if_snc_pccard.c revision 181393 
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 181393 2008-08-07 20:55:20Z imp $");
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/ethernet.h>
50#include <net/if.h>
51#include <net/if_arp.h>
52#include <net/if_media.h>
53
54#include <dev/snc/dp83932var.h>
55#include <dev/snc/if_sncvar.h>
56#include <dev/snc/if_sncreg.h>
57
58#include <dev/pccard/pccardvar.h>
59#include <dev/pccard/pccard_cis.h>
60#include "pccarddevs.h"
61
62static const struct pccard_product snc_pccard_products[] = {
63	PCMCIA_CARD(NEC, PC9801N_J02),
64	PCMCIA_CARD(NEC, PC9801N_J02R),
65	{ NULL }
66};
67
68/*
69 *      PC Card (PCMCIA) specific code.
70 */
71static int	snc_pccard_probe(device_t);
72static int	snc_pccard_attach(device_t);
73static int	snc_pccard_detach(device_t);
74
75
76static device_method_t snc_pccard_methods[] = {
77	/* Device interface */
78	DEVMETHOD(device_probe,		snc_pccard_probe),
79	DEVMETHOD(device_attach,	snc_pccard_attach),
80	DEVMETHOD(device_detach,	snc_pccard_detach),
81
82	{ 0, 0 }
83};
84
85static driver_t snc_pccard_driver = {
86	"snc",
87	snc_pccard_methods,
88	sizeof(struct snc_softc)
89};
90
91DRIVER_MODULE(snc, pccard, snc_pccard_driver, snc_devclass, 0, 0);
92MODULE_DEPEND(snc, ether, 1, 1, 1);
93
94/*
95 *      snc_pccard_detach - detach this instance from the device.
96 */
97static int
98snc_pccard_detach(device_t dev)
99{
100	struct snc_softc *sc = device_get_softc(dev);
101	struct ifnet *ifp = sc->sc_ifp;
102
103	if (sc->gone) {
104		device_printf(dev, "already unloaded\n");
105		return (0);
106	}
107	SNC_LOCK(sc);
108	sncshutdown(sc);
109	SNC_UNLOCK(sc);
110	callout_drain(&sc->sc_timer);
111	ether_ifdetach(ifp);
112	sc->gone = 1;
113	bus_teardown_intr(dev, sc->irq, sc->irq_handle);
114	snc_release_resources(dev);
115	mtx_destroy(&sc->sc_lock);
116	return (0);
117}
118
119/*
120 * Probe the pccard.
121 */
122static int
123snc_pccard_probe(device_t dev)
124{
125	const struct pccard_product *pp;
126
127	if ((pp = pccard_product_lookup(dev, snc_pccard_products,
128	    sizeof(snc_pccard_products[0]), NULL)) == NULL)
129		return (EIO);
130	if (pp->pp_name != NULL)
131		device_set_desc(dev, pp->pp_name);
132	return (0);
133}
134
135static int
136snc_pccard_attach(device_t dev)
137{
138	struct snc_softc *sc = device_get_softc(dev);
139	int error;
140
141	/*
142	 * Not sure that this belongs here or in snc_pccard_attach
143	 */
144	if ((error = snc_alloc_port(dev, 0)) != 0)
145		goto err;
146	if ((error = snc_alloc_memory(dev, 0)) != 0)
147		goto err;
148	if ((error = snc_alloc_irq(dev, 0, 0)) != 0)
149		goto err;
150	if ((error = snc_probe(dev, SNEC_TYPE_PNP)) != 0)
151		goto err;
152	/* This interface is always enabled. */
153	sc->sc_enabled = 1;
154	/* pccard_get_ether(dev, ether_addr); */
155	if ((error = snc_attach(dev)) != 0)
156		goto err;
157	return 0;
158err:;
159	snc_release_resources(dev);
160	return error;
161}
162