prevent warnings

- move static variable from header to cpp
- remove unused variable
- change deprecated func name in ESP-IDF

Grbl_Esp32/servo_axis.cpp

@@ -26,6 +26,8 @@
 
 #ifdef USE_SERVO_AXES
 
+static TaskHandle_t servosSyncTaskHandle = 0;
+
 #ifdef SERVO_X_PIN
 	ServoAxis X_Servo_Axis(X_AXIS, SERVO_X_PIN, SERVO_X_CHANNEL_NUM);
 #endif
@@ -73,7 +75,6 @@ void servosSyncTask(void *pvParameters)
 { 
   TickType_t xLastWakeTime;
   const TickType_t xServoFrequency = SERVO_TIMER_INT_FREQ;  // in ticks (typically ms)
-  uint16_t servo_delay_counter = 0;
 
   xLastWakeTime = xTaskGetTickCount(); // Initialise the xLastWakeTime variable with the current time.
   while(true) { // don't ever return from this or the task dies
@@ -182,7 +183,7 @@ void ServoAxis::set_location()
   float servo_pulse_min, servo_pulse_max;
   float min_pulse_cal, max_pulse_cal; // calibration values in percent 110% = 1.1
   uint32_t servo_pulse_len;
-	float servo_pos, mpos, offset, wpos;
+	float servo_pos, mpos, offset;
 	
 	// skip location if we are in alarm mode
 	if (_disable_on_alarm && (sys.state == STATE_ALARM)) {

Grbl_Esp32/servo_axis.h

@@ -85,8 +85,6 @@
 #define SERVO_HOMING_OFF 0 // servo is off during homing
 #define SERVO_HOMING_TARGET 1 // servo is send to a location during homing
 
-static TaskHandle_t servosSyncTaskHandle = 0;
-
 extern float my_location;
 
 void init_servos();

Grbl_Esp32/solenoid_pen.cpp

@@ -114,9 +114,9 @@ void calc_solenoid(float penZ)
 	// update the PWM value
 	// ledcWrite appears to have issues with interrupts, so make this a critical section
 	portMUX_TYPE myMutex = portMUX_INITIALIZER_UNLOCKED;
-	taskENTER_CRITICAL(&myMutex);
+	portENTER_CRITICAL(&myMutex);
 			ledcWrite(SOLENOID_CHANNEL_NUM, solenoid_pen_pulse_len);		
-	taskEXIT_CRITICAL(&myMutex);	
+	portEXIT_CRITICAL(&myMutex);	
 }
 
 #endif