Add a more complete support for vncl4040 and vcnl4200, which allows to
change the distance of proximity detection and interrupt support for the
illuminance sensor.
Proximity functionality:
- Interrupt support (new on vcnl4200).
Proximity reduce the amount of interrupts:
- Adaptable integration time (new on vcnl4200) - the sampling rate
changes according to this value.
- Period - interrupt is asserted if the value is above or
below a certain threshold.
Proximity change the activity distance:
- Oversampling ratio - Amount of LED pulses per measured raw value.
- Calibration bias - LED current calibration of the sensor.
Illuminance functionality:
- Interrupt support.
Illuminance reduce the amount of interrupts:
- Adaptable integration time - the sampling rate and scale changes
according to this value.
- Period – interrupt is asserted if the value is above or
below a certain threshold.
changes v2:
- [PATCH v2 3/7] Fixed calculation of al_scale.
Fix the value of vcnl4040 according to the data-sheet.
Use div_u64 for the division.
scription for the branch
changes v3:
- [PATCH v3 1-3/7] Add differences between the chips as variables in
chip-spec.
- [PATCH v3 4/7] Changed commit message.
- [PATCH v3 5/7] Use period instead of debounce time. This causes some
calculations as the period is a time and the chip allows to set a certain
amount of measurements above/below the threshold, before throwing an
interrupt.
- [PATCH v3 6/7] Changed commit message.
changes v4:
- [PATCH v3 1-3/7] Fix setting correct als_it for vcnl4040.
- [PATCH v3 5/7] Use MICRO macro.
Fix values greater than 1 s for the proximity period.
Astrid Rost (7):
[PATCH v4 1/7] iio: light: vcnl4000: Add proximity irq for vcnl4200
[PATCH v4 2/7] iio: light: vcnl4000: Add proximity ps_it for vcnl4200
[PATCH v4 3/7] iio: light: vcnl4000: Add als_it for vcnl4040/4200
[PATCH v4 4/7] iio: light: vcnl4000: add illuminance irq vcnl4040/4200
[PATCH v4 5/7] iio: light: vcnl4000: Add period for vcnl4040/4200
[PATCH v4 6/7] iio: light: vcnl4000: Add oversampling_ratio for 4040/4200
[PATCH v4 7/7] iio: light: vcnl4000: Add calibration bias for 4040/4200
drivers/iio/light/vcnl4000.c | 721 +++++++++++++++++++++++++++++++----
1 file changed, 653 insertions(+), 68 deletions(-)
--
2.30.2
