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-rw-r--r--libsensors/akmdfs/AKFS_APIs_8975/AKFS_AK8975.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/libsensors/akmdfs/AKFS_APIs_8975/AKFS_AK8975.c b/libsensors/akmdfs/AKFS_APIs_8975/AKFS_AK8975.c
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+++ b/libsensors/akmdfs/AKFS_APIs_8975/AKFS_AK8975.c
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+/******************************************************************************
+ *
+ * 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.
+ *
+ ******************************************************************************/
+#include "AKFS_AK8975.h"
+#include "AKFS_Device.h"
+
+/*!
+ */
+int16 AKFS_DecompAK8975(
+ const int16 mag[3],
+ const int16 status,
+ const uint8vec* asa,
+ const int16 nhdata,
+ AKFVEC hdata[]
+)
+{
+ /* put st1 and st2 value */
+ if (AK8975_ST_ERROR(status)) {
+ return AKFS_ERROR;
+ }
+
+ /* magnetic */
+ AKFS_BufShift(nhdata, 1, hdata);
+ hdata[0].u.x = mag[0] * (((asa->u.x)/256.0f) + 0.5f);
+ hdata[0].u.y = mag[1] * (((asa->u.y)/256.0f) + 0.5f);
+ hdata[0].u.z = mag[2] * (((asa->u.z)/256.0f) + 0.5f);
+
+ return AKFS_SUCCESS;
+}
+