Merge pull request #13411 from s-hadinger/twdt_to_tasmota

Move TWDT watchdog from esp-idf to Tasmota

tasmota/my_user_config.h

@@ -348,6 +348,7 @@
 #define ZIGBEE_DISTINCT_TOPICS false             // [SetOption89] Enable unique device topic based on Zigbee device ShortAddr
 #define ZIGBEE_RMV_ZBRECEIVED  false             // [SetOption100] Remove ZbReceived form JSON message
 #define ZIGBEE_INDEX_EP        false             // [SetOption101] Add the source endpoint as suffix to attributes, ex `Power3` instead of `Power` if sent from endpoint 3
+#define WATCHDOG_TASK_SECONDS  5                 // [ESP32 only] Task Watchdog Timer (TWDT) time in seconds - detecting Tasmota running for a prolonged period of time without yielding with `esp_task_wdt_reset()`
 
 /*********************************************************************************************\
  * END OF SECTION 1

tasmota/support.ino

@@ -66,6 +66,35 @@ void OsWatchTicker(void)
   }
 }
 
+#ifdef ESP32
+#include "esp_task_wdt.h"
+void TWDTInit(void) {
+  // enable Task Watchdog Timer
+  esp_task_wdt_init(WATCHDOG_TASK_SECONDS, true);
+  // if (ret != ESP_OK) { AddLog(LOG_LEVEL_ERROR, "HDW: cannot init Task WDT %i", ret); }
+  esp_task_wdt_add(nullptr);
+  // if (ret != ESP_OK) { AddLog(LOG_LEVEL_ERROR, "HDW: cannot start Task WDT %i", ret); }
+}
+
+void TWDTRestore(void) {
+  // restore default WDT values
+  esp_task_wdt_init(WATCHDOG_TASK_SECONDS, false);
+}
+
+void TWDTLoop(void) {
+  esp_task_wdt_reset();
+}
+
+// custom handler
+extern "C" {
+  void __attribute__((weak)) esp_task_wdt_isr_user_handler(void)
+  {
+    Serial.printf(">>>>>----------\n");
+  }
+
+}
+#endif
+
 void OsWatchInit(void)
 {
   oswatch_blocked_loop = RtcSettings.oswatch_blocked_loop;

tasmota/tasmota.ino

@@ -317,6 +317,9 @@ void setup(void) {
   SettingsLoad();
   SettingsDelta();
 
+#ifdef ESP32
+  TWDTInit();  // Start Task WDT for ESP32 - FreeRTOS only
+#endif
   OsWatchInit();
 
   TasmotaGlobal.seriallog_level = Settings->seriallog_level;
@@ -509,6 +512,9 @@ void Scheduler(void) {
 #endif  // USE_DISCOVERY
 #endif  // ESP8266
 
+#ifdef ESP32
+  TWDTLoop();
+#endif
   OsWatchLoop();
   ButtonLoop();
   SwitchLoop();

tasmota/xdrv_01_webserver.ino

@@ -2794,6 +2794,9 @@ void HandleUploadLoop(void) {
       Web.upload_error = 2;  // Not enough space
       return;
     }
+#ifdef ESP32
+    TWDTLoop();
+#endif
     if (upload.totalSize && !(upload.totalSize % 102400)) {
       AddLog(LOG_LEVEL_DEBUG, PSTR(D_LOG_UPLOAD "Progress %d kB"), upload.totalSize / 1024);
     }

tasmota/xdrv_52_3_berry_tasmota.ino

@@ -308,6 +308,7 @@ extern "C" {
   // ESP object
   int32_t l_yield(bvm *vm);
   int32_t l_yield(bvm *vm) {
+    TWDTLoop();   // reset watchdog
     BrTimeoutYield();   // reset timeout
     be_return_nil(vm);
   }
@@ -545,6 +546,8 @@ void berry_log(const char * berry_buf) {
     if (berry.log.log.length() >= BERRY_MAX_LOGS) {
       berry.log.log.remove(berry.log.log.head());
     }
+  } else {
+    TWDTLoop();   // if REPL, printing resets the WDT
   }
   // AddLog(LOG_LEVEL_INFO, PSTR("[Add to log] %s"), berry_buf);
   berry.log.addString(berry_buf, pre_delimiter, "\n");