97 lines
3.9 KiB
C++
97 lines
3.9 KiB
C++
#include "buttons.h"
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#ifdef FEATURE_PHYSICAL_BUTTONS
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#include <bluefruit.h>
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extern BLEHidAdafruit blehid;
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extern Config cfg;
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static uint8_t physBtnMask = 0;
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static uint8_t rawMaskPrev = 0;
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static unsigned long debounceMs = 0;
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static const unsigned long DEBOUNCE_MS = 20;
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// Double-press detection for left button
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static const unsigned long DOUBLE_PRESS_MS = 400; // max gap between two releases
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static const unsigned long KEY_HOLD_MS = 60; // how long to hold the key down
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static unsigned long lastLeftReleaseMs = 0;
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static unsigned long keyDownUntil = 0;
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// Setup
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void setupPhysicalButtons() {
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// Release any held physical buttons before reconfiguring
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if (physBtnMask && Bluefruit.connected()) { blehid.mouseButtonRelease(); }
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physBtnMask = 0;
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if (BTN_LEFT_PIN != BTN_PIN_NONE) pinMode(BTN_LEFT_PIN, INPUT_PULLUP);
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if (BTN_RIGHT_PIN != BTN_PIN_NONE) pinMode(BTN_RIGHT_PIN, INPUT_PULLUP);
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if (BTN_MIDDLE_PIN != BTN_PIN_NONE) pinMode(BTN_MIDDLE_PIN, INPUT_PULLUP);
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bool any = (BTN_LEFT_PIN != BTN_PIN_NONE) || (BTN_RIGHT_PIN != BTN_PIN_NONE)
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|| (BTN_MIDDLE_PIN != BTN_PIN_NONE);
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if (any) {
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Serial.print("[BTN] L=");
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BTN_LEFT_PIN == BTN_PIN_NONE ? Serial.print("--") : Serial.print(BTN_LEFT_PIN);
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Serial.print(" R=");
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BTN_RIGHT_PIN == BTN_PIN_NONE ? Serial.print("--") : Serial.print(BTN_RIGHT_PIN);
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Serial.print(" M=");
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BTN_MIDDLE_PIN == BTN_PIN_NONE ? Serial.print("--") : Serial.print(BTN_MIDDLE_PIN);
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Serial.println();
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}
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}
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// Poll and report
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// Called every loop iteration (before rate limiter) for immediate response.
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// Uses active-low logic: INPUT_PULLUP, button connects pin to GND.
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void processPhysicalButtons() {
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if (!Bluefruit.connected()) return;
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unsigned long now = millis();
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// Release held key combo after KEY_HOLD_MS
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if (keyDownUntil && now >= keyDownUntil) {
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uint8_t noKeys[6] = {};
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blehid.keyboardReport(0, noKeys);
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keyDownUntil = 0;
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Serial.println("[BTN] key release");
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}
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uint8_t rawMask = 0;
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if (BTN_LEFT_PIN != BTN_PIN_NONE && digitalRead(BTN_LEFT_PIN) == LOW) rawMask |= MOUSE_BUTTON_LEFT;
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if (BTN_RIGHT_PIN != BTN_PIN_NONE && digitalRead(BTN_RIGHT_PIN) == LOW) rawMask |= MOUSE_BUTTON_RIGHT;
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if (BTN_MIDDLE_PIN != BTN_PIN_NONE && digitalRead(BTN_MIDDLE_PIN) == LOW) rawMask |= MOUSE_BUTTON_MIDDLE;
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if (rawMask != rawMaskPrev) { rawMaskPrev = rawMask; debounceMs = now; }
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if (rawMask != physBtnMask && (now - debounceMs >= DEBOUNCE_MS)) {
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uint8_t newMask = rawMask;
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uint8_t pressed = newMask & ~physBtnMask;
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uint8_t released = physBtnMask & ~newMask;
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physBtnMask = newMask;
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if (physBtnMask) blehid.mouseButtonPress(physBtnMask);
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else blehid.mouseButtonRelease();
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if (pressed & MOUSE_BUTTON_LEFT) Serial.println("[BTN] L press");
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if (pressed & MOUSE_BUTTON_RIGHT) Serial.println("[BTN] R press");
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if (pressed & MOUSE_BUTTON_MIDDLE) Serial.println("[BTN] M press");
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if (released & MOUSE_BUTTON_LEFT) {
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unsigned long gap = lastLeftReleaseMs ? (now - lastLeftReleaseMs) : 0;
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Serial.print("[BTN] L release - gap="); Serial.print(gap);
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Serial.print("ms (max="); Serial.print(DOUBLE_PRESS_MS); Serial.println("ms)");
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// Double-press detection: two short presses → fire key combo
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if (lastLeftReleaseMs && (gap <= DOUBLE_PRESS_MS)) {
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uint8_t keys[6] = {cfg.tapKey, 0, 0, 0, 0, 0};
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blehid.keyboardReport(cfg.tapMod, keys);
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keyDownUntil = now + KEY_HOLD_MS;
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lastLeftReleaseMs = 0;
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Serial.print("[BTN] Double-press → key 0x"); Serial.print(cfg.tapKey, HEX);
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Serial.print(" mod 0x"); Serial.println(cfg.tapMod, HEX);
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} else {
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lastLeftReleaseMs = now;
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}
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}
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if (released & MOUSE_BUTTON_RIGHT) Serial.println("[BTN] R release");
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if (released & MOUSE_BUTTON_MIDDLE) Serial.println("[BTN] M release");
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}
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}
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#endif // FEATURE_PHYSICAL_BUTTONS
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