drivers/iio/imu/inv_mpu6050/inv_mpu_magn.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 2019 TDK-InvenSense, Inc.
   4  */
   5
   6 #ifndef INV_MPU_MAGN_H_
   7 #define INV_MPU_MAGN_H_
   8
   9 #include <linux/kernel.h>
  10
  11 #include "inv_mpu_iio.h"
  12
  13 int inv_mpu_magn_probe(struct inv_mpu6050_state *st);
  14
  15 /**
  16  * inv_mpu_magn_get_scale() - get magnetometer scale value
  17  * @st: driver internal state
  18  *
  19  * Returns IIO data format.
  20  */
  21 static inline int inv_mpu_magn_get_scale(const struct inv_mpu6050_state *st,
  22                                          const struct iio_chan_spec *chan,
  23                                          int *val, int *val2)
  24 {
  25         *val = 0;
  26         *val2 = st->magn_raw_to_gauss[chan->address];
  27         return IIO_VAL_INT_PLUS_MICRO;
  28 }
  29
  30 int inv_mpu_magn_set_rate(const struct inv_mpu6050_state *st, int fifo_rate);
  31
  32 int inv_mpu_magn_set_orient(struct inv_mpu6050_state *st);
  33
  34 int inv_mpu_magn_read(const struct inv_mpu6050_state *st, int axis, int *val);
  35
  36 #endif          /* INV_MPU_MAGN_H_ */