Adjustable Serial Event Task Stack Size And Priority (#6685)

* Adjustable Serial Event Task Stack Size And Priority

* Added options to Kconfig

* Added Core Affinity

* Added CONFIG_FREERTOS_UNICORE

* Removed _CONFIG from FREERTOS_UNICORE

* Fixing Core choice for OnReceive() 

Makes it alligned to changes in #6718
Also eliminates conflict with #6718 for merging

Co-authored-by: Rodrigo Garcia <[email protected]>
Co-authored-by: Me No Dev <[email protected]>

Author: 3 people

Diff for: Kconfig.projbuild

@@ -73,6 +73,42 @@ config ARDUINO_EVENT_RUNNING_CORE
     default 1 if ARDUINO_EVENT_RUN_CORE1
     default -1 if ARDUINO_EVENT_RUN_NO_AFFINITY
 
+choice ARDUINO_SERIAL_EVENT_TASK_RUNNING_CORE
+    bool "Core on which Arduino's Serial Event task is running"
+    default ARDUINO_SERIAL_EVENT_RUN_CORE0 if FREERTOS_UNICORE
+    default ARDUINO_SERIAL_EVENT_RUN_NO_AFFINITY if !FREERTOS_UNICORE
+    help
+        Select on which core Arduino's Serial Event task run
+
+    config ARDUINO_SERIAL_EVENT_RUN_CORE0
+        bool "CORE 0"
+    config ARDUINO_SERIAL_EVENT_RUN_CORE1
+        bool "CORE 1"
+        depends on !FREERTOS_UNICORE
+    config ARDUINO_SERIAL_EVENT_RUN_NO_AFFINITY
+        bool "BOTH"
+        depends on !FREERTOS_UNICORE
+
+endchoice
+
+config ARDUINO_SERIAL_EVENT_TASK_RUNNING_CORE
+    int
+    default 0 if ARDUINO_SERIAL_EVENT_RUN_CORE0
+    default 1 if ARDUINO_SERIAL_EVENT_RUN_CORE1
+    default -1 if ARDUINO_SERIAL_EVENT_RUN_NO_AFFINITY
+
+config ARDUINO_SERIAL_EVENT_TASK_STACK_SIZE
+    int "Serial Event task stack size"
+    default 2048
+    help
+        Amount of stack available for the Serial Event task.
+
+config ARDUINO_SERIAL_EVENT_TASK_PRIORITY
+    int "Priority of the Serial Event task"
+    default 24
+    help
+        Select at what priority you want the Serial Event task to run.
+
 choice ARDUINO_UDP_RUNNING_CORE
     bool "Core on which Arduino's UDP is running"
     default ARDUINO_UDP_RUN_CORE0

Diff for: cores/esp32/HardwareSerial.cpp

@@ -9,6 +9,18 @@
 #include "driver/uart.h"
 #include "freertos/queue.h"
 
+#ifndef ARDUINO_SERIAL_EVENT_TASK_STACK_SIZE
+#define ARDUINO_SERIAL_EVENT_TASK_STACK_SIZE 2048
+#endif
+
+#ifndef ARDUINO_SERIAL_EVENT_TASK_PRIORITY
+#define ARDUINO_SERIAL_EVENT_TASK_PRIORITY (configMAX_PRIORITIES-1)
+#endif
+
+#ifndef ARDUINO_SERIAL_EVENT_TASK_RUNNING_CORE
+#define ARDUINO_SERIAL_EVENT_TASK_RUNNING_CORE -1
+#endif
+
 #ifndef SOC_RX0
 #if CONFIG_IDF_TARGET_ESP32
 #define SOC_RX0 3
@@ -159,7 +171,7 @@ HardwareSerial::~HardwareSerial()
 void HardwareSerial::_createEventTask(void *args)
 {
     // Creating UART event Task
-    xTaskCreate(_uartEventTask, "uart_event_task", 2048, this, configMAX_PRIORITIES - 1, &_eventTask);
+    xTaskCreateUniversal(_uartEventTask, "uart_event_task", ARDUINO_SERIAL_EVENT_TASK_STACK_SIZE, this, ARDUINO_SERIAL_EVENT_TASK_PRIORITY, &_eventTask, ARDUINO_SERIAL_EVENT_TASK_RUNNING_CORE);
     if (_eventTask == NULL) {
         log_e(" -- UART%d Event Task not Created!", _uart_nr);
     }