⏪️ Refactor still needs work

Reverting #23295

Marlin/src/HAL/LPC1768/HAL.cpp

@@ -31,7 +31,7 @@
 
 DefaultSerial1 USBSerial(false, UsbSerial);
 
-uint32_t MarlinHAL::adc_result = 0;
+uint32_t HAL_adc_reading = 0;
 
 // U8glib required functions
 extern "C" {
@@ -41,6 +41,8 @@ extern "C" {
   void u8g_Delay(uint16_t val)       { delay(val); }
 }
 
+//************************//
+
 // return free heap space
 int freeMemory() {
   char stack_end;
@@ -52,27 +54,7 @@ int freeMemory() {
   return result;
 }
 
-void MarlinHAL::reboot() { NVIC_SystemReset(); }
-
-uint8_t MarlinHAL::get_reset_source() {
-  #if ENABLED(USE_WATCHDOG)
-    if (watchdog_timed_out()) return RST_WATCHDOG;
-  #endif
-  return RST_POWER_ON;
-}
-
-void MarlinHAL::clear_reset_source() {
-  TERN_(USE_WATCHDOG, watchdog_clear_timeout_flag());
-}
-
-void flashFirmware(const int16_t) {
-  delay(500);          // Give OS time to disconnect
-  USB_Connect(false);  // USB clear connection
-  delay(1000);         // Give OS time to notice
-  hal.reboot();
-}
-
-// For M42/M43, scan command line for pin code
+// scan command line for code
 //   return index into pin map array if found and the pin is valid.
 //   return dval if not found or not a valid pin.
 int16_t PARSED_PIN_INDEX(const char code, const int16_t dval) {
@@ -81,4 +63,24 @@ int16_t PARSED_PIN_INDEX(const char code, const int16_t dval) {
   return ind > -1 ? ind : dval;
 }
 
+void flashFirmware(const int16_t) {
+  delay(500);          // Give OS time to disconnect
+  USB_Connect(false);  // USB clear connection
+  delay(1000);         // Give OS time to notice
+  HAL_reboot();
+}
+
+void HAL_clear_reset_source(void) {
+  TERN_(USE_WATCHDOG, watchdog_clear_timeout_flag());
+}
+
+uint8_t HAL_get_reset_source(void) {
+  #if ENABLED(USE_WATCHDOG)
+    if (watchdog_timed_out()) return RST_WATCHDOG;
+  #endif
+  return RST_POWER_ON;
+}
+
+void HAL_reboot() { NVIC_SystemReset(); }
+
 #endif // TARGET_LPC1768