1 /* $NetBSD: if_ne_isa.c,v 1.27 2010/03/03 13:39:57 tsutsui Exp $ */
2
3 /*-
4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: if_ne_isa.c,v 1.27 2010/03/03 13:39:57 tsutsui Exp $");
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/mbuf.h>
39 #include <sys/socket.h>
40 #include <sys/ioctl.h>
41 #include <sys/errno.h>
42 #include <sys/syslog.h>
43 #include <sys/select.h>
44 #include <sys/device.h>
45
46 #include <net/if.h>
47 #include <net/if_dl.h>
48 #include <net/if_ether.h>
49 #include <net/if_media.h>
50
51 #include <sys/intr.h>
52 #include <sys/bus.h>
53
54 #include <dev/ic/dp8390reg.h>
55 #include <dev/ic/dp8390var.h>
56
57 #include <dev/ic/ne2000reg.h>
58 #include <dev/ic/ne2000var.h>
59
60 #include <dev/isa/isavar.h>
61
62 int ne_isa_match(device_t, cfdata_t, void *);
63 void ne_isa_attach(device_t, device_t, void *);
64
65 struct ne_isa_softc {
66 struct ne2000_softc sc_ne2000; /* real "ne2000" softc */
67
68 /* ISA-specific goo. */
69 void *sc_ih; /* interrupt cookie */
70 };
71
72 CFATTACH_DECL_NEW(ne_isa, sizeof(struct ne_isa_softc),
73 ne_isa_match, ne_isa_attach, NULL, NULL);
74
75 int
ne_isa_match(device_t parent,cfdata_t match,void * aux)76 ne_isa_match(device_t parent, cfdata_t match, void *aux)
77 {
78 struct isa_attach_args *ia = aux;
79 bus_space_tag_t nict = ia->ia_iot;
80 bus_space_handle_t nich;
81 bus_space_tag_t asict;
82 bus_space_handle_t asich;
83 int rv = 0;
84
85 if (ia->ia_nio < 1)
86 return (0);
87 if (ia->ia_nirq < 1)
88 return (0);
89
90 if (ISA_DIRECT_CONFIG(ia))
91 return (0);
92
93 /* Disallow wildcarded values. */
94 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
95 return (0);
96 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ)
97 return (0);
98
99 /* Make sure this is a valid NE[12]000 i/o address. */
100 if ((ia->ia_io[0].ir_addr & 0x1f) != 0)
101 return (0);
102
103 /* Map i/o space. */
104 if (bus_space_map(nict, ia->ia_io[0].ir_addr, NE2000_NPORTS, 0, &nich))
105 return (0);
106
107 asict = nict;
108 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
109 NE2000_ASIC_NPORTS, &asich))
110 goto out;
111
112 /* Look for an NE2000-compatible card. */
113 rv = ne2000_detect(nict, nich, asict, asich);
114
115 if (rv) {
116 ia->ia_nio = 1;
117 ia->ia_io[0].ir_size = NE2000_NPORTS;
118
119 ia->ia_nirq = 1;
120
121 ia->ia_niomem = 0;
122 ia->ia_ndrq = 0;
123 }
124
125 out:
126 bus_space_unmap(nict, nich, NE2000_NPORTS);
127 return (rv);
128 }
129
130 void
ne_isa_attach(device_t parent,device_t self,void * aux)131 ne_isa_attach(device_t parent, device_t self, void *aux)
132 {
133 struct ne_isa_softc *isc = device_private(self);
134 struct ne2000_softc *nsc = &isc->sc_ne2000;
135 struct dp8390_softc *dsc = &nsc->sc_dp8390;
136 struct isa_attach_args *ia = aux;
137 bus_space_tag_t nict = ia->ia_iot;
138 bus_space_handle_t nich;
139 bus_space_tag_t asict = nict;
140 bus_space_handle_t asich;
141 const char *typestr;
142 int netype;
143
144 dsc->sc_dev = self;
145 aprint_normal("\n");
146
147 /* Map i/o space. */
148 if (bus_space_map(nict, ia->ia_io[0].ir_addr, NE2000_NPORTS,
149 0, &nich)) {
150 aprint_error_dev(self, "can't map i/o space\n");
151 return;
152 }
153
154 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
155 NE2000_ASIC_NPORTS, &asich)) {
156 aprint_error_dev(self, "can't subregion i/o space\n");
157 return;
158 }
159
160 dsc->sc_regt = nict;
161 dsc->sc_regh = nich;
162
163 nsc->sc_asict = asict;
164 nsc->sc_asich = asich;
165
166 /*
167 * Detect it again, so we can print some information about the
168 * interface.
169 */
170 netype = ne2000_detect(nict, nich, asict, asich);
171 switch (netype) {
172 case NE2000_TYPE_NE1000:
173 typestr = "NE1000";
174 break;
175
176 case NE2000_TYPE_NE2000:
177 typestr = "NE2000";
178 break;
179
180 case NE2000_TYPE_RTL8019:
181 typestr = "NE2000 (RTL8019)";
182 break;
183
184 default:
185 aprint_error_dev(self, "where did the card go?!\n");
186 return;
187 }
188
189 aprint_normal_dev(self, "%s Ethernet\n", typestr);
190
191 /* This interface is always enabled. */
192 dsc->sc_enabled = 1;
193
194 /*
195 * Do generic NE2000 attach. This will read the station address
196 * from the EEPROM.
197 */
198 ne2000_attach(nsc, NULL);
199
200 /* Establish the interrupt handler. */
201 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
202 IST_EDGE, IPL_NET, dp8390_intr, dsc);
203 if (isc->sc_ih == NULL)
204 aprint_error_dev(self,
205 "couldn't establish interrupt handler\n");
206 }
207