/* XXX There should be a cleaner way to do this locking. */
static void
acpi_cmbat_get_bif_task(void *arg)
{
ACPI_SERIAL_BEGIN(cmbat);
acpi_cmbat_get_bif(arg);
ACPI_SERIAL_END(cmbat);
}
static int
acpi_cmbat_ioctl(u_long cmd, caddr_t addr, void *arg)
{
device_t dev;
union acpi_battery_ioctl_arg *ioctl_arg;
struct acpi_cmbat_softc *sc;
struct acpi_bif *bifp;
struct acpi_bst *bstp;
ioctl_arg = (union acpi_battery_ioctl_arg *)addr;
if ((dev = devclass_get_device(acpi_cmbat_devclass,
ioctl_arg->unit)) == NULL) {
return (ENXIO);
}
if ((sc = device_get_softc(dev)) == NULL) {
return (ENXIO);
}
/*
* No security check required: information retrieval only. If
* new functions are added here, a check might be required.
*/
switch (cmd) {
case ACPIIO_CMBAT_GET_BIF:
acpi_cmbat_get_bif(dev);
bifp = &ioctl_arg->bif;
bifp->unit = sc->bif.unit;
bifp->dcap = sc->bif.dcap;
bifp->lfcap = sc->bif.lfcap;
bifp->btech = sc->bif.btech;
bifp->dvol = sc->bif.dvol;
bifp->wcap = sc->bif.wcap;
bifp->lcap = sc->bif.lcap;
bifp->gra1 = sc->bif.gra1;
bifp->gra2 = sc->bif.gra2;
strncpy(bifp->model, sc->bif.model, sizeof(sc->bif.model));
strncpy(bifp->serial, sc->bif.serial, sizeof(sc->bif.serial));
strncpy(bifp->type, sc->bif.type, sizeof(sc->bif.type));
strncpy(bifp->oeminfo, sc->bif.oeminfo, sizeof(sc->bif.oeminfo));
break;
case ACPIIO_CMBAT_GET_BST:
bstp = &ioctl_arg->bst;
if (acpi_BatteryIsPresent(dev)) {
acpi_cmbat_get_bst(dev);
bstp->state = sc->bst.state;
bstp->rate = sc->bst.rate;
bstp->cap = sc->bst.cap;
bstp->volt = sc->bst.volt;
} else
bstp->state = ACPI_BATT_STAT_NOT_PRESENT;
break;
}
return (0);
}
static void
acpi_cmbat_init_battery(void *arg)
{
struct acpi_cmbat_softc *sc;
int retry, valid;
device_t dev;
dev = (device_t)arg;
sc = device_get_softc(dev);
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"battery initialization start\n");
/*
* Try repeatedly to get valid data from the battery. Since the
* embedded controller isn't always ready just after boot, we may have
* to wait a while.
*/
for (retry = 0; retry < ACPI_CMBAT_RETRY_MAX; retry++, AcpiOsSleep(10000)) {
/* batteries on DOCK can be ejected w/ DOCK during retrying */
if (!device_is_attached(dev))
return;
if (!acpi_BatteryIsPresent(dev))
continue;
/*
* Only query the battery if this is the first try or the specific
* type of info is still invalid.
*/
ACPI_SERIAL_BEGIN(cmbat);
if (retry == 0 || !acpi_battery_bst_valid(&sc->bst)) {
timespecclear(&sc->bst_lastupdated);
acpi_cmbat_get_bst(dev);
}
if (retry == 0 || !acpi_battery_bif_valid(&sc->bif))
acpi_cmbat_get_bif(dev);
valid = acpi_battery_bst_valid(&sc->bst) &&
acpi_battery_bif_valid(&sc->bif);
ACPI_SERIAL_END(cmbat);
if (valid)
break;
}
if (retry == ACPI_CMBAT_RETRY_MAX) {
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"battery initialization failed, giving up\n");
} else {
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"battery initialization done, tried %d times\n", retry + 1);
}
}
static void
acpi_cmbat_init_battery(void *arg)
{
int retry;
device_t dev = (device_t)arg;
struct acpi_cmbat_softc *sc = device_get_softc(dev);
#define ACPI_CMBAT_RETRY_MAX 6
if (sc->initializing) {
return;
}
sc->initializing = 1;
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"battery initialization start\n");
for (retry = 0; retry < ACPI_CMBAT_RETRY_MAX; retry++, AcpiOsSleep(10, 0)) {
sc->present = acpi_BatteryIsPresent(dev);
if (!sc->present) {
continue;
}
timespecclear(&sc->bst_lastupdated);
timespecclear(&sc->bif_lastupdated);
acpi_cmbat_get_bst(dev);
if (!acpi_cmbat_is_bst_valid(&sc->bst)) {
continue;
}
acpi_cmbat_get_bif(dev);
if (!acpi_cmbat_is_bif_valid(&sc->bif)) {
continue;
}
break;
}
if (retry == ACPI_CMBAT_RETRY_MAX)
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"battery initialization failed, giving up\n");
else
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"battery initialization done, tried %d times\n",
retry+1);
sc->initializing = 0;
}