⏪️ Refactor still needs work

Reverting #23295

Marlin/src/HAL/LINUX/HAL.cpp

@@ -24,12 +24,6 @@
 #include "../../inc/MarlinConfig.h"
 #include "../shared/Delay.h"
 
-extern MarlinHAL hal;
-
-// ------------------------
-// Serial ports
-// ------------------------
-
 MSerialT usb_serial(TERN0(EMERGENCY_PARSER, true));
 
 // U8glib required functions
@@ -43,21 +37,42 @@ extern "C" {
 //************************//
 
 // return free heap space
-int freeMemory() { return 0; }
+int freeMemory() {
+  return 0;
+}
 
 // ------------------------
 // ADC
 // ------------------------
 
-uint8_t MarlinHAL::active_ch = 0;
+void HAL_adc_init() {
 
-uint16_t MarlinHAL::adc_value() {
-  const pin_t pin = analogInputToDigitalPin(active_ch);
+}
+
+void HAL_adc_enable_channel(const uint8_t ch) {
+
+}
+
+uint8_t active_ch = 0;
+void HAL_adc_start_conversion(const uint8_t ch) {
+  active_ch = ch;
+}
+
+bool HAL_adc_finished() {
+  return true;
+}
+
+uint16_t HAL_adc_get_result() {
+  pin_t pin = analogInputToDigitalPin(active_ch);
   if (!VALID_PIN(pin)) return 0;
-  const uint16_t data = ((Gpio::get(pin) >> 2) & 0x3FF);
+  uint16_t data = ((Gpio::get(pin) >> 2) & 0x3FF);
   return data;    // return 10bit value as Marlin expects
 }
 
-void MarlinHAL::reboot() { /* Reset the application state and GPIO */ }
+void HAL_pwm_init() {
+
+}
+
+void HAL_reboot() { /* Reset the application state and GPIO */ }
 
 #endif // __PLAT_LINUX__