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Use TAP_CODE_DELAY for encoder mapping by default (#18098)
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tzarc authored Aug 29, 2022
1 parent 7ef6c17 commit d910e8d
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14 changes: 11 additions & 3 deletions docs/feature_encoders.md
Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,14 @@ const uint16_t PROGMEM encoder_map[][NUM_ENCODERS][2] = {
#endif
```

Using encoder mapping pumps events through the normal QMK keycode processing pipeline, resulting in a _keydown/keyup_ combination pushed through `process_record_xxxxx()`. To configure the amount of time between the encoder "keyup" and "keydown", you can add the following to your `config.h`:

```c
#define ENCODER_MAP_KEY_DELAY 10
```
?> By default, the encoder map delay matches the value of `TAP_CODE_DELAY`.
## Callbacks
When not using `ENCODER_MAP_ENABLE = yes`, the callback functions can be inserted into your `<keyboard>.c`:
Expand Down Expand Up @@ -119,7 +127,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
}
```
!> If you return `true`, it will allow the keyboard level code to run as well. Returning `false` will override the keyboard level code, depending on how the keyboard function is set up.
!> If you return `true`, it will allow the keyboard level code to run as well. Returning `false` will override the keyboard level code, depending on how the keyboard function is set up.
Layer conditions can also be used with the callback function like the following:
Expand Down Expand Up @@ -172,7 +180,7 @@ The A an B lines of the encoders should be wired directly to the MCU, and the C/
Multiple encoders may share pins so long as each encoder has a distinct pair of pins when the following conditions are met:
- using detent encoders
- pads must be high at the detent stability point which is called 'default position' in QMK
- no more than two encoders sharing a pin can be turned at the same time
- no more than two encoders sharing a pin can be turned at the same time

For example you can support two encoders using only 3 pins like this
```
Expand All @@ -185,4 +193,4 @@ You could even support three encoders using only three pins (one per encoder) ho
#define ENCODERS_PAD_A { B1, B1, B2 }
#define ENCODERS_PAD_B { B2, B3, B3 }
```
Here rotating Encoder 0 `B1 B2` and Encoder 1 `B1 B3` could be interpreted as rotating Encoder 2 `B2 B3` or `B3 B2` depending on the timing. This may still be a useful configuration depending on your use case
Here rotating Encoder 0 `B1 B2` and Encoder 1 `B1 B3` could be interpreted as rotating Encoder 2 `B2 B3` or `B3 B2` depending on the timing. This may still be a useful configuration depending on your use case
8 changes: 7 additions & 1 deletion quantum/encoder.c
Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,8 @@
#include <string.h>

#ifndef ENCODER_MAP_KEY_DELAY
# define ENCODER_MAP_KEY_DELAY 2
# include "action.h"
# define ENCODER_MAP_KEY_DELAY TAP_CODE_DELAY
#endif

#if !defined(ENCODER_RESOLUTIONS) && !defined(ENCODER_RESOLUTION)
Expand Down Expand Up @@ -143,9 +144,14 @@ void encoder_init(void) {
static void encoder_exec_mapping(uint8_t index, bool clockwise) {
// The delays below cater for Windows and its wonderful requirements.
action_exec(clockwise ? ENCODER_CW_EVENT(index, true) : ENCODER_CCW_EVENT(index, true));
# if ENCODER_MAP_KEY_DELAY > 0
wait_ms(ENCODER_MAP_KEY_DELAY);
# endif // ENCODER_MAP_KEY_DELAY > 0

action_exec(clockwise ? ENCODER_CW_EVENT(index, false) : ENCODER_CCW_EVENT(index, false));
# if ENCODER_MAP_KEY_DELAY > 0
wait_ms(ENCODER_MAP_KEY_DELAY);
# endif // ENCODER_MAP_KEY_DELAY > 0
}
#endif // ENCODER_MAP_ENABLE

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