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Pull battery into release branch

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This commit is contained in:
Len Brown 2007-08-24 22:18:51 -04:00
parent ca1f32a76b 5b31d89587
commit 2e0f4c7b38
1 changed files with 30 additions and 17 deletions
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47
drivers/acpi/battery.c
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@ -113,7 +113,7 @@ struct acpi_battery_info {
acpi_string oem_info;
};
enum acpi_battery_files {
enum acpi_battery_files{
ACPI_BATTERY_INFO = 0,
ACPI_BATTERY_STATE,
ACPI_BATTERY_ALARM,
@ -129,14 +129,13 @@ struct acpi_battery_flags {
};
struct acpi_battery {
struct mutex mutex;
struct acpi_device *device;
struct acpi_battery_flags flags;
struct acpi_buffer bif_data;
struct acpi_buffer bst_data;
struct mutex lock;
unsigned long alarm;
unsigned long update_time[ACPI_BATTERY_NUMFILES];
};
inline int acpi_battery_present(struct acpi_battery *battery)
@ -236,10 +235,10 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
return 0;
/* Evaluate _BIF */
mutex_lock(&battery->lock);
status = acpi_evaluate_object(acpi_battery_handle(battery), "_BIF",
NULL, &buffer);
mutex_unlock(&battery->lock);
status =
acpi_evaluate_object(acpi_battery_handle(battery), "_BIF", NULL,
&buffer);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
return -ENODEV;
@ -286,10 +285,10 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
return 0;
/* Evaluate _BST */
mutex_lock(&battery->lock);
status = acpi_evaluate_object(acpi_battery_handle(battery), "_BST",
NULL, &buffer);
mutex_unlock(&battery->lock);
status =
acpi_evaluate_object(acpi_battery_handle(battery), "_BST", NULL,
&buffer);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
return -ENODEV;
@ -337,10 +336,9 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
arg0.integer.value = alarm;
mutex_lock(&battery->lock);
status = acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
status =
acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
&arg_list, NULL);
mutex_unlock(&battery->lock);
if (ACPI_FAILURE(status))
return -ENODEV;
@ -660,6 +658,8 @@ acpi_battery_write_alarm(struct file *file,
if (!battery || (count > sizeof(alarm_string) - 1))
return -EINVAL;
mutex_lock(&battery->mutex);
result = acpi_battery_update(battery, 1, &update_result);
if (result) {
result = -ENODEV;
@ -688,7 +688,9 @@ acpi_battery_write_alarm(struct file *file,
acpi_battery_check_result(battery, result);
if (!result)
return count;
result = count;
mutex_unlock(&battery->mutex);
return result;
}
@ -712,6 +714,8 @@ static int acpi_battery_read(int fid, struct seq_file *seq)
int update_result = ACPI_BATTERY_NONE_UPDATE;
int update = 0;
mutex_lock(&battery->mutex);
update = (get_seconds() - battery->update_time[fid] >= update_time);
update = (update | battery->flags.update[fid]);
@ -729,6 +733,7 @@ static int acpi_battery_read(int fid, struct seq_file *seq)
result = acpi_read_funcs[fid].print(seq, result);
acpi_battery_check_result(battery, result);
battery->flags.update[fid] = result;
mutex_unlock(&battery->mutex);
return result;
}
@ -892,7 +897,10 @@ static int acpi_battery_add(struct acpi_device *device)
if (!battery)
return -ENOMEM;
mutex_init(&battery->lock);
mutex_init(&battery->mutex);
mutex_lock(&battery->mutex);
battery->device = device;
strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
@ -928,6 +936,7 @@ static int acpi_battery_add(struct acpi_device *device)
kfree(battery);
}
mutex_unlock(&battery->mutex);
return result;
}
@ -942,6 +951,8 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
battery = acpi_driver_data(device);
mutex_lock(&battery->mutex);
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify);
@ -952,7 +963,9 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
kfree(battery->bst_data.pointer);
mutex_destroy(&battery->lock);
mutex_unlock(&battery->mutex);
mutex_destroy(&battery->mutex);
kfree(battery);