1 /* $NetBSD: rsbus.c,v 1.12 2021/08/07 16:18:40 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2002
5 * Ichiro FUKUHARA <ichiro@ichiro.org>.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/cdefs.h>
31
32 __KERNEL_RCSID(0, "$NetBSD: rsbus.c,v 1.12 2021/08/07 16:18:40 thorpej Exp $");
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/device.h>
37 #include <sys/bus.h>
38
39 #include <acorn32/eb7500atx/rsbus.h>
40
41 #include "locators.h"
42
43 extern struct bus_space rsbus_bs_tag;
44
45 /* Declare prototypes */
46
47 static int rsbus_match(device_t, cfdata_t, void *);
48 static void rsbus_attach(device_t, device_t, void *);
49 static int rsbus_print(void *, const char *);
50 static int rsbus_search(device_t, cfdata_t,
51 const int *, void *);
52
53 CFATTACH_DECL_NEW(rsbus, sizeof(struct rsbus_softc),
54 rsbus_match, rsbus_attach, NULL, NULL);
55
56 static int
rsbus_match(device_t parent,cfdata_t cf,void * aux)57 rsbus_match(device_t parent, cfdata_t cf, void *aux)
58 {
59 return(1);
60 }
61
62 static void
rsbus_attach(device_t parent,device_t self,void * aux)63 rsbus_attach(device_t parent, device_t self, void *aux)
64 {
65 struct rsbus_softc *sc = device_private(self);
66 sc->sc_iot = &rsbus_bs_tag;
67
68 printf("\n");
69
70 /*
71 * Attach each devices
72 */
73 config_search(self, NULL,
74 CFARGS(.search = rsbus_search));
75 }
76
77 static int
rsbus_search(device_t parent,cfdata_t cf,const int * ldesc,void * aux)78 rsbus_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
79 {
80 struct rsbus_softc *sc = device_private(parent);
81 struct rsbus_attach_args sa;
82
83 sa.sa_iot = sc->sc_iot;
84 sa.sa_addr = cf->cf_loc[RSBUSCF_ADDR];
85 sa.sa_size = cf->cf_loc[RSBUSCF_SIZE];
86 sa.sa_intr = cf->cf_loc[RSBUSCF_IRQ];
87
88 if (config_probe(parent, cf, &sa))
89 config_attach(parent, cf, &sa, rsbus_print, CFARGS_NONE);
90
91 return (0);
92 }
93
94 static int
rsbus_print(void * aux,const char * name)95 rsbus_print(void *aux, const char *name)
96 {
97 struct rsbus_attach_args *sa = aux;
98
99 if (sa->sa_size)
100 aprint_normal(" addr 0x%lx", sa->sa_addr);
101 if (sa->sa_size > 1)
102 aprint_normal("-0x%lx", sa->sa_addr + sa->sa_size - 1);
103 if (sa->sa_intr > 1)
104 aprint_normal(" irq %d", sa->sa_intr);
105
106 return (UNCONF);
107 }
108