Allow for removal of hysteresis on 4x encoders (#13698)

* Remove hysteresis on 4x encoders

Sometimes, controller skips encoder pulses and when it returns to default position, the encoder_pulses variable isn't equals 0. And when I turn encoder in opposite direciton, it skips first click becase of encoder_pulses crosses zero. To prevent this, I add the ENCODER_DEFAULT_POS constant, and reset encoder_pulses into 0 when the state variable equals ENCODER_DEFAULT_POS.

* Documentation for ENCODER_DEFAULT_POS
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tucvbif 2021-08-18 02:40:00 +03:00 committed by GitHub
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commit 703f027717
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@ -38,6 +38,12 @@ It can also be defined per-encoder, by instead defining:
#define ENCODER_RESOLUTIONS { 4, 2 }
```
For 4× encoders you also can assign default position if encoder skips pulses when it changes direction. For example, if your encoder send high level on both pins by default, define this:
```c
#define ENCODER_DEFAULT_POS 0x3
```
## Split Keyboards
If you are using different pinouts for the encoders on each half of a split keyboard, you can define the pinout (and optionally, resolutions) for the right half like this:

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@ -119,6 +119,11 @@ static bool encoder_update(uint8_t index, uint8_t state) {
encoder_update_kb(index, ENCODER_CLOCKWISE);
}
encoder_pulses[i] %= resolution;
#ifdef ENCODER_DEFAULT_POS
if ((state & 0x3) == ENCODER_DEFAULT_POS) {
encoder_pulses[i] = 0;
}
#endif
return changed;
}