1 /* $NetBSD: depca_eisa.c,v 1.5 2002/10/02 16:33:46 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2000 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.
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 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 /*
40 * EISA bus front-end for the Digital DEPCA Ethernet controller.
41 */
42
43 #include <sys/cdefs.h>
44 __KERNEL_RCSID(0, "$NetBSD: depca_eisa.c,v 1.5 2002/10/02 16:33:46 thorpej Exp $");
45
46 #include "opt_inet.h"
47 #include "bpfilter.h"
48
49 #include <sys/param.h>
50 #include <sys/systm.h>
51 #include <sys/mbuf.h>
52 #include <sys/syslog.h>
53 #include <sys/socket.h>
54 #include <sys/device.h>
55
56 #include <net/if.h>
57 #include <net/if_media.h>
58 #include <net/if_ether.h>
59
60 #ifdef INET
61 #include <netinet/in.h>
62 #include <netinet/if_inarp.h>
63 #endif
64
65 #include <machine/bus.h>
66 #include <machine/intr.h>
67
68 #include <dev/eisa/eisareg.h>
69 #include <dev/eisa/eisavar.h>
70 #include <dev/eisa/eisadevs.h>
71
72 #include <dev/ic/lancereg.h>
73 #include <dev/ic/lancevar.h>
74 #include <dev/ic/am7990reg.h>
75 #include <dev/ic/am7990var.h>
76 #include <dev/ic/depcareg.h>
77 #include <dev/ic/depcavar.h>
78
79 int depca_eisa_match(struct device *, struct cfdata *, void *);
80 void depca_eisa_attach(struct device *, struct device *, void *);
81
82 struct depca_eisa_softc {
83 struct depca_softc sc_depca;
84
85 eisa_chipset_tag_t sc_ec;
86 int sc_irq;
87 int sc_ist;
88 };
89
90 CFATTACH_DECL(depca_eisa, sizeof(struct depca_eisa_softc),
91 depca_eisa_match, depca_eisa_attach, NULL, NULL);
92
93 void *depca_eisa_intr_establish(struct depca_softc *, struct lance_softc *);
94
95 int
96 depca_eisa_match(struct device *parent, struct cfdata *match, void *aux)
97 {
98 struct eisa_attach_args *ea = aux;
99
100 return (strcmp(ea->ea_idstring, "DEC4220") == 0);
101 }
102
103 #define DEPCA_ECU_FUNC_NETINTR 0
104 #define DEPCA_ECU_FUNC_NETBUF 1
105
106 void
107 depca_eisa_attach(struct device *parent, struct device *self, void *aux)
108 {
109 struct depca_softc *sc = (void *) self;
110 struct depca_eisa_softc *esc = (void *) self;
111 struct eisa_attach_args *ea = aux;
112 struct eisa_cfg_mem ecm;
113 struct eisa_cfg_irq eci;
114
115 printf(": DEC DE422 Ethernet\n");
116
117 sc->sc_iot = ea->ea_iot;
118 sc->sc_memt = ea->ea_memt;
119
120 esc->sc_ec = ea->ea_ec;
121
122 sc->sc_intr_establish = depca_eisa_intr_establish;
123
124 if (eisa_conf_read_mem(ea->ea_ec, ea->ea_slot,
125 DEPCA_ECU_FUNC_NETBUF, 0, &ecm) != 0) {
126 printf("%s: unable to find network buffer\n",
127 sc->sc_dev.dv_xname);
128 return;
129 }
130
131 printf("%s: shared memory at 0x%lx-0x%lx\n", sc->sc_dev.dv_xname,
132 ecm.ecm_addr, ecm.ecm_addr + ecm.ecm_size - 1);
133
134 sc->sc_memsize = ecm.ecm_size;
135
136 if (bus_space_map(sc->sc_iot, EISA_SLOT_ADDR(ea->ea_slot) + 0xc00, 16,
137 0, &sc->sc_ioh) != 0) {
138 printf("%s: unable to map i/o space\n", sc->sc_dev.dv_xname);
139 return;
140 }
141 if (bus_space_map(sc->sc_memt, ecm.ecm_addr, sc->sc_memsize,
142 0, &sc->sc_memh) != 0) {
143 printf("%s: unable to map memory space\n", sc->sc_dev.dv_xname);
144 return;
145 }
146
147 if (eisa_conf_read_irq(ea->ea_ec, ea->ea_slot,
148 DEPCA_ECU_FUNC_NETINTR, 0, &eci) != 0) {
149 printf("%s: unable to determine IRQ\n",
150 sc->sc_dev.dv_xname);
151 return;
152 }
153
154 esc->sc_irq = eci.eci_irq;
155 esc->sc_ist = eci.eci_ist;
156
157 depca_attach(sc);
158 }
159
160 void *
161 depca_eisa_intr_establish(struct depca_softc *parent, struct lance_softc *child)
162 {
163 struct depca_eisa_softc *esc = (void *) parent;
164 eisa_intr_handle_t ih;
165 const char *intrstr;
166 void *rv;
167
168 if (eisa_intr_map(esc->sc_ec, esc->sc_irq, &ih)) {
169 printf("%s: unable to map interrupt (%d)\n",
170 parent->sc_dev.dv_xname, esc->sc_irq);
171 return (NULL);
172 }
173 intrstr = eisa_intr_string(esc->sc_ec, ih);
174 rv = eisa_intr_establish(esc->sc_ec, ih, esc->sc_ist, IPL_NET,
175 (esc->sc_ist == IST_LEVEL) ? am7990_intr : depca_intredge, child);
176 if (rv == NULL) {
177 printf("%s: unable to establish interrupt",
178 parent->sc_dev.dv_xname);
179 if (intrstr != NULL)
180 printf(" at %s", intrstr);
181 printf("\n");
182 return (NULL);
183 }
184 if (intrstr != NULL)
185 printf("%s: interrupting at %s\n", parent->sc_dev.dv_xname,
186 intrstr);
187
188 return (rv);
189 }
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