Initial implementation of I2C

src/detect/ScanI2CTwoWire.cpp

@@ -2,7 +2,9 @@
 
 #include "concurrency/LockGuard.h"
 #include "configuration.h"
-
+#if defined(ARCH_RASPBERRY_PI)
+#include "linux/LinuxHardwareI2C.h"
+#endif
 #if !defined(ARCH_PORTDUINO) && !defined(ARCH_STM32WL)
 #include "main.h" // atecc
 #endif
@@ -162,7 +164,14 @@ void ScanI2CTwoWire::scanPort(I2CPort port)
 
     for (addr.address = 1; addr.address < 127; addr.address++) {
         i2cBus->beginTransmission(addr.address);
+#ifdef ARCH_PORTDUINO
+        if (i2cBus->read() != -1)
+            err = 0;
+        else
+            err = 2;
+#else
         err = i2cBus->endTransmission();
+#endif
         type = NONE;
         if (err == 0) {
             LOG_DEBUG("I2C device found at address 0x%x\n", addr.address);

src/graphics/Screen.cpp

@@ -1564,7 +1564,7 @@ void DebugInfo::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16
 // Jm
 void DebugInfo::drawFrameWiFi(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
 {
-#if HAS_WIFI
+#if HAS_WIFI && !defined(ARCH_RASPBERRY_PI)
     const char *wifiName = config.network.wifi_ssid;
 
     display->setFont(FONT_SMALL);

src/main.cpp

@@ -68,6 +68,7 @@ NRF52Bluetooth *nrf52Bluetooth;
 #endif
 
 #ifdef ARCH_RASPBERRY_PI
+#include "linux/LinuxHardwareI2C.h"
 #include "platform/portduino/PortduinoGlue.h"
 #include <fstream>
 #include <iostream>

src/platform/portduino/architecture.h

@@ -16,4 +16,4 @@
 #endif
 #ifndef HAS_TELEMETRY
 #define HAS_TELEMETRY 1
-#endif
+#endif

variants/portduino/variant.h

@@ -1,5 +1,6 @@
 #if defined(ARCH_RASPBERRY_PI)
-#define NO_SCREEN
+#define HAS_WIRE 1
+#define HAS_SCREEN 1
 
 #else // Pine64 mode.