NetBSD/sys/dev/acpi/ug_acpi.c

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/* $NetBSD: ug_acpi.c,v 1.5 2009/02/17 12:46:01 jmcneill Exp $ */
/*
* Copyright (c) 2007 Mihai Chelaru <kefren@netbsd.ro>
* 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.
*/
2007-05-08 21:17:14 +04:00
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ug_acpi.c,v 1.5 2009/02/17 12:46:01 jmcneill Exp $");
2007-05-08 21:17:14 +04:00
#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/envsys.h>
#include <sys/bus.h>
#include <dev/acpi/acpica.h>
#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/sysmon/sysmonvar.h>
#include <dev/ic/ugreg.h>
#include <dev/ic/ugvar.h>
/* autoconf(9) functions */
static int ug_acpi_match(device_t, cfdata_t, void *);
static void ug_acpi_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(ug_acpi, sizeof(struct ug_softc), ug_acpi_match,
ug_acpi_attach, NULL, NULL);
/*
* Supported devices
* XXX: only uGuru 2005 for now
*/
static const char* const ug_acpi_ids[] = {
"ABT2005", /* uGuru 2005 */
NULL
};
static int
ug_acpi_match(device_t parent, cfdata_t 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, ug_acpi_ids);
}
static void
ug_acpi_attach(device_t parent, device_t self, void *aux)
{
struct ug_softc *sc = device_private(self);
struct acpi_attach_args *aa = aux;
struct acpi_resources res;
struct acpi_io *io;
bus_space_handle_t ioh;
ACPI_STATUS rv;
/* parse resources */
rv = acpi_resource_parse(self, 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");
acpi_resource_cleanup(&res);
return;
}
if (bus_space_map(aa->aa_iot, io->ar_base, io->ar_length,
0, &ioh)) {
aprint_error_dev(self, "can't map i/o space\n");
acpi_resource_cleanup(&res);
return;
}
aprint_normal("%s", device_xname(self));
sc->version = 2; /* uGuru 2005 */
sc->sc_ioh = ioh;
sc->sc_iot = aa->aa_iot;
ug2_attach(self);
acpi_resource_cleanup(&res);
}