1 /* $NetBSD: drsupio.c,v 1.23 2021/08/07 16:18:41 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1997 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Ignatios Souvatzis.
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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: drsupio.c,v 1.23 2021/08/07 16:18:41 thorpej Exp $");
34
35 /*
36 * DraCo multi-io chip bus space stuff
37 */
38
39 #include <sys/types.h>
40
41 #include <sys/conf.h>
42 #include <sys/device.h>
43 #include <sys/systm.h>
44 #include <sys/param.h>
45 #include <sys/bus.h>
46
47 #include <amiga/include/cpu.h>
48
49 #include <amiga/amiga/device.h>
50 #include <amiga/amiga/drcustom.h>
51
52 #include <amiga/dev/supio.h>
53
54 struct drsupio_softc {
55 struct bus_space_tag sc_bst;
56 };
57
58 int drsupiomatch(device_t, cfdata_t, void *);
59 void drsupioattach(device_t, device_t, void *);
60 int drsupprint(void *, const char *);
61 void drlptintack(void *);
62
63 CFATTACH_DECL_NEW(drsupio, sizeof(struct drsupio_softc),
64 drsupiomatch, drsupioattach, NULL, NULL);
65
66 int
drsupiomatch(device_t parent,cfdata_t cf,void * aux)67 drsupiomatch(device_t parent, cfdata_t cf, void *aux)
68 {
69 static int drsupio_matched = 0;
70
71 /* Exactly one of us lives on the DraCo */
72 if (!is_draco() || !matchname(aux, "drsupio") || drsupio_matched)
73 return 0;
74
75 drsupio_matched = 1;
76 return 1;
77 }
78
79 struct drsupio_devs {
80 const char *name;
81 int off;
82 int arg;
83 } drsupiodevs[] = {
84 { "com", 0x3f8, 115200 * 16 },
85 { "com", 0x2f8, 115200 * 16 },
86 { "lpt", 0x278, (int)drlptintack },
87 { "fdc", 0x3f0, 0 },
88 /* WD port? */
89 { 0 }
90 };
91
92 void
drsupioattach(device_t parent,device_t self,void * aux)93 drsupioattach(device_t parent, device_t self, void *aux)
94 {
95 struct drsupio_softc *drsc;
96 struct drsupio_devs *drsd;
97 struct drioct *ioct;
98 struct supio_attach_args supa;
99
100 drsc = device_private(self);
101 drsd = drsupiodevs;
102
103 if (parent)
104 printf("\n");
105
106 drsc->sc_bst.base = DRCCADDR + PAGE_SIZE * DRSUPIOPG + 1;
107 drsc->sc_bst.absm = &amiga_bus_stride_4;
108
109 supa.supio_iot = &drsc->sc_bst;
110 supa.supio_ipl = 5;
111
112 while (drsd->name) {
113 supa.supio_name = drsd->name;
114 supa.supio_iobase = drsd->off;
115 supa.supio_arg = drsd->arg;
116 config_found(self, &supa, drsupprint, CFARGS_NONE); /* XXX */
117 ++drsd;
118 }
119
120 drlptintack(0);
121 ioct = (struct drioct *)(DRCCADDR + PAGE_SIZE * DRIOCTLPG);
122 ioct->io_status2 |= DRSTAT2_PARIRQENA;
123 }
124
125 void
drlptintack(void * p)126 drlptintack(void *p)
127 {
128 struct drioct *ioct;
129
130 (void)p;
131 ioct = (struct drioct *)(DRCCADDR + PAGE_SIZE * DRIOCTLPG);
132
133 ioct->io_parrst = 0; /* any value works */
134 }
135
136 int
drsupprint(void * aux,const char * pnp)137 drsupprint(void *aux, const char *pnp)
138 {
139 struct supio_attach_args *supa;
140
141 supa = aux;
142
143 if (pnp == NULL)
144 return(QUIET);
145
146 aprint_normal("%s at %s port 0x%02x",
147 supa->supio_name, pnp, supa->supio_iobase);
148
149 return(UNCONF);
150 }
151