HIGH/LOW naming of pin state settings (#19089)

Marlin/Configuration.h

 //#define PSU_NAME "Power Supply"
 
 #if ENABLED(PSU_CONTROL)
-  #define PSU_ACTIVE_HIGH false     // Set 'false' for ATX, 'true' for X-Box
+  #define PSU_ACTIVE_STATE LOW      // Set 'LOW' for ATX, 'HIGH' for X-Box
 
   //#define PSU_DEFAULT_OFF         // Keep power off until enabled directly with M80
   //#define PSU_POWERUP_DELAY 250   // (ms) Delay for the PSU to warm up to full power

Marlin/Configuration_adv.h

 //#define SPINDLE_FEATURE
 //#define LASER_FEATURE
 #if EITHER(SPINDLE_FEATURE, LASER_FEATURE)
-  #define SPINDLE_LASER_ACTIVE_HIGH     false  // Set to "true" if the on/off function is active HIGH
+  #define SPINDLE_LASER_ACTIVE_STATE    LOW    // Set to "HIGH" if the on/off function is active HIGH
   #define SPINDLE_LASER_PWM             true   // Set to "true" if your controller supports setting the speed/power
   #define SPINDLE_LASER_PWM_INVERT      false  // Set to "true" if the speed/power goes up when you want it to go slower
 

Marlin/src/HAL/DUE/usb/arduino_due_x.h

 #define USB_VBOF_GPIO               (PIO_PB10_IDX)
 #define USB_VBOF_FLAGS              (PIO_PERIPH_A | PIO_DEFAULT)
 /*! Active level of the USB_VBOF output pin. */
-#define USB_VBOF_ACTIVE_LEVEL       LOW
+#define USB_VBOF_ACTIVE_STATE       LOW
 /* ------------------------------------------------------------------------ */

Marlin/src/MarlinCore.h

 
 #if ENABLED(PSU_CONTROL)
   extern bool powersupply_on;
-  #define PSU_PIN_ON()  do{ OUT_WRITE(PS_ON_PIN,  PSU_ACTIVE_HIGH); powersupply_on = true; }while(0)
-  #define PSU_PIN_OFF() do{ OUT_WRITE(PS_ON_PIN, !PSU_ACTIVE_HIGH); powersupply_on = false; }while(0)
+  #define PSU_PIN_ON()  do{ OUT_WRITE(PS_ON_PIN,  PSU_ACTIVE_STATE); powersupply_on = true;  }while(0)
+  #define PSU_PIN_OFF() do{ OUT_WRITE(PS_ON_PIN, !PSU_ACTIVE_STATE); powersupply_on = false; }while(0)
   #if ENABLED(AUTO_POWER_CONTROL)
     #define PSU_ON()  powerManager.power_on()
     #define PSU_OFF() powerManager.power_off()

Marlin/src/feature/spindle_laser.cpp

                SpindleLaser::unitPower;                               // LCD status power in PWM, PERCENT, or RPM
 
 #if ENABLED(MARLIN_DEV_MODE)
-  cutter_frequency_t SpindleLaser::frequency;                         // setting PWM frequency; range: 2K - 50K
+  cutter_frequency_t SpindleLaser::frequency;                         // PWM frequency setting; range: 2K - 50K
 #endif
 #define SPINDLE_LASER_PWM_OFF ((SPINDLE_LASER_PWM_INVERT) ? 255 : 0)
 
 // Init the cutter to a safe OFF state
 //
 void SpindleLaser::init() {
-  OUT_WRITE(SPINDLE_LASER_ENA_PIN, !SPINDLE_LASER_ACTIVE_HIGH);       // Init spindle to off
+  OUT_WRITE(SPINDLE_LASER_ENA_PIN, !SPINDLE_LASER_ACTIVE_STATE);      // Init spindle to off
   #if ENABLED(SPINDLE_CHANGE_DIR)
     OUT_WRITE(SPINDLE_DIR_PIN, SPINDLE_INVERT_DIR ? 255 : 0);         // Init rotation to clockwise (M3)
   #endif
   #if ENABLED(SPINDLE_LASER_PWM)
     SET_PWM(SPINDLE_LASER_PWM_PIN);
-    analogWrite(pin_t(SPINDLE_LASER_PWM_PIN), SPINDLE_LASER_PWM_OFF); // set to lowest speed
+    analogWrite(pin_t(SPINDLE_LASER_PWM_PIN), SPINDLE_LASER_PWM_OFF); // Set to lowest speed
   #endif
   #if ENABLED(HAL_CAN_SET_PWM_FREQ) && defined(SPINDLE_LASER_FREQUENCY)
     set_pwm_frequency(pin_t(SPINDLE_LASER_PWM_PIN), SPINDLE_LASER_FREQUENCY);
    * Set the cutter PWM directly to the given ocr value
    */
   void SpindleLaser::set_ocr(const uint8_t ocr) {
-    WRITE(SPINDLE_LASER_ENA_PIN, SPINDLE_LASER_ACTIVE_HIGH);        // turn spindle on
+    WRITE(SPINDLE_LASER_ENA_PIN, SPINDLE_LASER_ACTIVE_STATE);         // Turn spindle on
     analogWrite(pin_t(SPINDLE_LASER_PWM_PIN), ocr ^ SPINDLE_LASER_PWM_OFF);
     #if NEEDS_HARDWARE_PWM && SPINDLE_LASER_FREQUENCY
       set_pwm_duty(pin_t(SPINDLE_LASER_PWM_PIN), ocr ^ SPINDLE_LASER_PWM_OFF);
     #endif
   }
   void SpindleLaser::ocr_off() {
-    WRITE(SPINDLE_LASER_ENA_PIN, !SPINDLE_LASER_ACTIVE_HIGH);       // Turn spindle off
+    WRITE(SPINDLE_LASER_ENA_PIN, !SPINDLE_LASER_ACTIVE_STATE);        // Turn spindle off
     analogWrite(pin_t(SPINDLE_LASER_PWM_PIN), SPINDLE_LASER_PWM_OFF); // Only write low byte
   }
 #endif
       isReady = false;
     }
   #else
-    WRITE(SPINDLE_LASER_ENA_PIN, enabled() == SPINDLE_LASER_ACTIVE_HIGH);
+    WRITE(SPINDLE_LASER_ENA_PIN, enabled() ? SPINDLE_LASER_ACTIVE_STATE : !SPINDLE_LASER_ACTIVE_STATE);
     isReady = true;
   #endif
 }

Marlin/src/inc/Conditionals_post.h

 #ifndef PSU_NAME
   #if DISABLED(PSU_CONTROL)
     #define PSU_NAME "Generic"  // No control
-  #elif PSU_ACTIVE_HIGH
+  #elif PSU_ACTIVE_STATE
     #define PSU_NAME "XBox"     // X-Box 360 (203W)
   #else
     #define PSU_NAME "ATX"      // ATX style

Marlin/src/inc/SanityCheck.h

   #error "SPINDLE_DIR_CHANGE is now SPINDLE_CHANGE_DIR. Please update your Configuration_adv.h."
 #elif defined(SPINDLE_STOP_ON_DIR_CHANGE)
   #error "SPINDLE_STOP_ON_DIR_CHANGE is now SPINDLE_CHANGE_DIR_STOP. Please update your Configuration_adv.h."
+#elif defined(SPINDLE_LASER_ACTIVE_HIGH)
+  #error "SPINDLE_LASER_ACTIVE_HIGH is now SPINDLE_LASER_ACTIVE_STATE. Please update your Configuration_adv.h."
 #elif defined(SPINDLE_LASER_ENABLE_INVERT)
-  #error "SPINDLE_LASER_ENABLE_INVERT is now SPINDLE_LASER_ACTIVE_HIGH. Please update your Configuration_adv.h."
+  #error "SPINDLE_LASER_ENABLE_INVERT is now SPINDLE_LASER_ACTIVE_STATE. Please update your Configuration_adv.h."
 #elif defined(CUTTER_POWER_DISPLAY)
   #error "CUTTER_POWER_DISPLAY is now CUTTER_POWER_UNIT. Please update your Configuration_adv.h."
 #elif defined(CHAMBER_HEATER_PIN)
   #error "USB_SD_DISABLED is now NO_SD_HOST_DRIVE. Please update your Configuration_adv.h."
 #elif defined(USB_SD_ONBOARD)
   #error "USB_SD_ONBOARD is obsolete. Disable NO_SD_HOST_DRIVE instead."
+#elif defined(PSU_ACTIVE_HIGH)
+  #error "PSU_ACTIVE_HIGH is now PSU_ACTIVE_STATE. Please update your configuration."
 #elif POWER_SUPPLY == 1
-  #error "Replace POWER_SUPPLY 1 by enabling PSU_CONTROL and setting PSU_ACTIVE_HIGH to 'false'."
+  #error "Replace POWER_SUPPLY 1 by enabling PSU_CONTROL and setting PSU_ACTIVE_STATE to 'LOW'."
 #elif POWER_SUPPLY == 2
-  #error "Replace POWER_SUPPLY 2 by enabling PSU_CONTROL and setting PSU_ACTIVE_HIGH to 'true'."
+  #error "Replace POWER_SUPPLY 2 by enabling PSU_CONTROL and setting PSU_ACTIVE_STATE to 'HIGH'."
 #elif defined(POWER_SUPPLY)
   #error "POWER_SUPPLY is now obsolete. Please remove it from Configuration.h."
 #elif defined(MKS_ROBIN_TFT)
  * Ensure this option is set intentionally
  */
 #if ENABLED(PSU_CONTROL)
-  #ifndef PSU_ACTIVE_HIGH
-    #error "PSU_CONTROL requires PSU_ACTIVE_HIGH to be defined as 'true' or 'false'."
+  #ifndef PSU_ACTIVE_STATE
+    #error "PSU_CONTROL requires PSU_ACTIVE_STATE to be defined as 'HIGH' or 'LOW'."
   #elif !PIN_EXISTS(PS_ON)
     #error "PSU_CONTROL requires PS_ON_PIN."
   #endif