healthd: support reading charge status from BatteryMonitor.

recovery needs to know whether the battery is charged.

Bug: 26879394
Change-Id: Ie2a1d06e81878efa3ff432c2015d409a625e473e

1 files changed, 11 insertions, 0 deletions

diff --git a/healthd/BatteryMonitor.cpp b/healthd/BatteryMonitor.cpp
index 2022ae7ef..477148bd9 100644
--- a/healthd/BatteryMonitor.cpp
+++ b/healthd/BatteryMonitor.cpp
@@ -341,6 +341,17 @@ bool BatteryMonitor::update(void) {
             props.chargerWirelessOnline;
 }
 
+int BatteryMonitor::getChargeStatus() {
+    int result = BATTERY_STATUS_UNKNOWN;
+    if (!mHealthdConfig->batteryStatusPath.isEmpty()) {
+        char buf[128];
+        if (readFromFile(mHealthdConfig->batteryStatusPath, buf, sizeof(buf)) > 0) {
+            result = getBatteryStatus(buf);
+        }
+    }
+    return result;
+}
+
 status_t BatteryMonitor::getProperty(int id, struct BatteryProperty *val) {
     status_t ret = BAD_VALUE;