),
93 DEVMETHOD(device_shutdown, bus_generic_shutdown),
94 DEVMETHOD_END
95 };
96
97 static driver_t qsphy_driver = {
98 "qsphy",
99 qsphy_methods,
100 sizeof(struct mii_softc)
101 };
102
103 DRIVER_MODULE(qsphy, miibus, qsphy_driver, 0, 0);
104
105 static int qsphy_service(struct mii_softc *, struct mii_data *, int);
106 static void qsphy_reset(struct mii_softc *);
107 static void qsphy_status(struct mii_softc *);
108
109 static const struct mii_phydesc qsphys[] = {
110 MII_PHY_DESC(xxQUALSEMI, QS6612),
111 MII_PHY_END
112 };
113
114 static const struct mii_phy_funcs qsphy_funcs = {
115 qsphy_service,
116 qsphy_status,
117 qsphy_reset
118 };
119
120 static int
qsphy_probe(device_t dev)121 qsphy_probe(device_t dev)
122 {
123
124 return (mii_phy_dev_probe(dev, qsphys, BUS_PROBE_DEFAULT));
125 }
126
127 static int
qsphy_attach(device_t dev)128 qsphy_attach(device_t dev)
129 {
130
131 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &qsphy_funcs, 1);
132 return (0);
133 }
134
135 static int
qsphy_service(struct mii_softc * sc,struct mii_data * mii,int cmd)136 qsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
137 {
138
139 switch (cmd) {
140 case MII_POLLSTAT:
141 break;
142
143 case MII_MEDIACHG:
144 mii_phy_setmedia(sc);
145 break;
146
147 case MII_TICK:
148 /*
149 * This PHY's autonegotiation doesn't need to be kicked.
150 */
151 break;
152 }
153
154 /* Update the media status. */
155 PHY_STATUS(sc);
156
157 /* Callback if something changed. */
158 mii_phy_update(sc, cmd);
159 return (0);
160 }
161
162 static void
qsphy_status(struct mii_softc * sc)163 qsphy_status(struct mii_softc *sc)
164 {
165 struct mii_data *mii = sc->mii_pdata;
166 int bmsr, bmcr, pctl;
167
168 mii->mii_media_status = IFM_AVALID;
169 mii->mii_media_active = IFM_ETHER;
170
171 bmsr = PHY_READ(sc, MII_BMSR) |
172 PHY_READ(sc, MII_BMSR);
173 if (bmsr & BMSR_LINK)
174 mii->mii_media_status |= IFM_ACTIVE;
175
176 bmcr = PHY_READ(sc, MII_BMCR);
177 if (bmcr & BMCR_ISO) {
178 mii->mii_media_active |= IFM_NONE;
179 mii->mii_media_status = 0;
180 return;
181 }
182
183 if (bmcr & BMCR_LOOP)
184 mii->mii_media_active |= IFM_LOOP;
185
186 pctl = PHY_READ(sc, MII_QSPHY_PCTL);
187 switch (pctl & PCTL_OPMASK) {
188 case PCTL_10_T:
189 mii->mii_media_active |= IFM_10_T|IFM_HDX;
190 break;
191 case PCTL_10_T_FDX:
192 mii->mii_media_active |= IFM_10_T|IFM_FDX;
193 break;
194 case PCTL_100_TX:
195 mii->mii_media_active |= IFM_100_TX|IFM_HDX;
196 break;
197 case PCTL_100_TX_FDX:
198 mii->mii_media_active |= IFM_100_TX|IFM_FDX;
199 break;
200 case PCTL_100_T4:
201 mii->mii_media_active |= IFM_100_T4|IFM_HDX;
202 break;
203 case PCTL_AN:
204 mii->mii_media_active |= IFM_NONE;
205 break;
206 default:
207 /* Erg... this shouldn't happen. */
208 mii->mii_media_active |= IFM_NONE;
209 break;
210 }
211 if ((mii->mii_media_active & IFM_FDX) != 0)
212 mii->mii_media_active |= mii_phy_flowstatus(sc);
213 }
214
215 static void
qsphy_reset(struct mii_softc * sc)216 qsphy_reset(struct mii_softc *sc)
217 {
218
219 mii_phy_reset(sc);
220 PHY_WRITE(sc, MII_QSPHY_IMASK, 0);
221 }
222