Add is_system_pin

src/dev/device.h

@@ -77,6 +77,10 @@ class BaseDevice {
     {
         return 0;
     }
+    virtual bool is_system_pin(uint8_t pin)
+    {
+        return false;
+    }
 };
 
 } // namespace dev

src/dev/esp32/esp32.cpp

@@ -122,6 +122,16 @@ uint16_t Esp32Device::get_cpu_frequency()
     return ESP.getCpuFreqMHz();
 }
 
+bool Esp32Device::is_system_pin(uint8_t pin)
+{
+    if((pin >= 6) && (pin <= 11)) return true;  // integrated SPI flash
+    if((pin == 37) || (pin == 38)) return true; // unavailable
+    if(psramFound()) {
+        if((pin == 16) || (pin == 17)) return true; // PSRAM
+    }
+    return false;
+}
+
 } // namespace dev
 
 #if defined(LANBONL8)

src/dev/esp32/esp32.h

@@ -39,6 +39,8 @@ class Esp32Device : public BaseDevice {
     uint8_t get_heap_fragmentation() override;
     uint16_t get_cpu_frequency() override;
 
+    bool is_system_pin(uint8_t pin) override;
+
   private:
     std::string _hostname;
 

src/dev/esp8266/esp8266.cpp

@@ -109,6 +109,13 @@ uint16_t Esp8266Device::get_cpu_frequency()
     return ESP.getCpuFreqMHz();
 }
 
+bool Esp8266Device::is_system_pin(uint8_t pin)
+{
+    if((pin >= 6) && (pin <= 11)) return true;  // integrated SPI flash
+    if((pin >= 12) && (pin <= 14)) return true; // HSPI
+    return false;
+}
+
 } // namespace dev
 
 dev::Esp8266Device haspDevice;

src/dev/esp8266/esp8266.h

@@ -41,6 +41,8 @@ class Esp8266Device : public BaseDevice {
     uint8_t get_heap_fragmentation() override;
     uint16_t get_cpu_frequency() override;
 
+    bool is_system_pin(uint8_t pin) override;
+
   private:
     std::string _hostname;
 

src/dev/win32/hasp_win32.cpp

@@ -119,6 +119,11 @@ uint16_t Win32Device::get_cpu_frequency()
     return 0;
 }
 
+bool Win32Device::is_system_pin(uint8_t pin)
+{
+    return false;
+}
+
 } // namespace dev
 
 dev::Win32Device haspDevice;

src/dev/win32/hasp_win32.h

@@ -59,6 +59,8 @@ class Win32Device : public BaseDevice {
     uint8_t get_heap_fragmentation();
     uint16_t get_cpu_frequency();
 
+    bool is_system_pin(uint8_t pin) override;
+
   private:
     std::string _hostname;