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driver: bmi160 Add code for calibration

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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>
This commit is contained in:
Gwendal Grignou
2015-07-01 12:39:07 -07:00
committed by ChromeOS Commit Bot
parent c0f78b4c0a
commit e095bad64e
7 changed files with 223 additions and 63 deletions
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1
include/accelgyro.h
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@@ -91,6 +91,7 @@ struct accelgyro_drv {
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

5
include/ec_commands.h
View File

@@ -1907,14 +1907,13 @@ struct ec_response_motion_sense {
struct {
/* Current value of the parameter queried. */
int32_t ret;
} ec_rate, sensor_odr, sensor_range, kb_wake_angle,
perform_calib;
} ec_rate, sensor_odr, sensor_range, kb_wake_angle;
/* Used for MOTIONSENSE_CMD_SENSOR_OFFSET */
struct {
int16_t temp;
int16_t offset[3];
} sensor_offset;
} sensor_offset, perform_calib;
struct ec_response_motion_sense_fifo_info fifo_info, fifo_flush;