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 #include <sys/cdefs.h>
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/socket.h>
32 #include <sys/bus.h>
33 #include <sys/kernel.h>
34 #include <sys/module.h>
35 #include <machine/bus.h>
36 #include <machine/resource.h>
37 #include <sys/rman.h>
38 #include <sys/malloc.h>
39
40 #include <net/if.h>
41 #include <net/ethernet.h>
42 #include <net/if_arp.h>
43
44 #include <dev/pci/pcivar.h>
45 #include <dev/pci/pcireg.h>
46
47 #include <dev/sbni/if_sbnireg.h>
48 #include <dev/sbni/if_sbnivar.h>
49
50 static int sbni_pci_probe(device_t);
51 static int sbni_pci_attach(device_t);
52 static int sbni_pci_detach(device_t);
53
54 static device_method_t sbni_pci_methods[] = {
55 /* Device interface */
56 DEVMETHOD(device_probe, sbni_pci_probe),
57 DEVMETHOD(device_attach, sbni_pci_attach),
58 DEVMETHOD(device_detach, sbni_pci_detach),
59 { 0, 0 }
60 };
61
62 static driver_t sbni_pci_driver = {
63 "sbni",
64 sbni_pci_methods,
65 sizeof(struct sbni_softc)
66 };
67
68 DRIVER_MODULE(sbni, pci, sbni_pci_driver, 0, 0);
69 MODULE_DEPEND(sbni, pci, 1, 1, 1);
70
71 static int
sbni_pci_probe(device_t dev)72 sbni_pci_probe(device_t dev)
73 {
74 struct sbni_softc *sc;
75
76 if (pci_get_vendor(dev) != SBNI_PCI_VENDOR ||
77 pci_get_device(dev) != SBNI_PCI_DEVICE)
78 return (ENXIO);
79
80 sc = device_get_softc(dev);
81 if (pci_get_subdevice(dev) == 2) {
82 sc->slave_sc = malloc(sizeof(struct sbni_softc),
83 M_DEVBUF, M_NOWAIT | M_ZERO);
84 if (!sc->slave_sc)
85 return (ENOMEM);
86 device_set_desc(dev, "Granch SBNI12/PCI Dual adapter");
87 } else
88 device_set_desc(dev, "Granch SBNI12/PCI adapter");
89
90 sc->io_rid = PCIR_BAR(0);
91 sc->io_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
92 &sc->io_rid, RF_ACTIVE);
93 if (!sc->io_res) {
94 device_printf(dev, "cannot allocate io ports!\n");
95 if (sc->slave_sc)
96 free(sc->slave_sc, M_DEVBUF);
97 return (ENOENT);
98 }
99
100 if (sc->slave_sc) {
101 sc->slave_sc->io_res = sc->io_res;
102 sc->slave_sc->io_off = 4;
103 }
104 if (sbni_probe(sc) != 0) {
105 sbni_release_resources(sc);
106 if (sc->slave_sc)
107 free(sc->slave_sc, M_DEVBUF);
108 return (ENXIO);
109 }
110
111 return (0);
112 }
113
114 static int
sbni_pci_attach(device_t dev)115 sbni_pci_attach(device_t dev)
116 {
117 struct sbni_softc *sc;
118 struct sbni_flags flags;
119 int error;
120
121 sc = device_get_softc(dev);
122 sc->dev = dev;
123
124 sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
125 RF_SHAREABLE);
126
127 if (sc->irq_res == NULL) {
128 device_printf(dev, "cannot claim irq!\n");
129 error = ENOENT;
130 goto attach_failed;
131 }
132
133 memset(&flags, 0, sizeof(flags));
134
135 sbni_attach(sc, device_get_unit(dev) * 2, flags);
136 if (sc->slave_sc)
137 sbni_attach(sc->slave_sc, device_get_unit(dev) * 2 + 1, flags);
138
139 if (sc->irq_res) {
140 error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET |
141 INTR_MPSAFE, NULL, sbni_intr, sc, &sc->irq_handle);
142 if (error) {
143 device_printf(dev, "bus_setup_intr\n");
144 sbni_detach(sc);
145 if (sc->slave_sc)
146 sbni_detach(sc);
147 goto attach_failed;
148 }
149 }
150 return (0);
151
152 attach_failed:
153 sbni_release_resources(sc);
154 if (sc->slave_sc)
155 free(sc->slave_sc, M_DEVBUF);
156 return (error);
157 }
158
159 static int
sbni_pci_detach(device_t dev)160 sbni_pci_detach(device_t dev)
161 {
162 struct sbni_softc *sc;
163
164 sc = device_get_softc(dev);
165 sbni_detach(sc);
166 if (sc->slave_sc)
167 sbni_detach(sc);
168
169 sbni_release_resources(sc);
170 if (sc->slave_sc)
171 free(sc->slave_sc, M_DEVBUF);
172 return (0);
173 }
174