1 /* $NetBSD: if_en.c,v 1.29 2011/07/18 00:58:52 mrg Exp $ */
2
3 /*
4 * Copyright (c) 1996 Charles D. Cranor and Washington University.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 /*
29 *
30 * i f _ e n _ s b u s . c
31 *
32 * author: Chuck Cranor <chuck@ccrc.wustl.edu>
33 * started: spring, 1996.
34 *
35 * SBUS glue for the eni155s card.
36 */
37
38 #include <sys/cdefs.h>
39 __KERNEL_RCSID(0, "$NetBSD: if_en.c,v 1.29 2011/07/18 00:58:52 mrg Exp $");
40
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/device.h>
44 #include <sys/mbuf.h>
45 #include <sys/socket.h>
46 #include <sys/socketvar.h>
47
48 #include <net/if.h>
49
50 #include <sys/bus.h>
51 #include <sys/intr.h>
52 #include <sys/cpu.h>
53
54 #include <dev/sbus/sbusvar.h>
55
56 #include <dev/ic/midwayreg.h>
57 #include <dev/ic/midwayvar.h>
58
59
60 /*
61 * prototypes
62 */
63 static int en_sbus_match(device_t, cfdata_t, void *);
64 static void en_sbus_attach(device_t, device_t, void *);
65
66 /*
67 * SBus autoconfig attachments
68 */
69
70 CFATTACH_DECL_NEW(en_sbus, sizeof(struct en_softc),
71 en_sbus_match, en_sbus_attach, NULL, NULL);
72
73 /***********************************************************************/
74
75 /*
76 * autoconfig stuff
77 */
78
79 static int
en_sbus_match(device_t parent,cfdata_t cf,void * aux)80 en_sbus_match(device_t parent, cfdata_t cf, void *aux)
81 {
82 struct sbus_attach_args *sa = aux;
83
84 if (strcmp("ENI-155s", sa->sa_name) == 0) {
85 if (CPU_ISSUN4M) {
86 #ifdef DEBUG
87 printf("%s: sun4m DMA not supported yet\n",
88 sa->sa_name);
89 #endif
90 return (0);
91 }
92 return (1);
93 } else {
94 return (0);
95 }
96 }
97
98
99 static void
en_sbus_attach(device_t parent,device_t self,void * aux)100 en_sbus_attach(device_t parent, device_t self, void *aux)
101 {
102 struct sbus_attach_args *sa = aux;
103 struct en_softc *sc = device_private(self);
104
105 sc->sc_dev = self;
106
107 printf("\n");
108
109 if (sbus_bus_map(sa->sa_bustag,
110 sa->sa_slot,
111 sa->sa_offset,
112 4*1024*1024,
113 0, &sc->en_base) != 0) {
114 aprint_error_dev(self, "cannot map registers\n");
115 return;
116 }
117
118 /* Establish interrupt handler */
119 if (sa->sa_nintr != 0)
120 (void)bus_intr_establish(sa->sa_bustag, sa->sa_pri,
121 IPL_NET, en_intr, sc);
122
123 sc->ipl = sa->sa_pri; /* appropriate? */
124
125 /*
126 * done SBUS specific stuff
127 */
128 en_attach(sc);
129 }
130