AKM sensor code for AK8975

This package includes the following components.

1) Sensor Control Program (AK8975_FS/akmdfs)
   Source code of Daemon program to control sensor and to output
   calculated value.

2) Sensor HAL Module (AK8975_FS/libsensors)
   This is a sample implementation of HAL module, which can be
   connected to SensorManager.

Change-Id: If68fdbfb5c4133a34f48445a5a1769f2f6eab771
Signed-off-by: Tsuyoshi Masuda <masuda.tv@om.asahi-kasei.co.jp>

1 files changed, 103 insertions, 0 deletions

diff --git a/AK8975_FS/akmdfs/AK8975Driver.h b/AK8975_FS/akmdfs/AK8975Driver.h
new file mode 100644
index 0000000..2f226ac
--- /dev/null
+++ b/AK8975_FS/akmdfs/AK8975Driver.h
@@ -0,0 +1,103 @@
+/******************************************************************************
+ * $Id: AK8975Driver.h 580 2012-03-29 09:56:21Z yamada.rj $
+ ******************************************************************************
+ *
+ * Copyright (C) 2012 Asahi Kasei Microdevices Corporation, Japan
+ *
+ * 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 AKMD_INC_AK8975DRIVER_H
+#define AKMD_INC_AK8975DRIVER_H
+
+#include "platform/include/linux/akm8975.h"	/* Device driver */
+#include <stdint.h>			/* int8_t, int16_t etc. */
+
+/*** Constant definition ******************************************************/
+#define AKD_TRUE	1		/*!< Represents true */
+#define AKD_FALSE	0		/*!< Represents false */
+#define AKD_SUCCESS	1		/*!< Represents success.*/
+#define AKD_FAIL	0		/*!< Represents fail. */
+#define AKD_ERROR	-1		/*!< Represents error. */
+
+/*! 0:Don't Output data, 1:Output data */
+#define AKD_DBG_DATA	0
+/*! Typical interval in ns */
+#define AK8975_MEASUREMENT_TIME_NS	((AK8975_MEASUREMENT_TIME_US) * 1000)
+/*! 720 LSG = 1G = 9.8 m/s2 */
+#define LSG			720
+
+
+/*** Type declaration *********************************************************/
+typedef unsigned char BYTE;
+
+/*!
+ Open device driver.
+ This function opens device driver of acceleration sensor.
+ @return If this function succeeds, the return value is #AKD_SUCCESS. Otherwise
+ the return value is #AKD_FAIL.
+ */
+typedef int16_t(*ACCFNC_INITDEVICE)(void);
+
+/*!
+ Close device driver.
+ This function closes device drivers of acceleration sensor.
+ */
+typedef void(*ACCFNC_DEINITDEVICE)(void);
+
+/*!
+ Acquire acceleration data from acceleration sensor and convert it to Android
+ coordinate system.
+ @return If this function succeeds, the return value is #AKD_SUCCESS. Otherwise
+ the return value is #AKD_FAIL.
+ @param[out] data A acceleration data array. The coordinate system of the
+ acquired data follows the definition of Android. Unit is SmartCompass.
+ */
+typedef int16_t(*ACCFNC_GETACCDATA)(short data[3]);
+
+
+/*** Global variables *********************************************************/
+
+/*** Prototype of Function  ***************************************************/
+
+int16_t AKD_InitDevice(void);
+
+void AKD_DeinitDevice(void);
+
+int16_t AKD_TxData(
+	const BYTE address,
+	const BYTE* data,
+	const uint16_t numberOfBytesToWrite);
+
+int16_t AKD_RxData(
+	const BYTE address,
+	BYTE* data,
+	const uint16_t numberOfBytesToRead);
+
+int16_t AKD_GetMagneticData(BYTE data[SENSOR_DATA_SIZE]);
+
+void AKD_SetYPR(const int buf[YPR_DATA_SIZE]);
+
+int AKD_GetOpenStatus(int* status);
+
+int AKD_GetCloseStatus(int* status);
+
+int16_t AKD_SetMode(const BYTE mode);
+
+int16_t AKD_GetDelay(int64_t delay[AKM_NUM_SENSORS]);
+
+int16_t AKD_GetLayout(int16_t* layout);
+
+int16_t AKD_GetAccelerationData(int16_t data[3]);
+
+#endif /* AKMD_INC_AK8975DRIVER_H */
+