Patches for CASE_LIGHT_USE_RGB_LED (#21811)

Co-authored-by: Scott Lahteine <github@thinkyhead.com>

Marlin/src/feature/caselight.cpp

 
 CaseLight caselight;
 
-#if CASE_LIGHT_IS_COLOR_LED
-  #include "leds/leds.h"
-#endif
-
 #if CASELIGHT_USES_BRIGHTNESS && !defined(CASE_LIGHT_DEFAULT_BRIGHTNESS)
   #define CASE_LIGHT_DEFAULT_BRIGHTNESS 0 // For use on PWM pin as non-PWM just sets a default
 #endif
 bool CaseLight::on = CASE_LIGHT_DEFAULT_ON;
 
 #if CASE_LIGHT_IS_COLOR_LED
-  LEDColor CaseLight::color =
-    #ifdef CASE_LIGHT_DEFAULT_COLOR
-      CASE_LIGHT_DEFAULT_COLOR
-    #else
-      { 255, 255, 255, 255 }
-    #endif
-  ;
+  #include "leds/leds.h"
+  constexpr uint8_t init_case_light[] = CASE_LIGHT_DEFAULT_COLOR;
+  LEDColor CaseLight::color = { init_case_light[0], init_case_light[1], init_case_light[2], TERN_(HAS_WHITE_LED, init_case_light[3]) };
 #endif
 
 #ifndef INVERT_CASE_LIGHT
       brightness = brightness_sav;  // Restore last brightness for M355 S1
 
     const uint8_t i = on ? brightness : 0, n10ct = INVERT_CASE_LIGHT ? 255 - i : i;
+    UNUSED(n10ct);
   #endif
 
   #if CASE_LIGHT_IS_COLOR_LED
 
-    leds.set_color(
-      MakeLEDColor(color.r, color.g, color.b, color.w, n10ct),
-      false
-    );
+    leds.set_color(MakeLEDColor(color.r, color.g, color.b, color.w, n10ct));
 
   #else // !CASE_LIGHT_IS_COLOR_LED
 

Marlin/src/feature/caselight.h

   #include "leds/leds.h" // for LEDColor
 #endif
 
-#if DISABLED(CASE_LIGHT_NO_BRIGHTNESS) || ENABLED(CASE_LIGHT_USE_NEOPIXEL)
+#if NONE(CASE_LIGHT_NO_BRIGHTNESS, CASE_LIGHT_IS_COLOR_LED) || ENABLED(CASE_LIGHT_USE_NEOPIXEL)
   #define CASELIGHT_USES_BRIGHTNESS 1
 #endif
 

Marlin/src/feature/leds/leds.cpp

   );
 #endif
 
-#if EITHER(LED_CONTROL_MENU, PRINTER_EVENT_LEDS)
+#if ANY(LED_CONTROL_MENU, PRINTER_EVENT_LEDS, CASE_LIGHT_IS_COLOR_LED)
   LEDColor LEDLights::color;
   bool LEDLights::lights_on;
 #endif

Marlin/src/feature/leds/leds.h

     static inline LEDColor get_color() { return lights_on ? color : LEDColorOff(); }
   #endif
 
-  #if EITHER(LED_CONTROL_MENU, PRINTER_EVENT_LEDS)
+  #if ANY(LED_CONTROL_MENU, PRINTER_EVENT_LEDS, CASE_LIGHT_IS_COLOR_LED)
     static LEDColor color; // last non-off color
     static bool lights_on; // the last set color was "on"
   #endif

Marlin/src/gcode/feature/caselight/M355.cpp

     SERIAL_ECHOLNPGM(STR_OFF);
   else {
     #if CASELIGHT_USES_BRIGHTNESS
-      if (TERN(CASE_LIGHT_USE_NEOPIXEL, true, PWM_PIN(CASE_LIGHT_PIN))) {
+      if (TERN(CASE_LIGHT_USE_NEOPIXEL, true, TERN0(NEED_CASE_LIGHT_PIN, PWM_PIN(CASE_LIGHT_PIN)))) {
         SERIAL_ECHOLN(int(caselight.brightness));
         return;
       }