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
54struct drsupio_softc {
55	struct bus_space_tag sc_bst;
56};
57
58int drsupiomatch(device_t, cfdata_t, void *);
59void drsupioattach(device_t, device_t, void *);
60int drsupprint(void *, const char *);
61void drlptintack(void *);
62
63CFATTACH_DECL_NEW(drsupio, sizeof(struct drsupio_softc),
64    drsupiomatch, drsupioattach, NULL, NULL);
65
66int
67drsupiomatch(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
79struct 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
92void
93drsupioattach(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
125void
126drlptintack(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
136int
137drsupprint(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