if_an_pccard.c revision 55992 
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 * $FreeBSD: head/sys/dev/an/if_an_pccard.c 55992 2000-01-14 20:41:03Z wpaul $
33 */
34
35/*
36 * Aironet 4500/4800 802.11 PCMCIA/ISA/PCI driver for FreeBSD.
37 *
38 * Written by Bill Paul <wpaul@ctr.columbia.edu>
39 * Electrical Engineering Department
40 * Columbia University, New York City
41 */
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 <machine/resource.h>
59
60#include <net/if.h>
61#include <net/if_arp.h>
62#include <net/ethernet.h>
63#include <net/if_dl.h>
64#include <net/if_types.h>
65
66#include <dev/an/if_aironet_ieee.h>
67#include <dev/an/if_anreg.h>
68
69/*
70 * Support for PCMCIA cards.
71 */
72static int  an_pccard_probe(device_t);
73static int  an_pccard_attach(device_t);
74static int  an_pccard_detach(device_t);
75
76static device_method_t an_pccard_methods[] = {
77	/* Device interface */
78	DEVMETHOD(device_probe,		an_pccard_probe),
79	DEVMETHOD(device_attach,	an_pccard_attach),
80	DEVMETHOD(device_detach,	an_pccard_detach),
81	DEVMETHOD(device_shutdown,	an_shutdown),
82
83	{ 0, 0 }
84};
85
86static driver_t an_pccard_driver = {
87	"an",
88	an_pccard_methods,
89	sizeof(struct an_softc)
90};
91
92static devclass_t an_pccard_devclass;
93
94DRIVER_MODULE(if_an, pccard, an_pccard_driver, an_pccard_devclass, 0, 0);
95
96static int
97an_pccard_detach(device_t dev)
98{
99	struct an_softc		*sc = device_get_softc(dev);
100	struct ifnet		*ifp = &sc->arpcom.ac_if;
101
102	if (sc->an_gone) {
103		device_printf(dev,"already unloaded\n");
104		return(0);
105	}
106	an_stop(sc);
107	ifp->if_flags &= ~IFF_RUNNING;
108	if_detach(ifp);
109	sc->an_gone = 1;
110	bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
111	an_release_resources(dev);
112	device_printf(dev,"unloaded\n");
113	return (0);
114}
115
116static int
117an_pccard_probe(device_t dev)
118{
119	int     error;
120
121	error = an_probe(dev); /* 0 is failure for now */
122	if (error != 0) {
123		device_set_desc(dev, "Aironet PC4500/PC4800");
124		error = an_alloc_irq(dev, 0, 0);
125	} else
126	        error = 1;
127	an_release_resources(dev);
128	return (error);
129}
130
131
132static int
133an_pccard_attach(device_t dev)
134{
135	struct an_softc *sc = device_get_softc(dev);
136	int flags = device_get_flags(dev);
137	int error;
138
139	an_alloc_port(dev, sc->port_rid, AN_IOSIZ);
140	an_alloc_irq(dev, sc->irq_rid, 0);
141
142	error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET,
143			       an_intr, sc, &sc->irq_handle);
144	if (error) {
145		printf("setup intr failed %d \n", error);
146		an_release_resources(dev);
147		return (error);
148	}
149
150	sc->an_bhandle = rman_get_bushandle(sc->port_res);
151	sc->an_btag = rman_get_bustag(sc->port_res);
152
153	error = an_attach(sc, device_get_unit(dev), flags);
154	return (error);
155}
156
157