#include <linux/moduleparam.h>
#include <linux/kernel.h>
+#ifdef CONFIG_ACPI_PROCFS_POWER
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
+#endif
#include <linux/acpi.h>
#include <linux/timer.h>
struct acpi_battery {
struct power_supply bat;
struct acpi_sbs *sbs;
+#ifdef CONFIG_ACPI_PROCFS_POWER
struct proc_dir_entry *proc_entry;
+#endif
unsigned long update_time;
char name[8];
char manufacturer_name[ACPI_SBS_BLOCK_MAX];
u16 spec;
u8 id;
u8 present:1;
+ u8 have_sysfs_alarm:1;
};
#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
struct acpi_device *device;
struct acpi_smb_hc *hc;
struct mutex lock;
+#ifdef CONFIG_ACPI_PROCFS_POWER
struct proc_dir_entry *charger_entry;
+#endif
struct acpi_battery battery[MAX_SBS_BAT];
u8 batteries_supported:4;
u8 manager_present:1;
return result;
}
+static ssize_t acpi_battery_alarm_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev));
+ acpi_battery_get_alarm(battery);
+ return sprintf(buf, "%d\n", battery->alarm_capacity *
+ acpi_battery_scale(battery) * 1000);
+}
+
+static ssize_t acpi_battery_alarm_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long x;
+ struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev));
+ if (sscanf(buf, "%ld\n", &x) == 1)
+ battery->alarm_capacity = x /
+ (1000 * acpi_battery_scale(battery));
+ if (battery->present)
+ acpi_battery_set_alarm(battery);
+ return count;
+}
+
+static struct device_attribute alarm_attr = {
+ .attr = {.name = "alarm", .mode = 0644, .owner = THIS_MODULE},
+ .show = acpi_battery_alarm_show,
+ .store = acpi_battery_alarm_store,
+};
+
/* --------------------------------------------------------------------------
FS Interface (/proc/acpi)
-------------------------------------------------------------------------- */
+#ifdef CONFIG_ACPI_PROCFS_POWER
/* Generic Routines */
static int
acpi_sbs_add_fs(struct proc_dir_entry **dir,
.owner = THIS_MODULE,
};
+#endif
+
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
return result;
sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id);
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir,
battery->name, &acpi_battery_info_fops,
&acpi_battery_state_fops, &acpi_battery_alarm_fops,
battery);
+#endif
battery->bat.name = battery->name;
battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
if (!acpi_battery_mode(battery)) {
}
battery->bat.get_property = acpi_sbs_battery_get_property;
result = power_supply_register(&sbs->device->dev, &battery->bat);
+ if (result)
+ goto end;
+ result = device_create_file(battery->bat.dev, &alarm_attr);
+ if (result)
+ goto end;
+ battery->have_sysfs_alarm = 1;
+ end:
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
battery->name, sbs->battery->present ? "present" : "absent");
static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
{
- if (sbs->battery[id].bat.dev)
- power_supply_unregister(&sbs->battery[id].bat);
- if (sbs->battery[id].proc_entry) {
- acpi_sbs_remove_fs(&(sbs->battery[id].proc_entry),
- acpi_battery_dir);
+ struct acpi_battery *battery = &sbs->battery[id];
+
+ if (battery->bat.dev) {
+ if (battery->have_sysfs_alarm)
+ device_remove_file(battery->bat.dev, &alarm_attr);
+ power_supply_unregister(&battery->bat);
}
+#ifdef CONFIG_ACPI_PROCFS_POWER
+ if (battery->proc_entry)
+ acpi_sbs_remove_fs(&battery->proc_entry, acpi_battery_dir);
+#endif
}
static int acpi_charger_add(struct acpi_sbs *sbs)
result = acpi_ac_get_present(sbs);
if (result)
goto end;
+#ifdef CONFIG_ACPI_PROCFS_POWER
result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir,
ACPI_AC_DIR_NAME, NULL,
&acpi_ac_state_fops, NULL, sbs);
if (result)
goto end;
+#endif
sbs->charger.name = "sbs-charger";
sbs->charger.type = POWER_SUPPLY_TYPE_MAINS;
sbs->charger.properties = sbs_ac_props;
{
if (sbs->charger.dev)
power_supply_unregister(&sbs->charger);
+#ifdef CONFIG_ACPI_PROCFS_POWER
if (sbs->charger_entry)
acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir);
+#endif
}
void acpi_sbs_callback(void *context)
static void acpi_sbs_rmdirs(void)
{
+#ifdef CONFIG_ACPI_PROCFS_POWER
if (acpi_ac_dir) {
acpi_unlock_ac_dir(acpi_ac_dir);
acpi_ac_dir = NULL;
acpi_unlock_battery_dir(acpi_battery_dir);
acpi_battery_dir = NULL;
}
+#endif
}
static int acpi_sbs_resume(struct acpi_device *device)
if (acpi_disabled)
return -ENODEV;
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_ac_dir = acpi_lock_ac_dir();
if (!acpi_ac_dir)
return -ENODEV;
acpi_sbs_rmdirs();
return -ENODEV;
}
+#endif
result = acpi_bus_register_driver(&acpi_sbs_driver);
if (result < 0) {
acpi_sbs_rmdirs();