xref: /freebsd/sys/dev/sbni/if_sbni_isa.c (revision a0b9e2e854027e6ff61fb075a1309dbc71c42b54)
1 /*-
2  * Copyright (c) 1997-2001 Granch, Ltd. All rights reserved.
3  * Author: Denis I.Timofeev <timofeev@granch.ru>
4  *
5  * Redistributon 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 NEIGENCE 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 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/socket.h>
35 
36 #include <sys/bus.h>
37 #include <sys/kernel.h>
38 #include <sys/module.h>
39 #include <machine/bus.h>
40 #include <machine/resource.h>
41 #include <sys/rman.h>
42 
43 #include <net/if.h>
44 #include <net/if_var.h>
45 #include <net/ethernet.h>
46 
47 #include <isa/isavar.h>
48 
49 #include <dev/sbni/if_sbnireg.h>
50 #include <dev/sbni/if_sbnivar.h>
51 
52 static int	sbni_probe_isa(device_t);
53 static int	sbni_attach_isa(device_t);
54 
55 static device_method_t sbni_isa_methods[] = {
56 	/* Device interface */
57 	DEVMETHOD(device_probe,	sbni_probe_isa),
58 	DEVMETHOD(device_attach, sbni_attach_isa),
59 	{ 0, 0 }
60 };
61 
62 static driver_t sbni_isa_driver = {
63 	"sbni",
64 	sbni_isa_methods,
65 	sizeof(struct sbni_softc)
66 };
67 
68 static devclass_t sbni_isa_devclass;
69 static struct isa_pnp_id  sbni_ids[] = {
70 	{ 0, NULL }	/* we have no pnp sbni cards atm.  */
71 };
72 
73 static int
74 sbni_probe_isa(device_t dev)
75 {
76 	struct sbni_softc *sc;
77 	int error;
78 
79 	error = ISA_PNP_PROBE(device_get_parent(dev), dev, sbni_ids);
80 	if (error && error != ENOENT)
81 		return (error);
82 
83 	sc = device_get_softc(dev);
84 
85  	sc->io_res = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT,
86  						 &sc->io_rid, SBNI_PORTS,
87  						 RF_ACTIVE);
88 	if (!sc->io_res) {
89 		printf("sbni: cannot allocate io ports!\n");
90 		return (ENOENT);
91 	}
92 
93 	if (sbni_probe(sc) != 0) {
94 		sbni_release_resources(sc);
95 		return (ENXIO);
96 	}
97 
98 	device_set_desc(dev, "Granch SBNI12/ISA adapter");
99 	return (0);
100 }
101 
102 static int
103 sbni_attach_isa(device_t dev)
104 {
105 	struct sbni_softc *sc;
106 	struct sbni_flags flags;
107 	int error;
108 
109 	sc = device_get_softc(dev);
110 	sc->dev = dev;
111 
112 	sc->irq_res = bus_alloc_resource_any(
113 	    dev, SYS_RES_IRQ, &sc->irq_rid, RF_ACTIVE);
114 
115 #ifndef SBNI_DUAL_COMPOUND
116 
117 	if (sc->irq_res == NULL) {
118 		device_printf(dev, "irq conflict!\n");
119 		sbni_release_resources(sc);
120 		return (ENOENT);
121 	}
122 
123 #else	/* SBNI_DUAL_COMPOUND */
124 
125 	if (sc->irq_res) {
126 		sbni_add(sc);
127 	} else {
128 		struct sbni_softc  *master;
129 
130 		if ((master = connect_to_master(sc)) == NULL) {
131 			device_printf(dev, "failed to alloc irq\n");
132 			sbni_release_resources(sc);
133 			return (ENXIO);
134 		} else {
135 			device_printf(dev, "shared irq with %s\n",
136 			       master->ifp->if_xname);
137 		}
138 	}
139 #endif	/* SBNI_DUAL_COMPOUND */
140 
141 	*(u_int32_t*)&flags = device_get_flags(dev);
142 
143 	error = sbni_attach(sc, device_get_unit(dev) * 2, flags);
144 	if (error) {
145 		device_printf(dev, "cannot initialize driver\n");
146 		sbni_release_resources(sc);
147 		return (error);
148 	}
149 
150 	if (sc->irq_res) {
151 		error = bus_setup_intr(
152 		    dev, sc->irq_res, INTR_TYPE_NET | INTR_MPSAFE,
153 		    NULL, sbni_intr, sc, &sc->irq_handle);
154 		if (error) {
155 			device_printf(dev, "bus_setup_intr\n");
156 			sbni_detach(sc);
157 			sbni_release_resources(sc);
158 			return (error);
159 		}
160 	}
161 
162 	return (0);
163 }
164 
165 DRIVER_MODULE(sbni, isa, sbni_isa_driver, sbni_isa_devclass, 0, 0);
166 MODULE_DEPEND(sbni, isa, 1, 1, 1);
167 ISA_PNP_INFO(sbni_ids);
168