power: Allow device specific hooks for setFeature

* Some devices may want to implement custom hooks
 * Inspired by 6ddb840367

Change-Id: Ie6fd4637d25b55f70c1c7c2cba5decc98c661b51

interfaces/power/default/Android.bp

@@ -20,8 +20,9 @@ soong_config_module_type {
         "target_two_finger_swipe_node",
         "target_draw_s_node",
         "target_single_tap_to_wake_node",
+        "target_power_feature_ext_lib",
     ],
-    properties: ["cppflags"],
+    properties: ["cppflags", "whole_static_libs"],
 }
 
 powerfeature_cc_defaults {
@@ -78,6 +79,10 @@ powerfeature_cc_defaults {
         target_single_tap_to_wake_node: {
             cppflags: ["-DSINGLE_TAP_TO_WAKE_NODE=\"%s\""],
         },
+        target_power_feature_ext_lib: {
+            cppflags: ["-DFEATURE_EXT"],
+            whole_static_libs: ["%s"],
+        },
     },
 }
 

interfaces/power/default/PowerFeature.cpp

@@ -31,7 +31,16 @@ namespace power {
 static constexpr int kInputEventWakeupModeOff = 4;
 static constexpr int kInputEventWakeupModeOn = 5;
 
+#ifdef FEATURE_EXT
+extern bool setDeviceSpecificFeature(Feature feature, bool enabled);
+#endif
+
 ndk::ScopedAStatus PowerFeature::setFeature(Feature feature, bool enabled) {
+#ifdef FEATURE_EXT
+    if (setDeviceSpecificFeature(feature, enabled)) {
+        return ndk::ScopedAStatus::ok();
+    }
+#endif
     switch (feature) {
 #ifdef GESTURES_NODE
         case Feature::GESTURES:

target/board/BoardConfigSoong.mk

@@ -60,7 +60,8 @@ GESTURE_SOONG_VARS := \
     TARGET_ONE_FINGER_SWIPE_LEFT_NODE \
     TARGET_TWO_FINGER_SWIPE_NODE \
     TARGET_DRAW_S_NODE \
-    TARGET_SINGLE_TAP_TO_WAKE_NODE
+    TARGET_SINGLE_TAP_TO_WAKE_NODE \
+    TARGET_POWER_FEATURE_EXT_LIB
 
 $(foreach v,$(GESTURE_SOONG_VARS),$(eval $(call add-gesturevar-if-exist,$(v))))