1. 首先驱动需要先获取到2个power supply
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;
	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;
}
  1. 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);
  1. 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:

那么闪电图标应该会出现

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

闪电图标应该会出现

充电动画应该启动了

闪电图标消失

充电动画消失

05-22 17:18