Add functions to get I2C screen frequency and port

src/graphics/Screen.cpp

@@ -480,7 +480,8 @@ Screen::Screen(ScanI2C::DeviceAddress address, meshtastic_Config_DisplayConfig_O
 
 #if defined(USE_SH1106) || defined(USE_SH1107) || defined(USE_SH1107_128_64)
     dispdev = new SH1106Wire(address.address, -1, -1, geometry,
-                             (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE, SCREEN_I2C_FREQUENCY);
+                             (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE);
+    isI2cScreen = true;
 #elif defined(USE_ST7789)
 #ifdef ESP_PLATFORM
     dispdev = new ST7789Spi(&SPI1, ST7789_RESET, ST7789_RS, ST7789_NSS, GEOMETRY_RAWMODE, TFT_WIDTH, TFT_HEIGHT, ST7789_SDA,
@@ -496,9 +497,9 @@ Screen::Screen(ScanI2C::DeviceAddress address, meshtastic_Config_DisplayConfig_O
     dispdev = new ST7796Spi(&SPI1, ST7796_RESET, ST7796_RS, ST7796_NSS, GEOMETRY_RAWMODE, TFT_WIDTH, TFT_HEIGHT);
 #endif
 #elif defined(USE_SSD1306)
-    dispdev =
+    dispdev = new SSD1306Wire(address.address, -1, -1, geometry,
-        new SSD1306Wire(address.address, -1, -1, geometry,
+                              (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE);
-                        (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE, SCREEN_I2C_FREQUENCY);
+    isI2cScreen = true;
 #if defined(OLED_Y_OFFSET_PAGES)
     // Panels whose active window does not start at GDDRAM row 0 (e.g. 72x40
     // modules on pages 3..7) need a fixed vertical page shift on every write.
@@ -526,7 +527,8 @@ Screen::Screen(ScanI2C::DeviceAddress address, meshtastic_Config_DisplayConfig_O
     dispdev = new EInkParallelDisplay(EPD_WIDTH, EPD_HEIGHT, EInkParallelDisplay::EPD_ROT_PORTRAIT);
 #elif defined(USE_ST7567)
     dispdev = new ST7567Wire(address.address, -1, -1, geometry,
-                             (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE, SCREEN_I2C_FREQUENCY);
+                             (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE);
+    isI2cScreen = true;
 #elif ARCH_PORTDUINO
     if (config.display.displaymode != meshtastic_Config_DisplayConfig_DisplayMode_COLOR) {
         if (portduino_config.displayPanel != no_screen) {
@@ -535,16 +537,16 @@ Screen::Screen(ScanI2C::DeviceAddress address, meshtastic_Config_DisplayConfig_O
                                      (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE);
         } else {
             dispdev = new AutoOLEDWire(address.address, -1, -1, geometry,
-                                       (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE,
+                                       (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE);
-                                       SCREEN_I2C_FREQUENCY);
             isAUTOOled = true;
+            isI2cScreen = true;
         }
     }
 #else
-    dispdev =
+    dispdev = new AutoOLEDWire(address.address, -1, -1, geometry,
-        new AutoOLEDWire(address.address, -1, -1, geometry,
+                               (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE);
-                         (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE, SCREEN_I2C_FREQUENCY);
     isAUTOOled = true;
+    isI2cScreen = true;
 #endif
 
 #if defined(USE_ST7789)

src/graphics/Screen.h

@@ -9,10 +9,6 @@
 #include <string>
 #include <vector>
 
-#ifndef SCREEN_I2C_FREQUENCY
-#define SCREEN_I2C_FREQUENCY 700000
-#endif
-
 #define getStringCenteredX(s) ((SCREEN_WIDTH - display->getStringWidth(s)) / 2)
 namespace graphics
 {
@@ -77,6 +73,9 @@ class Screen
     void showOverlayBanner(BannerOverlayOptions) {}
     void setFrames(FrameFocus focus) {}
     void endAlert() {}
+    bool getIsI2CScreen() { return false; }
+    uint32_t getI2cFrequency() { return 0; }
+    ScanI2C::I2CPort getI2CPort() { return ScanI2C::I2CPort::NO_I2C; }
 };
 } // namespace graphics
 #else
@@ -264,6 +263,22 @@ class Screen : public concurrency::OSThread
     Screen &operator=(const Screen &) = delete;
 
     ScanI2C::DeviceAddress address_found;
+    bool getIsI2CScreen() { return isI2cScreen; }
+    // Return I2C Speed, or 0 if none
+    uint32_t getI2cFrequency()
+    {
+        if (getIsI2CScreen())
+            return dispdev->getI2cFrequency();
+        else
+            return 0;
+    }
+    ScanI2C::I2CPort getI2CPort()
+    {
+        if (getIsI2CScreen())
+            return address_found.port;
+        else
+            return ScanI2C::I2CPort::NO_I2C;
+    }
     meshtastic_Config_DisplayConfig_OledType model;
     OLEDDISPLAY_GEOMETRY geometry;
 
@@ -658,6 +673,7 @@ class Screen : public concurrency::OSThread
     int32_t runOnce() final;
 
     bool isAUTOOled = false;
+    bool isI2cScreen = false;
 
     // Screen dimensions (for convenience)
     // Defined during Screen::setup