From a8f8525bc0697376be2f754e3872df917d416a14 Mon Sep 17 00:00:00 2001
From: Xuan Son Nguyen <son@huggingface.co>
Date: Tue, 27 Jan 2026 17:01:20 +0100
Subject: [PATCH] move isWakeupByPowerButton to HAL

---
 lib/hal/HalGPIO.cpp | 10 ++++++++++
 lib/hal/HalGPIO.h   |  3 +++
 src/main.cpp        | 12 +-----------
 3 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/lib/hal/HalGPIO.cpp b/lib/hal/HalGPIO.cpp
index 6d2510a5..803efba0 100644
--- a/lib/hal/HalGPIO.cpp
+++ b/lib/hal/HalGPIO.cpp
@@ -43,3 +43,13 @@ bool HalGPIO::isUsbConnected() const {
   // U0RXD/GPIO20 reads HIGH when USB is connected
   return digitalRead(UART0_RXD) == HIGH;
 }
+
+bool HalGPIO::isWakeupByPowerButton() const {
+  const auto wakeupCause = esp_sleep_get_wakeup_cause();
+  const auto resetReason = esp_reset_reason();
+  if (isUsbConnected()) {
+    return wakeupCause == ESP_SLEEP_WAKEUP_GPIO;
+  } else {
+    return (wakeupCause == ESP_SLEEP_WAKEUP_UNDEFINED) && (resetReason == ESP_RST_POWERON);
+  }
+}
diff --git a/lib/hal/HalGPIO.h b/lib/hal/HalGPIO.h
index 83244f5b..11ffb22e 100644
--- a/lib/hal/HalGPIO.h
+++ b/lib/hal/HalGPIO.h
@@ -47,6 +47,9 @@ class HalGPIO {
   // Check if USB is connected
   bool isUsbConnected() const;
 
+  // Check if wakeup was caused by power button press
+  bool isWakeupByPowerButton() const;
+
   // Button indices
   static constexpr uint8_t BTN_BACK = 0;
   static constexpr uint8_t BTN_CONFIRM = 1;
diff --git a/src/main.cpp b/src/main.cpp
index 0637388b..2308f0a2 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -266,16 +266,6 @@ void setupDisplayAndFonts() {
   Serial.printf("[%lu] [   ] Fonts setup\n", millis());
 }
 
-bool isWakeupByPowerButton() {
-  const auto wakeupCause = esp_sleep_get_wakeup_cause();
-  const auto resetReason = esp_reset_reason();
-  if (gpio.isUsbConnected()) {
-    return wakeupCause == ESP_SLEEP_WAKEUP_GPIO;
-  } else {
-    return (wakeupCause == ESP_SLEEP_WAKEUP_UNDEFINED) && (resetReason == ESP_RST_POWERON);
-  }
-}
-
 void setup() {
   t1 = millis();
 
@@ -304,7 +294,7 @@ void setup() {
   SETTINGS.loadFromFile();
   KOREADER_STORE.loadFromFile();
 
-  if (isWakeupByPowerButton()) {
+  if (gpio.isWakeupByPowerButton()) {
     // For normal wakeups, verify power button press duration
     Serial.printf("[%lu] [   ] Verifying power button press duration\n", millis());
     verifyPowerButtonDuration();