RP2040: Update core; add mDNS support (#5355)

* Update arduino-pico core

* RP2040: Add mDNS support

* SimpleMDNS `begin` now returns a bool

* Add `-g` option to `debug_build_flags` to link files for gdb

* RAK11310 needs old platform as well

* Change defines to specific architecture

* Core version 4.2.1 is out

arch/rp2xx0/rp2040.ini

@@ -1,8 +1,8 @@
 ; Common settings for rp2040 Processor based targets
 [rp2040_base]
-platform = https://github.com/maxgerhardt/platform-raspberrypi.git#v1.2.0-gcc12
+platform = https://github.com/maxgerhardt/platform-raspberrypi.git#a606be683748c73e9a0d46baf70163478d298f0f ; For arduino-pico 4.2.0
 extends = arduino_base
-platform_packages = framework-arduinopico@https://github.com/earlephilhower/arduino-pico.git#4.0.3
+platform_packages = framework-arduinopico@https://github.com/earlephilhower/arduino-pico.git#4.2.1
 
 board_build.core = earlephilhower
 board_build.filesystem_size = 0.5m

arch/rp2xx0/rp2350.ini

@@ -1,8 +1,8 @@
 ; Common settings for rp2040 Processor based targets
 [rp2350_base]
-platform = https://github.com/maxgerhardt/platform-raspberrypi.git#9e55f6db5c56b9867c69fe473f388beea4546672
+platform = https://github.com/maxgerhardt/platform-raspberrypi.git#a606be683748c73e9a0d46baf70163478d298f0f ; For arduino-pico 4.2.0
 extends = arduino_base
-platform_packages = framework-arduinopico@https://github.com/earlephilhower/arduino-pico.git#a6ab6e1f95bc1428d667d55ea7173c0744acc03c ; 4.0.2+
+platform_packages = framework-arduinopico@https://github.com/earlephilhower/arduino-pico.git#4.2.1
 
 board_build.core = earlephilhower
 board_build.filesystem_size = 0.5m

src/mesh/wifi/WiFiAPClient.cpp

@@ -20,6 +20,8 @@
 #include <ESPmDNS.h>
 #include <esp_wifi.h>
 static void WiFiEvent(WiFiEvent_t event);
+#elif defined(ARCH_RP2040)
+#include <SimpleMDNS.h>
 #endif
 
 #ifndef DISABLE_NTP
@@ -59,19 +61,21 @@ static void onNetworkConnected()
         // Start web server
         LOG_INFO("Start WiFi network services");
 
-#ifdef ARCH_ESP32
         // start mdns
         if (!MDNS.begin("Meshtastic")) {
             LOG_ERROR("Error setting up MDNS responder!");
         } else {
-            LOG_INFO("mDNS responder started");
             LOG_INFO("mDNS Host: Meshtastic.local");
+#ifdef ARCH_ESP32
             MDNS.addService("http", "tcp", 80);
             MDNS.addService("https", "tcp", 443);
-        }
+#elif defined(ARCH_RP2040)
-#else // ESP32 handles this in WiFiEvent
+            // ARCH_RP2040 does not support HTTPS, create a "meshtastic" service
+            MDNS.addService("meshtastic", "tcp", 4403);
+            // ESP32 handles this in WiFiEvent
             LOG_INFO("Obtained IP address: %s", WiFi.localIP().toString().c_str());
 #endif
+        }
 
 #ifndef DISABLE_NTP
         LOG_INFO("Start NTP time client");
@@ -129,7 +133,7 @@ static int32_t reconnectWiFi()
         // Make sure we clear old connection credentials
 #ifdef ARCH_ESP32
         WiFi.disconnect(false, true);
-#else
+#elif defined(ARCH_RP2040)
         WiFi.disconnect(false);
 #endif
         LOG_INFO("Reconnecting to WiFi access point %s", wifiName);
@@ -193,7 +197,7 @@ void deinitWifi()
     if (isWifiAvailable()) {
 #ifdef ARCH_ESP32
         WiFi.disconnect(true, false);
-#else
+#elif defined(ARCH_RP2040)
         WiFi.disconnect(true);
 #endif
         WiFi.mode(WIFI_OFF);
@@ -229,15 +233,15 @@ bool initWifi()
 
             if (config.network.address_mode == meshtastic_Config_NetworkConfig_AddressMode_STATIC &&
                 config.network.ipv4_config.ip != 0) {
-#ifndef ARCH_RP2040
+#ifdef ARCH_ESP32
                 WiFi.config(config.network.ipv4_config.ip, config.network.ipv4_config.gateway, config.network.ipv4_config.subnet,
                             config.network.ipv4_config.dns);
-#else
+#elif defined(ARCH_RP2040)
                 WiFi.config(config.network.ipv4_config.ip, config.network.ipv4_config.dns, config.network.ipv4_config.gateway,
                             config.network.ipv4_config.subnet);
 #endif
             }
-#ifndef ARCH_RP2040
+#ifdef ARCH_ESP32
             WiFi.onEvent(WiFiEvent);
             WiFi.setAutoReconnect(true);
             WiFi.setSleep(false);

variants/rak11310/platformio.ini

@@ -3,6 +3,7 @@ extends = rp2040_base
 board = wiscore_rak11300
 upload_protocol = picotool
 # keep an old SDK to use less memory.
+platform = https://github.com/maxgerhardt/platform-raspberrypi.git#v1.2.0-gcc12
 platform_packages = framework-arduinopico@https://github.com/earlephilhower/arduino-pico.git#3.7.2
 
 # add our variants files to the include and src paths
@@ -13,5 +14,5 @@ build_flags = ${rp2040_base.build_flags}
   -L "${platformio.libdeps_dir}/${this.__env__}/bsec2/src/cortex-m0plus"
 lib_deps =
   ${rp2040_base.lib_deps}
-debug_build_flags = ${rp2040_base.build_flags}
+debug_build_flags = ${rp2040_base.build_flags}, -g
 debug_tool = cmsis-dap ; for e.g. Picotool

variants/rp2040-lora/platformio.ini

@@ -12,5 +12,5 @@ build_flags = ${rp2040_base.build_flags}
   -L "${platformio.libdeps_dir}/${this.__env__}/bsec2/src/cortex-m0plus"
 lib_deps =
   ${rp2040_base.lib_deps}
-debug_build_flags = ${rp2040_base.build_flags}
+debug_build_flags = ${rp2040_base.build_flags}, -g
 debug_tool = cmsis-dap ; for e.g. Picotool

variants/rpipico/platformio.ini

@@ -12,5 +12,5 @@ build_flags = ${rp2040_base.build_flags}
   -L "${platformio.libdeps_dir}/${this.__env__}/bsec2/src/cortex-m0plus"
 lib_deps =
   ${rp2040_base.lib_deps}
-debug_build_flags = ${rp2040_base.build_flags}
+debug_build_flags = ${rp2040_base.build_flags}, -g
 debug_tool = cmsis-dap ; for e.g. Picotool

variants/rpipico2/platformio.ini

@@ -12,5 +12,5 @@ build_flags = ${rp2350_base.build_flags}
   -L "${platformio.libdeps_dir}/${this.__env__}/bsec2/src/cortex-m0plus"
 lib_deps =
   ${rp2350_base.lib_deps}
-debug_build_flags = ${rp2350_base.build_flags}
+debug_build_flags = ${rp2350_base.build_flags}, -g
 debug_tool = cmsis-dap ; for e.g. Picotool

variants/rpipicow/platformio.ini

@@ -14,5 +14,5 @@ build_src_filter = ${rp2040_base.build_src_filter} +<mesh/wifi/>
 lib_deps =
   ${rp2040_base.lib_deps}
   ${networking_base.lib_deps}
-debug_build_flags = ${rp2040_base.build_flags}
+debug_build_flags = ${rp2040_base.build_flags}, -g
 debug_tool = cmsis-dap ; for e.g. Picotool