Refactor TARGET_TAP_TO_WAKE_NODEstaging/lineage-15.0

Add TARGET_POWER_SET_FEATURE_LIB, since other devices
are not simply writing a 0/1 to a device node.
TARGET_TAP_TO_WAKE_NODE is still valid and both
TARGET_TAP_TO_WAKE_NODE and TARGET_POWER_SET_FEATURE_LIB are
allowed to coexist. (Currently set_feature only has double tap
to wake, but it may be extended in future)

Change-Id: I5c6204fd38a6fbe48e8aac49843bfa047c4b6436

3 files changed, 35 insertions, 0 deletions

diff --git a/Android.mk b/Android.mk
index 068c880..d78fb85 100644
--- a/Android.mk
+++ b/Android.mk
@@ -69,6 +69,10 @@ ifeq ($(call is-board-platform-in-list,msm8916), true)
 LOCAL_SRC_FILES += power-8916.c
 endif
 
+ifneq ($(TARGET_POWER_SET_FEATURE_LIB),)
+    LOCAL_STATIC_LIBRARIES += $(TARGET_POWER_SET_FEATURE_LIB)
+endif
+
 ifeq ($(TARGET_USES_INTERACTION_BOOST),true)
     LOCAL_CFLAGS += -DINTERACTION_BOOST
 endif
diff --git a/power-feature.h b/power-feature.h
new file mode 100644
index 0000000..595e3dd
--- /dev/null
+++ b/power-feature.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2015 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _QCOM_POWER_FEATURE_H
+#define _QCOM_POWER_FEATURE_H
+
+#include <hardware/power.h>
+
+void set_device_specific_feature(struct power_module *module, feature_t feature, int state);
+
+#endif
diff --git a/power.c b/power.c
index 5bc29a0..6568ca5 100644
--- a/power.c
+++ b/power.c
@@ -47,6 +47,7 @@
 #include "hint-data.h"
 #include "performance.h"
 #include "power-common.h"
+#include "power-feature.h"
 
 static int saved_dcvs_cpu0_slack_max = -1;
 static int saved_dcvs_cpu0_slack_min = -1;
@@ -453,6 +454,11 @@ void set_interactive(struct power_module *module, int on)
     saved_interactive_mode = !!on;
 }
 
+void __attribute__((weak)) set_device_specific_feature(struct power_module *module __unused,
+                                            feature_t feature __unused, int state __unused)
+{
+}
+
 static void set_feature(struct power_module *module, feature_t feature, int state)
 {
     switch (feature) {
@@ -464,6 +470,7 @@ static void set_feature(struct power_module *module, feature_t feature, int stat
         default:
             break;
     }
+    set_device_specific_feature(module, feature, state);
 }
 
 static int power_device_open(const hw_module_t* module, const char* name,