BLE based logging

src/BluetoothCommon.cpp

@@ -10,4 +10,6 @@ const uint8_t TORADIO_UUID_16[16u] = {0xe7, 0x01, 0x44, 0x12, 0x66, 0x78, 0xdd,
 const uint8_t FROMRADIO_UUID_16[16u] = {0x02, 0x00, 0x12, 0xac, 0x42, 0x02, 0x78, 0xb8,
                                         0xed, 0x11, 0x93, 0x49, 0x9e, 0xe6, 0x55, 0x2c};
 const uint8_t FROMNUM_UUID_16[16u] = {0x53, 0x44, 0xe3, 0x47, 0x75, 0xaa, 0x70, 0xa6,
-                                      0x66, 0x4f, 0x00, 0xa8, 0x8c, 0xa1, 0x9d, 0xed};
+                                      0x66, 0x4f, 0x00, 0xa8, 0x8c, 0xa1, 0x9d, 0xed};
+const uint8_t LOGRADIO_UUID_16[16u] = {0xe2, 0xf2, 0x1e, 0xbe, 0xc5, 0x15, 0xcf, 0xaa,
+                                       0x6b, 0x43, 0xfa, 0x78, 0x38, 0xd2, 0x6f, 0x6c};

src/BluetoothCommon.h

@@ -11,10 +11,11 @@
 #define TORADIO_UUID "f75c76d2-129e-4dad-a1dd-7866124401e7"
 #define FROMRADIO_UUID "2c55e69e-4993-11ed-b878-0242ac120002"
 #define FROMNUM_UUID "ed9da18c-a800-4f66-a670-aa7547e34453"
+#define LOGRADIO_UUID "6c6fd238-78fa-436b-aacf-15c5be1ef2e2"
 
 // NRF52 wants these constants as byte arrays
 // Generated here https://yupana-engineering.com/online-uuid-to-c-array-converter - but in REVERSE BYTE ORDER
-extern const uint8_t MESH_SERVICE_UUID_16[], TORADIO_UUID_16[16u], FROMRADIO_UUID_16[], FROMNUM_UUID_16[];
+extern const uint8_t MESH_SERVICE_UUID_16[], TORADIO_UUID_16[16u], FROMRADIO_UUID_16[], FROMNUM_UUID_16[], LOGRADIO_UUID_16[];
 
 /// Given a level between 0-100, update the BLE attribute
 void updateBatteryLevel(uint8_t level);
@@ -27,4 +28,5 @@ class BluetoothApi
     virtual void clearBonds();
     virtual bool isConnected();
     virtual int getRssi() = 0;
+    virtual void sendLog(const char *logMessage);
 };

src/RedirectablePrint.cpp

@@ -3,6 +3,7 @@
 #include "RTC.h"
 #include "concurrency/OSThread.h"
 #include "configuration.h"
+#include "main.h"
 #include <assert.h>
 #include <cstring>
 #include <memory>
@@ -166,9 +167,43 @@ size_t RedirectablePrint::log(const char *logLevel, const char *format, ...)
         }
 #endif
 
-        va_end(arg);
-
         isContinuationMessage = !hasNewline;
+
+        if (config.bluetooth.device_logging_enabled) {
+            bool isBleConnected = false;
+#ifdef ARCH_ESP32
+            isBleConnected = nimbleBluetooth && nimbleBluetooth->isActive() && nimbleBluetooth->isConnected();
+#elif defined(ARCH_NRF52)
+            isBleConnected = nrf52Bluetooth != nullptr && nrf52Bluetooth->isConnected();
+#endif
+            if (isBleConnected) {
+                char *message;
+                size_t initialLen;
+                size_t len;
+                initialLen = strlen(format);
+                message = new char[initialLen + 1];
+                len = vsnprintf(message, initialLen + 1, format, arg);
+                if (len > initialLen) {
+                    delete[] message;
+                    message = new char[len + 1];
+                    vsnprintf(message, len + 1, format, arg);
+                }
+                auto thread = concurrency::OSThread::currentThread;
+#ifdef ARCH_ESP32
+                if (thread)
+                    nimbleBluetooth->sendLog(mt_sprintf("%s | [%s] %s", logLevel, thread->ThreadName.c_str(), message).c_str());
+                else
+                    nimbleBluetooth->sendLog(mt_sprintf("%s | %s", logLevel, message).c_str());
+#elif defined(ARCH_NRF52)
+                if (thread)
+                    nrf52Bluetooth->sendLog(mt_sprintf("%s | [%s] %s", logLevel, thread->ThreadName.c_str(), message).c_str());
+                else
+                    nrf52Bluetooth->sendLog(mt_sprintf("%s | %s", logLevel, message).c_str());
+#endif
+                delete[] message;
+            }
+        }
+        va_end(arg);
 #ifdef HAS_FREE_RTOS
         xSemaphoreGive(inDebugPrint);
 #else

src/main.cpp

@@ -48,7 +48,6 @@ NimbleBluetooth *nimbleBluetooth = nullptr;
 #ifdef ARCH_NRF52
 #include "NRF52Bluetooth.h"
 NRF52Bluetooth *nrf52Bluetooth = nullptr;
-;
 #endif
 
 #if HAS_WIFI

src/nimble/NimbleBluetooth.cpp

@@ -12,6 +12,7 @@
 
 NimBLECharacteristic *fromNumCharacteristic;
 NimBLECharacteristic *BatteryCharacteristic;
+NimBLECharacteristic *logRadioCharacteristic;
 NimBLEServer *bleServer;
 
 static bool passkeyShowing;
@@ -58,7 +59,6 @@ class NimbleBluetoothFromRadioCallback : public NimBLECharacteristicCallbacks
 {
     virtual void onRead(NimBLECharacteristic *pCharacteristic)
     {
-        LOG_INFO("From Radio onread\n");
         uint8_t fromRadioBytes[meshtastic_FromRadio_size];
         size_t numBytes = bluetoothPhoneAPI->getFromRadio(fromRadioBytes);
 
@@ -180,6 +180,7 @@ void NimbleBluetooth::setupService()
         ToRadioCharacteristic = bleService->createCharacteristic(TORADIO_UUID, NIMBLE_PROPERTY::WRITE);
         FromRadioCharacteristic = bleService->createCharacteristic(FROMRADIO_UUID, NIMBLE_PROPERTY::READ);
         fromNumCharacteristic = bleService->createCharacteristic(FROMNUM_UUID, NIMBLE_PROPERTY::NOTIFY | NIMBLE_PROPERTY::READ);
+        logRadioCharacteristic = bleService->createCharacteristic(LOGRADIO_UUID, NIMBLE_PROPERTY::NOTIFY | NIMBLE_PROPERTY::READ);
     } else {
         ToRadioCharacteristic = bleService->createCharacteristic(
             TORADIO_UUID, NIMBLE_PROPERTY::WRITE | NIMBLE_PROPERTY::WRITE_AUTHEN | NIMBLE_PROPERTY::WRITE_ENC);
@@ -188,6 +189,9 @@ void NimbleBluetooth::setupService()
         fromNumCharacteristic =
             bleService->createCharacteristic(FROMNUM_UUID, NIMBLE_PROPERTY::NOTIFY | NIMBLE_PROPERTY::READ |
                                                                NIMBLE_PROPERTY::READ_AUTHEN | NIMBLE_PROPERTY::READ_ENC);
+        logRadioCharacteristic =
+            bleService->createCharacteristic(LOGRADIO_UUID, NIMBLE_PROPERTY::NOTIFY | NIMBLE_PROPERTY::READ |
+                                                                NIMBLE_PROPERTY::READ_AUTHEN | NIMBLE_PROPERTY::READ_ENC);
     }
     bluetoothPhoneAPI = new BluetoothPhoneAPI();
 
@@ -236,6 +240,14 @@ void NimbleBluetooth::clearBonds()
     NimBLEDevice::deleteAllBonds();
 }
 
+void NimbleBluetooth::sendLog(const char *logMessage)
+{
+    if (!bleServer || !isConnected() || strlen(logMessage) > 512) {
+        return;
+    }
+    logRadioCharacteristic->notify((uint8_t *)logMessage, strlen(logMessage));
+}
+
 void clearNVS()
 {
     NimBLEDevice::deleteAllBonds();

src/nimble/NimbleBluetooth.h

@@ -11,6 +11,7 @@ class NimbleBluetooth : BluetoothApi
     bool isActive();
     bool isConnected();
     int getRssi();
+    void sendLog(const char *logMessage);
 
   private:
     void setupService();