Add several interrupt based sensor detection events: - single tap - double tap - free fall - activity - inactivity - sample frequency - full frequency g range approach - documentation All the needed parameters for each and methods of adjusting them, and forward a resulting IIO event for each to the IIO channel. Signed-off-by: Lothar Rubusch <l.rubusch@xxxxxxxxx> --- v3 -> v4: - rename patch "add double tap suppress bit" to "set the tap suppress bit permanently" to make it more comprehensive - added patch "cleanup regmap return values" - added patch "introduce adxl345_push_event function", as a solution to the return value problem, group all int_stat evaluating pieces in the same function - tap, act and inact axis enabling are using now regmap cache - activity enable depending on individual axis now, as the sensor offers such feature - inactivity enable depending on individual axis now, as the sensor offers such feature - fix bug in previous patch: separate axis direction in interrupt handler sharing the same variable for tap and activity, if tap and activity enabled together - refac of the direction identification of previous patch: only read act/tap axis once now in interrupt handler if both is enabled - fix bug in previous patch: return value of pushed event in interrupt handler - several cleanups v2 -> v3: - generally introduction of regmap cache for all directly stored 8-bit values, specification of volatile regs and cleanup - moving thresholds, unchanged values and flags to regmap cache, in consequence removal of corresponding member values of the state instance - removal of intio and int_map member fields due to regmap cache, thus split of set_interrupts() patches in two parts - rework documentation - rework of ac-bit comment v1 -> v2: - implementation of all events (but tap2 suppress bit) by means IIO ABI - add sample frequency / ODR configuration - add g ranges configuration - add activity/inactivity using auto-sleep and powersave - add dynamic adjustment of default values for activity/inactivity thresholds and time for inactivity based on ODR and g range (can be overwritten) - add sensor documentation --- Lothar Rubusch (14): iio: accel: adxl345: use regmap cache for INT mapping iio: accel: adxl345: move INT enable to regmap cache iio: accel: adxl345: cleanup regmap return values iio: accel: adxl345: introduce adxl345_push_event function iio: accel: adxl345: add single tap feature iio: accel: adxl345: add double tap feature iio: accel: adxl345: set the tap suppress bit permanently iio: accel: adxl345: add freefall feature iio: accel: adxl345: extend sample frequency adjustments iio: accel: adxl345: add g-range configuration iio: accel: adxl345: add activity event feature iio: accel: adxl345: add inactivity feature iio: accel: adxl345: add coupling detection for activity/inactivity docs: iio: add documentation for adxl345 driver Documentation/iio/adxl345.rst | 416 +++++++++ drivers/iio/accel/adxl345.h | 6 +- drivers/iio/accel/adxl345_core.c | 1449 ++++++++++++++++++++++++++++-- drivers/iio/accel/adxl345_i2c.c | 2 + drivers/iio/accel/adxl345_spi.c | 2 + 5 files changed, 1792 insertions(+), 83 deletions(-) create mode 100644 Documentation/iio/adxl345.rst -- 2.39.5
