preliminary Othernet Dreamcatcher Support

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);

variants/dreamcatcher/platformio.ini

@@ -0,0 +1,27 @@
+[env:dreamcatcher] ; 2301, latest revision
+extends = esp32s3_base
+board = esp32s3box
+board_level = extra
+
+build_flags = 
+  ${esp32s3_base.build_flags}
+  -D PRIVATE_HW
+  -D OTHERNET_DC_REV=2301
+  -I variants/dreamcatcher
+  -DARDUINO_USB_CDC_ON_BOOT=1
+
+lib_deps = ${esp32s3_base.lib_deps}
+  earlephilhower/ESP8266Audio@^1.9.7
+  earlephilhower/ESP8266SAM@^1.0.1
+
+[env:dreamcatcher-2206] 
+extends = esp32s3_base
+board = esp32s3box
+board_level = extra
+
+build_flags = 
+  ${esp32s3_base.build_flags}
+  -D PRIVATE_HW
+  -D OTHERNET_DC_REV=2206
+  -I variants/dreamcatcher
+  -DARDUINO_USB_CDC_ON_BOOT=1

variants/dreamcatcher/rfswitch.h

@@ -0,0 +1,17 @@
+#include "RadioLib.h"
+
+// RF Switch Matrix SubG RFO_HP_LF / RFO_LP_LF / RFI_[NP]_LF0
+// DIO5 -> RFSW0_V1
+// DIO6 -> RFSW1_V2
+// DIO7 -> ANT_CTRL_ON + ESP_IO9/LR_GPS_ANT_DC_EN -> RFI_GPS (Bias-T GPS)
+
+static const uint32_t rfswitch_dio_pins[] = {RADIOLIB_LR11X0_DIO5, RADIOLIB_LR11X0_DIO6, RADIOLIB_LR11X0_DIO7, RADIOLIB_NC,
+                                             RADIOLIB_NC};
+
+static const Module::RfSwitchMode_t rfswitch_table[] = {
+    // mode                  DIO5  DIO6  DIO7
+    {LR11x0::MODE_STBY, {LOW, LOW, LOW}},  {LR11x0::MODE_RX, {HIGH, LOW, LOW}},
+    {LR11x0::MODE_TX, {LOW, HIGH, LOW}},   {LR11x0::MODE_TX_HP, {LOW, HIGH, LOW}},
+    {LR11x0::MODE_TX_HF, {LOW, LOW, LOW}}, {LR11x0::MODE_GNSS, {LOW, LOW, HIGH}},
+    {LR11x0::MODE_WIFI, {LOW, LOW, LOW}},  END_OF_MODE_TABLE,
+};

variants/dreamcatcher/variant.h

@@ -0,0 +1,109 @@
+#undef I2C_SDA
+#undef I2C_SCL
+#define I2C_SDA 16 // I2C pins for this board
+#define I2C_SCL 17
+
+#define I2C_SDA1 45
+#define I2C_SCL1 46
+
+#define LED_PIN 6
+#define LED_STATE_ON 1
+#define BUTTON_PIN 0
+
+#define HAS_TPS65233
+
+// V1 of SubG Switch SMA 0 or F Selector 1
+// #define RF_SW_SUBG1 8
+// V2 of SubG Switch SMA 1 or F Selector 0
+// #define RF_SW_SUBG2 5
+
+#define RESET_OLED 8 // Emulate RF_SW_SUBG1, Use F Connector
+#define VTFT_CTRL 5  // Emulate RF_SW_SUBG2, for SMA swap the pin values
+
+#if OTHERNET_DC_REV == 2206
+#define USE_LR1120
+
+#define SPI_MISO 37
+#define SPI_MOSI 39
+#define SPI_SCK 38
+#define SDCARD_CS 40
+
+#define PIN_BUZZER 48
+
+// These can either be used for GPS or a serial link. Define through Protobufs
+// #define GPS_RX_PIN 10
+// #define GPS_TX_PIN 21
+
+#define PIN_POWER_EN 7            // RF section power supply enable
+#define PERIPHERAL_WARMUP_MS 1000 // wait for TPS chip to initialize
+#define TPS_EXTM 45               // connected, but not used
+#define BIAS_T_ENABLE 9           // needs to be low
+#define BIAS_T_VALUE 0
+#else // 2301
+#define USE_LR1121
+#define SPI_MISO 10
+#define SPI_MOSI 39
+#define SPI_SCK 38
+
+#define SDCARD_CS 40
+
+// This is only informational, we always use SD cards in 1 bit mode
+#define SPI_DATA1 15
+#define SPI_DATA2 18
+
+// These can either be used for GPS or a serial link. Define through Protobufs
+// #define GPS_RX_PIN 36
+// #define GPS_TX_PIN 37
+
+// dac / amp instead of buzzer
+#define HAS_I2S
+#define DAC_I2S_BCK 21
+#define DAC_I2S_WS 9
+#define DAC_I2S_DOUT 48
+
+#define BIAS_T_ENABLE 7 // needs to be low
+#define BIAS_T_VALUE 0
+#define BIAS_T_SUBGHZ 2 // also needs to be low, we hijack SENSOR_POWER_CTRL_PIN to emulate this
+#define SENSOR_POWER_CTRL_PIN BIAS_T_SUBGHZ
+#define SENSOR_POWER_ON 0
+#endif
+
+#define HAS_SDCARD // Have SPI interface SD card slot
+#define SDCARD_USE_SPI1
+
+#define LORA_RESET 3
+#define LORA_SCK 12
+#define LORA_MISO 13
+#define LORA_MOSI 11
+#define LORA_CS 14
+#define LORA_DIO9 4
+#define LORA_DIO2 47
+
+#define LR1120_IRQ_PIN LORA_DIO9
+#define LR1120_NRESET_PIN LORA_RESET
+#define LR1120_BUSY_PIN LORA_DIO2
+#define LR1120_SPI_NSS_PIN LORA_CS
+#define LR1120_SPI_SCK_PIN LORA_SCK
+#define LR1120_SPI_MOSI_PIN LORA_MOSI
+#define LR1120_SPI_MISO_PIN LORA_MISO
+
+#define LR1121_IRQ_PIN LORA_DIO9
+#define LR1121_NRESET_PIN LORA_RESET
+#define LR1121_BUSY_PIN LORA_DIO2
+#define LR1121_SPI_NSS_PIN LORA_CS
+#define LR1121_SPI_SCK_PIN LORA_SCK
+#define LR1121_SPI_MOSI_PIN LORA_MOSI
+#define LR1121_SPI_MISO_PIN LORA_MISO
+
+#define LR11X0_DIO3_TCXO_VOLTAGE 1.8
+#define LR11X0_DIO_AS_RF_SWITCH
+
+// This board needs external switching between sub-GHz and 2.4G circuits
+
+// V1 of RF1 selector SubG 1 or 2.4GHz 0
+// #define RF_SW_SMA1 42
+// V2 of RF1 Selector SubG 0 or 2.4GHz 1
+// #define RF_SW_SMA2 41
+
+#define LR11X0_RF_SWITCH_SUBGHZ 42
+#define LR11X0_RF_SWITCH_2_4GHZ 41