Add several interrupt based sensor detection events: - single tap - double tap - free fall - activity - inactivity All the needed parameters for each and methods of adjusting them, and forward a resulting IIO event for each to the IIO channel. The sensor has further features still not covered: - g-ranges scaled by different ODRs, especially for activity / inactivity threshold is not covered so far. There seems to be a particularity with the ADXL345 as annotated on some analog FAQ. - Various thinks like low power, sleep mode, etc. are (still) not covered here, others (ACDC bit, selftest, etc.) currently are hard coded or not covered. Signed-off-by: Lothar Rubusch <l.rubusch@xxxxxxxxx> --- Questions: - Do I need a mutex/lock protection as this is the case e.g. in the ADXL367 or the ADXL380? Actually, I understand those cases as protecting access to the state object by different channels, temperature and accelerometer. I'm unsure if this is a correct understanding, where for the ADXL345 there should not be any issue. At most, a currently displayed value on sysfs is (still) not updated. So, IMHO I can rely on the internal protections in regmap no further mutex is needed. Please, can you give me a feedback here? - FIELD_PREP/FIELD_GET: I'd like to use arrays of enum indexed elements to allow for more generic function implementation passing just a "type" field, e.g. at single tap/double tap or activity/inactivity handling. When it comes to filtering out bits using FIELD_GET/FIELD_PREP, it says that this enum array element is not "const enough". Is there a work-around? Lothar Rubusch (12): iio: accel: adxl345: migrate constants to core iio: accel: adxl345: reorganize measurement enable iio: accel: adxl345: add debug register access iio: accel: adxl345: reorganize irq handler iio: accel: adxl345: improve access to the interrupt enable register iio: accel: adxl345: add single tap feature iio: accel: adxl345: show tap status and direction iio: accel: adxl345: add double tap feature iio: accel: adxl345: add double tap suppress bit iio: accel: adxl345: add freefall feature iio: accel: adxl345: add activity feature iio: accel: adxl345: add inactivity feature drivers/iio/accel/adxl345.h | 86 --- drivers/iio/accel/adxl345_core.c | 1150 ++++++++++++++++++++++++++++-- 2 files changed, 1099 insertions(+), 137 deletions(-) -- 2.39.5
