summaryrefslogtreecommitdiff
path: root/sys/dev/acpi/com_acpi.c
blob: 70a612e17a976dc07f01f12784dbb955b44a4501 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
/* $NetBSD: com_acpi.c,v 1.12 2003/11/03 18:25:56 mycroft Exp $ */

/*
 * Copyright (c) 2002 Jared D. McNeill <jmcneill@invisible.ca>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: com_acpi.c,v 1.12 2003/11/03 18:25:56 mycroft Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/termios.h>

#include <machine/bus.h>

#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>

#include <dev/acpi/acpica.h>
#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>

#include <dev/ic/comvar.h>

int	com_acpi_match(struct device *, struct cfdata *, void *);
void	com_acpi_attach(struct device *, struct device *, void *);

struct com_acpi_softc {
	struct com_softc sc_com;
	void *sc_ih;
};

CFATTACH_DECL(com_acpi, sizeof(struct com_acpi_softc), com_acpi_match,
    com_acpi_attach, NULL, NULL);

/*
 * Supported device IDs
 */

static const char * const com_acpi_ids[] = {
	"PNP0500",	/* Standard PC COM port */
	"PNP0501",	/* 16550A-compatible COM port */
	"PNP0510",	/* Generic IRDA-compatible device */
	"PNP0511",	/* Generic IRDA-compatible device */
	"IBM0071",	/* IBM ThinkPad IRDA device */
	"SMCF010",	/* SMC SuperIO IRDA device */
	NULL
};

/*
 * com_acpi_match: autoconf(9) match routine
 */
int
com_acpi_match(struct device *parent, struct cfdata *match, void *aux)
{
	struct acpi_attach_args *aa = aux;

	if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
		return 0;

	return acpi_match_hid(aa->aa_node->ad_devinfo,com_acpi_ids);
}

/*
 * com_acpi_attach: autoconf(9) attach routine
 */
void
com_acpi_attach(struct device *parent, struct device *self, void *aux)
{
	struct com_acpi_softc *asc = (struct com_acpi_softc *)self;
	struct com_softc *sc = &asc->sc_com;
	struct acpi_attach_args *aa = aux;
	struct acpi_resources res;
	struct acpi_io *io;
	struct acpi_irq *irq;
	ACPI_STATUS rv;

	printf("\n");

	/* parse resources */
	rv = acpi_resource_parse(&sc->sc_dev, aa->aa_node, &res,
	    &acpi_resource_parse_ops_default);
	if (ACPI_FAILURE(rv))
		return;

	/* find our i/o registers */
	io = acpi_res_io(&res, 0);
	if (io == NULL) {
		printf("%s: unable to find i/o register resource\n",
		    sc->sc_dev.dv_xname);
		return;
	}

	/* find our IRQ */
	irq = acpi_res_irq(&res, 0);
	if (irq == NULL) {
		printf("%s: unable to find irq resource\n",
		    sc->sc_dev.dv_xname);
		return;
	}

	sc->sc_iot = aa->aa_iot;
	if (!com_is_console(aa->aa_iot, io->ar_base, &sc->sc_ioh)) {
		if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length,
		    0, &sc->sc_ioh)) {
			printf("%s: can't map i/o space\n",
			    sc->sc_dev.dv_xname);
			return;
		}
	}
	sc->sc_iobase = io->ar_base;

	printf("%s", sc->sc_dev.dv_xname);

	if (comprobe1(sc->sc_iot, sc->sc_ioh) == 0) {
		printf(": com probe failed\n");
		return;
	}

	sc->sc_frequency = 115200 * 16;

	com_attach_subr(sc);

	asc->sc_ih = isa_intr_establish(aa->aa_ic, irq->ar_irq,
	    (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL,
	    IPL_SERIAL, comintr, sc);
}