void NvBatteryEventHandlerThread(void *args)
{
NvU8 BatteryState = 0, BatteryEvent = 0;
NvBool suspend_flag;
for (;;) {
NvOsSemaphoreWaitTimeout(batt_dev->hOdmSemaphore,
batt_dev->batt_status_poll_period);
if (batt_dev->exitThread)
break;
if (!batt_dev->hOdmBattDev)
continue;
NvOsMutexLock(batt_dev->hBattEventMutex);
suspend_flag = batt_dev->inSuspend;
NvOsMutexUnlock(batt_dev->hBattEventMutex);
if (suspend_flag)
continue;
pr_info("\tBATTERY: polling battery information! --->>>\n");
NvOdmBatteryGetBatteryStatus(batt_dev->hOdmBattDev,
NvOdmBatteryInst_Main,
&BatteryState);
NvOdmBatteryGetEvent(batt_dev->hOdmBattDev, &BatteryEvent);
if ((BatteryState == NVODM_BATTERY_STATUS_UNKNOWN) ||
(BatteryEvent == NvOdmBatteryEventType_Num)) {
/* Do nothing */
} else {
if (BatteryEvent & NvOdmBatteryEventType_RemainingCapacityAlarm) {
if (BatteryState == (NVODM_BATTERY_STATUS_CRITICAL |
NVODM_BATTERY_STATUS_VERY_CRITICAL |
NVODM_BATTERY_STATUS_DISCHARGING)) {
pr_info("nvec_battery:calling kernel_power_off...\n");
kernel_power_off();
}
} else {
/* Update the battery and power supply info for other events */
power_supply_changed(&tegra_power_supplies[NvCharger_Type_Battery]);
//power_supply_changed(&tegra_power_supplies[NvCharger_Type_USB]); //
power_supply_changed(&tegra_power_supplies[NvCharger_Type_AC]);
}
}
}
}
void NvBatteryEventHandlerThread(void *args)
{
NvU8 BatteryState = 0, BatteryEvent = 0;
for (;;) {
NvOsSemaphoreWait(batt_dev->hOdmSemaphore);
if (batt_dev->exitThread)
break;
if (!batt_dev->hOdmBattDev)
continue;
NvOdmBatteryGetBatteryStatus(batt_dev->hOdmBattDev,
NvOdmBatteryInst_Main,
&BatteryState);
NvOdmBatteryGetEvent(batt_dev->hOdmBattDev, &BatteryEvent);
NvOsDebugPrintf("ec_rs BatteryEvent = 0x%x\n", BatteryEvent);
if ((BatteryState == NVODM_BATTERY_STATUS_UNKNOWN) ||
(BatteryEvent == NvOdmBatteryEventType_Num)) {
/* Do nothing */
} else {
//if (BatteryEvent & NvOdmBatteryEventType_RemainingCapacityAlarm) {
if (BatteryEvent & NvOdmBatteryEventType_LowBatteryIntr) {
//Daniel 20100701, just force off while receive LOW_BAT# interrupt(not low capacity alarm).
//if (BatteryState == (NVODM_BATTERY_STATUS_CRITICAL |
// NVODM_BATTERY_STATUS_VERY_CRITICAL |
// NVODM_BATTERY_STATUS_DISCHARGING)) {
// pr_info("nvec_battery:calling kernel_power_off...\n");
NvOsDebugPrintf("ec_rs batt low battery interrupt.\r\n");
// kernel_power_off();
//}
} else {
/* Update the battery and power supply info for other events */
power_supply_changed(&tegra_power_supplies[NvPowerSupply_TypeBattery]);
power_supply_changed(&tegra_power_supplies[NvPowerSupply_TypeAC]);
}
}
}
}
static int tegra_battery_get_property(struct power_supply *psy,
enum power_supply_property psp, union power_supply_propval *val)
{
NvU8 name[BATTERY_INFO_NAME_LEN] = {0};
int technology = 0;
NvU8 state = 0;
static NvU8 prop_state = 0; //
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
if (!NvOdmBatteryGetBatteryStatus(batt_dev->hOdmBattDev,
NvOdmBatteryInst_Main, &state))
return -ENODEV;
prop_state = state; //
if (state == NVODM_BATTERY_STATUS_UNKNOWN) {
batt_dev->present = NV_FALSE;
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
} else if (state == NVODM_BATTERY_STATUS_NO_BATTERY) {
batt_dev->present = NV_FALSE;
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
} else if (state & NVODM_BATTERY_STATUS_CHARGING) {
batt_dev->present = NV_TRUE;
val->intval = POWER_SUPPLY_STATUS_CHARGING;
} else if (state & NVODM_BATTERY_STATUS_DISCHARGING) {
batt_dev->present = NV_TRUE;
val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
} else if (state & NVODM_BATTERY_STATUS_IDLE) {
batt_dev->present = NV_TRUE;
val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
}
if (!batt_dev->present ) {
batt_dev->voltage = 0;
batt_dev->current_ma = 0;
batt_dev->current_avg = 0;
batt_dev->temp = 0;
batt_dev->percent_remain = 0;
batt_dev->lifetime = 0;
batt_dev->consumed = 0;
batt_dev->capacity = 0;
batt_dev->capacity_crit = 0;
batt_dev->capacity_remain = 0;
}
else {
/*
* Getting the battery info once here so for the other property
* requests there will not be lot of ec req
*/
if (tegra_battery_data(NvOdmBatteryInst_Main)) {
if (batt_dev->percent_remain == 100) {
val->intval = POWER_SUPPLY_STATUS_FULL;
}
else if (batt_dev->capacity == 0) {
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
}
}
}
break;
case POWER_SUPPLY_PROP_HEALTH:
if (batt_dev->present)
val->intval = POWER_SUPPLY_HEALTH_GOOD;
else
val->intval = POWER_SUPPLY_HEALTH_UNKNOWN;
break;
case POWER_SUPPLY_PROP_PRESENT:
//if (!NvOdmBatteryGetBatteryStatus(batt_dev->hOdmBattDev,
// NvOdmBatteryInst_Main, &state))
// return -EINVAL; //
state = prop_state; //
if (state == NVODM_BATTERY_STATUS_UNKNOWN) {
batt_dev->present = NV_FALSE;
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
} else {
if (state == NVODM_BATTERY_STATUS_NO_BATTERY) {
batt_dev->present = NV_FALSE;
val->intval = NV_FALSE;
}
if (state & (NVODM_BATTERY_STATUS_HIGH |
NVODM_BATTERY_STATUS_LOW |
NVODM_BATTERY_STATUS_CRITICAL |
NVODM_BATTERY_STATUS_CHARGING |
NVODM_BATTERY_STATUS_DISCHARGING |
NVODM_BATTERY_STATUS_IDLE)) {
batt_dev->present = NV_TRUE;
val->intval = NV_TRUE;
}
}
break;
case POWER_SUPPLY_PROP_TECHNOLOGY:
tegra_get_battery_tech(&technology, NvOdmBatteryInst_Main);
val->intval = technology;
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = batt_dev->percent_remain;
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
val->intval = batt_dev->voltage*1000;
break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
val->intval = batt_dev->current_ma;
break;
case POWER_SUPPLY_PROP_CURRENT_AVG:
val->intval = batt_dev->current_avg;
break;
case POWER_SUPPLY_PROP_CHARGE_NOW:
val->intval = batt_dev->capacity_remain;
break;
case POWER_SUPPLY_PROP_CHARGE_FULL:
val->intval = batt_dev->capacity;
break;
case POWER_SUPPLY_PROP_CHARGE_EMPTY:
val->intval = batt_dev->capacity_crit;
break;
case POWER_SUPPLY_PROP_TEMP:
/* returned value is degrees C * 10 */
val->intval = batt_dev->temp/10;
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
if (!NvOdmBatteryGetModel(batt_dev->hOdmBattDev,
NvOdmBatteryInst_Main, name))
return -EINVAL;
strncpy((char *)val->strval, name, strlen(name));
break;
case POWER_SUPPLY_PROP_MANUFACTURER:
if (!NvOdmBatteryGetManufacturer(batt_dev->hOdmBattDev,
NvOdmBatteryInst_Main, name))
return -EINVAL;
strncpy((char *)val->strval, name, strlen(name));
break;
default:
return -EINVAL;
}
return 0;
}
static int tegra_battery_get_property(struct power_supply *psy,
enum power_supply_property psp, union power_supply_propval *val)
{
NvU8 name[BATTERY_INFO_NAME_LEN] = {0};
int technology = 0;
NvU8 state = 0;
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
if (!NvOdmBatteryGetBatteryStatus(batt_dev->hOdmBattDev,
NvOdmBatteryInst_Main, &state))
return -ENODEV;
if (state == NVODM_BATTERY_STATUS_UNKNOWN) {
batt_dev->present = NV_FALSE;
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
} else if (state == NVODM_BATTERY_STATUS_NO_BATTERY) {
batt_dev->present = NV_FALSE;
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
} else if (state & NVODM_BATTERY_STATUS_CHARGING) {
batt_dev->present = NV_TRUE;
val->intval = POWER_SUPPLY_STATUS_CHARGING;
} else if (state & NVODM_BATTERY_STATUS_DISCHARGING) {
batt_dev->present = NV_TRUE;
val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
} else if (state & NVODM_BATTERY_STATUS_IDLE) {
batt_dev->present = NV_TRUE;
val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
}
if (!batt_dev->present ) {
batt_dev->voltage = 0;
batt_dev->current_ma = 0;
batt_dev->current_avg = 0;
batt_dev->temp = 0;
batt_dev->percent_remain = 0;
batt_dev->lifetime = 0;
batt_dev->consumed = 0;
batt_dev->capacity = 0;
batt_dev->capacity_crit = 0;
batt_dev->capacity_remain = 0;
}
else {
/*
* Getting the battery info once here so for the other property
* requests there will not be lot of ec req
*/
if (tegra_battery_data(NvOdmBatteryInst_Main)) {
if (batt_dev->percent_remain == 100) {
val->intval = POWER_SUPPLY_STATUS_FULL;
}
//Daniel 20100903, if (batt<=5%) and batt present and discharging, lock suspend.
if((batt_dev->percent_remain <= 5) && (val->intval == POWER_SUPPLY_STATUS_DISCHARGING)) {
if(mylock_flag == NV_FALSE) {
wake_lock(&mylock);
mylock_flag = NV_TRUE;
NvOsDebugPrintf("ec_rs batt 5% wake_lock\n");
}
//Daniel 20100918, if (batt<=4%) and send batt=0% to trigger shutdown or just call kernel_power_off();.
if(batt_dev->percent_remain <= 4) {
NvOsDebugPrintf("ec_rs low_batt_cnt = %d\n", low_batt_cnt);
batt_dev->percent_remain = 0; //to trigger APP shutdown procedure (workaround, app 5% shutdown isn't ready).
low_batt_cnt++;
if(low_batt_cnt > 8) {
//do it on next battery polling
NvOsDebugPrintf("ec_rs kernel_power_off.\r\n");
msleep(500);
kernel_power_off();
}
}
else
low_batt_cnt = 0;
}
else if(((batt_dev->percent_remain > 5) || (val->intval != POWER_SUPPLY_STATUS_DISCHARGING))) {
if(mylock_flag == NV_TRUE) {
wake_unlock(&mylock);
mylock_flag = NV_FALSE;
NvOsDebugPrintf("ec_rs batt 5% wake_unlock\n");
}
}
}
}
break;
case POWER_SUPPLY_PROP_HEALTH:
if (batt_dev->present)
val->intval = POWER_SUPPLY_HEALTH_GOOD;
else
val->intval = POWER_SUPPLY_HEALTH_UNKNOWN;
break;
case POWER_SUPPLY_PROP_PRESENT:
if (!NvOdmBatteryGetBatteryStatus(batt_dev->hOdmBattDev,
NvOdmBatteryInst_Main, &state))
return -EINVAL;
if (state == NVODM_BATTERY_STATUS_UNKNOWN) {
batt_dev->present = NV_FALSE;
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
} else {
if (state == NVODM_BATTERY_STATUS_NO_BATTERY) {
batt_dev->present = NV_FALSE;
val->intval = NV_FALSE;
}
if (state & (NVODM_BATTERY_STATUS_HIGH |
NVODM_BATTERY_STATUS_LOW |
NVODM_BATTERY_STATUS_CRITICAL |
NVODM_BATTERY_STATUS_CHARGING |
NVODM_BATTERY_STATUS_DISCHARGING |
NVODM_BATTERY_STATUS_IDLE)) {
batt_dev->present = NV_TRUE;
val->intval = NV_TRUE;
}
}
break;
case POWER_SUPPLY_PROP_TECHNOLOGY:
tegra_get_battery_tech(&technology, NvOdmBatteryInst_Main);
val->intval = technology;
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = batt_dev->percent_remain;
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
val->intval = batt_dev->voltage*1000;
break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
val->intval = batt_dev->current_ma;
break;
case POWER_SUPPLY_PROP_CURRENT_AVG:
val->intval = batt_dev->current_avg;
break;
case POWER_SUPPLY_PROP_CHARGE_NOW:
val->intval = batt_dev->capacity_remain;
break;
case POWER_SUPPLY_PROP_CHARGE_FULL:
val->intval = batt_dev->capacity;
break;
case POWER_SUPPLY_PROP_CHARGE_EMPTY:
val->intval = batt_dev->capacity_crit;
break;
case POWER_SUPPLY_PROP_TEMP:
/* returned value is degrees C * 10 */
//Daniel 20100706, its unit is 0.1 degree-K, not 0.01 degree-C.
//Daniel 20100707, convert from tenths of a degree-K to tenths of a degree-C.
//val->intval = batt_dev->temp/10;
val->intval = batt_dev->temp - 2730;
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
if (!NvOdmBatteryGetModel(batt_dev->hOdmBattDev,
NvOdmBatteryInst_Main, name))
return -EINVAL;
strncpy((char *)val->strval, name, strlen(name));
break;
case POWER_SUPPLY_PROP_MANUFACTURER:
if (!NvOdmBatteryGetManufacturer(batt_dev->hOdmBattDev,
NvOdmBatteryInst_Main, name))
return -EINVAL;
strncpy((char *)val->strval, name, strlen(name));
break;
default:
return -EINVAL;
}
return 0;
}
