/* $NetBSD: attimer_acpi.c,v 1.15 2021/01/29 15:49:55 thorpej Exp $ */
/*
* Copyright (c) 2005 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Quentin Garnier.
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/*
* Copyright (c) 2002 Jared D. McNeill <
[email protected]>
* 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.
*/
/*
* ACPI attimer(4) attachment based on lpt_acpi.c by Jared D. McNeill.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: attimer_acpi.c,v 1.15 2021/01/29 15:49:55 thorpej Exp $");
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <dev/acpi/acpivar.h>
#include <dev/ic/attimervar.h>
static int attimer_acpi_match(device_t, cfdata_t, void *);
static void attimer_acpi_attach(device_t, device_t, void *);
CFATTACH_DECL3_NEW(attimer_acpi, sizeof(struct attimer_softc),
attimer_acpi_match, attimer_acpi_attach, attimer_detach, NULL, NULL, NULL,
DVF_DETACH_SHUTDOWN);
/*
* Supported device IDs
*/
static const struct device_compatible_entry compat_data[] = {
{ .compat = "PNP0100" }, /* AT Timer */
DEVICE_COMPAT_EOL
};
/*
* attimer_acpi_match: autoconf(9) match routine
*/
static int
attimer_acpi_match(device_t parent, cfdata_t match, void *aux)
{
struct acpi_attach_args *aa = aux;
return acpi_compatible_match(aa, compat_data);
}
/*
* attimer_acpi_attach: autoconf(9) attach routine
*/
static void
attimer_acpi_attach(device_t parent, device_t self, void *aux)
{
struct attimer_softc *sc = device_private(self);
struct acpi_attach_args *aa = aux;
struct acpi_resources res;
struct acpi_io *io;
ACPI_STATUS rv;
sc->sc_dev = self;
/* parse resources */
rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS",
&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) {
aprint_error_dev(self,
"unable to find i/o register resource\n");
goto out;
}
sc->sc_iot = aa->aa_iot;
sc->sc_size = io->ar_length;
if (bus_space_map(sc->sc_iot, io->ar_base, sc->sc_size,
0, &sc->sc_ioh) != 0) {
aprint_error_dev(self, "can't map i/o space\n");
goto out;
}
attimer_attach(sc);
out:
acpi_resource_cleanup(&res);
}
