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/* $OpenBSD: acpisectwo.c,v 1.1 2024/07/30 19:47:06 mglocker Exp $ */
/*
* Copyright (c) 2024 Marcus Glocker <mglocker@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <dev/acpi/acpivar.h>
#include <dev/acpi/dsdt.h>
//#define ACPISECTWO_DEBUG
#ifdef ACPISECTWO_DEBUG
#define DPRINTF(x) printf x
#else
#define DPRINTF(x)
#endif
#define ACPISECTWO_REGIONSPACE_BAT 0xa1
struct acpisectwo_softc {
struct device sc_dev;
struct acpi_softc *sc_acpi;
struct aml_node *sc_node;
};
int acpisectwo_match(struct device *, void *, void *);
void acpisectwo_attach(struct device *, struct device *, void *);
const struct cfattach acpisectwo_ca = {
sizeof(struct acpisectwo_softc), acpisectwo_match, acpisectwo_attach
};
struct cfdriver acpisectwo_cd = {
NULL, "acpisectwo", DV_DULL
};
int acpisectwo_bat_opreg_handler(void *, int, uint64_t, int, uint64_t *);
int
acpisectwo_match(struct device *parent, void *match, void *aux)
{
struct acpi_attach_args *aa = aux;
struct cfdata *cf = match;
if (aa->aaa_name == NULL ||
strcmp(aa->aaa_name, cf->cf_driver->cd_name) != 0 ||
aa->aaa_table != NULL)
return 0;
return 1;
}
void
acpisectwo_attach(struct device *parent, struct device *self, void *aux)
{
struct acpisectwo_softc *sc = (struct acpisectwo_softc *)self;
struct acpi_attach_args *aa = aux;
printf("\n");
sc->sc_node = aa->aaa_node;
aml_register_regionspace(sc->sc_node, ACPISECTWO_REGIONSPACE_BAT, sc,
acpisectwo_bat_opreg_handler);
}
int
acpisectwo_bat_opreg_handler(void *cookie, int iodir, uint64_t address,
int size, uint64_t *value)
{
DPRINTF(("%s: iodir=%d, address=0x%llx, size=%d\n",
__func__, iodir, address, size));
*value = 0;
return 0;
}
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