From 000e1d3a6d92c372edfda7dfff2e320d45400e13 Mon Sep 17 00:00:00 2001
From: richardclli <richard.li@ces.hk>
Date: Thu, 18 Jun 2026 08:05:10 +0800
Subject: [PATCH] fix(pl18): add timeout to isChargerActive() to prevent hang
 (#7468)

---
 radio/src/targets/pl18/battery_driver.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/radio/src/targets/pl18/battery_driver.cpp b/radio/src/targets/pl18/battery_driver.cpp
index bdd4688b9..9b5928d03 100644
--- a/radio/src/targets/pl18/battery_driver.cpp
+++ b/radio/src/targets/pl18/battery_driver.cpp
@@ -61,6 +61,7 @@
 #endif
 #define WCHARGER_LOW_CURRENT_DELAY_CNT       6000
 #define WCHARGER_HIGH_CURRENT_DELAY_CNT      24000
+#define CHARGER_DETECTION_TIMEOUT            40    // 400ms
 
 typedef struct
 {
@@ -298,14 +299,16 @@ uint16_t get_battery_charge_state()
 bool isChargerActive()
 {  
 #if defined(WIRELESS_CHARGER)
-  while (!(uCharger.isChargerDetectionReady && wCharger.isChargerDetectionReady))
+  uint16_t timeout = CHARGER_DETECTION_TIMEOUT;
+  while (!(uCharger.isChargerDetectionReady && wCharger.isChargerDetectionReady) && timeout--)
   {
     get_battery_charge_state();
     delay_ms(10);
   }
   return uCharger.hasCharger || wCharger.hasCharger;
 #else
-  while (!uCharger.isChargerDetectionReady)
+  uint16_t timeout = CHARGER_DETECTION_TIMEOUT;
+  while (!uCharger.isChargerDetectionReady && timeout--)
   {
     get_battery_charge_state();
     delay_ms(10);