xref: /freebsd/sys/dev/mii/ukphy.c (revision 924226fba12cc9a228c73b956e1b7fa24c60b055)
1 /*	$NetBSD: ukphy.c,v 1.2 1999/04/23 04:24:32 thorpej Exp $	*/
2 
3 /*-
4  * SPDX-License-Identifier: BSD-2-Clause-NetBSD
5  *
6  * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
7  * All rights reserved.
8  *
9  * This code is derived from software contributed to The NetBSD Foundation
10  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
11  * NASA Ames Research Center, and by Frank van der Linden.
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  * 1. Redistributions of source code must retain the above copyright
17  *    notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  *    notice, this list of conditions and the following disclaimer in the
20  *    documentation and/or other materials provided with the distribution.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32  * POSSIBILITY OF SUCH DAMAGE.
33  */
34 
35 /*-
36  * Copyright (c) 1997 Manuel Bouyer.  All rights reserved.
37  *
38  * Redistribution and use in source and binary forms, with or without
39  * modification, are permitted provided that the following conditions
40  * are met:
41  * 1. Redistributions of source code must retain the above copyright
42  *    notice, this list of conditions and the following disclaimer.
43  * 2. Redistributions in binary form must reproduce the above copyright
44  *    notice, this list of conditions and the following disclaimer in the
45  *    documentation and/or other materials provided with the distribution.
46  *
47  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
48  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
49  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
50  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
51  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
52  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
53  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
54  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
55  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
56  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
57  */
58 
59 #include <sys/cdefs.h>
60 __FBSDID("$FreeBSD$");
61 
62 /*
63  * driver for generic unknown PHYs
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 
80 #include "miibus_if.h"
81 
82 static int ukphy_probe(device_t);
83 static int ukphy_attach(device_t);
84 
85 static device_method_t ukphy_methods[] = {
86 	/* device interface */
87 	DEVMETHOD(device_probe,		ukphy_probe),
88 	DEVMETHOD(device_attach,	ukphy_attach),
89 	DEVMETHOD(device_detach,	mii_phy_detach),
90 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
91 	DEVMETHOD_END
92 };
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, 0, 0);
101 
102 static int	ukphy_service(struct mii_softc *, struct mii_data *, int);
103 
104 static const struct mii_phy_funcs ukphy_funcs = {
105 	ukphy_service,
106 	ukphy_status,
107 	mii_phy_reset
108 };
109 
110 static int
111 ukphy_probe(device_t dev)
112 {
113 
114 	/*
115 	 * We know something is here, so always match at a low priority.
116 	 */
117 	device_set_desc(dev, "Generic IEEE 802.3u media interface");
118 	return (BUS_PROBE_GENERIC);
119 }
120 
121 static int
122 ukphy_attach(device_t dev)
123 {
124 	struct mii_softc *sc;
125 
126 	sc = device_get_softc(dev);
127 
128 	mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &ukphy_funcs, 1);
129 	mii_phy_setmedia(sc);
130 
131 	return (0);
132 }
133 
134 static int
135 ukphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
136 {
137 
138 	switch (cmd) {
139 	case MII_POLLSTAT:
140 		break;
141 
142 	case MII_MEDIACHG:
143 		mii_phy_setmedia(sc);
144 		break;
145 
146 	case MII_TICK:
147 		if (mii_phy_tick(sc) == EJUSTRETURN)
148 			return (0);
149 		break;
150 	}
151 
152 	/* Update the media status. */
153 	PHY_STATUS(sc);
154 
155 	/* Callback if something changed. */
156 	mii_phy_update(sc, cmd);
157 	return (0);
158 }
159