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_ */
37