static void bq2416x_start_ac_charger(struct bq2416x_device_info *di)
{
long int events = BQ2416x_START_AC_CHARGING;
/*set gpio_174 low level for CD pin to enable bq24161 IC*/
gpio_set_value(ENABLE_BQ2416x_CHARGER, 0);
blocking_notifier_call_chain(¬ifier_list, events, NULL);
di->charger_source = POWER_SUPPLY_TYPE_MAINS;
di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
di->calling_limit = 0;
di->factory_flag = 0;
di->battery_temp_status = -1;
di->dppm_voltagemV = VINDPM_MIN_4200;
di->cin_limit = di->max_cin_currentmA;
di->currentmA = di->max_currentmA ;
di->voltagemV = di->max_voltagemV;
di->term_currentmA = ITERM_MIN_50;
di->enable_ce = ENABLE_CHARGER; /*enable charger*/
di->enable_iterm = ENABLE_ITERM; /*enable charge current termination*/
di->hz_mode = DIS_HIZ;
di->safety_timer = TMR_X_9;
di->enable_low_chg = DISABLE_LOW_CHG;
bq2416x_config_control_reg(di);
bq2416x_config_voltage_reg(di);
bq2416x_config_current_reg(di);
bq2416x_config_dppm_voltage_reg(di,di->dppm_voltagemV);
bq2416x_config_safety_reg(di);
bq2416x_config_watchdog_reg(di);
schedule_delayed_work(&di->bq2416x_charger_work,
msecs_to_jiffies(0));
dev_info(di->dev,"%s, ---->START AC CHARGING, \n"
"battery current = %d mA\n"
"battery voltage = %d mV\n"
, __func__, di->currentmA, di->voltagemV);
di->battery_present = is_bq27510_battery_exist(g_battery_measure_by_bq27510_device);
if (!di->battery_present){
dev_info(di->dev, "BATTERY NOT DETECTED!\n");
events = BQ2416x_NOT_CHARGING;
blocking_notifier_call_chain(¬ifier_list, events, NULL);
di->charge_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
}
di->wakelock_enabled = 1;
if (di->wakelock_enabled)
wake_lock(&di->charger_wake_lock);
return;
}
void bq2416x_open_inner_fet(struct bq2416x_device_info *di)
{
u8 en_nobatop = 0;
bq2416x_read_byte(di, &en_nobatop, REG_BATTERY_AND_SUPPLY_STATUS);
if(g_battery_measure_by_bq27510_device &&
is_bq27510_battery_exist(g_battery_measure_by_bq27510_device) ){
di->enable_iterm = ENABLE_ITERM;
en_nobatop = en_nobatop & (~EN_NOBATOP);
}else {
di->enable_iterm = DISABLE_ITERM;
en_nobatop = en_nobatop | EN_NOBATOP;
}
bq2416x_config_control_reg(di);
bq2416x_write_byte(di, en_nobatop, REG_BATTERY_AND_SUPPLY_STATUS);
}
static void
bq2416x_charger_update_status(struct bq2416x_device_info *di)
{
u8 read_reg[8] = {0};
timer_fault = 0;
bq2416x_read_block(di, &read_reg[0], 0, 8);
if ((read_reg[0] & 0x70) == 0x50)
dev_dbg(di->dev, "CHARGE DONE\n");
if ((read_reg[0] & 0x7) == 0x4)
timer_fault = 1;
if (read_reg[0] & 0x7) {
di->cfg_params = 1;
dev_err(di->dev, "CHARGER STATUS = %x\n", read_reg[0]);
}
if ((read_reg[1] & 0x6) == 0x2) {
di->hz_mode = 1;
bq2416x_config_control_reg(di);
bq2416x_write_byte(di, di->voltage_reg, REG_BATTERY_VOLTAGE);
dev_err(di->dev, "battery ovp = %x,%x\n", read_reg[1],read_reg[3]);
msleep(700);
di->hz_mode = 0;
bq2416x_config_control_reg(di);
}
if (is_bq27510_battery_exist(g_battery_measure_by_bq27510_device)){
bq2416x__charge_status(di);
}
if ((timer_fault == 1) || (di->cfg_params == 1)) {
bq2416x_write_byte(di, di->control_reg, REG_CONTROL_REGISTER);
bq2416x_write_byte(di, di->voltage_reg, REG_BATTERY_VOLTAGE);
bq2416x_write_byte(di, di->current_reg, REG_BATTERY_CURRENT);
bq2416x_write_byte(di, di->dppm_reg, REG_DPPM_VOLTAGE);
bq2416x_config_safety_reg(di);
di->cfg_params = 0;
}
/* reset 32 second timer */
bq2416x_config_status_reg(di);
return;
}
static void bq2416x_charger_work(struct work_struct *work)
{
struct bq2416x_device_info *di = container_of(work,
struct bq2416x_device_info, bq2416x_charger_work.work);
di->battery_present = is_bq27510_battery_exist(g_battery_measure_by_bq27510_device);
bq2416x_open_inner_fet(di);
bq2416x_monitor_battery_ntc_charging(di);
bq2416x_charger_update_status(di);
schedule_delayed_work(&di->bq2416x_charger_work,
msecs_to_jiffies(BQ2416x_WATCHDOG_TIMEOUT));
}
static void bq2416x_start_ac_charger(struct bq2416x_device_info *di)
{
long int events;
/*set gpio_174 low level for CD pin to enable bq24161 IC*/
gpio_set_value(BQ2416X_GPIO_174, 0);
events = BQ2416x_START_AC_CHARGING;
blocking_notifier_call_chain(¬ifier_list, events, NULL);
di->enable_ce = ENABLE_CE; /*enable charger*/
di->enable_iterm = ENABLE_ITERM; /*enable charge current termination*/
if(! g_battery_measure_by_bq27510_device)
return ;
di->charger_source = POWER_SUPPLY_TYPE_MAINS;
di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
di->calling_limit = set_zero;
di->dppm_voltagemV = VOLT_DPPM_ADJUST_AC;
di->cin_limit = CURRENT_AC_LIMIT_IN;
di->currentmA = di->max_currentmA ;
bq2416x_config_control_reg(di);
bq2416x_config_voltage_reg(di);
bq2416x_config_current_reg(di);
bq2416x_config_dppm_voltage_reg(di,di->dppm_voltagemV);
#if BQ2416X_USE_WAKE_LOCK
wake_lock(&di->charger_wake_lock);
#endif
schedule_delayed_work(&di->bq2416x_charger_work,
msecs_to_jiffies(0));
dev_info(di->dev,"%s, ---->START AC CHARGING, \n"
"battery current = %d mA\n"
"battery voltage = %d mV\n"
, __func__, di->currentmA, di->voltagemV);
if (!is_bq27510_battery_exist(g_battery_measure_by_bq27510_device)){
dev_dbg(di->dev, "BATTERY NOT DETECTED!\n");
events = BQ2416x_NOT_CHARGING;
blocking_notifier_call_chain(¬ifier_list, events, NULL);
di->charge_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
di->enable_low_chg = DISABLE_LOW_CHG;
bq2416x_config_safety_reg(di);
}
}
/*small current charging(100mA) when low battery voltage or low battery temprature*/
static void
bq2416x_low_current_charge(struct bq2416x_device_info *di)
{
int battery_voltage = 0;
int battery_temperature = 0;
if (!is_bq27510_battery_exist(g_battery_measure_by_bq27510_device))
return;
battery_voltage = bq27510_battery_voltage(g_battery_measure_by_bq27510_device);
battery_temperature = bq27510_battery_temperature(g_battery_measure_by_bq27510_device);
if (battery_temperature < BQ2416x_COLD_BATTERY_THRESHOLD){
dev_dbg(di->dev, "battery temp less than -10 degree,disable charging\n");
di->enable_ce = DISABLE_CE;
if (di->charger_source == POWER_SUPPLY_TYPE_MAINS){
if(di->calling_limit){
di->cin_limit = CURRENT_AC_LIMIT_IN_800;
}
else{
di->cin_limit = CURRENT_AC_LIMIT_IN;
}
}
else
di->cin_limit = CURRENT_USB_LIMIT_IN;
}
else if ((battery_temperature >= BQ2416x_COLD_BATTERY_THRESHOLD)
&& (battery_temperature < BQ2416x_COOL_BATTERY_THRESHOLD)){
/*battery temp is between -10 and 0 degree,or battery voltage is less than 3.0V*/
di->enable_low_chg = ENABLE_LOW_CHG;/*enable low charge,100mA charging*/
bq2416x_config_safety_reg(di);
if (di->charger_source == POWER_SUPPLY_TYPE_MAINS){
if(di->calling_limit){
di->cin_limit = CURRENT_AC_LIMIT_IN_800;
}
else{
di->cin_limit = CURRENT_AC_LIMIT_IN;
}
}
else
di->cin_limit = CURRENT_USB_LIMIT_IN;
if(battery_voltage < BQ2416x_LOW_TEMP_TERM_VOLTAGE){
di->enable_ce = ENABLE_CE;
}
else{
di->enable_ce = DISABLE_CE;
}
}
else if ((battery_temperature >= BQ2416x_COOL_BATTERY_THRESHOLD)
&& (battery_temperature < (BQ2416x_WARM_BATTERY_THRESHOLD - TEMPERATURE_OFFSET))){
/*battery temp is between 00 and 50 degree,normal charge*/
di->enable_low_chg = DISABLE_LOW_CHG;/*normal charge*/
bq2416x_config_safety_reg(di);
di->enable_ce = ENABLE_CE;
if (di->charger_source == POWER_SUPPLY_TYPE_MAINS){
if(di->calling_limit){
di->cin_limit = CURRENT_AC_LIMIT_IN_800;
}
else{
di->cin_limit = CURRENT_AC_LIMIT_IN;
}
}
else
di->cin_limit = CURRENT_USB_LIMIT_IN;
}
else if ((battery_temperature >= BQ2416x_WARM_BATTERY_THRESHOLD)
&& (battery_temperature < BQ2416x_HOT_BATTERY_THRESHOLD )){
/*battery temp is between 00 and 50 degree,normal charge*/
di->enable_low_chg = DISABLE_LOW_CHG;/*normal charge*/
bq2416x_config_safety_reg(di);
di->enable_ce = ENABLE_CE;
if (di->charger_source == POWER_SUPPLY_TYPE_MAINS)
di->cin_limit = CURRENT_AC_LIMIT_IN_800;
else
di->cin_limit = CURRENT_USB_LIMIT_IN;
}
else if (battery_temperature >= BQ2416x_HOT_BATTERY_THRESHOLD)
{
dev_dbg(di->dev, "battery temp more than 50 degree,disable charging\n");
di->enable_ce = DISABLE_CE;
if (di->charger_source == POWER_SUPPLY_TYPE_MAINS)
di->cin_limit = CURRENT_AC_LIMIT_IN_800;
else
di->cin_limit = CURRENT_USB_LIMIT_IN;
}
else{
di->cin_limit = di->cin_limit;
}
di->enable_ce = (di->enable_ce | di->factory_flag);
bq2416x_config_control_reg(di);
return;
}