118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
/* $NetBSD: hpet_acpi.c,v 1.3 2008/03/21 13:28:14 xtraeme Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2006 Nicolas Joly
|
|
* 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. 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.
|
|
* 3. 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 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: hpet_acpi.c,v 1.3 2008/03/21 13:28:14 xtraeme Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <sys/bus.h>
|
|
|
|
#include <dev/acpi/acpica.h>
|
|
#include <dev/acpi/acpireg.h>
|
|
#include <dev/acpi/acpivar.h>
|
|
|
|
#include <sys/time.h>
|
|
#include <sys/timetc.h>
|
|
|
|
#include <dev/ic/hpetvar.h>
|
|
|
|
static int hpet_acpi_match(device_t, cfdata_t, void *);
|
|
static void hpet_acpi_attach(device_t, device_t, void *);
|
|
|
|
|
|
CFATTACH_DECL_NEW(hpet_acpi, sizeof(struct hpet_softc), hpet_acpi_match,
|
|
hpet_acpi_attach, NULL, NULL);
|
|
|
|
/*
|
|
* Supported device IDs
|
|
*/
|
|
|
|
static const char * const hpet_acpi_ids[] = {
|
|
"PNP0103",
|
|
NULL
|
|
};
|
|
|
|
/*
|
|
* hpet_acpi_match: autoconf(9) match routine
|
|
*/
|
|
static int
|
|
hpet_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, hpet_acpi_ids);
|
|
}
|
|
|
|
static void
|
|
hpet_acpi_attach(device_t parent, device_t self, void *aux)
|
|
{
|
|
struct hpet_softc *sc = device_private(self);
|
|
struct acpi_attach_args *aa = aux;
|
|
struct acpi_resources res;
|
|
struct acpi_mem *mem;
|
|
ACPI_STATUS rv;
|
|
|
|
aprint_naive("\n");
|
|
aprint_normal("\n");
|
|
|
|
/* 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 mem registers */
|
|
mem = acpi_res_mem(&res, 0);
|
|
if (mem == NULL) {
|
|
aprint_error_dev(self,
|
|
"unable to find mem register resource\n");
|
|
goto out;
|
|
}
|
|
|
|
sc->sc_memt = aa->aa_memt;
|
|
if (bus_space_map(sc->sc_memt, mem->ar_base, mem->ar_length,
|
|
0, &sc->sc_memh)) {
|
|
aprint_error_dev(self, "can't map mem space\n");
|
|
goto out;
|
|
}
|
|
|
|
hpet_attach_subr(self);
|
|
|
|
out:
|
|
acpi_resource_cleanup(&res);
|
|
}
|