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Create releng/7.2 from stable/7 in preparation for 7.2-RELEASE.
[FreeBSD/releng/7.2.git] / sys / dev / snc / if_snc_pccard.c
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("$FreeBSD$");
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  */
61 static int      snc_pccard_probe(device_t);
62 static int      snc_pccard_attach(device_t);
63 static int      snc_pccard_detach(device_t);
64
65
66 static 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
75 static driver_t snc_pccard_driver = {
76         "snc",
77         snc_pccard_methods,
78         sizeof(struct snc_softc)
79 };
80
81 DRIVER_MODULE(snc, pccard, snc_pccard_driver, snc_devclass, 0, 0);
82 MODULE_DEPEND(snc, ether, 1, 1, 1);
83
84 /*
85  *      snc_pccard_detach - detach this instance from the device.
86  */
87 static int
88 snc_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_drv_flags &= ~IFF_DRV_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  */
109 static int
110 snc_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
125 static int
126 snc_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                                NULL, 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