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| author | Gwendal Grignou <gwendal@chromium.org> | 2019-06-20 12:58:01 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2019-07-24 22:51:28 +0000 |
| commit | fa1d673cfb32a89c5a067a06226dffb37ea2ed70 (patch) | |
| tree | 050262f8c8b6a953e67a2c62d870bc5bf00af737 /driver/accel_bma2x2.c | |
| parent | c30486beadfa9c2e9458586c6ebd5e977b85b014 (diff) | |
| download | chrome-ec-fa1d673cfb32a89c5a067a06226dffb37ea2ed70.tar.gz | |
driver: Add support for calibration mode
For TCS3400, performing calibration is not just a one-shot event:
The RBG sensor stays in calibration mode: returns raw value in R, G, B
space.
When out of calibration, it returns light information in X, Y and Z
space.
BUG=b:124512628
BRANCH=hatch,flapjack
TEST=unit test
Change-Id: I6766907054c8e79a3cbcb629ef91a0967ea0780a
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1702543
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Diffstat (limited to 'driver/accel_bma2x2.c')
| -rw-r--r-- | driver/accel_bma2x2.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/driver/accel_bma2x2.c b/driver/accel_bma2x2.c index d828912232..9a63bdc1ba 100644 --- a/driver/accel_bma2x2.c +++ b/driver/accel_bma2x2.c @@ -188,11 +188,14 @@ static int read(const struct motion_sensor_t *s, intv3_t v) return EC_SUCCESS; } -static int perform_calib(const struct motion_sensor_t *s) +static int perform_calib(const struct motion_sensor_t *s, int enable) { int ret, val, status, rate, range, i; timestamp_t deadline; + if (!enable) + return EC_SUCCESS; + ret = raw_read8(s->port, s->i2c_spi_addr_flags, BMA2x2_OFFSET_CTRL_ADDR, &val); if (ret) |