1 /* $OpenBSD: if_ne_isa.c,v 1.19 2023/09/11 08:41:26 mvs Exp $ */
2 /* $NetBSD: if_ne_isa.c,v 1.6 1998/07/05 06:49:13 jonathan Exp $ */
3
4 /*-
5 * Copyright (c) 1997 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
10 * NASA Ames Research Center.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include "bpfilter.h"
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/device.h>
44
45 #include <net/if.h>
46 #include <net/if_media.h>
47
48 #include <netinet/in.h>
49 #include <netinet/if_ether.h>
50
51 #if NBPFILTER > 0
52 #include <net/bpf.h>
53 #endif
54
55 #include <machine/intr.h>
56 #include <machine/bus.h>
57
58 #include <dev/ic/dp8390reg.h>
59 #include <dev/ic/dp8390var.h>
60
61 #include <dev/ic/ne2000reg.h>
62 #include <dev/ic/ne2000var.h>
63
64 #include <dev/ic/rtl80x9reg.h>
65 #include <dev/ic/rtl80x9var.h>
66
67 #include <dev/isa/isavar.h>
68
69 int ne_isa_match(struct device *, void *, void *);
70 void ne_isa_attach(struct device *, struct device *, void *);
71
72 struct ne_isa_softc {
73 struct ne2000_softc sc_ne2000; /* real "ne2000" softc */
74
75 /* ISA-specific goo. */
76 void *sc_ih; /* interrupt cookie */
77 };
78
79 const struct cfattach ne_isa_ca = {
80 sizeof(struct ne_isa_softc), ne_isa_match, ne_isa_attach
81 };
82
83 int
ne_isa_match(struct device * parent,void * match,void * aux)84 ne_isa_match(struct device *parent, void *match, void *aux)
85 {
86 struct ne_isa_softc *isc = match;
87 struct ne2000_softc *nsc = &isc->sc_ne2000;
88 struct dp8390_softc *dsc = &nsc->sc_dp8390;
89 struct isa_attach_args *ia = aux;
90 bus_space_tag_t nict = ia->ia_iot;
91 bus_space_handle_t nich;
92 bus_space_tag_t asict;
93 bus_space_handle_t asich;
94
95 /* Disallow wildcarded values. */
96 if (ia->ia_irq == -1 /* ISACF_IRQ_DEFAULT */)
97 return (0);
98 if (ia->ia_iobase == -1 /* ISACF_PORT_DEFAULT */)
99 return (0);
100
101 /* Make sure this is a valid NE[12]000 i/o address. */
102 if ((ia->ia_iobase & 0x1f) != 0)
103 return (0);
104
105 /* Map i/o space. */
106 if (bus_space_map(nict, ia->ia_iobase, NE2000_NPORTS, 0, &nich))
107 return (0);
108
109 asict = nict;
110 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
111 NE2000_ASIC_NPORTS, &asich))
112 goto out;
113
114 dsc->sc_regt = nict;
115 dsc->sc_regh = nich;
116
117 nsc->sc_asict = asict;
118 nsc->sc_asich = asich;
119
120 /* Look for an NE2000-compatible card. */
121 nsc->sc_type = ne2000_detect(nsc);
122
123 if (nsc->sc_type)
124 ia->ia_iosize = NE2000_NPORTS;
125
126 out:
127 bus_space_unmap(nict, nich, NE2000_NPORTS);
128 return (nsc->sc_type);
129 }
130
131 void
ne_isa_attach(struct device * parent,struct device * self,void * aux)132 ne_isa_attach(struct device *parent, struct device *self, void *aux)
133 {
134 struct ne_isa_softc *isc = (struct ne_isa_softc *)self;
135 struct ne2000_softc *nsc = &isc->sc_ne2000;
136 struct dp8390_softc *dsc = &nsc->sc_dp8390;
137 struct isa_attach_args *ia = aux;
138 bus_space_tag_t nict = ia->ia_iot;
139 bus_space_handle_t nich;
140 bus_space_tag_t asict = nict;
141 bus_space_handle_t asich;
142 const char *typestr;
143
144 /* Map i/o space. */
145 if (bus_space_map(nict, ia->ia_iobase, NE2000_NPORTS, 0, &nich)) {
146 printf("%s: can't map i/o space\n", dsc->sc_dev.dv_xname);
147 return;
148 }
149
150 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
151 NE2000_ASIC_NPORTS, &asich)) {
152 printf("%s: can't subregion i/o space\n", dsc->sc_dev.dv_xname);
153 return;
154 }
155
156 dsc->sc_regt = nict;
157 dsc->sc_regh = nich;
158
159 nsc->sc_asict = asict;
160 nsc->sc_asich = asich;
161
162 switch (nsc->sc_type) {
163 case NE2000_TYPE_NE1000:
164 typestr = "NE1000";
165 break;
166
167 case NE2000_TYPE_NE2000:
168 typestr = "NE2000";
169 /*
170 * Check for a Realtek 8019.
171 */
172 bus_space_write_1(nict, nich, ED_P0_CR,
173 ED_CR_PAGE_0 | ED_CR_STP);
174 if (bus_space_read_1(nict, nich, NERTL_RTL0_8019ID0) ==
175 RTL0_8019ID0 &&
176 bus_space_read_1(nict, nich, NERTL_RTL0_8019ID1) ==
177 RTL0_8019ID1) {
178 typestr = "NE2000 (RTL8019)";
179 dsc->sc_mediachange = rtl80x9_mediachange;
180 dsc->sc_mediastatus = rtl80x9_mediastatus;
181 dsc->init_card = rtl80x9_init_card;
182 dsc->sc_media_init = rtl80x9_media_init;
183 }
184 break;
185
186 default:
187 printf(": where did the card go?!\n");
188 return;
189 }
190
191 printf(", %s", typestr);
192
193 /* This interface is always enabled. */
194 dsc->sc_enabled = 1;
195
196 /*
197 * Do generic NE2000 attach. This will read the station address
198 * from the EEPROM.
199 */
200 ne2000_attach(nsc, NULL);
201
202 /* Establish the interrupt handler. */
203 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
204 IPL_NET, dp8390_intr, dsc, dsc->sc_dev.dv_xname);
205 if (isc->sc_ih == NULL)
206 printf(": couldn't establish interrupt handler\n");
207 }
208