首先驱动需要先获取到2个power supply

kernel\msm-3.18\drivers\usb\phy\phy-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;

kernel\msm-3.18\drivers\power\bq2570x\bq2570x_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\n", 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：

usb powered : true

那么闪电图标应该会出现

status: 2

那么充电动画应该启动了

同时我们还可以通过shell指令的方式启动充电图标和充电动画

dumpsys battery set usb 1

闪电图标应该会出现

dumpsys battery set status 2

充电动画应该启动了

dumpsys battery set usb 0

闪电图标消失

dumpsys battery set status 4

充电动画消失

总结

以上所述是小编给大家介绍的android 开机充电图标和充电动画效果，希望对大家有所帮助