static void
acpi_cmbat_get_bst(void *arg)
{
struct acpi_cmbat_softc *sc;
ACPI_STATUS as;
ACPI_OBJECT *res;
ACPI_HANDLE h;
ACPI_BUFFER bst_buffer;
device_t dev;
ACPI_SERIAL_ASSERT(cmbat);
dev = arg;
sc = device_get_softc(dev);
h = acpi_get_handle(dev);
bst_buffer.Pointer = NULL;
bst_buffer.Length = ACPI_ALLOCATE_BUFFER;
if (!acpi_cmbat_info_expired(&sc->bst_lastupdated))
goto end;
as = AcpiEvaluateObject(h, "_BST", NULL, &bst_buffer);
if (ACPI_FAILURE(as)) {
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"error fetching current battery status -- %s\n",
AcpiFormatException(as));
goto end;
}
res = (ACPI_OBJECT *)bst_buffer.Pointer;
if (!ACPI_PKG_VALID(res, 4)) {
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"battery status corrupted\n");
goto end;
}
if (acpi_PkgInt32(res, 0, &sc->bst.state) != 0)
goto end;
if (acpi_PkgInt32(res, 1, &sc->bst.rate) != 0)
goto end;
if (acpi_PkgInt32(res, 2, &sc->bst.cap) != 0)
goto end;
if (acpi_PkgInt32(res, 3, &sc->bst.volt) != 0)
goto end;
acpi_cmbat_info_updated(&sc->bst_lastupdated);
/* XXX If all batteries are critical, perhaps we should suspend. */
if (sc->bst.state & ACPI_BATT_STAT_CRITICAL) {
if ((sc->flags & ACPI_BATT_STAT_CRITICAL) == 0) {
sc->flags |= ACPI_BATT_STAT_CRITICAL;
device_printf(dev, "critically low charge!\n");
}
} else
sc->flags &= ~ACPI_BATT_STAT_CRITICAL;
end:
if (bst_buffer.Pointer != NULL)
AcpiOsFree(bst_buffer.Pointer);
}
static void
acpi_cmbat_get_bif(void *context)
{
device_t dev;
struct acpi_cmbat_softc *sc;
ACPI_STATUS as;
ACPI_OBJECT *res, *tmp;
ACPI_HANDLE h;
ACPI_BUFFER bif_buffer;
dev = context;
sc = device_get_softc(dev);
h = acpi_get_handle(dev);
bif_buffer.Pointer = NULL;
if (!acpi_cmbat_info_expired(&sc->bif_lastupdated)) {
return;
}
if (sc->bif_updating) {
return;
}
sc->bif_updating = 1;
bif_buffer.Length = ACPI_ALLOCATE_BUFFER;
if (ACPI_FAILURE(as = AcpiEvaluateObject(h, "_BIF", NULL, &bif_buffer))) {
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"error fetching current battery info -- %s\n",
AcpiFormatException(as));
goto end;
}
res = (ACPI_OBJECT *)bif_buffer.Pointer;
if ((res == NULL) || (res->Type != ACPI_TYPE_PACKAGE) || (res->Package.Count != 13)) {
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"battery info corrupted\n");
goto end;
}
PKG_GETINT(res, tmp, 0, sc->bif.unit, end);
PKG_GETINT(res, tmp, 1, sc->bif.dcap, end);
PKG_GETINT(res, tmp, 2, sc->bif.lfcap, end);
PKG_GETINT(res, tmp, 3, sc->bif.btech, end);
PKG_GETINT(res, tmp, 4, sc->bif.dvol, end);
PKG_GETINT(res, tmp, 5, sc->bif.wcap, end);
PKG_GETINT(res, tmp, 6, sc->bif.lcap, end);
PKG_GETINT(res, tmp, 7, sc->bif.gra1, end);
PKG_GETINT(res, tmp, 8, sc->bif.gra2, end);
PKG_GETSTR(res, tmp, 9, sc->bif.model, ACPI_CMBAT_MAXSTRLEN, end);
PKG_GETSTR(res, tmp, 10, sc->bif.serial, ACPI_CMBAT_MAXSTRLEN, end);
PKG_GETSTR(res, tmp, 11, sc->bif.type, ACPI_CMBAT_MAXSTRLEN, end);
PKG_GETSTR(res, tmp, 12, sc->bif.oeminfo, ACPI_CMBAT_MAXSTRLEN, end);
acpi_cmbat_info_updated(&sc->bif_lastupdated);
end:
if (bif_buffer.Pointer != NULL)
AcpiOsFree(bif_buffer.Pointer);
sc->bif_updating = 0;
}
static void
acpi_cmbat_get_bst(void *context)
{
device_t dev;
struct acpi_cmbat_softc *sc;
ACPI_STATUS as;
ACPI_OBJECT *res, *tmp;
ACPI_HANDLE h;
ACPI_BUFFER bst_buffer;
dev = context;
sc = device_get_softc(dev);
h = acpi_get_handle(dev);
bst_buffer.Pointer = NULL;
if (!acpi_cmbat_info_expired(&sc->bst_lastupdated)) {
return;
}
if (sc->bst_updating) {
return;
}
sc->bst_updating = 1;
bst_buffer.Length = ACPI_ALLOCATE_BUFFER;
if (ACPI_FAILURE(as = AcpiEvaluateObject(h, "_BST", NULL, &bst_buffer))) {
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"error fetching current battery status -- %s\n",
AcpiFormatException(as));
goto end;
}
res = (ACPI_OBJECT *)bst_buffer.Pointer;
if ((res == NULL) || (res->Type != ACPI_TYPE_PACKAGE) || (res->Package.Count != 4)) {
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"battery status corrupted\n");
goto end;
}
PKG_GETINT(res, tmp, 0, sc->bst.state, end);
PKG_GETINT(res, tmp, 1, sc->bst.rate, end);
PKG_GETINT(res, tmp, 2, sc->bst.cap, end);
PKG_GETINT(res, tmp, 3, sc->bst.volt, end);
acpi_cmbat_info_updated(&sc->bst_lastupdated);
end:
if (bst_buffer.Pointer != NULL)
AcpiOsFree(bst_buffer.Pointer);
sc->bst_updating = 0;
}
int
acpi_cmbat_get_battinfo(int unit, struct acpi_battinfo *battinfo)
{
int error;
device_t dev;
struct acpi_cmbat_softc *sc;
if (unit == -1) {
return (acpi_cmbat_get_total_battinfo(battinfo));
}
if (acpi_cmbat_info_expired(&acpi_cmbat_info_lastupdated)) {
error = acpi_cmbat_get_total_battinfo(battinfo);
if (error) {
goto out;
}
}
error = 0;
if (unit >= acpi_cmbat_units) {
error = ENXIO;
goto out;
}
if ((dev = devclass_get_device(acpi_cmbat_devclass, unit)) == NULL) {
error = ENXIO;
goto out;
}
if ((sc = device_get_softc(dev)) == NULL) {
error = ENXIO;
goto out;
}
if (!sc->present) {
battinfo->cap = -1;
battinfo->min = -1;
battinfo->state = ACPI_BATT_STAT_NOT_PRESENT;
} else {
battinfo->cap = sc->cap;
battinfo->min = sc->min;
battinfo->state = sc->bst.state;
}
out:
return (error);
}
