n7100: Bring back open source sensors

This reverts commit 00ac0f43785afd63a16b74034f4701928e941360.

Change-Id: I810bad7b533d8c8edf0152b36874789e02994bad

n7100: sensors: Fix buffer size
Change-Id: I93a999a47ade6982c0b1fec56d611465f8dad830

Conflicts:
	n7100.mk

1 files changed, 66 insertions, 0 deletions

diff --git a/libsensors/AkmSensor.h b/libsensors/AkmSensor.h
new file mode 100644
index 0000000..8d488f5
--- /dev/null
+++ b/libsensors/AkmSensor.h
@@ -0,0 +1,66 @@
+/*
+ * 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_AKM_SENSOR_H
+#define ANDROID_AKM_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 AkmSensor : public SensorBase {
+public:
+            AkmSensor();
+    virtual ~AkmSensor();
+
+    enum {
+        Accelerometer   = 0,
+        MagneticField   = 1,
+        Orientation     = 2,
+        numSensors
+    };
+
+    virtual int setDelay(int32_t handle, int64_t ns);
+    virtual int enable(int32_t handle, int enabled);
+    virtual int readEvents(sensors_event_t* data, int count);
+    void processEvent(int code, int value);
+
+    int setInitialState();
+
+private:
+    int loadAKMLibrary();
+    int update_delay();
+    void *mLibAKM;
+    uint32_t mEnabled;
+    uint32_t mPendingMask;
+    InputEventCircularReader mInputReader;
+    sensors_event_t mPendingEvents[numSensors];
+    uint64_t mDelays[numSensors];
+};
+
+/*****************************************************************************/
+
+#endif  // ANDROID_AKM_SENSOR_H