if_cm_isa.c revision 159529 
1/*	$NetBSD: if_bah_zbus.c,v 1.6 2000/01/23 21:06:12 aymeric Exp $ */
2
3#include <sys/cdefs.h>
4__FBSDID("$FreeBSD: head/sys/dev/cm/if_cm_isa.c 159529 2006-06-11 22:25:01Z fjoe $");
5
6/*-
7 * Copyright (c) 1994, 1995, 1998 The NetBSD Foundation, Inc.
8 * All rights reserved.
9 *
10 * This code is derived from software contributed to The NetBSD Foundation
11 * by Ignatios Souvatzis.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 *    must display the following acknowledgement:
23 *        This product includes software developed by the NetBSD
24 *        Foundation, Inc. and its contributors.
25 * 4. Neither the name of The NetBSD Foundation nor the names of its
26 *    contributors may be used to endorse or promote products derived
27 *    from this software without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
30 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
31 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
32 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
33 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
36 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
37 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39 * POSSIBILITY OF SUCH DAMAGE.
40 */
41
42#include <sys/param.h>
43#include <sys/systm.h>
44#include <sys/socket.h>
45#include <sys/kernel.h>
46
47#include <sys/module.h>
48#include <sys/bus.h>
49
50#include <machine/bus.h>
51#include <sys/rman.h>
52#include <machine/resource.h>
53
54#include <net/if.h>
55#include <net/if_arc.h>
56
57#include <dev/cm/smc90cx6reg.h>
58#include <dev/cm/smc90cx6var.h>
59
60static int cm_isa_probe		(device_t);
61static int cm_isa_attach	(device_t);
62
63static int
64cm_isa_probe(dev)
65	device_t dev;
66{
67	struct cm_softc *sc = device_get_softc(dev);
68	int rid;
69
70	rid = 0;
71	sc->port_res = bus_alloc_resource(
72	    dev, SYS_RES_IOPORT, &rid, 0ul, ~0ul, CM_IO_PORTS, RF_ACTIVE);
73	if (sc->port_res == NULL)
74		return (ENOENT);
75
76	if (GETREG(CMSTAT) == 0xff) {
77		cm_release_resources(dev);
78		return (ENXIO);
79	}
80
81	rid = 0;
82	sc->mem_res = bus_alloc_resource(
83	    dev, SYS_RES_MEMORY, &rid, 0ul, ~0ul, CM_MEM_SIZE, RF_ACTIVE);
84	if (sc->mem_res == NULL) {
85		cm_release_resources(dev);
86		return (ENOENT);
87	}
88
89	rid = 0;
90	sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
91	if (sc->irq_res == NULL) {
92		cm_release_resources(dev);
93		return (ENOENT);
94	}
95
96	return (0);
97}
98
99static int
100cm_isa_attach(dev)
101	device_t dev;
102{
103	struct cm_softc *sc = device_get_softc(dev);
104	int error;
105
106	/* init mtx and setup interrupt */
107	mtx_init(&sc->sc_mtx, device_get_nameunit(dev),
108	    MTX_NETWORK_LOCK, MTX_DEF);
109	error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET | INTR_MPSAFE,
110	    cmintr, sc, &sc->irq_handle);
111	if (error)
112		goto err;
113
114	/* attach */
115	error = cm_attach(dev);
116	if (error)
117		goto err;
118
119	return 0;
120
121err:
122	mtx_destroy(&sc->sc_mtx);
123	cm_release_resources(dev);
124	return (error);
125}
126
127static int
128cm_isa_detach(device_t dev)
129{
130	struct cm_softc *sc = device_get_softc(dev);
131	struct ifnet *ifp = sc->sc_ifp;
132
133	/* stop and detach */
134	CM_LOCK(sc);
135	cm_stop_locked(sc);
136	ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
137	CM_UNLOCK(sc);
138
139	callout_drain(&sc->sc_recon_ch);
140	arc_ifdetach(ifp);
141
142	/* teardown interrupt, destroy mtx and release resources */
143	bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
144	mtx_destroy(&sc->sc_mtx);
145	if_free(ifp);
146	cm_release_resources(dev);
147
148	bus_generic_detach(dev);
149	return (0);
150}
151
152static device_method_t cm_isa_methods[] = {
153	/* Device interface */
154	DEVMETHOD(device_probe,		cm_isa_probe),
155	DEVMETHOD(device_attach,	cm_isa_attach),
156	DEVMETHOD(device_detach,	cm_isa_detach),
157
158	{ 0, 0 }
159};
160
161static driver_t cm_isa_driver = {
162	"cm",
163	cm_isa_methods,
164	sizeof(struct cm_softc)
165};
166
167DRIVER_MODULE(cm, isa, cm_isa_driver, cm_devclass, 0, 0);
168MODULE_DEPEND(cm, isa, 1, 1, 1);
169