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Support "repeat" when a direction button is held down (#1053)

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* Support "repeat" when holding a direction button

* Support "repeat" when a direction button is held

* Support "repeat" when a direction button is held

* Support "repeat" when a direction button is held

* Formatting violation - removed a trailing space

* Removed unneeded return() statement
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Mark Thompson 2023-05-23 01:55:26 -05:00 • committed by GitHub
parent c2314f4838
commit 67b5b57533
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3 changed files with 47 additions and 0 deletions
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32
firmware/application/hw/debounce.cpp
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@ -27,11 +27,28 @@
bool Debounce::feed(const uint8_t bit) {
history_ = (history_ << 1) | (bit & 1);
// "Repeat" handling - simulated button release
if (repeat_ctr_) {
// Make sure the button is still being held continuously
if (history_ == 0xFF) {
// Simulate button press every REPEAT_SUBSEQUENT_DELAY ticks
if (--repeat_ctr_ == 0) {
state_ = !state_;
repeat_ctr_ = REPEAT_SUBSEQUENT_DELAY / 2;
return true;
}
} else {
// It's a real button release; stop simulating
repeat_ctr_ = 0;
}
}
if (state_ == 0) {
// Previous button state was 0 (released);
// Has button been held for DEBOUNCE_COUNT ticks?
if ((history_ & DEBOUNCE_MASK) == DEBOUNCE_MASK) {
state_ = 1;
held_time_ = 0;
return true;
}
} else {
@ -41,6 +58,21 @@ bool Debounce::feed(const uint8_t bit) {
state_ = 0;
return true;
}
// Repeat support is limited to the 4 directional buttons
if (repeat_enabled_) {
// Has button been held continuously for DEBOUNCE_REPEAT_DELAY?
if (history_ == 0xFF) {
if (++held_time_ == REPEAT_INITIAL_DELAY) {
// Delay reached; trigger repeat code on NEXT tick
repeat_ctr_ = 1;
held_time_ = 0;
}
} else {
// Button not continuously pressed; reset counter
held_time_ = 0;
}
}
}
return false;
}