IDF release/v4.0 08219f3cf

tools/sdk/include/esp_common/esp_int_wdt.h

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+// Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef __ESP_INT_WDT_H
+#define __ESP_INT_WDT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** @addtogroup Watchdog_APIs
+  * @{
+  */
+
+/*
+This routine enables a watchdog to catch instances of processes disabling
+interrupts for too long, or code within interrupt handlers taking too long. 
+It does this by setting up a watchdog which gets fed from the FreeRTOS
+task switch interrupt. When this watchdog times out, initially it will call
+a high-level interrupt routine that will panic FreeRTOS in order to allow
+for forensic examination of the state of the both CPUs. When this interrupt
+handler is not called and the watchdog times out a second time, it will 
+reset the SoC.
+
+This uses the TIMERG1 WDT.
+*/
+
+
+/**
+  * @brief  Initialize the non-CPU-specific parts of interrupt watchdog.
+  *         This is called in the init code if the interrupt watchdog
+  *         is enabled in menuconfig.
+  *
+  */
+void esp_int_wdt_init();
+
+/**
+  * @brief  Enable the interrupt watchdog on the current CPU. This is called
+  *         in the init code by both CPUs if the interrupt watchdog is enabled
+  *         in menuconfig.
+  *
+  */
+void esp_int_wdt_cpu_init();
+
+
+
+/**
+  * @}
+  */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif