xref: /freebsd/sys/dev/mii/ukphy.c (revision 0c21a60cf61c61c3a136a803b9c7645c128c6982)
1 /*	$NetBSD: ukphy.c,v 1.2 1999/04/23 04:24:32 thorpej Exp $	*/
2 
3 /*-
4  * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9  * NASA Ames Research Center, and by Frank van der Linden.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30  * POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 /*-
34  * Copyright (c) 1997 Manuel Bouyer.  All rights reserved.
35  *
36  * Redistribution and use in source and binary forms, with or without
37  * modification, are permitted provided that the following conditions
38  * are met:
39  * 1. Redistributions of source code must retain the above copyright
40  *    notice, this list of conditions and the following disclaimer.
41  * 2. Redistributions in binary form must reproduce the above copyright
42  *    notice, this list of conditions and the following disclaimer in the
43  *    documentation and/or other materials provided with the distribution.
44  *
45  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
46  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
48  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
49  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
50  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
51  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
52  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
53  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
54  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
55  */
56 
57 #include <sys/cdefs.h>
58 __FBSDID("$FreeBSD$");
59 
60 /*
61  * driver for generic unknown PHYs
62  */
63 
64 #include <sys/param.h>
65 #include <sys/systm.h>
66 #include <sys/kernel.h>
67 #include <sys/socket.h>
68 #include <sys/errno.h>
69 #include <sys/module.h>
70 #include <sys/bus.h>
71 
72 #include <net/if.h>
73 #include <net/if_media.h>
74 
75 #include <dev/mii/mii.h>
76 #include <dev/mii/miivar.h>
77 
78 #include "miibus_if.h"
79 
80 static int ukphy_probe(device_t);
81 static int ukphy_attach(device_t);
82 
83 static device_method_t ukphy_methods[] = {
84 	/* device interface */
85 	DEVMETHOD(device_probe,		ukphy_probe),
86 	DEVMETHOD(device_attach,	ukphy_attach),
87 	DEVMETHOD(device_detach,	mii_phy_detach),
88 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
89 	{ 0, 0 }
90 };
91 
92 static devclass_t ukphy_devclass;
93 
94 static driver_t ukphy_driver = {
95 	"ukphy",
96 	ukphy_methods,
97 	sizeof(struct mii_softc)
98 };
99 
100 DRIVER_MODULE(ukphy, miibus, ukphy_driver, ukphy_devclass, 0, 0);
101 
102 static int	ukphy_service(struct mii_softc *, struct mii_data *, int);
103 
104 static int
105 ukphy_probe(device_t dev)
106 {
107 
108 	/*
109 	 * We know something is here, so always match at a low priority.
110 	 */
111 	device_set_desc(dev, "Generic IEEE 802.3u media interface");
112 	return (BUS_PROBE_GENERIC);
113 }
114 
115 static int
116 ukphy_attach(device_t dev)
117 {
118 	struct mii_softc *sc;
119 	struct mii_attach_args *ma;
120 	struct mii_data *mii;
121 
122 	sc = device_get_softc(dev);
123 	ma = device_get_ivars(dev);
124 	sc->mii_dev = device_get_parent(dev);
125 	mii = ma->mii_data;
126 	LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
127 
128 	if (bootverbose)
129 		device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n",
130 		    MII_OUI(ma->mii_id1, ma->mii_id2),
131 		    MII_MODEL(ma->mii_id2), MII_REV(ma->mii_id2));
132 
133 	sc->mii_flags = miibus_get_flags(dev);
134 	sc->mii_inst = mii->mii_instance++;
135 	sc->mii_phy = ma->mii_phyno;
136 	sc->mii_service = ukphy_service;
137 	sc->mii_pdata = mii;
138 
139 	sc->mii_flags |= MIIF_NOMANPAUSE;
140 
141 	mii_phy_reset(sc);
142 
143 	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
144 	if (sc->mii_capabilities & BMSR_EXTSTAT)
145 		sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
146 	device_printf(dev, " ");
147 	mii_phy_add_media(sc);
148 	printf("\n");
149 
150 	MIIBUS_MEDIAINIT(sc->mii_dev);
151 	mii_phy_setmedia(sc);
152 
153 	return (0);
154 }
155 
156 static int
157 ukphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
158 {
159 
160 	switch (cmd) {
161 	case MII_POLLSTAT:
162 		break;
163 
164 	case MII_MEDIACHG:
165 		/*
166 		 * If the interface is not up, don't do anything.
167 		 */
168 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
169 			break;
170 
171 		mii_phy_setmedia(sc);
172 		break;
173 
174 	case MII_TICK:
175 		if (mii_phy_tick(sc) == EJUSTRETURN)
176 			return (0);
177 		break;
178 	}
179 
180 	/* Update the media status. */
181 	ukphy_status(sc);
182 
183 	/* Callback if something changed. */
184 	mii_phy_update(sc, cmd);
185 	return (0);
186 }
187