static int bq256xx_get_charger_property()

in supply/bq256xx_charger.c [948:1131]

• 167 lines of code
• 45 McCabe index (conditional complexity)

static int bq256xx_get_charger_property(struct power_supply *psy,
				enum power_supply_property psp,
				union power_supply_propval *val)
{
	struct bq256xx_device *bq = power_supply_get_drvdata(psy);
	struct bq256xx_state state;
	int ret = 0;

	mutex_lock(&bq->lock);
	ret = bq256xx_get_state(bq, &state);
	mutex_unlock(&bq->lock);
	if (ret)
		return ret;

	switch (psp) {
	case POWER_SUPPLY_PROP_STATUS:
		if (state.vbus_stat == BQ256XX_VBUS_STAT_NO_INPUT ||
		    state.vbus_stat == BQ256XX_VBUS_STAT_USB_OTG)
			val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
		else if (state.chrg_stat == BQ256XX_CHRG_STAT_NOT_CHRGING)
			val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
		else if (state.chrg_stat == BQ256XX_CHRG_STAT_CHRG_TERM)
			val->intval = POWER_SUPPLY_STATUS_FULL;
		else
			val->intval = POWER_SUPPLY_STATUS_CHARGING;
		break;

	case POWER_SUPPLY_PROP_HEALTH:
		val->intval = POWER_SUPPLY_HEALTH_UNKNOWN;
		if (state.wdt_fault) {
			val->intval =
				POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE;
		} else if (state.bat_fault) {
			val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
		} else {
			switch (state.chrg_stat) {
			case BQ256XX_CHRG_FAULT_INPUT:
				val->intval =
					POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
				break;
			case BQ256XX_CHRG_FAULT_THERM:
				val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
				break;
			case BQ256XX_CHRG_FAULT_CST_EXPIRE:
				val->intval =
				POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE;
				break;
			default:
				break;
			}

			switch (state.ntc_fault) {
			case BQ256XX_NTC_FAULT_WARM:
				val->intval = POWER_SUPPLY_HEALTH_WARM;
				break;
			case BQ256XX_NTC_FAULT_COOL:
				val->intval = POWER_SUPPLY_HEALTH_COOL;
				break;
			case BQ256XX_NTC_FAULT_COLD:
				val->intval = POWER_SUPPLY_HEALTH_COLD;
				break;
			case BQ256XX_NTC_FAULT_HOT:
				val->intval = POWER_SUPPLY_HEALTH_HOT;
				break;
			default:
				val->intval = POWER_SUPPLY_HEALTH_GOOD;
				break;
			}
		}
		break;

	case POWER_SUPPLY_PROP_USB_TYPE:
		if (bq->chip_info->has_usb_detect) {
			switch (state.vbus_stat) {
			case BQ256XX_VBUS_STAT_USB_SDP:
				val->intval = POWER_SUPPLY_USB_TYPE_SDP;
				break;
			case BQ256XX_VBUS_STAT_USB_CDP:
				val->intval = POWER_SUPPLY_USB_TYPE_CDP;
				break;
			case BQ256XX_VBUS_STAT_USB_DCP:
				val->intval = POWER_SUPPLY_USB_TYPE_DCP;
				break;
			case BQ256XX_VBUS_STAT_USB_OTG:
				val->intval = POWER_SUPPLY_USB_TYPE_ACA;
				break;
			default:
				val->intval = POWER_SUPPLY_USB_TYPE_UNKNOWN;
				break;
			}
		} else {
			switch (state.vbus_stat) {
			case BQ256XX_VBUS_STAT_USB_SDP:
				val->intval = POWER_SUPPLY_USB_TYPE_SDP;
				break;
			case BQ256XX_VBUS_STAT_USB_OTG:
				val->intval = POWER_SUPPLY_USB_TYPE_ACA;
				break;
			default:
				val->intval = POWER_SUPPLY_USB_TYPE_UNKNOWN;
				break;
			}
		}
		break;

	case POWER_SUPPLY_PROP_CHARGE_TYPE:
		switch (state.chrg_stat) {
		case BQ256XX_CHRG_STAT_NOT_CHRGING:
			val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE;
			break;
		case BQ256XX_CHRG_STAT_PRECHRGING:
			val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
			break;
		case BQ256XX_CHRG_STAT_FAST_CHRGING:
			val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST;
			break;
		case BQ256XX_CHRG_STAT_CHRG_TERM:
			val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
			break;
		default:
			val->intval = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
		}
		break;

	case POWER_SUPPLY_PROP_MANUFACTURER:
		val->strval = BQ256XX_MANUFACTURER;
		break;

	case POWER_SUPPLY_PROP_MODEL_NAME:
		val->strval = bq->model_name;
		break;

	case POWER_SUPPLY_PROP_ONLINE:
		val->intval = state.online;
		break;

	case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT:
		ret = bq->chip_info->bq256xx_get_vindpm(bq);
		if (ret < 0)
			return ret;
		val->intval = ret;
		break;

	case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
		ret = bq->chip_info->bq256xx_get_iindpm(bq);
		if (ret < 0)
			return ret;
		val->intval = ret;
		break;

	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
		ret = bq->chip_info->bq256xx_get_vbatreg(bq);
		if (ret < 0)
			return ret;
		val->intval = ret;
		break;

	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
		ret = bq->chip_info->bq256xx_get_ichg(bq);
		if (ret < 0)
			return ret;
		val->intval = ret;
		break;

	case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
		ret = bq->chip_info->bq256xx_get_iprechg(bq);
		if (ret < 0)
			return ret;
		val->intval = ret;
		break;

	case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
		ret = bq->chip_info->bq256xx_get_iterm(bq);
		if (ret < 0)
			return ret;
		val->intval = ret;
		break;

	default:
		return -EINVAL;
	}

	return ret;
}