summaryrefslogtreecommitdiffstats
path: root/drivers/iio/imu/inv_mpu6050/inv_mpu_magn.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/iio/imu/inv_mpu6050/inv_mpu_magn.h')
-rw-r--r--drivers/iio/imu/inv_mpu6050/inv_mpu_magn.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_magn.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_magn.h
new file mode 100644
index 000000000..185c000c6
--- /dev/null
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_magn.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019 TDK-InvenSense, Inc.
+ */
+
+#ifndef INV_MPU_MAGN_H_
+#define INV_MPU_MAGN_H_
+
+#include <linux/kernel.h>
+
+#include "inv_mpu_iio.h"
+
+/* Magnetometer maximum frequency */
+#define INV_MPU_MAGN_FREQ_HZ_MAX 50
+
+int inv_mpu_magn_probe(struct inv_mpu6050_state *st);
+
+/**
+ * inv_mpu_magn_get_scale() - get magnetometer scale value
+ * @st: driver internal state
+ *
+ * Returns IIO data format.
+ */
+static inline int inv_mpu_magn_get_scale(const struct inv_mpu6050_state *st,
+ const struct iio_chan_spec *chan,
+ int *val, int *val2)
+{
+ *val = 0;
+ *val2 = st->magn_raw_to_gauss[chan->address];
+ return IIO_VAL_INT_PLUS_MICRO;
+}
+
+int inv_mpu_magn_set_rate(const struct inv_mpu6050_state *st, int fifo_rate);
+
+int inv_mpu_magn_set_orient(struct inv_mpu6050_state *st);
+
+int inv_mpu_magn_read(struct inv_mpu6050_state *st, int axis, int *val);
+
+#endif /* INV_MPU_MAGN_H_ */