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 *
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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 */
61static int snc_pccard_probe(device_t);
62static int snc_pccard_attach(device_t);
63static int snc_pccard_detach(device_t);
64
65
66static 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
75static driver_t snc_pccard_driver = {
76 "snc",
77 snc_pccard_methods,
78 sizeof(struct snc_softc)
79};
80
81DRIVER_MODULE(snc, pccard, snc_pccard_driver, snc_devclass, 0, 0);
82MODULE_DEPEND(snc, ether, 1, 1, 1);
83MODULE_DEPEND(snc, pccard, 1, 1, 1);
84
85/*
86 * snc_pccard_detach - unload the driver and clear the table.
87 * XXX TODO:
88 * This is usually called when the card is ejected, but
89 * can be caused by a modunload of a controller driver.
90 * The idea is to reset the driver's view of the device
91 * and ensure that any driver entry points such as
92 * read and write do not hang.
93 */
94static int
95snc_pccard_detach(device_t dev)
96{
97 struct snc_softc *sc = device_get_softc(dev);
98 struct ifnet *ifp = &sc->sc_if;
99
100 if (sc->gone) {
101 device_printf(dev, "already unloaded\n");
102 return (0);
103 }
104 sncshutdown(sc);
105 ifp->if_flags &= ~IFF_RUNNING;
106 if_detach(ifp);
107 sc->gone = 1;
108 bus_teardown_intr(dev, sc->irq, sc->irq_handle);
109 snc_release_resources(dev);
110 return (0);
111}
112
113/*
114 * Probe framework for pccards. Replicates the standard framework,
115 * minus the pccard driver registration and ignores the ether address
116 * supplied (from the CIS), relying on the probe to find it instead.
117 */
118static int
119snc_pccard_probe(device_t dev)
120{
121 int error;
122
123 error = snc_alloc_port(dev, 0);
124 error = max(error, snc_alloc_memory(dev, 0));
125 error = max(error, snc_alloc_irq(dev, 0, 0));
126
127 if (!error && !snc_probe(dev, SNEC_TYPE_PNP))
128 error = ENOENT;
129
130 snc_release_resources(dev);
131 return (error);
132}
133
134static int
135snc_pccard_attach(device_t dev)
136{
137 struct snc_softc *sc = device_get_softc(dev);
138 int error;
139
140 bzero(sc, sizeof(struct snc_softc));
141
142 snc_alloc_port(dev, 0);
143 snc_alloc_memory(dev, 0);
144 snc_alloc_irq(dev, 0, 0);
145
146 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
147 sncintr, sc, &sc->irq_handle);
148 if (error) {
149 printf("snc_isa_attach: bus_setup_intr() failed\n");
150 snc_release_resources(dev);
151 return (error);
152 }
153
154 /* This interface is always enabled. */
155 sc->sc_enabled = 1;
156
157 /* pccard_get_ether(dev, ether_addr); */
158
159 return snc_attach(dev);
160}
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