static enum dwc_otg_state do_charger_detection(struct dwc_otg2 *otg)
{
enum dwc_otg_state state = DWC_STATE_INVALID;
enum power_supply_charger_cable_type charger =
POWER_SUPPLY_CHARGER_TYPE_NONE;
unsigned long flags, ma = 0;
charger = get_charger_type(otg);
switch (charger) {
case POWER_SUPPLY_CHARGER_TYPE_ACA_A:
case POWER_SUPPLY_CHARGER_TYPE_ACA_B:
case POWER_SUPPLY_CHARGER_TYPE_ACA_C:
otg_err(otg, "Ignore micro ACA charger.\n");
charger = POWER_SUPPLY_CHARGER_TYPE_NONE;
break;
case POWER_SUPPLY_CHARGER_TYPE_USB_SDP:
case POWER_SUPPLY_CHARGER_TYPE_USB_CDP:
state = DWC_STATE_B_PERIPHERAL;
break;
case POWER_SUPPLY_CHARGER_TYPE_ACA_DOCK:
state = DWC_STATE_A_HOST;
break;
case POWER_SUPPLY_CHARGER_TYPE_USB_DCP:
case POWER_SUPPLY_CHARGER_TYPE_SE1:
state = DWC_STATE_CHARGING;
break;
case POWER_SUPPLY_CHARGER_TYPE_NONE:
default:
if (is_self_powered_b_device(otg)) {
state = DWC_STATE_A_HOST;
charger = POWER_SUPPLY_CHARGER_TYPE_B_DEVICE;
break;
}
};
switch (charger) {
case POWER_SUPPLY_CHARGER_TYPE_ACA_DOCK:
case POWER_SUPPLY_CHARGER_TYPE_ACA_A:
case POWER_SUPPLY_CHARGER_TYPE_ACA_B:
case POWER_SUPPLY_CHARGER_TYPE_ACA_C:
case POWER_SUPPLY_CHARGER_TYPE_USB_DCP:
case POWER_SUPPLY_CHARGER_TYPE_USB_CDP:
case POWER_SUPPLY_CHARGER_TYPE_SE1:
ma = 1500;
break;
case POWER_SUPPLY_CHARGER_TYPE_USB_SDP:
break;
default:
otg_err(otg, "Charger type is not valid to notify battery\n");
return -EINVAL;
}
spin_lock_irqsave(&otg->lock, flags);
otg->charging_cap.chrg_type = charger;
otg->charging_cap.ma = ma;
spin_unlock_irqrestore(&otg->lock, flags);
switch (charger) {
case POWER_SUPPLY_CHARGER_TYPE_ACA_DOCK:
case POWER_SUPPLY_CHARGER_TYPE_USB_DCP:
case POWER_SUPPLY_CHARGER_TYPE_USB_CDP:
case POWER_SUPPLY_CHARGER_TYPE_SE1:
if (dwc_otg_notify_charger_type(otg,
POWER_SUPPLY_CHARGER_EVENT_CONNECT) < 0)
otg_err(otg, "Notify battery type failed!\n");
break;
case POWER_SUPPLY_CHARGER_TYPE_USB_SDP:
/* SDP is complicate, it will be handle in set_power */
default:
break;
}
return state;
}
static ssize_t msm_batt_chgr_status_show(struct device* dev, struct device_attribute* attr, char* buf)
{
int chg_type;
chg_type = get_charger_type();
return sprintf(buf,"%d\n", (chg_type == USB_CHG_TYPE__WALLCHARGER) ? 1 : (chg_type == USB_CHG_TYPE__SDP) ? 1 : 0);
}
