[PATCH 3/5] ntdll: Added helper functions to get battery info and status

[Tomas Mendes]

From: Tomas Mendes

---
 dlls/ntdll/unix/system.c | 42 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/dlls/ntdll/unix/system.c b/dlls/ntdll/unix/system.c
index 775e2806403..551ef10980e 100644
--- a/dlls/ntdll/unix/system.c
+++ b/dlls/ntdll/unix/system.c
@@ -4018,6 +4018,48 @@ static const char * get_sys_str(const char *dirname, const char *basename, char
     return ret;
 }

+static enum battery_status parse_battery_status(const char *s)
+{
+    if (strcmp(s, "Charging\n") == 0) return BATTERY_CHARGING;
+    if (strcmp(s, "Discharging\n") == 0) return BATTERY_DISCHARGING;
+    if (strcmp(s, "Not charging\n") == 0) return BATTERY_NOT_CHARGING;
+    if (strcmp(s, "Full\n") == 0) return BATTERY_FULL;
+    return BATTERY_UNKNOWN;
+}
+
+static void get_sys_bat(const char *path, struct linux_battery *bat)
+{
+    char s[16];
+
+    bat->present = get_sys_int(path, "present");
+    if (bat->present) return;
+
+    get_sys_str(path, "status", s);
+    bat->status = parse_battery_status(s);
+
+    bat->full_charge_capacity = get_sys_int(path, "energy_full");
+    bat->capacity_now = get_sys_int(path, "energy_now");
+    bat->rate_now = get_sys_int(path, "power_now");
+    bat->power_unit = 1;
+
+    if (!bat->full_charge_capacity || !bat->capacity_now)
+    {
+        bat->full_charge_capacity = get_sys_int(path, "charge_full");
+        bat->capacity_now = get_sys_int(path, "charge_now");
+        bat->voltage_now = get_sys_int(path, "voltage_now");
+        bat->rate_now = get_sys_int(path, "current_now");
+        bat->power_unit = 2;
+        if (!bat->full_charge_capacity || !bat->capacity_now || !bat->voltage_now)
+            bat->power_unit = 0;
+    }
+
+    bat->alarm = get_sys_int(path, "alarm");
+    if(bat->alarm) return;
+
+    bat->capacity_alert_min = get_sys_int(path, "capacity_alert_min");
+    bat->capacity_alert_max = get_sys_int(path, "capacity_alert_max");
+}
+
 static int get_sys_int(const char *dirname, const char *basename)
 {
     char s[16];