if_an_pccard.c revision 119418 
1/*
2 * Copyright (c) 1997, 1998, 1999
3 *	Bill Paul <wpaul@ctr.columbia.edu>.  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, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 */
32/*
33 * Aironet 4500/4800 802.11 PCMCIA/ISA/PCI driver for FreeBSD.
34 *
35 * Written by Bill Paul <wpaul@ctr.columbia.edu>
36 * Electrical Engineering Department
37 * Columbia University, New York City
38 */
39
40#include <sys/cdefs.h>
41__FBSDID("$FreeBSD: head/sys/dev/an/if_an_pccard.c 119418 2003-08-24 17:55:58Z obrien $");
42
43#include "opt_inet.h"
44
45#ifdef INET
46#define ANCACHE
47#endif
48
49#include <sys/param.h>
50#include <sys/systm.h>
51#include <sys/socket.h>
52#include <sys/kernel.h>
53
54#include <sys/module.h>
55#include <sys/bus.h>
56#include <machine/bus.h>
57#include <sys/rman.h>
58#include <sys/lock.h>
59#include <sys/mutex.h>
60#include <machine/resource.h>
61
62#include <net/if.h>
63#include <net/if_arp.h>
64#include <net/ethernet.h>
65#include <net/if_dl.h>
66#include <net/if_types.h>
67#include <net/if_media.h>
68
69#include <dev/pccard/pccardvar.h>
70#include <dev/pccard/pccarddevs.h>
71#include "card_if.h"
72
73#include <dev/an/if_aironet_ieee.h>
74#include <dev/an/if_anreg.h>
75
76/*
77 * Support for PCMCIA cards.
78 */
79static int  an_pccard_match(device_t);
80static int  an_pccard_probe(device_t);
81static int  an_pccard_attach(device_t);
82static int  an_pccard_detach(device_t);
83
84static device_method_t an_pccard_methods[] = {
85	/* Device interface */
86	DEVMETHOD(device_probe,		pccard_compat_probe),
87	DEVMETHOD(device_attach,	pccard_compat_attach),
88	DEVMETHOD(device_detach,	an_pccard_detach),
89	DEVMETHOD(device_shutdown,	an_shutdown),
90
91	/* Card interface */
92	DEVMETHOD(card_compat_match, 	an_pccard_match),
93	DEVMETHOD(card_compat_probe,	an_pccard_probe),
94	DEVMETHOD(card_compat_attach,	an_pccard_attach),
95
96	{ 0, 0 }
97};
98
99static driver_t an_pccard_driver = {
100	"an",
101	an_pccard_methods,
102	sizeof(struct an_softc)
103};
104
105static devclass_t an_pccard_devclass;
106
107DRIVER_MODULE(an, pccard, an_pccard_driver, an_pccard_devclass, 0, 0);
108MODULE_DEPEND(an, wlan, 1, 1, 1);
109MODULE_DEPEND(an, pccard, 1, 1, 1);
110
111static const struct pccard_product an_pccard_products[] = {
112	PCMCIA_CARD(AIRONET, PC4800, 0),
113	PCMCIA_CARD(AIRONET, PC4500, 0),
114	PCMCIA_CARD(AIRONET, 350, 0),
115	{ NULL }
116};
117
118static int
119an_pccard_match(device_t dev)
120{
121	const struct pccard_product *pp;
122
123	if ((pp = pccard_product_lookup(dev, an_pccard_products,
124	    sizeof(an_pccard_products[0]), NULL)) != NULL) {
125		if (pp->pp_name != NULL)
126			device_set_desc(dev, pp->pp_name);
127		return (0);
128	}
129	return (ENXIO);
130}
131
132static int
133an_pccard_detach(device_t dev)
134{
135	struct an_softc		*sc = device_get_softc(dev);
136	struct ifnet		*ifp = &sc->arpcom.ac_if;
137
138	if (sc->an_gone) {
139		device_printf(dev,"already unloaded\n");
140		return(0);
141	}
142	an_stop(sc);
143	ifmedia_removeall(&sc->an_ifmedia);
144	ifp->if_flags &= ~IFF_RUNNING;
145	ether_ifdetach(ifp);
146	sc->an_gone = 1;
147	bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
148	an_release_resources(dev);
149	mtx_destroy(&sc->an_mtx);
150	return (0);
151}
152
153static int
154an_pccard_probe(device_t dev)
155{
156	int     error;
157
158	error = an_probe(dev); /* 0 is failure for now */
159	if (error != 0) {
160		device_set_desc(dev, "Aironet PC4500/PC4800");
161		error = an_alloc_irq(dev, 0, 0);
162	} else
163	        error = 1;
164	an_release_resources(dev);
165	return (error);
166}
167
168
169static int
170an_pccard_attach(device_t dev)
171{
172	struct an_softc *sc = device_get_softc(dev);
173	int flags = device_get_flags(dev);
174	int error;
175
176	an_alloc_port(dev, sc->port_rid, AN_IOSIZ);
177	an_alloc_irq(dev, sc->irq_rid, 0);
178
179	sc->an_bhandle = rman_get_bushandle(sc->port_res);
180	sc->an_btag = rman_get_bustag(sc->port_res);
181	sc->an_dev = dev;
182
183	error = an_attach(sc, device_get_unit(dev), flags);
184	if (error) {
185		goto fail;
186	}
187
188	/*
189	 * Must setup the interrupt after the an_attach to prevent racing.
190	 */
191	error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET,
192			       an_intr, sc, &sc->irq_handle);
193	if (error) {
194		goto fail;
195	}
196
197fail:
198	if (error)
199		an_release_resources(dev);
200	return (error);
201}
202