diff options
Diffstat (limited to 'drivers/acpi/battery.c')
| -rw-r--r-- | drivers/acpi/battery.c | 90 |
1 files changed, 63 insertions, 27 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 8f0e0c8d8c3d..111a407dcc77 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -38,6 +38,8 @@ #define PREFIX "ACPI: " #define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF +#define ACPI_BATTERY_CAPACITY_VALID(capacity) \ + ((capacity) != 0 && (capacity) != ACPI_BATTERY_VALUE_UNKNOWN) #define ACPI_BATTERY_DEVICE_NAME "Battery" @@ -192,7 +194,8 @@ static int acpi_battery_is_charged(struct acpi_battery *battery) static bool acpi_battery_is_degraded(struct acpi_battery *battery) { - return battery->full_charge_capacity && battery->design_capacity && + return ACPI_BATTERY_CAPACITY_VALID(battery->full_charge_capacity) && + ACPI_BATTERY_CAPACITY_VALID(battery->design_capacity) && battery->full_charge_capacity < battery->design_capacity; } @@ -214,7 +217,7 @@ static int acpi_battery_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { - int ret = 0; + int full_capacity = ACPI_BATTERY_VALUE_UNKNOWN, ret = 0; struct acpi_battery *battery = to_acpi_battery(psy); if (acpi_battery_present(battery)) { @@ -263,14 +266,14 @@ static int acpi_battery_get_property(struct power_supply *psy, break; case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: - if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN) + if (!ACPI_BATTERY_CAPACITY_VALID(battery->design_capacity)) ret = -ENODEV; else val->intval = battery->design_capacity * 1000; break; case POWER_SUPPLY_PROP_CHARGE_FULL: case POWER_SUPPLY_PROP_ENERGY_FULL: - if (battery->full_charge_capacity == ACPI_BATTERY_VALUE_UNKNOWN) + if (!ACPI_BATTERY_CAPACITY_VALID(battery->full_charge_capacity)) ret = -ENODEV; else val->intval = battery->full_charge_capacity * 1000; @@ -283,11 +286,17 @@ static int acpi_battery_get_property(struct power_supply *psy, val->intval = battery->capacity_now * 1000; break; case POWER_SUPPLY_PROP_CAPACITY: - if (battery->capacity_now && battery->full_charge_capacity) - val->intval = battery->capacity_now * 100/ - battery->full_charge_capacity; + if (ACPI_BATTERY_CAPACITY_VALID(battery->full_charge_capacity)) + full_capacity = battery->full_charge_capacity; + else if (ACPI_BATTERY_CAPACITY_VALID(battery->design_capacity)) + full_capacity = battery->design_capacity; + + if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN || + full_capacity == ACPI_BATTERY_VALUE_UNKNOWN) + ret = -ENODEV; else - val->intval = 0; + val->intval = battery->capacity_now * 100/ + full_capacity; break; case POWER_SUPPLY_PROP_CAPACITY_LEVEL: if (battery->state & ACPI_BATTERY_STATE_CRITICAL) @@ -333,6 +342,20 @@ static enum power_supply_property charge_battery_props[] = { POWER_SUPPLY_PROP_SERIAL_NUMBER, }; +static enum power_supply_property charge_battery_full_cap_broken_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_TECHNOLOGY, + POWER_SUPPLY_PROP_CYCLE_COUNT, + POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_CHARGE_NOW, + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_MANUFACTURER, + POWER_SUPPLY_PROP_SERIAL_NUMBER, +}; + static enum power_supply_property energy_battery_props[] = { POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_PRESENT, @@ -794,20 +817,34 @@ static void __exit battery_hook_exit(void) static int sysfs_add_battery(struct acpi_battery *battery) { struct power_supply_config psy_cfg = { .drv_data = battery, }; + bool full_cap_broken = false; + + if (!ACPI_BATTERY_CAPACITY_VALID(battery->full_charge_capacity) && + !ACPI_BATTERY_CAPACITY_VALID(battery->design_capacity)) + full_cap_broken = true; if (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) { - battery->bat_desc.properties = charge_battery_props; - battery->bat_desc.num_properties = - ARRAY_SIZE(charge_battery_props); - } else if (battery->full_charge_capacity == 0) { - battery->bat_desc.properties = - energy_battery_full_cap_broken_props; - battery->bat_desc.num_properties = - ARRAY_SIZE(energy_battery_full_cap_broken_props); + if (full_cap_broken) { + battery->bat_desc.properties = + charge_battery_full_cap_broken_props; + battery->bat_desc.num_properties = + ARRAY_SIZE(charge_battery_full_cap_broken_props); + } else { + battery->bat_desc.properties = charge_battery_props; + battery->bat_desc.num_properties = + ARRAY_SIZE(charge_battery_props); + } } else { - battery->bat_desc.properties = energy_battery_props; - battery->bat_desc.num_properties = - ARRAY_SIZE(energy_battery_props); + if (full_cap_broken) { + battery->bat_desc.properties = + energy_battery_full_cap_broken_props; + battery->bat_desc.num_properties = + ARRAY_SIZE(energy_battery_full_cap_broken_props); + } else { + battery->bat_desc.properties = energy_battery_props; + battery->bat_desc.num_properties = + ARRAY_SIZE(energy_battery_props); + } } battery->bat_desc.name = acpi_device_bid(battery->device); @@ -1165,13 +1202,12 @@ static int acpi_battery_alarm_proc_open(struct inode *inode, struct file *file) return single_open(file, acpi_battery_alarm_proc_show, PDE_DATA(inode)); } -static const struct file_operations acpi_battery_alarm_fops = { - .owner = THIS_MODULE, - .open = acpi_battery_alarm_proc_open, - .read = seq_read, - .write = acpi_battery_write_alarm, - .llseek = seq_lseek, - .release = single_release, +static const struct proc_ops acpi_battery_alarm_proc_ops = { + .proc_open = acpi_battery_alarm_proc_open, + .proc_read = seq_read, + .proc_write = acpi_battery_write_alarm, + .proc_lseek = seq_lseek, + .proc_release = single_release, }; static int acpi_battery_add_fs(struct acpi_device *device) @@ -1191,7 +1227,7 @@ static int acpi_battery_add_fs(struct acpi_device *device) acpi_battery_state_proc_show, acpi_driver_data(device))) return -ENODEV; if (!proc_create_data("alarm", S_IFREG | S_IRUGO | S_IWUSR, - acpi_device_dir(device), &acpi_battery_alarm_fops, + acpi_device_dir(device), &acpi_battery_alarm_proc_ops, acpi_driver_data(device))) return -ENODEV; return 0; |