Android Startup Charging Icon and Charging Animation Effect
- 2021-11-14 07:06:44
- OfStack
First, the driver needs to obtain two 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;
}
Charging lightning icon and charging animation startup logic
Lightning icon startup logic: power supply of POWER_SUPPLY_TYPE_USB reported USB type (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);
Startup logic of charging animation: power supply of POWER_SUPPLY_TYPE_BATTERY reports charging status
(CHARGE_STATE_NOT_CHARGING , CHARGE_STATE_FASTCHARGE)
bq->charge_state = CHARGE_STATE_FASTCHARGE;
power_supply_changed(&bq->batt_psy);
Using dumpsys to analyze the current battery status
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
The above mainly focuses on two fields:
USB powered : true
Then the lightning icon should appear
status: 2
Then the charging animation should start
At the same time, we can also start the charging icon and charging animation through shell command
dumpsys battery set usb 1
The lightning icon should appear
dumpsys battery set status 2
Charging animation should start
dumpsys battery set usb 0
Lightning icon disappears
dumpsys battery set status 4
Charging animation disappears
Summarize