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Prevent immediate deep-sleep wake by draining TCA8418 key FIFO before sleep #1

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Merged
TheCodingSoldier merged 2 commits into from
Aug 18, 2026
Merged

Prevent immediate deep-sleep wake by draining TCA8418 key FIFO before sleep #1

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76cf866
Initial plan
Copilot Aug 18, 2026
0984ce4
Drain keyboard FIFO before deep sleep on power-event sleep path
Copilot Aug 18, 2026
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10 changes: 10 additions & 0 deletions Code/PocketMageOS/src/UTILS.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -63,11 +63,16 @@ void checkTimeout() {
if (PWR_BTN_event && CurrentHOMEState != NOWLATER) {
PWR_BTN_event = false;
ESP_LOGE(TAG, "Power Button Event: Sleeping now");
// Fix #271: Clear pending key events so KB_IRQ can deassert before deep sleep.
while (KB().updateKeypress() != 0) {}
delay(50);
pocketmage::deepSleep();

} else if (PWR_BTN_event && CurrentHOMEState == NOWLATER) {
ESP_LOGE(TAG, "Power Button Event: powering off from NOWLATER");
PWR_BTN_event = false;
while (KB().updateKeypress() != 0) {}
delay(50);
pocketmage::deepSleep();
}
}
Expand Down Expand Up @@ -153,6 +158,9 @@ void checkTimeout() {

} else {
ESP_LOGD(TAG, "Not charging");
// Fix #271: Clear pending key events so KB_IRQ can deassert before deep sleep.
while (KB().updateKeypress() != 0) {}
delay(50);
switch (CurrentAppState) {
case TXT:
if (SLEEPMODE == "TEXT" && PM_SDAUTO().getEditingFile() != "") {
Expand Down Expand Up @@ -184,6 +192,8 @@ void checkTimeout() {
} else if (PWR_BTN_event && CurrentHOMEState == NOWLATER) {
ESP_LOGE(TAG, "Power Button Event: powering off from NOWLATER");
PWR_BTN_event = false;
while (KB().updateKeypress() != 0) {}
delay(50);
pocketmage::deepSleep();
}
}
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