39723ab055df5ca7fcee362db0ee6e5b71fd7078
[dragonfly.git] / sys / dev / netif / ex / if_ex_pccard.c
1 /*-
2  * Copyright (c) 2000 Mitsuru IWASAKI
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, 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  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  *      $FreeBSD: src/sys/dev/ex/if_ex_pccard.c,v 1.2.2.1 2001/03/05 05:33:20 imp Exp $
27  *      $DragonFly: src/sys/dev/netif/ex/if_ex_pccard.c,v 1.15 2008/05/14 11:59:19 sephe Exp $
28  */
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/interrupt.h>
34 #include <sys/socket.h>
35 #include <sys/module.h>
36 #include <sys/bus.h>
37 #include <sys/rman.h>
38 #include <sys/serialize.h>
39
40 #include <net/if.h>
41 #include <net/if_arp.h>
42 #include <net/if_media.h> 
43
44
45 #include "if_exreg.h"
46 #include "if_exvar.h"
47
48 #include <bus/pccard/pccardvar.h>
49 #include <bus/pccard/pccarddevs.h>
50
51 static const struct pccard_product ex_pccard_products[] = {
52         PCMCIA_CARD(OLICOM, OC2220, 0),
53         { NULL }
54 };
55
56 /* Bus Front End Functions */
57 static int      ex_pccard_match         (device_t);
58 static int      ex_pccard_probe         (device_t);
59 static int      ex_pccard_attach        (device_t);
60 static int      ex_pccard_detach        (device_t);
61
62 static device_method_t ex_pccard_methods[] = {
63         /* Device interface */
64         DEVMETHOD(device_probe,         pccard_compat_probe),
65         DEVMETHOD(device_attach,        pccard_compat_attach),
66         DEVMETHOD(device_detach,        ex_pccard_detach),
67
68         /* Card interface */
69         DEVMETHOD(card_compat_match,    ex_pccard_match),
70         DEVMETHOD(card_compat_probe,    ex_pccard_probe),
71         DEVMETHOD(card_compat_attach,   ex_pccard_attach),
72
73         { 0, 0 }
74 };
75
76 static driver_t ex_pccard_driver = {
77         "ex",
78         ex_pccard_methods,
79         sizeof(struct ex_softc),
80 };
81
82 extern devclass_t ex_devclass;
83
84 DRIVER_MODULE(if_ex, pccard, ex_pccard_driver, ex_devclass, 0, 0);
85
86 static int
87 ex_pccard_match(device_t dev)
88 {
89         const struct pccard_product *pp;
90
91         if ((pp = pccard_product_lookup(dev, ex_pccard_products,
92             sizeof(ex_pccard_products[0]), NULL)) != NULL) {
93                 if (pp->pp_name != NULL)
94                         device_set_desc(dev, pp->pp_name);
95                 return 0;
96         }
97         return EIO;
98 }
99
100 static int
101 ex_pccard_probe(device_t dev)
102 {
103         u_int           iobase;
104         u_int           irq;
105
106         iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
107         if (!iobase) {
108                 kprintf("ex: no iobase?\n");
109                 return(ENXIO);
110         }
111
112         if (bootverbose)
113                 kprintf("ex: ex_pccard_probe() found card at 0x%03x\n", iobase);
114
115         irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
116
117         if (irq == 0) {
118                 kprintf("ex: invalid IRQ.\n");
119                 return(ENXIO);
120         }
121
122         return(0);
123 }
124
125 static int
126 ex_pccard_attach(device_t dev)
127 {
128         struct ex_softc *       sc = device_get_softc(dev);
129         struct ifnet *          ifp = &sc->arpcom.ac_if;
130         int                     error = 0;
131         int                     i;
132         uint8_t                 sum;
133         const uint8_t   *       ether_addr;
134
135         sc->dev = dev;
136         sc->ioport_rid = 0;
137         sc->irq_rid = 0;
138
139         if ((error = ex_alloc_resources(dev)) != 0) {
140                 device_printf(dev, "ex_alloc_resources() failed!\n");
141                 goto bad;
142         }
143
144         /*
145          * Fill in several fields of the softc structure:
146          *      - I/O base address.
147          *      - Hardware Ethernet address.
148          *      - IRQ number.
149          */
150         sc->iobase = rman_get_start(sc->ioport);
151         sc->irq_no = rman_get_start(sc->irq);
152
153         ether_addr = pccard_get_ether(dev);
154         for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
155                 sum |= ether_addr[i];
156         if (sum)
157                 bcopy(ether_addr, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
158
159         if ((error = ex_attach(dev)) != 0) {
160                 device_printf(dev, "ex_attach() failed!\n");
161                 goto bad;
162         }
163
164         error = bus_setup_intr(dev, sc->irq, INTR_NETSAFE,
165                                 ex_intr, (void *)sc, &sc->ih, 
166                                 ifp->if_serializer);
167         if (error) {
168                 device_printf(dev, "bus_setup_intr() failed!\n");
169                 goto bad;
170         }
171
172         ifp->if_cpuid = ithread_cpuid(rman_get_start(sc->irq));
173         KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
174
175         return(0);
176 bad:
177         ex_release_resources(dev);
178         return (error);
179 }
180
181 static int
182 ex_pccard_detach(device_t dev)
183 {
184         struct ex_softc         *sc = device_get_softc(dev);
185         struct ifnet            *ifp = &sc->arpcom.ac_if;
186
187         lwkt_serialize_enter(ifp->if_serializer);
188         ex_stop(sc);
189         ifp->if_flags &= ~IFF_RUNNING;
190         lwkt_serialize_exit(ifp->if_serializer);
191
192         ether_ifdetach(ifp);
193         ex_release_resources(dev);
194         return (0);
195 }