Android 开机充电图标和充电动画 _Android

今日长缨在手，何时缚住苍龙。这篇文章主要讲述Android 开机充电图标和充电动画相关的知识，希望能为你提供帮助。

首先驱动需要先获取到2个power supply

kernelmsm-3.18driversusbphyphy-msm-usb.c

motg-> usb_psy.name = " usb" ; motg-> usb_psy.type = POWER_SUPPLY_TYPE_USB; motg-> usb_psy.supplied_to = otg_pm_power_supplied_to; motg-> usb_psy.num_supplicants = ARRAY_SIZE(otg_pm_power_supplied_to); motg-> usb_psy.properties = otg_pm_power_props_usb; motg-> usb_psy.num_properties = ARRAY_SIZE(otg_pm_power_props_usb); motg-> usb_psy.get_property = otg_power_get_property_usb; motg-> usb_psy.set_property = otg_power_set_property_usb; motg-> usb_psy.property_is_writeable = otg_power_property_is_writeable_usb; if (!msm_otg_register_power_supply(pdev, motg)) psy = & motg-> usb_psy;

kernelmsm-3.18driverspowerq2570xq2570x_charger.c

usb_psy = power_supply_get_by_name(" usb" ); static int bq2570x_psy_register(struct bq2570x *bq) { int ret; bq-> batt_psy.name = " dc_o2" ; bq-> batt_psy.type = POWER_SUPPLY_TYPE_BATTERY; bq-> batt_psy.properties = bq2570x_charger_props; bq-> batt_psy.num_properties = ARRAY_SIZE(bq2570x_charger_props); bq-> batt_psy.get_property = bq2570x_charger_get_property; bq-> batt_psy.set_property = bq2570x_charger_set_property; bq-> batt_psy.external_power_changed = bq2570x_external_power_changed; bq-> batt_psy.property_is_writeable = bq2570x_charger_is_writeable; ret = power_supply_register(bq-> dev, & bq-> batt_psy); if (ret < 0) { pr_err(" failed to register batt_psy:%d " , ret); return ret; }return 0; }

充电的闪电图标和充电动画启动逻辑

闪电图标启动逻辑：POWER_SUPPLY_TYPE_USB的power supply上报USB类型(CDP,DCP,USB)

power_supply_set_supply_type(bq-> usb_psy, POWER_SUPPLY_TYPE_USB); ret = power_supply_set_online(bq-> usb_psy, true); power_supply_changed(bq-> usb_psy);

充电动画的启动逻辑：POWER_SUPPLY_TYPE_BATTERY的power supply上报充电状态(CHARGE_STATE_NOT_CHARGING，CHARGE_STATE_FASTCHARGE)

bq-> charge_state = CHARGE_STATE_FASTCHARGE; power_supply_changed(& bq-> batt_psy);

利用dumpsys分析当前battery 状态

V2_PRO:/ # dumpsys battery Current Battery Service state: AC powered: false USB powered: true Wireless powered: false Max charging current: 0 Max charging voltage: 0 Charge counter: 0 status: 2 health: 2 present: true level: 46 scale: 100 voltage: 7 temperature: 270 technology: Li-ion

如上主要关注2个字段：