if_snc_pccard.c revision 147318 
1/*-
2 * Copyright (c) 1995, David Greenman
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice unmodified, this list of conditions, and the following
10 *    disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: head/sys/dev/snc/if_snc_pccard.c 147318 2005-06-12 16:21:44Z brooks $");
31
32/*
33 *	National Semiconductor  DP8393X SONIC Driver
34 *
35 *	This is the PC-Card attachment on FreeBSD
36 *		written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp> and
37 *			   Hiroshi Yamashita <bluemoon@msj.biglobe.ne.jp>
38 */
39
40#include <sys/param.h>
41#include <sys/systm.h>
42#include <sys/socket.h>
43#include <sys/kernel.h>
44
45#include <sys/module.h>
46#include <sys/bus.h>
47#include <machine/bus.h>
48
49#include <net/if.h>
50#include <net/if_arp.h>
51#include <net/if_media.h>
52
53
54#include <dev/snc/dp83932var.h>
55#include <dev/snc/if_sncvar.h>
56#include <dev/snc/if_sncreg.h>
57
58/*
59 *      PC-Card (PCMCIA) specific code.
60 */
61static int	snc_pccard_probe(device_t);
62static int	snc_pccard_attach(device_t);
63static int	snc_pccard_detach(device_t);
64
65
66static device_method_t snc_pccard_methods[] = {
67	/* Device interface */
68	DEVMETHOD(device_probe,		snc_pccard_probe),
69	DEVMETHOD(device_attach,	snc_pccard_attach),
70	DEVMETHOD(device_detach,	snc_pccard_detach),
71
72	{ 0, 0 }
73};
74
75static driver_t snc_pccard_driver = {
76	"snc",
77	snc_pccard_methods,
78	sizeof(struct snc_softc)
79};
80
81DRIVER_MODULE(snc, pccard, snc_pccard_driver, snc_devclass, 0, 0);
82MODULE_DEPEND(snc, ether, 1, 1, 1);
83
84/*
85 *      snc_pccard_detach - detach this instance from the device.
86 */
87static int
88snc_pccard_detach(device_t dev)
89{
90	struct snc_softc *sc = device_get_softc(dev);
91	struct ifnet *ifp = sc->sc_ifp;
92
93	if (sc->gone) {
94		device_printf(dev, "already unloaded\n");
95		return (0);
96	}
97	sncshutdown(sc);
98	ifp->if_flags &= ~IFF_RUNNING;
99	if_detach(ifp);
100	sc->gone = 1;
101	bus_teardown_intr(dev, sc->irq, sc->irq_handle);
102	snc_release_resources(dev);
103	return (0);
104}
105
106/*
107 * Probe the pccard.
108 */
109static int
110snc_pccard_probe(device_t dev)
111{
112	int     error;
113
114	error = snc_alloc_port(dev, 0);
115	error = max(error, snc_alloc_memory(dev, 0));
116	error = max(error, snc_alloc_irq(dev, 0, 0));
117
118	if (!error && !snc_probe(dev, SNEC_TYPE_PNP))
119		error = ENOENT;
120
121	snc_release_resources(dev);
122	return (error);
123}
124
125static int
126snc_pccard_attach(device_t dev)
127{
128	struct snc_softc *sc = device_get_softc(dev);
129	int error;
130
131	bzero(sc, sizeof(struct snc_softc));
132
133	snc_alloc_port(dev, 0);
134	snc_alloc_memory(dev, 0);
135	snc_alloc_irq(dev, 0, 0);
136
137	error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
138			       sncintr, sc, &sc->irq_handle);
139	if (error) {
140		printf("snc_isa_attach: bus_setup_intr() failed\n");
141		snc_release_resources(dev);
142		return (error);
143	}
144
145	/* This interface is always enabled. */
146	sc->sc_enabled = 1;
147
148	/* pccard_get_ether(dev, ether_addr); */
149
150	return snc_attach(dev);
151}
152