diff options
Diffstat (limited to 'drivers/iio/imu/inv_mpu6050/inv_mpu_magn.h')
-rw-r--r-- | drivers/iio/imu/inv_mpu6050/inv_mpu_magn.h | 39 |
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 0000000000..185c000c69 --- /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_ */ |