n7100: use opensource sensor lib instead of blobs

The opensource sensor lib is removed in CM-11.0. I fixed
several issues in the code and bring it back. In order to
pass CTS for Android 5.0, sensor HAL have to support 1_3 version,
this is under working.

Change-Id: I5ffa3b73f5a814a5c7b9fc0d5621e79a70a611b6

1 files changed, 55 insertions, 0 deletions

diff --git a/libsensors/LightSensor.h b/libsensors/LightSensor.h
new file mode 100644
index 0000000..85e65d9
--- /dev/null
+++ b/libsensors/LightSensor.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2008 The Android Open Source 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 ANDROID_LIGHT_SENSOR_H
+#define ANDROID_LIGHT_SENSOR_H
+
+#include <stdint.h>
+#include <errno.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include "sensors.h"
+#include "SensorBase.h"
+#include "InputEventReader.h"
+
+/*****************************************************************************/
+
+struct input_event;
+
+class LightSensor : public SensorBase {
+    int mEnabled;
+    InputEventCircularReader mInputReader;
+    sensors_event_t mPendingEvent;
+    bool mHasPendingEvent;
+    char input_sysfs_path[PATH_MAX];
+    int input_sysfs_path_len;
+
+    float indexToValue(size_t index) const;
+    int setInitialState();
+
+public:
+            LightSensor();
+    virtual ~LightSensor();
+    virtual int readEvents(sensors_event_t* data, int count);
+    virtual bool hasPendingEvents() const;
+    virtual int setDelay(int32_t handle, int64_t ns);
+    virtual int enable(int32_t handle, int enabled);
+};
+
+/*****************************************************************************/
+
+#endif  // ANDROID_LIGHT_SENSOR_H