summaryrefslogtreecommitdiffstats
path: root/drivers/acpi/battery.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/acpi/battery.c')
-rw-r--r--drivers/acpi/battery.c55
1 files changed, 38 insertions, 17 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 192c244f6190..c4a769d1ba85 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -31,7 +31,7 @@
#include <linux/types.h>
#include <linux/jiffies.h>
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
@@ -40,7 +40,9 @@
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
+#ifdef CONFIG_ACPI_SYSFS_POWER
#include <linux/power_supply.h>
+#endif
#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF
@@ -63,7 +65,7 @@ static unsigned int cache_time = 1000;
module_param(cache_time, uint, 0644);
MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
@@ -86,7 +88,9 @@ MODULE_DEVICE_TABLE(acpi, battery_device_ids);
struct acpi_battery {
struct mutex lock;
+#ifdef CONFIG_ACPI_SYSFS_POWER
struct power_supply bat;
+#endif
struct acpi_device *device;
unsigned long update_time;
int current_now;
@@ -117,6 +121,7 @@ inline int acpi_battery_present(struct acpi_battery *battery)
return battery->device->status.battery_present;
}
+#ifdef CONFIG_ACPI_SYSFS_POWER
static int acpi_battery_technology(struct acpi_battery *battery)
{
if (!strcasecmp("NiCd", battery->type))
@@ -125,7 +130,7 @@ static int acpi_battery_technology(struct acpi_battery *battery)
return POWER_SUPPLY_TECHNOLOGY_NiMH;
if (!strcasecmp("LION", battery->type))
return POWER_SUPPLY_TECHNOLOGY_LION;
- if (!strcasecmp("LI-ION", battery->type))
+ if (!strncasecmp("LI-ION", battery->type, 6))
return POWER_SUPPLY_TECHNOLOGY_LION;
if (!strcasecmp("LiP", battery->type))
return POWER_SUPPLY_TECHNOLOGY_LIPO;
@@ -153,6 +158,8 @@ static int acpi_battery_get_property(struct power_supply *psy,
val->intval = POWER_SUPPLY_STATUS_CHARGING;
else if (battery->state == 0)
val->intval = POWER_SUPPLY_STATUS_FULL;
+ else
+ val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
break;
case POWER_SUPPLY_PROP_PRESENT:
val->intval = acpi_battery_present(battery);
@@ -220,8 +227,9 @@ static enum power_supply_property energy_battery_props[] = {
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
};
+#endif
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
inline char *acpi_battery_units(struct acpi_battery *battery)
{
return (battery->power_unit)?"mA":"mW";
@@ -396,6 +404,7 @@ static int acpi_battery_init_alarm(struct acpi_battery *battery)
return acpi_battery_set_alarm(battery);
}
+#ifdef CONFIG_ACPI_SYSFS_POWER
static ssize_t acpi_battery_alarm_show(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -427,11 +436,6 @@ static int sysfs_add_battery(struct acpi_battery *battery)
{
int result;
- battery->update_time = 0;
- result = acpi_battery_get_info(battery);
- acpi_battery_init_alarm(battery);
- if (result)
- return result;
if (battery->power_unit) {
battery->bat.properties = charge_battery_props;
battery->bat.num_properties =
@@ -460,18 +464,31 @@ static void sysfs_remove_battery(struct acpi_battery *battery)
power_supply_unregister(&battery->bat);
battery->bat.dev = NULL;
}
+#endif
static int acpi_battery_update(struct acpi_battery *battery)
{
- int result = acpi_battery_get_status(battery);
+ int result;
+ result = acpi_battery_get_status(battery);
if (result)
return result;
+#ifdef CONFIG_ACPI_SYSFS_POWER
if (!acpi_battery_present(battery)) {
sysfs_remove_battery(battery);
+ battery->update_time = 0;
return 0;
}
+#endif
+ if (!battery->update_time) {
+ result = acpi_battery_get_info(battery);
+ if (result)
+ return result;
+ acpi_battery_init_alarm(battery);
+ }
+#ifdef CONFIG_ACPI_SYSFS_POWER
if (!battery->bat.dev)
sysfs_add_battery(battery);
+#endif
return acpi_battery_get_state(battery);
}
@@ -479,7 +496,7 @@ static int acpi_battery_update(struct acpi_battery *battery)
FS Interface (/proc)
-------------------------------------------------------------------------- */
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
static struct proc_dir_entry *acpi_battery_dir;
static int acpi_battery_print_info(struct seq_file *seq, int result)
@@ -765,9 +782,11 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event,
acpi_battery_present(battery));
+#ifdef CONFIG_ACPI_SYSFS_POWER
/* acpi_batter_update could remove power_supply object */
if (battery->bat.dev)
kobject_uevent(&battery->bat.dev->kobj, KOBJ_CHANGE);
+#endif
}
static int acpi_battery_add(struct acpi_device *device)
@@ -786,7 +805,7 @@ static int acpi_battery_add(struct acpi_device *device)
acpi_driver_data(device) = battery;
mutex_init(&battery->lock);
acpi_battery_update(battery);
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
result = acpi_battery_add_fs(device);
if (result)
goto end;
@@ -804,7 +823,7 @@ static int acpi_battery_add(struct acpi_device *device)
device->status.battery_present ? "present" : "absent");
end:
if (result) {
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_battery_remove_fs(device);
#endif
kfree(battery);
@@ -823,10 +842,12 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify);
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_battery_remove_fs(device);
#endif
+#ifdef CONFIG_ACPI_SYSFS_POWER
sysfs_remove_battery(battery);
+#endif
mutex_destroy(&battery->lock);
kfree(battery);
return 0;
@@ -859,13 +880,13 @@ static int __init acpi_battery_init(void)
{
if (acpi_disabled)
return -ENODEV;
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_battery_dir = acpi_lock_battery_dir();
if (!acpi_battery_dir)
return -ENODEV;
#endif
if (acpi_bus_register_driver(&acpi_battery_driver) < 0) {
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_unlock_battery_dir(acpi_battery_dir);
#endif
return -ENODEV;
@@ -876,7 +897,7 @@ static int __init acpi_battery_init(void)
static void __exit acpi_battery_exit(void)
{
acpi_bus_unregister_driver(&acpi_battery_driver);
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_unlock_battery_dir(acpi_battery_dir);
#endif
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 20:03:51 +0000