1 /* $NetBSD: if_ne_mca.c,v 1.15 2008/04/28 20:23:53 martin Exp $ */
2
3 /*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jaromir Dolecek.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 /*
33 * Driver for Novell NE/2 Ethernet Adapter (and clones).
34 *
35 * According to Linux ne2 driver, Arco and Compex card should be also
36 * supported by this driver. However, NetBSD driver was only tested
37 * with the Novell adapter so far.
38 */
39
40 #include <sys/cdefs.h>
41 __KERNEL_RCSID(0, "$NetBSD: if_ne_mca.c,v 1.15 2008/04/28 20:23:53 martin Exp $");
42
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/mbuf.h>
46 #include <sys/errno.h>
47 #include <sys/device.h>
48 #include <sys/protosw.h>
49 #include <sys/socket.h>
50
51 #include <net/if.h>
52 #include <net/if_types.h>
53 #include <net/if_media.h>
54 #include <net/if_ether.h>
55
56 #include <sys/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/mca/mcadevs.h>
68 #include <dev/mca/mcavar.h>
69
70 #define NE2_NPORTS 0x30
71
72 struct ne_mca_softc {
73 struct ne2000_softc sc_ne2000; /* real "ne2000" softc */
74
75 /* MCA-specific goo */
76 void *sc_ih; /* interrupt handle */
77 };
78
79 int ne_mca_match(device_t, cfdata_t , void *);
80 void ne_mca_attach(device_t, device_t, void *);
81
82 CFATTACH_DECL_NEW(ne_mca, sizeof(struct ne_mca_softc),
83 ne_mca_match, ne_mca_attach, NULL, NULL);
84
85 static const struct ne_mca_products {
86 u_int32_t ne_id;
87 const char *ne_name;
88 } ne_mca_products[] = {
89 { MCA_PRODUCT_ARCOAE, "Arco Electronics AE/2 Ethernet Adapter" },
90 { MCA_PRODUCT_NE2, "Novell NE/2 Ethernet Adapter" },
91 { MCA_PRODUCT_CENET16, "Compex Inc. PS/2 ENET16-MC/P Microchannel Ad."},
92 { 0, NULL }
93 };
94
95 static const struct ne_mca_products *ne_mca_lookup(int id);
96
97 static const struct ne_mca_products *
ne_mca_lookup(int id)98 ne_mca_lookup(int id)
99 {
100 const struct ne_mca_products *np;
101
102 for(np = ne_mca_products; np->ne_name; np++)
103 if (id == np->ne_id)
104 return (np);
105
106 return (NULL);
107 }
108
109 int
ne_mca_match(device_t parent,cfdata_t cf,void * aux)110 ne_mca_match(device_t parent, cfdata_t cf, void *aux)
111 {
112 struct mca_attach_args *ma = aux;
113
114 if (ne_mca_lookup(ma->ma_id))
115 return (1);
116
117 return (0);
118 }
119
120 /* These values were taken from NE/2 ADF file */
121 static const int ne_mca_irq[] = {
122 3, 4, 5, 9
123 };
124 static const int ne_mca_iobase[] = {
125 0, 0x1000, 0x2020, 0x8020, 0xa0a0, 0xb0b0, 0xc0c0, 0xc3d0
126 };
127
128 void
ne_mca_attach(device_t parent,device_t self,void * aux)129 ne_mca_attach(device_t parent, device_t self, void *aux)
130 {
131 struct ne_mca_softc *psc = device_private(self);
132 struct ne2000_softc *nsc = &psc->sc_ne2000;
133 struct dp8390_softc *dsc = &nsc->sc_dp8390;
134 struct mca_attach_args *ma = aux;
135 bus_space_tag_t nict;
136 bus_space_handle_t nich;
137 bus_space_tag_t asict;
138 bus_space_handle_t asich;
139 int pos2, iobase, irq;
140 const struct ne_mca_products *np;
141
142 dsc->sc_dev = self;
143
144 pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2);
145
146 /*
147 * POS register 2: (adf pos0)
148 *
149 * 7 6 5 4 3 2 1 0
150 * \_/ | \___/ \__ enable: 0=adapter disabled, 1=adapter enabled
151 * | | \____ I/O, Mem: 001=0x1000-0x102f 010=0x2020-0x204f
152 * | | 011=0x8020-0x804f 100=0xa0a0-0xa0cf
153 * | | 101=0xb0b0-0xb0df 110=0xc0c0-0xc0ef
154 * \ \ 111=0xc3d0-0xc3ff
155 * \ \________ Boot Rom: 1=disabled 0=enabled
156 * \__________ Interrupt level: 00=3 01=4 10=5 11=9
157 */
158
159 np = ne_mca_lookup(ma->ma_id);
160
161 iobase = ne_mca_iobase[(pos2 & 0x0e) >> 1];
162 irq = ne_mca_irq[(pos2 & 0x60) >> 5];
163
164 aprint_normal(" slot %d irq %d: %s\n", ma->ma_slot + 1, irq,
165 np->ne_name);
166
167 nict = ma->ma_iot;
168
169 /* Map the device. */
170 if (bus_space_map(nict, iobase, NE2_NPORTS, 0, &nich)) {
171 aprint_error_dev(self, "can't map i/o space\n");
172 return;
173 }
174
175 asict = nict;
176 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
177 NE2000_ASIC_NPORTS, &asich)) {
178 aprint_error_dev(self, "can't subregion i/o space\n");
179 return;
180 }
181
182 dsc->sc_regt = nict;
183 dsc->sc_regh = nich;
184
185 nsc->sc_asict = asict;
186 nsc->sc_asich = asich;
187
188 /* This interface is always enabled. */
189 dsc->sc_enabled = 1;
190
191 dsc->sc_mediachange = NULL;
192 dsc->sc_mediastatus = NULL;
193 dsc->sc_media_init = NULL;
194 dsc->init_card = NULL;
195
196 /*
197 * This is necessary for NE/2. Hopefully the other clones also work
198 * this way.
199 */
200 nsc->sc_type = NE2000_TYPE_AX88190;
201
202 /*
203 * Do generic NE2000 attach. This will read the station address
204 * from the EEPROM.
205 */
206 if (ne2000_attach(nsc, NULL))
207 return;
208
209 /* establish interrupt handler */
210 psc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET, dp8390_intr,
211 dsc);
212 if (psc->sc_ih == NULL) {
213 aprint_error_dev(self,
214 "couldn't establish interrupt handler\n");
215 return;
216 }
217 }
218