/* $NetBSD: spic_acpi.c,v 1.9 2021/01/29 15:49:55 thorpej Exp $ */

/* $NetBSD: spic_acpi.c,v 1.9 2021/01/29 15:49:55 thorpej Exp $ */

/*
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson ([email protected]).
*
* 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.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: spic_acpi.c,v 1.9 2021/01/29 15:49:55 thorpej Exp $");

#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>

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

#include <dev/ic/spicvar.h>

#define _COMPONENT ACPI_RESOURCE_COMPONENT
ACPI_MODULE_NAME ("spic_acpi")

struct spic_acpi_softc {
struct spic_softc sc_spic; /* spic device */

struct acpi_devnode *sc_node; /* our ACPI devnode */

void *sc_ih;
};

static const struct device_compatible_entry compat_data[] = {
{ .compat = "SNY6001" },
DEVICE_COMPAT_EOL
};

static int spic_acpi_match(device_t, cfdata_t, void *);
static void spic_acpi_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(spic_acpi, sizeof(struct spic_acpi_softc),
spic_acpi_match, spic_acpi_attach, NULL, NULL);

static int
spic_acpi_match(device_t parent, cfdata_t match, void *aux)
{
struct acpi_attach_args *aa = aux;

return acpi_compatible_match(aa, compat_data);
}

static void
spic_acpi_attach(device_t parent, device_t self, void *aux)
{
struct spic_acpi_softc *sc = device_private(self);
struct acpi_attach_args *aa = aux;
struct acpi_io *io;
struct acpi_irq *irq;
struct acpi_resources res;

ACPI_STATUS rv;

sc->sc_spic.sc_dev = self;
sc->sc_node = aa->aa_node;

/* Parse our resources. */
rv = acpi_resource_parse(self, sc->sc_node->ad_handle,
"_CRS", &res, &acpi_resource_parse_ops_default);
if (ACPI_FAILURE(rv))
return;

sc->sc_spic.sc_iot = aa->aa_iot;
io = acpi_res_io(&res, 0);
if (io == NULL) {
aprint_error_dev(self, "unable to find io resource\n");
goto out;
}
if (bus_space_map(sc->sc_spic.sc_iot, io->ar_base, io->ar_length,
0, &sc->sc_spic.sc_ioh) != 0) {
aprint_error_dev(self, "unable to map data register\n");
goto out;
}
irq = acpi_res_irq(&res, 0);
if (irq == NULL) {
aprint_error_dev(self, "unable to find irq resource\n");
/* XXX unmap */
goto out;
}
#if 0
sc->sc_ih = acpi_intr_establish(self,
(uint64_t)(uintptr_t)aa->aa_node->ad_handle,
IPL_TTY, false, spic_intr, sc, device_xname(self));
if (sc->sc_ih == NULL) {
aprint_error_dev(self, "unable to establish interrupt\n");
goto out;
}
#endif

if (!pmf_device_register(self, spic_suspend, spic_resume))
aprint_error_dev(self, "couldn't establish power handler\n");
else
pmf_class_input_register(self);

spic_attach(&sc->sc_spic);
out:
acpi_resource_cleanup(&res);
}