[PATCH 9/9] ACPI: SBS: Add sysfs alarm

Alexey Starikovskiy
2007-08-31T20:11:51Z

drivers/acpi/sbs.c | 36 ++++++++++++++++++++++++++++++++++++
1 files changed, 36 insertions(+), 0 deletions(-)

diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 21a65f9..3f249df 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -447,6 +447,40 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
return result;
}

+#ifdef ENABLE_POWER_SUPPLY
+
+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,
+};
+
+#endif
+
/* --------------------------------------------------------------------------
FS Interface (/proc/acpi)
-------------------------------------------------------------------------- */
@@ -792,6 +826,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
}
battery->bat.get_property = acpi_sbs_battery_get_property;
result = power_supply_register(&sbs->device->dev, &battery->bat);
+ device_create_file(battery->bat.dev, &alarm_attr);
#endif
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
@@ -803,6 +838,7 @@ static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
{
#ifdef ENABLE_POWER_SUPPLY
if (sbs->battery[id].bat.dev)
+ device_remove_file(sbs->battery[id].bat.dev, &alarm_attr);
power_supply_unregister(&sbs->battery[id].bat);
#endif
#ifdef CONFIG_ACPI_PROCFS