1/* $NetBSD: pcppi_acpi.c,v 1.13 2021/01/29 15:49:55 thorpej Exp $ */
2
3/*
4 * Copyright (c) 2002 Jared D. McNeill <jmcneill@invisible.ca>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. The name of the author may not be used to endorse or promote products
13 *    derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28/*
29 * ACPI pcppi(4) attachment based on lpt_acpi.c by Jared D. McNeill.
30 */
31
32#include <sys/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: pcppi_acpi.c,v 1.13 2021/01/29 15:49:55 thorpej Exp $");
34
35#include <sys/param.h>
36#include <sys/device.h>
37
38#include <dev/acpi/acpivar.h>
39
40#include <dev/isa/pcppivar.h>
41
42static int	pcppi_acpi_match(device_t, cfdata_t, void *);
43static void	pcppi_acpi_attach(device_t, device_t, void *);
44
45struct pcppi_acpi_softc {
46	struct pcppi_softc sc_pcppi;
47};
48
49CFATTACH_DECL_NEW(pcppi_acpi, sizeof(struct pcppi_acpi_softc),
50    pcppi_acpi_match, pcppi_acpi_attach, pcppi_detach, NULL);
51
52/*
53 * Supported device IDs
54 */
55
56static const struct device_compatible_entry compat_data[] = {
57	{ .compat = "PNP0800" },	/* AT-style speaker sound */
58	DEVICE_COMPAT_EOL
59};
60
61/*
62 * pcppi_acpi_match: autoconf(9) match routine
63 */
64static int
65pcppi_acpi_match(device_t parent, cfdata_t match, void *aux)
66{
67	struct acpi_attach_args *aa = aux;
68
69	return acpi_compatible_match(aa, compat_data);
70}
71
72/*
73 * pcppi_acpi_attach: autoconf(9) attach routine
74 */
75static void
76pcppi_acpi_attach(device_t parent, device_t self, void *aux)
77{
78	struct pcppi_acpi_softc *asc = device_private(self);
79	struct pcppi_softc *sc = &asc->sc_pcppi;
80	struct acpi_attach_args *aa = aux;
81	struct acpi_resources res;
82	struct acpi_io *io;
83	ACPI_STATUS rv;
84
85	sc->sc_dv = self;
86
87	/* parse resources */
88	rv = acpi_resource_parse(sc->sc_dv, aa->aa_node->ad_handle, "_CRS",
89	    &res, &acpi_resource_parse_ops_default);
90	if (ACPI_FAILURE(rv))
91		return;
92
93	/* find our i/o registers */
94	io = acpi_res_io(&res, 0);
95	if (io == NULL) {
96		aprint_error_dev(self,
97		    "unable to find i/o register resource\n");
98		goto out;
99	}
100
101	sc->sc_iot = aa->aa_iot;
102	sc->sc_size = io->ar_length;
103	if (bus_space_map(sc->sc_iot, io->ar_base, sc->sc_size,
104		    0, &sc->sc_ppi_ioh)) {
105		aprint_error_dev(self, "can't map i/o space\n");
106		goto out;
107	}
108
109	pcppi_attach(sc);
110
111 out:
112	acpi_resource_cleanup(&res);
113}
114