1/* $NetBSD: sio.c,v 1.10 2011/07/27 14:17:54 tsutsui Exp $ */
2
3/*-
4 * Copyright (c) 2000 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Tohru Nishimura.
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>			/* RCS ID & Copyright macro defns */
33
34__KERNEL_RCSID(0, "$NetBSD: sio.c,v 1.10 2011/07/27 14:17:54 tsutsui Exp $");
35
36#include <sys/param.h>
37#include <sys/systm.h>
38#include <sys/device.h>
39
40#include <machine/cpu.h>
41#include <machine/autoconf.h>
42
43#include <luna68k/luna68k/isr.h>
44#include <luna68k/dev/siovar.h>
45
46#include "ioconf.h"
47
48static int  sio_match(device_t, cfdata_t, void *);
49static void sio_attach(device_t, device_t, void *);
50static int  sio_print(void *, const char *);
51
52CFATTACH_DECL_NEW(sio, sizeof(struct sio_softc),
53    sio_match, sio_attach, NULL, NULL);
54
55static void nullintr(int);
56static int xsiointr(void *);
57
58static int
59sio_match(device_t parent, cfdata_t cf, void *aux)
60{
61	struct mainbus_attach_args *ma = aux;
62
63	if (strcmp(ma->ma_name, sio_cd.cd_name))
64		return 0;
65	if (badaddr((void *)ma->ma_addr, 4))
66		return 0;
67	return 1;
68}
69
70static void
71sio_attach(device_t parent, device_t self, void *aux)
72{
73	struct sio_softc *sc = device_private(self);
74	struct mainbus_attach_args *ma = aux;
75	struct sio_attach_args sio_args;
76	int channel;
77	extern int sysconsole; /* console: 0 for ttya, 1 for desktop */
78
79	aprint_normal(": uPD7201A\n");
80
81	sc->scp_dev = self;
82	sc->scp_ctl = (void *)ma->ma_addr;
83	sc->scp_intr[0] = sc->scp_intr[1] = nullintr;
84	for (channel = 0; channel < 2; channel++) {
85		sio_args.channel = channel;
86		sio_args.hwflags = (channel == sysconsole);
87		config_found(self, (void *)&sio_args, sio_print);
88	}
89
90	isrlink_autovec(xsiointr, sc, ma->ma_ilvl, ISRPRI_TTYNOBUF);
91}
92
93static int
94sio_print(void *aux, const char *name)
95{
96	struct sio_attach_args *args = aux;
97
98	if (name != NULL)
99		aprint_normal("%s: ", name);
100
101	if (args->channel != -1)
102		aprint_normal(" channel %d", args->channel);
103
104	return UNCONF;
105}
106
107static int
108xsiointr(void *arg)
109{
110	struct sio_softc *sc = arg;
111
112	(*sc->scp_intr[0])(0); 	/* 0: ttya system serial port */
113	(*sc->scp_intr[1])(1);	/* 1: keyboard and mouse */
114	return 1;
115}
116
117static void
118nullintr(int v)
119{
120}
121