i9300: add opensource sensors hal

Change-Id: Ia104c31f165fcaca1ee5dc471f7d71ca9abd387f

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
new file mode 100644
index 0000000..7bac9a1
--- /dev/null
+++ b/libsensors/akmdfs/AKFS_APIs_8975/AKFS_AK8975.c
@@ -0,0 +1,44 @@
+/******************************************************************************
+ *
+ * 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;
+}
+