preliminary Othernet Dreamcatcher Support (#4933)

* preliminary Othernet Dreamcatcher 2206 Support
Need to adapt to 2301 final version

* second target for latest revision

* preliminary Othernet Dreamcatcher 2206 Support
Need to adapt to 2301 final version

* second target for latest revision

* preliminary Othernet Dreamcatcher 2206 Support
Need to adapt to 2301 final version

* second target for latest revision

* address comments

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: Tom Fifield <tom@tomfifield.net>

src/configuration.h

@@ -187,6 +187,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // -----------------------------------------------------------------------------
 #define FT6336U_ADDR 0x48
 
+// -----------------------------------------------------------------------------
+// BIAS-T Generator
+// -----------------------------------------------------------------------------
+#define TPS65233_ADDR 0x60
+
 // convert 24-bit color to 16-bit (56K)
 #define COLOR565(r, g, b) (((r & 0xF8) << 8) | ((g & 0xFC) << 3) | ((b & 0xF8) >> 3))
 

src/detect/ScanI2C.h

@@ -60,7 +60,8 @@ class ScanI2C
         FT6336U,
         STK8BAXX,
         ICM20948,
-        MAX30102
+        MAX30102,
+        TPS65233
     } DeviceType;
 
     // typedef uint8_t DeviceAddress;

src/detect/ScanI2CTwoWire.cpp

@@ -405,6 +405,9 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                 SCAN_SIMPLE_CASE(NAU7802_ADDR, NAU7802, "NAU7802 based scale found\n");
                 SCAN_SIMPLE_CASE(FT6336U_ADDR, FT6336U, "FT6336U touchscreen found\n");
                 SCAN_SIMPLE_CASE(MAX1704X_ADDR, MAX17048, "MAX17048 lipo fuel gauge found\n");
+#ifdef HAS_TPS65233
+                SCAN_SIMPLE_CASE(TPS65233_ADDR, TPS65233, "TPS65233 BIAS-T found\n");
+#endif
                 SCAN_SIMPLE_CASE(MLX90614_ADDR_DEF, MLX90614, "MLX90614 IR temp sensor found\n");
 
             case ICM20948_ADDR:     // same as BMX160_ADDR

src/main.cpp

@@ -298,6 +298,11 @@ void setup()
     digitalWrite(VEXT_ENABLE, VEXT_ON_VALUE); // turn on the display power
 #endif
 
+#if defined(BIAS_T_ENABLE)
+    pinMode(BIAS_T_ENABLE, OUTPUT);
+    digitalWrite(BIAS_T_ENABLE, BIAS_T_VALUE); // turn on 5V for GPS Antenna
+#endif
+
 #if defined(VTFT_CTRL)
     pinMode(VTFT_CTRL, OUTPUT);
     digitalWrite(VTFT_CTRL, LOW);
@@ -538,6 +543,21 @@ void setup()
     rgb_found = i2cScanner->find(ScanI2C::DeviceType::NCP5623);
 #endif
 
+#ifdef HAS_TPS65233
+    // TPS65233 is a power management IC for satellite modems, used in the Dreamcatcher
+    // We are switching it off here since we don't use an LNB.
+    if (i2cScanner->exists(ScanI2C::DeviceType::TPS65233)) {
+        Wire.beginTransmission(TPS65233_ADDR);
+        Wire.write(0);   // Register 0
+        Wire.write(128); // Turn off the LNB power, keep I2C Control enabled
+        Wire.endTransmission();
+        Wire.beginTransmission(TPS65233_ADDR);
+        Wire.write(1); // Register 1
+        Wire.write(0); // Turn off Tone Generator 22kHz
+        Wire.endTransmission();
+    }
+#endif
+
 #if !defined(ARCH_PORTDUINO) && !defined(ARCH_STM32WL)
     auto acc_info = i2cScanner->firstAccelerometer();
     accelerometer_found = acc_info.type != ScanI2C::DeviceType::NONE ? acc_info.address : accelerometer_found;

src/mesh/LR11x0Interface.cpp

@@ -72,6 +72,18 @@ template <typename T> bool LR11x0Interface<T>::init()
 
     limitPower();
 
+#ifdef LR11X0_RF_SWITCH_SUBGHZ
+    pinMode(LR11X0_RF_SWITCH_SUBGHZ, OUTPUT);
+    digitalWrite(LR11X0_RF_SWITCH_SUBGHZ, getFreq() < 1e9 ? HIGH : LOW);
+    LOG_DEBUG("Setting RF0 switch to %s\n", getFreq() < 1e9 ? "SubGHz" : "2.4GHz");
+#endif
+
+#ifdef LR11X0_RF_SWITCH_2_4GHZ
+    pinMode(LR11X0_RF_SWITCH_2_4GHZ, OUTPUT);
+    digitalWrite(LR11X0_RF_SWITCH_2_4GHZ, getFreq() < 1e9 ? LOW : HIGH);
+    LOG_DEBUG("Setting RF1 switch to %s\n", getFreq() < 1e9 ? "SubGHz" : "2.4GHz");
+#endif
+
     int res = lora.begin(getFreq(), bw, sf, cr, syncWord, power, preambleLength, tcxoVoltage);
     // \todo Display actual typename of the adapter, not just `LR11x0`
     LOG_INFO("LR11x0 init result %d\n", res);