1 files changed, 84 insertions, 0 deletions
diff --git a/6515/libsensors_iio/CompassSensor.AKM.h b/6515/libsensors_iio/CompassSensor.AKM.h
new file mode 100644
index 0000000..3d215a4
--- /dev/null
+++ b/6515/libsensors_iio/CompassSensor.AKM.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2012 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 COMPASS_SENSOR_H
+#define COMPASS_SENSOR_H
+
+#include <stdint.h>
+#include <errno.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include "SensorBase.h"
+
+// TODO: include 3rd-party compass vendor's header file
+//       p.s.: before using unified HAL, make sure 3rd-party compass
+//       solution's driver/HAL work well by themselves
+#include "AkmSensor.h"
+
+/*****************************************************************************/
+
+class CompassSensor : public SensorBase {
+
+protected:
+
+public:
+            CompassSensor();
+    virtual ~CompassSensor();
+
+    // TODO: make sure either 3rd-party compass solution has following virtual
+    //       functions, or SensorBase.cpp could provide equal functionalities
+    virtual int getFd() const;
+    virtual int getRawFd() {return 0;};
+    virtual int enable(int32_t handle, int enabled);
+    virtual int setDelay(int32_t handle, int64_t ns);
+    virtual int getEnable(int32_t handle);
+    virtual int64_t getDelay(int32_t handle);
+    virtual int64_t getMinDelay() { return -1; } // stub
+
+    // TODO: unnecessary for MPL solution (override 3rd-party solution)
+    virtual int readEvents(sensors_event_t *data, int count) { return 0; }
+
+    // TODO: following four APIs need further implementation for MPL's
+    //       reference (look into .cpp for detailed information, also refer to
+    //       3rd-party's readEvents() for relevant APIs)
+    int readSample(long *data, int64_t *timestamp);
+    int readRawSample(float *data, int64_t *timestamp);
+    void fillList(struct sensor_t *list);
+    void getOrientationMatrix(signed char *orient);
+    int getAccuracy();
+    virtual void getCompassBias(long *bias) {return;};
+
+    // TODO: if 3rd-party provides calibrated compass data, just return 1
+    int providesCalibration() { return 1; }
+
+    // TODO: hard-coded for 3rd-party's sensitivity transformation
+    long getSensitivity() { return (1L << 30); }
+    
+    /* all 3rd pary solution have compasses on the primary bus, hence they
+       have no dependency on the MPU */
+    int isIntegrated() { return 0; }
+
+    int checkCoilsReset(void) { return 0; };
+    int isYasCompass(void) { return 0; };
+
+private:
+    AkmSensor *mCompassSensor;
+};
+
+/*****************************************************************************/
+
+#endif  // COMPASS_SENSOR_H