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/* $OpenBSD: acpibat.c,v 1.13 2006/02/17 00:45:27 marco Exp $ */
/*
* Copyright (c) 2005 Marco Peereboom <marco@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 <sys/device.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/acpi/acpidev.h>
#include <dev/acpi/amltypes.h>
#include <dev/acpi/dsdt.h>
int acpibat_match(struct device *, void *, void *);
void acpibat_attach(struct device *, struct device *, void *);
struct acpibat_softc {
struct device sc_dev;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
struct acpi_softc *sc_acpi;
struct aml_node *sc_devnode;
struct acpibat_bif sc_bif;
struct acpibat_bst sc_bst;
};
struct cfattach acpibat_ca = {
sizeof(struct acpibat_softc), acpibat_match, acpibat_attach
};
struct cfdriver acpibat_cd = {
NULL, "acpibat", DV_DULL
};
int acpibat_getbif(struct acpibat_softc *);
int acpibat_getbst(struct acpibat_softc *);
int
acpibat_match(struct device *parent, void *match, void *aux)
{
struct acpi_attach_args *aa = aux;
struct cfdata *cf = match;
/* sanity */
if (aa->aaa_name == NULL ||
strcmp(aa->aaa_name, cf->cf_driver->cd_name) != 0 ||
aa->aaa_table != NULL)
return (0);
return (1);
}
void
acpibat_attach(struct device *parent, struct device *self, void *aux)
{
struct acpibat_softc *sc = (struct acpibat_softc *) self;
struct acpi_attach_args *aa = aux;
sc->sc_acpi = (struct acpi_softc *)parent;
sc->sc_devnode = aa->aaa_node->child;
if (acpibat_getbif(sc))
return;
acpibat_getbst(sc);
printf(": model: %s serial: %s type: %s oem: %s\n",
sc->sc_bif.bif_model,
sc->sc_bif.bif_serial,
sc->sc_bif.bif_type,
sc->sc_bif.bif_oem);
}
int
acpibat_getbif(struct acpibat_softc *sc)
{
struct aml_value res, env;
struct acpi_context *ctx;
memset(&res, 0, sizeof(res));
memset(&env, 0, sizeof(env));
ctx = NULL;
if (aml_eval_name(sc->sc_acpi, sc->sc_devnode, "_STA", &res, &env)) {
dnprintf(10, "%s: no _STA\n",
DEVNAME(sc));
return (1);
}
if (!(res.v_integer & STA_BATTERY)) {
printf(": battery not present\n");
return (1);
}
if (aml_eval_name(sc->sc_acpi, sc->sc_devnode, "_BIF", &res, &env)) {
dnprintf(50, "%s: no _BIF\n",
DEVNAME(sc));
return (1);
}
if (res.length != 13) {
printf("%s: invalid _BIF, battery information not saved\n",
DEVNAME(sc));
return (1);
}
sc->sc_bif.bif_power_unit = aml_val2int(ctx, res.v_package[0]);
sc->sc_bif.bif_capacity = aml_val2int(ctx, res.v_package[1]);
sc->sc_bif.bif_last_capacity = aml_val2int(ctx, res.v_package[2]);
sc->sc_bif.bif_technology = aml_val2int(ctx, res.v_package[3]);
sc->sc_bif.bif_voltage = aml_val2int(ctx, res.v_package[4]);
sc->sc_bif.bif_warning = aml_val2int(ctx, res.v_package[5]);
sc->sc_bif.bif_low = aml_val2int(ctx, res.v_package[6]);
sc->sc_bif.bif_cap_granu1 = aml_val2int(ctx, res.v_package[7]);
sc->sc_bif.bif_cap_granu2 = aml_val2int(ctx, res.v_package[8]);
sc->sc_bif.bif_model = aml_strval(res.v_package[9]);
sc->sc_bif.bif_serial = aml_strval(res.v_package[10]);
sc->sc_bif.bif_type = aml_strval(res.v_package[11]);
sc->sc_bif.bif_oem = aml_strval(res.v_package[12]);
dnprintf(10, "power_unit: %u capacity: %u last_cap: %u tech: %u "
"volt: %u warn: %u low: %u gran1: %u gran2: %d model: %s "
"serial: %s type: %s oem: %s\n",
sc->sc_bif.bif_power_unit,
sc->sc_bif.bif_capacity,
sc->sc_bif.bif_last_capacity,
sc->sc_bif.bif_technology,
sc->sc_bif.bif_voltage,
sc->sc_bif.bif_warning,
sc->sc_bif.bif_low,
sc->sc_bif.bif_cap_granu1,
sc->sc_bif.bif_cap_granu2,
sc->sc_bif.bif_model,
sc->sc_bif.bif_serial,
sc->sc_bif.bif_type,
sc->sc_bif.bif_oem);
return (0);
}
int
acpibat_getbst(struct acpibat_softc *sc)
{
struct aml_value res, env;
struct acpi_context *ctx;
memset(&res, 0, sizeof(res));
memset(&env, 0, sizeof(env));
ctx = NULL;
if (aml_eval_name(sc->sc_acpi, sc->sc_devnode, "_BST", &res, &env)) {
dnprintf(50, "%s: no _BST\n",
DEVNAME(sc));
return (1);
}
if (res.length != 4) {
printf("%s: invalid _BST, battery status not saved\n",
DEVNAME(sc));
return (1);
}
sc->sc_bst.bst_state = aml_val2int(ctx, res.v_package[0]);
sc->sc_bst.bst_rate = aml_val2int(ctx, res.v_package[1]);
sc->sc_bst.bst_capacity = aml_val2int(ctx, res.v_package[2]);
sc->sc_bst.bst_voltage = aml_val2int(ctx, res.v_package[3]);
dnprintf(10, "state: %u rate: %u cap: %u volt: %u ",
sc->sc_bst.bst_state,
sc->sc_bst.bst_rate,
sc->sc_bst.bst_capacity,
sc->sc_bst.bst_voltage);
return (0);
}
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