高温高压后如何恢复充电？

发表于 2017/9/27 17:33:53 阅读（1238）

在充电的过程中，如果出现高温或者高压的情况下，系统会停止充电，当温度或者充电器的电压值恢复正常后，如何恢复充电？

1.高温后温度正常，恢复充电

mediatek\kernel\drivers\power\battery_common.c
#define RECOVERY_CHARGING_TEMPERATURE xx
mt_battery_checkBatteryTemp()
增加变量static KAL_BOOL g_overTemp = KAL_FALSE;

在

if(BMT_status.temperature >= MAX_CHARGE_TEMERATURE)
{
battery_xlog_printk(BAT_LOG_CRTI, "[BATTERY] Battery Over Temperature !! \n\r");
status = PMU_STATUS_FAIL;
g_overTemp = KAL_TRUE; //add here
}

复制代码

然后在return status之前增加

if((g_overTemp == KAL_TRUE) && (BMT_status.temperature <= RECOVERY_CHARGING_TEMPERATURE))
{
battery_xlog_printk(BAT_LOG_CRTI, "[BATTERY] recovery charging after over temperature!! \n\r");
g_overTemp = KAL_FALSE;
status = PMU_STATUS_OK;
BMT_status.bat_charging_state = CHR_PRE;
}

复制代码

2.高压后充电器电压恢复正常后恢复充电

mediatek\kernel\drivers\power\battery_common.c
#define RECOVERY_CHARGING_VOLTAGE xx
mt_battery_checkChargerVoltage()
if(BMT_status.charger_exist == KAL_TRUE)
{
...
//最后添加下面一段code
if((BMT_status.charger_protect_status == charger_OVER_VOL) && (BMT_status.charger_vol <=
RECOVERY_CHARGING_VOLTAGE))
{
battery_xlog_printk(BAT_LOG_CRTI, "[BATTERY] recovery charging afer over voltage !! \r\n");
BMT_status.charger_protect_status = 0;
BMT_status.bat_charging_state = CHR_PRE;
status = PMU_STATUS_OK;
}
}