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/* Magnetometer maximum frequency */
14#define INV_MPU_MAGN_FREQ_HZ_MAX	50
15
16int inv_mpu_magn_probe(struct inv_mpu6050_state *st);
17
18/**
19 * inv_mpu_magn_get_scale() - get magnetometer scale value
20 * @st: driver internal state
21 *
22 * Returns IIO data format.
23 */
24static inline int inv_mpu_magn_get_scale(const struct inv_mpu6050_state *st,
25					 const struct iio_chan_spec *chan,
26					 int *val, int *val2)
27{
28	*val = 0;
29	*val2 = st->magn_raw_to_gauss[chan->address];
30	return IIO_VAL_INT_PLUS_MICRO;
31}
32
33int inv_mpu_magn_set_rate(const struct inv_mpu6050_state *st, int fifo_rate);
34
35int inv_mpu_magn_set_orient(struct inv_mpu6050_state *st);
36
37int inv_mpu_magn_read(struct inv_mpu6050_state *st, int axis, int *val);
38
39#endif		/* INV_MPU_MAGN_H_ */
40