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| author | Ching-Kang Yen <chingkang@chromium.org> | 2020-07-30 17:37:08 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-09-03 07:15:38 +0000 |
| commit | 90c79d90699268d31a3a2d8f48af5955e493005b (patch) | |
| tree | d6b16ac11119d1fd117ef5279ddf40e27da6cc79 /driver/accelgyro_bmi260.h | |
| parent | e9d86fc334f71d6f0daf44f9bc0f9ee311620095 (diff) | |
| download | chrome-ec-90c79d90699268d31a3a2d8f48af5955e493005b.tar.gz | |
driver: bmi: add get_rms_noise() for body detection
We will need the amount of noise for body detection.
The amount of noise in accelometer will depends on several thing, e.g.,
output data rate.
Add get_rms_noise() function to get the root mean square
of noise in BMI.
BRANCH=None
BUG=b:123434029
TEST=buildall
Signed-off-by: Ching-Kang Yen <chingkang@chromium.org>
Change-Id: Ia56bbd2cdb36bee771beb9df32451d3e56f4f028
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2329112
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Heng-ruey Hsu <henryhsu@chromium.org>
Diffstat (limited to 'driver/accelgyro_bmi260.h')
| -rw-r--r-- | driver/accelgyro_bmi260.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/driver/accelgyro_bmi260.h b/driver/accelgyro_bmi260.h index 4358e657fe..9c7edc0766 100644 --- a/driver/accelgyro_bmi260.h +++ b/driver/accelgyro_bmi260.h @@ -327,9 +327,11 @@ #define BMI260_FF_FRAME_LEN_TS 4 #define BMI260_FF_DATA_LEN_ACC 6 #define BMI260_FF_DATA_LEN_GYR 6 - #define BMI260_FF_DATA_LEN_MAG 8 +/* Root mean square noise of 100Hz accelerometer, units: ug */ +#define BMI260_ACCEL_RMS_NOISE_100HZ 1060 + extern const struct accelgyro_drv bmi260_drv; void bmi260_interrupt(enum gpio_signal signal); |