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<3.4V cacptity = 0

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This commit is contained in:
clb
2011-08-23 10:58:58 +08:00
parent 7f8b1b6a4e
commit d76964ab86
1 changed files with 10 additions and 21 deletions
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31
drivers/power/bq27541_battery.c Normal file → Executable file
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@@ -74,6 +74,7 @@ struct bq27541_device_info {
unsigned int interval;
unsigned int dc_check_pin;
unsigned int bat_num;
int power_down;
};
static struct bq27541_device_info *bq27541_di;
@@ -211,10 +212,9 @@ static int bq27541_battery_voltage(struct bq27541_device_info *di)
if ((volt <= 3400000) && (volt > 0)){
printk("vol smaller then 3.4V, shutdown");
while(1){
gpio_set_value(POWER_ON_PIN, GPIO_LOW);
mdelay(100);
}
di->power_down = 1;
}else{
di->power_down = 0;
}
@@ -483,7 +483,11 @@ static int bq27541_battery_get_property(struct power_supply *psy,
val->intval = bq27541_battery_current(di);
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = bq27541_battery_rsoc(di);
if (!(di->power_down)){ // < 3.4V power down ,capacity = 0;
val->intval = bq27541_battery_rsoc(di);
}else{
val->intval = 0;
}
break;
case POWER_SUPPLY_PROP_TEMP:
@@ -544,6 +548,7 @@ static void bq27541_powersupply_init(struct bq27541_device_info *di)
di->bat.properties = bq27541_battery_props;
di->bat.num_properties = ARRAY_SIZE(bq27541_battery_props);
di->bat.get_property = bq27541_battery_get_property;
di->power_down = 0;
di->ac.name = "ac";
di->ac.type = POWER_SUPPLY_TYPE_MAINS;
@@ -619,22 +624,6 @@ static int bq27541_battery_probe(struct i2c_client *client,
struct bq27541_platform_data *pdata;
int val =0;
// gpio_request(BAT_LOW, NULL);
// gpio_direction_input(BAT_LOW);
gpio_request(POWER_ON_PIN, "poweronpin");
gpio_direction_output(POWER_ON_PIN, GPIO_HIGH);
/*
val = gpio_get_value(BAT_LOW);
if (val == 0){
printk("no battery, shutdown\n");
while(1){
gpio_set_value(POWER_ON_PIN, GPIO_LOW);
mdelay(100);
}
return 0;
}
*/
DBG("********** bq27541_battery_probe************** ");
pdata = client->dev.platform_data;