1 /* $NetBSD: obio.c,v 1.5 2021/08/07 16:18:49 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.
5 * All rights reserved.
6 *
7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed for the NetBSD Project by
20 * Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 * or promote products derived from this software without specific prior
23 * written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38 #include <sys/cdefs.h>
39 __KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.5 2021/08/07 16:18:49 thorpej Exp $");
40
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/device.h>
44
45 #include <machine/autoconf.h>
46 #include <sys/bus.h>
47
48 #include <arm/xscale/i80321reg.h>
49
50 #include <evbarm/hdl_g/hdlgreg.h>
51 #include <evbarm/hdl_g/obiovar.h>
52
53 #include "locators.h"
54
55 int obio_match(device_t, cfdata_t, void *);
56 void obio_attach(device_t, device_t, void *);
57
58 CFATTACH_DECL_NEW(obio, 0,
59 obio_match, obio_attach, NULL, NULL);
60
61 int obio_print(void *, const char *);
62 int obio_search(device_t, cfdata_t, const int *, void *);
63
64 /* there can be only one */
65 bool obio_found;
66
67 int
obio_match(device_t parent,cfdata_t cf,void * aux)68 obio_match(device_t parent, cfdata_t cf, void *aux)
69 {
70
71 if (obio_found)
72 return 0;
73 return 1;
74 }
75
76 void
obio_attach(device_t parent,device_t self,void * aux)77 obio_attach(device_t parent, device_t self, void *aux)
78 {
79
80 obio_found = true;
81
82 aprint_naive("\n");
83 aprint_normal("\n");
84
85 /*
86 * Attach all on-board devices as described in the kernel
87 * configuration file.
88 */
89 config_search(self, NULL,
90 CFARGS(.search = obio_search));
91 }
92
93 int
obio_print(void * aux,const char * pnp)94 obio_print(void *aux, const char *pnp)
95 {
96 struct obio_attach_args *oba = aux;
97
98 aprint_normal(" addr 0x%08lx", oba->oba_addr);
99 if (oba->oba_size != OBIOCF_SIZE_DEFAULT)
100 aprint_normal("-0x%08lx", oba->oba_addr + (oba->oba_size - 1));
101 if (oba->oba_width != OBIOCF_WIDTH_DEFAULT)
102 aprint_normal(" width %d", oba->oba_width);
103 if (oba->oba_irq != -1)
104 aprint_normal(" xint %d", oba->oba_irq - ICU_INT_XINT0);
105
106 return UNCONF;
107 }
108
109 int
obio_search(device_t parent,cfdata_t cf,const int * ldesc,void * aux)110 obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
111 {
112 struct obio_attach_args oba;
113
114 oba.oba_st = &obio_bs_tag;
115
116 oba.oba_addr = cf->cf_loc[OBIOCF_ADDR];
117 oba.oba_size = cf->cf_loc[OBIOCF_SIZE];
118 oba.oba_width = cf->cf_loc[OBIOCF_WIDTH];
119
120 if (cf->cf_loc[OBIOCF_XINT] != OBIOCF_XINT_DEFAULT)
121 oba.oba_irq = ICU_INT_XINT(cf->cf_loc[OBIOCF_XINT]);
122 else
123 oba.oba_irq = -1;
124
125 if (config_probe(parent, cf, &oba))
126 config_attach(parent, cf, &oba, obio_print, CFARGS_NONE);
127
128 return 0;
129 }
130