1 /* $OpenBSD: if_ne_cbus.c,v 1.5 2024/06/01 00:48:16 aoyama 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 /*
35 * Driver for C-bus NE2000 based Ethernet board
36 * based on: OpenBSD:src/sys/dev/isa/if_ne_isa.c
37 */
38
39 /*
40 * Supported boards:
41 * - Allied Telesis CentreCOM LA-98 series
42 * Available configuration:
43 * INT(IRQ): 0(3), 1(5), 2(6), 3(9), 4(10), 5(12), 6(13) (default: INT0)
44 * I/O address: 0xc8d0, 0xc2d0, 0xc4d0, 0xc460, 0xc9d0, 0xcad0, 0xcbd0
45 * (default 0xc8d0)
46 */
47
48 #include "bpfilter.h"
49
50 #include <sys/param.h>
51 #include <sys/systm.h>
52 #include <sys/mbuf.h>
53 #include <sys/socket.h>
54 #include <sys/ioctl.h>
55 #include <sys/errno.h>
56 #include <sys/syslog.h>
57 #include <sys/device.h>
58
59 #include <net/if.h>
60 #include <net/if_media.h>
61
62 #include <netinet/in.h>
63 #include <netinet/if_ether.h>
64
65 #if NBPFILTER > 0
66 #include <net/bpf.h>
67 #endif
68
69 #include <machine/board.h> /* PC_BASE */
70 #include <machine/bus.h>
71 #include <machine/intr.h>
72
73 #include <dev/ic/dp8390reg.h>
74 #include <dev/ic/dp8390var.h>
75
76 #include <dev/ic/ne2000reg.h>
77 #include <dev/ic/ne2000var.h>
78
79 #include <dev/ic/rtl80x9reg.h>
80 #include <dev/ic/rtl80x9var.h>
81
82 #include <arch/luna88k/cbus/cbusvar.h>
83
84 /* bus space tag for if_ne_cbus */
85 struct luna88k_bus_space_tag ne_cbus_io_bst = {
86 .bs_stride_1 = 0,
87 .bs_stride_2 = 0,
88 .bs_stride_4 = 0,
89 .bs_stride_8 = 0, /* not used */
90 .bs_offset = PCEXIO_BASE,
91 .bs_flags = TAG_LITTLE_ENDIAN
92 };
93
94 int ne_cbus_match(struct device *, void *, void *);
95 void ne_cbus_attach(struct device *, struct device *, void *);
96
97 struct ne_cbus_softc {
98 struct ne2000_softc sc_ne2000; /* real "ne2000" softc */
99
100 /* C-bus specific goo. */
101 void *sc_ih; /* interrupt cookie */
102 };
103
104 const struct cfattach ne_cbus_ca = {
105 sizeof(struct ne_cbus_softc), ne_cbus_match, ne_cbus_attach
106 };
107
108 int
ne_cbus_match(struct device * parent,void * match,void * aux)109 ne_cbus_match(struct device *parent, void *match, void *aux)
110 {
111 struct ne_cbus_softc *csc = match;
112 struct ne2000_softc *nsc = &csc->sc_ne2000;
113 struct dp8390_softc *dsc = &nsc->sc_dp8390;
114 struct cbus_attach_args *caa = aux;
115 bus_space_tag_t nict = &ne_cbus_io_bst;
116 bus_space_handle_t nich;
117 bus_space_tag_t asict;
118 bus_space_handle_t asich;
119 struct cfdata *cf = match;
120
121 if (strcmp(caa->ca_name, cf->cf_driver->cd_name) != 0)
122 return (0);
123
124 SET_TAG_LITTLE_ENDIAN(nict);
125
126 caa->ca_iobase = cf->cf_iobase;
127 caa->ca_int = cf->cf_int;
128
129 /* Disallow wildcarded values. */
130 if (caa->ca_int == -1)
131 return (0);
132 if (caa->ca_iobase == -1)
133 return (0);
134
135 #if 0 /* XXX: Is this not true on PC-9801? */
136 /* Make sure this is a valid NE[12]000 i/o address. */
137 if ((caa->ca_iobase & 0x1f) != 0)
138 return (0);
139 #endif
140 /* Map i/o space. */
141 if (bus_space_map(nict, caa->ca_iobase, NE2000_NPORTS, 0, &nich))
142 return (0);
143
144 asict = nict;
145 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
146 NE2000_ASIC_NPORTS, &asich))
147 goto out;
148
149 dsc->sc_regt = nict;
150 dsc->sc_regh = nich;
151
152 nsc->sc_asict = asict;
153 nsc->sc_asich = asich;
154
155 /* Look for an NE2000-compatible card. */
156 nsc->sc_type = ne2000_detect(nsc);
157
158 if (nsc->sc_type)
159 caa->ca_iosize = NE2000_NPORTS;
160
161 out:
162 bus_space_unmap(nict, nich, NE2000_NPORTS);
163 return (nsc->sc_type);
164 }
165
166 void
ne_cbus_attach(struct device * parent,struct device * self,void * aux)167 ne_cbus_attach(struct device *parent, struct device *self, void *aux)
168 {
169 struct ne_cbus_softc *csc = (void *)self;
170 struct ne2000_softc *nsc = &csc->sc_ne2000;
171 struct dp8390_softc *dsc = &nsc->sc_dp8390;
172 struct cbus_attach_args *caa = aux;
173 bus_space_tag_t nict = &ne_cbus_io_bst;
174 bus_space_handle_t nich;
175 bus_space_tag_t asict = nict;
176 bus_space_handle_t asich;
177 const char *typestr;
178
179 /* Map i/o space. */
180 if (bus_space_map(nict, caa->ca_iobase, NE2000_NPORTS, 0, &nich)) {
181 printf("%s: can't map i/o space\n", dsc->sc_dev.dv_xname);
182 return;
183 }
184
185 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
186 NE2000_ASIC_NPORTS, &asich)) {
187 printf("%s: can't subregion i/o space\n", dsc->sc_dev.dv_xname);
188 return;
189 }
190
191 dsc->sc_regt = nict;
192 dsc->sc_regh = nich;
193
194 nsc->sc_asict = asict;
195 nsc->sc_asich = asich;
196
197 /* Look for an NE2000-compatible card. */
198 nsc->sc_type = ne2000_detect(nsc);
199
200 switch (nsc->sc_type) {
201 case NE2000_TYPE_NE1000:
202 typestr = "NE1000";
203 break;
204
205 case NE2000_TYPE_NE2000:
206 typestr = "NE2000";
207 /*
208 * Check for a Realtek 8019.
209 */
210 bus_space_write_1(nict, nich, ED_P0_CR,
211 ED_CR_PAGE_0 | ED_CR_STP);
212 if (bus_space_read_1(nict, nich, NERTL_RTL0_8019ID0) ==
213 RTL0_8019ID0 &&
214 bus_space_read_1(nict, nich, NERTL_RTL0_8019ID1) ==
215 RTL0_8019ID1) {
216 typestr = "NE2000 (RTL8019)";
217 dsc->sc_mediachange = rtl80x9_mediachange;
218 dsc->sc_mediastatus = rtl80x9_mediastatus;
219 dsc->init_card = rtl80x9_init_card;
220 dsc->sc_media_init = rtl80x9_media_init;
221 }
222 break;
223
224 default:
225 printf(": where did the card go?!\n");
226 return;
227 }
228
229 printf(", %s", typestr);
230
231 /* This interface is always enabled. */
232 dsc->sc_enabled = 1;
233
234 /*
235 * Do generic NE2000 attach. This will read the station address
236 * from the EEPROM.
237 */
238 ne2000_attach(nsc, NULL);
239
240 /* Establish the interrupt handler. */
241 if (cbus_isrlink(dp8390_intr, dsc, caa->ca_int, IPL_NET,
242 dsc->sc_dev.dv_xname) != 0)
243 printf(": couldn't establish interrupt handler\n");
244 }
245