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.
changes v5:
[PATCH v5 2/7]:
- Calculate ps_it from ps_it_times by usinh NSEC_PER_USEC.
[PATCH v5 3/7]:
- Calculate als_it from ps_it_times by using NSEC_PER_USEC.
- Store scale step factor in chip_spec.
- Fixes sampling_rate to ns + 20 %.
[PATCH v5 3/7 - 7/7]
- Changed formatting.
- Changed some variable names.
- [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.
changes v5:
[PATCH v5 2/7]:
- Calculate ps_it from ps_it_times by usinh NSEC_PER_USEC.
[PATCH v5 3/7]:
- Calculate als_it from ps_it_times by using NSEC_PER_USEC.
- Store scale step factor in chip_spec.
- Fixes sampling_rate to ns + 20 %.
[PATCH v5 3/7 - 7/7]
- Changed formatting.
- Changed some variable names.
changes v6:
Added [PATCH v6 3/8]:
- Add switch case for IIO_PROXIMITY check.
[PATCH v5 1/7 - 7/7]
- Changed formatting.
[PATCH v5 3/7, 5/7, 6/7, 7/7]
- Changed loop.
- Changed some variable names.
Astrid Rost (8):
[PATCH v6 1/8] iio: light: vcnl4000: Add proximity irq for vcnl4200
[PATCH v6 2/8] iio: light: vcnl4000: Add proximity ps_it for vcnl4200
[PATCH v6 3/8] iio: light: vcnl4000: Check type with switch case
[PATCH v6 4/8] iio: light: vcnl4000: Add als_it for vcnl4040/4200
[PATCH v6 5/8] iio: light: vcnl4000: add illuminance irq vcnl4040/4200
[PATCH v6 6/8] iio: light: vcnl4000: Add period for vcnl4040/4200
[PATCH v6 7/8] iio: light: vcnl4000: Add oversampling_ratio for 4040/4200
[PATCH v6 8/8] iio: light: vcnl4000: Add calibration bias for 4040/4200
drivers/iio/light/vcnl4000.c | 710 +++++++++++++++++++++++++++++++----
1 file changed, 643 insertions(+), 67 deletions(-)
--
2.30.2
