Added Pi PIcoW support in the following modes:

- Companion Radio over USB Serial
- Repeater
- Room Server
- Terminal Chat

variants/picow/platformio.ini

@@ -0,0 +1,103 @@
+[picow]
+extends = rp2040_base
+platform = https://github.com/maxgerhardt/platform-raspberrypi.git
+board = rpipicow
+board_build.core = earlephilhower
+board_build.filesystem_size = 0.5m
+build_flags = ${rp2040_base.build_flags}
+  -I variants/picow
+;  -D PICOW
+;  -D HW_SPI1_DEVICE
+  -D SX126X_CURRENT_LIMIT=130
+  -D RADIO_CLASS=CustomSX1262
+  -D WRAPPER_CLASS=CustomSX1262Wrapper
+  -D LORA_TX_POWER=22
+  -D SX126X_RX_BOOSTED_GAIN=1
+build_src_filter = ${rp2040_base.build_src_filter}
+  +<helpers/rp2040/*.cpp>
+  +<../variants/picow>
+lib_deps = ${rp2040_base.lib_deps}
+
+[env:PicoW_Repeater]
+extends = picow
+build_flags = ${picow.build_flags}
+  -D ADVERT_NAME='"PicoW Repeater"'
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
+  -D ADMIN_PASSWORD='"password"'
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${picow.build_src_filter}
+  +<../examples/simple_repeater>
+
+[env:PicoW_room_server]
+extends = picow
+build_flags = ${picow.build_flags}
+  -D ADVERT_NAME='"Test Room"'
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
+  -D ADMIN_PASSWORD='"password"'
+  -D ROOM_PASSWORD='"hello"'
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${picow.build_src_filter}
+  +<../examples/simple_room_server>
+
+[env:PicoW_companion_radio_usb]
+extends = picow
+build_flags = ${picow.build_flags}
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=8
+;  -D ENABLE_PRIVATE_KEY_IMPORT=1
+;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+; NOTE: DO NOT ENABLE -->  -D MESH_PACKET_LOGGING=1
+; NOTE: DO NOT ENABLE -->  -D MESH_DEBUG=1
+build_src_filter = ${picow.build_src_filter}
+  +<../examples/companion_radio>
+lib_deps = ${picow.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+; [env:PicoW_companion_radio_ble]
+; extends = picow
+; build_flags = ${picow.build_flags}
+;   -D MAX_CONTACTS=100
+;   -D MAX_GROUP_CHANNELS=8
+;   -D BLE_PIN_CODE=123456
+;   -D BLE_DEBUG_LOGGING=1
+; ;  -D ENABLE_PRIVATE_KEY_IMPORT=1
+; ;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+; ;  -D MESH_PACKET_LOGGING=1
+; ;  -D MESH_DEBUG=1
+; build_src_filter = ${picow.build_src_filter}
+;   +<../examples/companion_radio>
+; lib_deps = ${picow.lib_deps}
+;   densaugeo/base64 @ ~1.4.0
+
+; [env:PicoW_companion_radio_wifi]
+; extends = picow
+; build_flags = ${picow.build_flags}
+;   -D MAX_CONTACTS=100
+;   -D MAX_GROUP_CHANNELS=8
+;   -D WIFI_DEBUG_LOGGING=1
+;   -D WIFI_SSID='"myssid"'
+;   -D WIFI_PWD='"mypwd"'
+; ;  -D ENABLE_PRIVATE_KEY_IMPORT=1
+; ;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+; ;  -D MESH_PACKET_LOGGING=1
+; ;  -D MESH_DEBUG=1
+; build_src_filter = ${picow.build_src_filter}
+;   +<../examples/companion_radio>
+; lib_deps = ${picow.lib_deps}
+;   densaugeo/base64 @ ~1.4.0
+
+[env:PicoW_terminal_chat]
+extends = picow
+build_flags = ${picow.build_flags}
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+  -D MESH_PACKET_LOGGING=1
+  -D MESH_DEBUG=1
+build_src_filter = ${picow.build_src_filter}
+  +<../examples/simple_secure_chat/main.cpp>
+lib_deps = ${picow.lib_deps}
+  densaugeo/base64 @ ~1.4.0

variants/picow/target.cpp

@@ -0,0 +1,73 @@
+#include <Arduino.h>
+#include "target.h"
+#include <helpers/ArduinoHelpers.h>
+
+PicoWBoard board;
+
+RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI1);
+
+WRAPPER_CLASS radio_driver(radio, board);
+
+VolatileRTCClock fallback_clock;
+AutoDiscoverRTCClock rtc_clock(fallback_clock);
+
+#ifndef LORA_CR
+  #define LORA_CR      5
+#endif
+
+bool radio_init() {
+  rtc_clock.begin(Wire);
+  
+#ifdef SX126X_DIO3_TCXO_VOLTAGE
+  float tcxo = SX126X_DIO3_TCXO_VOLTAGE;
+#else
+  float tcxo = 1.6f;
+#endif
+
+  SPI1.setMISO(P_LORA_MISO);
+  //SPI1.setCS(P_LORA_NSS); // Setting CS results in freeze
+  SPI1.setSCK(P_LORA_SCLK);
+  SPI1.setMOSI(P_LORA_MOSI);
+
+  SPI1.begin();
+  int status = radio.begin(LORA_FREQ, LORA_BW, LORA_SF, LORA_CR, RADIOLIB_SX126X_SYNC_WORD_PRIVATE, LORA_TX_POWER, 8, tcxo);
+  if (status != RADIOLIB_ERR_NONE) {
+    Serial.print("ERROR: radio init failed: ");
+    Serial.println(status);
+    return false;  // fail
+  }
+  
+  radio.setCRC(1);
+  
+#ifdef SX126X_CURRENT_LIMIT
+  radio.setCurrentLimit(SX126X_CURRENT_LIMIT);
+#endif
+#ifdef SX126X_DIO2_AS_RF_SWITCH
+  radio.setDio2AsRfSwitch(SX126X_DIO2_AS_RF_SWITCH);
+#endif
+#ifdef SX126X_RX_BOOSTED_GAIN
+  radio.setRxBoostedGainMode(SX126X_RX_BOOSTED_GAIN);
+#endif
+
+  return true;  // success
+}
+
+uint32_t radio_get_rng_seed() {
+  return radio.random(0x7FFFFFFF);
+}
+
+void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr) {
+  radio.setFrequency(freq);
+  radio.setSpreadingFactor(sf);
+  radio.setBandwidth(bw);
+  radio.setCodingRate(cr);
+}
+
+void radio_set_tx_power(uint8_t dbm) {
+  radio.setOutputPower(dbm);
+}
+
+mesh::LocalIdentity radio_new_identity() {
+  RadioNoiseListener rng(radio);
+  return mesh::LocalIdentity(&rng);  // create new random identity
+}

variants/picow/target.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#define RADIOLIB_STATIC_ONLY 1
+#include <RadioLib.h>
+#include <helpers/RadioLibWrappers.h>
+#include <helpers/rp2040/PicoWBoard.h>
+#include <helpers/CustomSX1262Wrapper.h>
+#include <helpers/AutoDiscoverRTCClock.h>
+
+extern PicoWBoard board;
+extern WRAPPER_CLASS radio_driver;
+extern AutoDiscoverRTCClock rtc_clock;
+
+bool radio_init();
+uint32_t radio_get_rng_seed();
+void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr);
+void radio_set_tx_power(uint8_t dbm);
+mesh::LocalIdentity radio_new_identity();