mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2026-01-08 00:21:46 +00:00
e095bad64e
Add code for set/getting calibration data on bmi160 Add code to perform FOC (Fast Online Calibration) on bmi160. Add delay after getting out of suspend to be sure sensor is available. BRANCH=smaug TEST=Check sensors are properly calibrated on Smaug: Perform calibration: echo 1 > /sys/bus/iio/devices/iio:device1/calibrate Read calibration values: cat /sys/bus/iio/devices/iio:device1/*_calibbias Check the values are translated properly. Write calibration values and check it affects the sensor output. BUG=chromium:506101,chrome-os-partner:39900 Change-Id: Ib9aad9bbd90b4249625641d68febf94b69aa4987 Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/283165 Reviewed-by: Alec Berg <alecaberg@chromium.org>
126 lines
4.1 KiB
C
126 lines
4.1 KiB
C
/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#ifndef __CROS_EC_ACCELGYRO_H
|
|
#define __CROS_EC_ACCELGYRO_H
|
|
|
|
#include "motion_sense.h"
|
|
|
|
/* Header file for accelerometer / gyro drivers. */
|
|
|
|
/* Number of counts from accelerometer that represents 1G acceleration. */
|
|
#define ACCEL_G 1024
|
|
|
|
struct accelgyro_drv {
|
|
/**
|
|
* Initialize accelerometers.
|
|
* @s Pointer to sensor data pointer. Sensor data will be
|
|
* allocated on success.
|
|
* @return EC_SUCCESS if successful, non-zero if error.
|
|
*/
|
|
int (*init)(const struct motion_sensor_t *s);
|
|
|
|
/**
|
|
* Read all three accelerations of an accelerometer. Note that all
|
|
* three accelerations come back in counts, where ACCEL_G can be used
|
|
* to convert counts to engineering units.
|
|
* @s Pointer to sensor data.
|
|
* @v Vector to store acceleration (in units of counts).
|
|
* @return EC_SUCCESS if successful, non-zero if error.
|
|
*/
|
|
int (*read)(const struct motion_sensor_t *s, vector_3_t v);
|
|
|
|
/**
|
|
* Setter and getter methods for the sensor range. The sensor range
|
|
* defines the maximum value that can be returned from read(). As the
|
|
* range increases, the resolution gets worse.
|
|
* @s Pointer to sensor data.
|
|
* @range Range (Units are +/- G's for accel, +/- deg/s for gyro)
|
|
* @rnd Rounding flag. If true, it rounds up to nearest valid
|
|
* value. Otherwise, it rounds down.
|
|
* @return EC_SUCCESS if successful, non-zero if error.
|
|
*/
|
|
int (*set_range)(const struct motion_sensor_t *s,
|
|
int range,
|
|
int rnd);
|
|
int (*get_range)(const struct motion_sensor_t *s,
|
|
int *range);
|
|
|
|
/**
|
|
* Setter and getter methods for the sensor resolution.
|
|
* @s Pointer to sensor data.
|
|
* @range Resolution (Units are number of bits)
|
|
* param rnd Rounding flag. If true, it rounds up to nearest valid
|
|
* value. Otherwise, it rounds down.
|
|
* @return EC_SUCCESS if successful, non-zero if error.
|
|
*/
|
|
int (*set_resolution)(const struct motion_sensor_t *s,
|
|
int res,
|
|
int rnd);
|
|
int (*get_resolution)(const struct motion_sensor_t *s,
|
|
int *res);
|
|
|
|
/**
|
|
* Setter and getter methods for the sensor output data range. As the
|
|
* ODR increases, the LPF roll-off frequency also increases.
|
|
* @s Pointer to sensor data.
|
|
* @rate Output data rate (units are milli-Hz)
|
|
* @rnd Rounding flag. If true, it rounds up to nearest valid
|
|
* value. Otherwise, it rounds down.
|
|
* @return EC_SUCCESS if successful, non-zero if error.
|
|
*/
|
|
int (*set_data_rate)(const struct motion_sensor_t *s,
|
|
int rate,
|
|
int rnd);
|
|
int (*get_data_rate)(const struct motion_sensor_t *s,
|
|
int *rate);
|
|
|
|
|
|
/**
|
|
* Setter and getter methods for the sensor offset.
|
|
* @s Pointer to sensor data.
|
|
* @offset: offset to apply to raw data.
|
|
* @temp: temperature when calibration was done.
|
|
* @return EC_SUCCESS if successful, non-zero if error.
|
|
*/
|
|
int (*set_offset)(const struct motion_sensor_t *s,
|
|
const int16_t *offset,
|
|
int16_t temp);
|
|
int (*get_offset)(const struct motion_sensor_t *s,
|
|
int16_t *offset,
|
|
int16_t *temp);
|
|
int (*perform_calib)(const struct motion_sensor_t *s);
|
|
#ifdef CONFIG_ACCEL_INTERRUPTS
|
|
/**
|
|
* Setup a one-time accel interrupt. If the threshold is low enough, the
|
|
* interrupt may trigger due simply to noise and not any real motion.
|
|
* If the threshold is 0, the interrupt will fire immediately.
|
|
* @s Pointer to sensor data.
|
|
* @threshold Threshold for interrupt in units of counts.
|
|
*/
|
|
int (*set_interrupt)(const struct motion_sensor_t *s,
|
|
unsigned int threshold);
|
|
|
|
/**
|
|
* handler for interrupts triggered by the sensor: it runs in task and
|
|
* process the events that triggered an interrupt.
|
|
* @s Pointer to sensor data.
|
|
*/
|
|
int (*irq_handler)(const struct motion_sensor_t *s);
|
|
#endif
|
|
#ifdef CONFIG_ACCEL_FIFO
|
|
/**
|
|
* Retrieve hardware FIFO from sensor,
|
|
* - put data in Sensor Hub fifo.
|
|
* - update sensor raw_xyz vector with the last information.
|
|
* We put raw data in hub fifo and process data from theres.
|
|
* @s Pointer to sensor data.
|
|
*/
|
|
int (*load_fifo)(struct motion_sensor_t *s);
|
|
#endif
|
|
};
|
|
|
|
#endif /* __CROS_EC_ACCELGYRO_H */
|