1 /* $NetBSD: cmi.c,v 1.16 2021/08/07 16:19:07 thorpej Exp $ */
2 /*
3 * Copyright (c) 1999 Ludd, University of Lule}, Sweden.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 __KERNEL_RCSID(0, "$NetBSD: cmi.c,v 1.16 2021/08/07 16:19:07 thorpej Exp $");
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/bus.h>
33 #include <sys/cpu.h>
34 #include <sys/device.h>
35
36 #include <machine/nexus.h>
37 #include <machine/sid.h>
38 #include <machine/ka750.h>
39 #include <machine/mainbus.h>
40
41 static int cmi_print(void *, const char *);
42 static int cmi_match(device_t, cfdata_t, void *);
43 static void cmi_attach(device_t, device_t, void*);
44
45 CFATTACH_DECL_NEW(cmi, 0,
46 cmi_match, cmi_attach, NULL, NULL);
47
48 int
cmi_print(void * aux,const char * name)49 cmi_print(void *aux, const char *name)
50 {
51 struct sbi_attach_args * const sa = aux;
52
53 if (name)
54 aprint_normal("unknown device 0x%x at %s", sa->sa_type, name);
55
56 aprint_normal(" tr%d", sa->sa_nexnum);
57 return (UNCONF);
58 }
59
60
61 int
cmi_match(device_t parent,cfdata_t cf,void * aux)62 cmi_match(device_t parent, cfdata_t cf, void *aux)
63 {
64 struct mainbus_attach_args * const ma = aux;
65
66 return !strcmp("cmi", ma->ma_type);
67 }
68
69 void
cmi_attach(device_t parent,device_t self,void * aux)70 cmi_attach(device_t parent, device_t self, void *aux)
71 {
72 struct sbi_attach_args sa;
73
74 sa.sa_base = NEX750;
75
76 aprint_normal("\n");
77 /*
78 * Probe for memory, can be in the first 4 slots.
79 */
80 #define NEXPAGES (sizeof(struct nexus) / VAX_NBPG)
81 for (sa.sa_nexnum = 0; sa.sa_nexnum < 4; sa.sa_nexnum++) {
82 sa.sa_ioh = vax_map_physmem(NEX750 +
83 sizeof(struct nexus) * sa.sa_nexnum, NEXPAGES);
84 if (badaddr((void *)sa.sa_ioh, 4)) {
85 vax_unmap_physmem((vaddr_t)sa.sa_ioh, NEXPAGES);
86 } else {
87 sa.sa_type = NEX_MEM16;
88 config_found(self, (void*)&sa, cmi_print, CFARGS_NONE);
89 }
90 }
91
92 /*
93 * Probe for mba's, can be in slot 4 - 7.
94 */
95 for (sa.sa_nexnum = 4; sa.sa_nexnum < 7; sa.sa_nexnum++) {
96 sa.sa_ioh = vax_map_physmem(NEX750 +
97 sizeof(struct nexus) * sa.sa_nexnum, NEXPAGES);
98 if (badaddr((void *)sa.sa_ioh, 4)) {
99 vax_unmap_physmem((vaddr_t)sa.sa_ioh, NEXPAGES);
100 } else {
101 sa.sa_type = NEX_MBA;
102 config_found(self, (void*)&sa, cmi_print, CFARGS_NONE);
103 }
104 }
105
106 /*
107 * There are always one generic UBA, and maybe an optional.
108 */
109 sa.sa_nexnum = 8;
110 sa.sa_ioh = vax_map_physmem(NEX750 +
111 sizeof(struct nexus) * sa.sa_nexnum, NEXPAGES);
112 sa.sa_type = NEX_UBA0;
113 config_found(self, (void*)&sa, cmi_print, CFARGS_NONE);
114
115 sa.sa_nexnum = 9;
116 sa.sa_ioh = vax_map_physmem(NEX750 +
117 sizeof(struct nexus) * sa.sa_nexnum, NEXPAGES);
118 sa.sa_type = NEX_UBA1;
119 if (badaddr((void *)sa.sa_ioh, 4))
120 vax_unmap_physmem((vaddr_t)sa.sa_ioh, NEXPAGES);
121 else
122 config_found(self, (void*)&sa, cmi_print, CFARGS_NONE);
123 }
124