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| author | Aseda Aboagye <aaboagye@google.com> | 2015-04-15 17:03:22 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-04-20 18:46:08 +0000 |
| commit | d02620a05d071dabdeebe83a1e17091c89748e99 (patch) | |
| tree | 85c29f99dfa289a3b585772d1ec379c7272c3ec2 /driver/accelgyro_lsm6ds0.h | |
| parent | a97af9a8b22c16a8427c960a0ab423c4fdfdf435 (diff) | |
| download | chrome-ec-d02620a05d071dabdeebe83a1e17091c89748e99.tar.gz | |
lsm6ds0: Cache ODR and range on EC.
For the driver functions get_range and get_data_rate, each call would
end up executing an i2c transaction even if the value had not
changed. Therefore, I modified the lsm6ds0 driver to cache the output
data rate as well as the range. This prevents unecessary i2c
transactions from occuring.
BUG=chromium:476226
TEST=Flashed EC on samus and verified that the accelrange and accelrate
commands still worked and that the sensors were functional.
TEST=Verified Double Tap still worked.
TEST=make -j buildall tests
BRANCH=none
Change-Id: Ie432979266dc4e4892978005de5d1df62cc0654f
Signed-off-by: Aseda Aboagye <aaboagye@google.com>
Reviewed-on: https://chromium-review.googlesource.com/265933
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Aseda Aboagye <aaboagye@chromium.org>
Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Diffstat (limited to 'driver/accelgyro_lsm6ds0.h')
| -rw-r--r-- | driver/accelgyro_lsm6ds0.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/driver/accelgyro_lsm6ds0.h b/driver/accelgyro_lsm6ds0.h index c71fc37767..9f8953395d 100644 --- a/driver/accelgyro_lsm6ds0.h +++ b/driver/accelgyro_lsm6ds0.h @@ -116,6 +116,14 @@ enum lsm6ds0_bdu { /* Sensor resolution in number of bits. This sensor has fixed resolution. */ #define LSM6DS0_RESOLUTION 16 +/* Run-time configurable parameters */ +struct lsm6ds0_data { + /* Current range */ + int sensor_range; + /* Current output data rate */ + int sensor_odr; +}; + extern const struct accelgyro_drv lsm6ds0_drv; #endif /* __CROS_EC_ACCEL_LSM6DS0_H */ |