codebase into one branch consolidation

examples/companion_radio/main.cpp

@@ -48,12 +48,14 @@
   // Notes mode state
   static bool notesMode = false;
 
-  // Audiobook player — Audio object is heap-allocated on first use to avoid
+  // Audiobook player — Audio object is heap-allocated on first use to avoid
   // consuming ~40KB of DMA/decode buffers at boot (starves BLE stack).
+  #ifdef MECK_AUDIO_VARIANT
   #include "AudiobookPlayerScreen.h"
   #include "Audio.h"
   Audio* audio = nullptr;
   static bool audiobookMode = false;
+  #endif
 
   // Power management
   #if HAS_GPS
@@ -328,7 +330,7 @@ void setup() {
   }
   MESH_DEBUG_PRINTLN("setup() - radio_init() done");
 
-  // CPU frequency scaling — drop to 80 MHz for idle mesh listening
+  // CPU frequency scaling — drop to 80 MHz for idle mesh listening
   cpuPower.begin();
 
   MESH_DEBUG_PRINTLN("setup() - about to call fast_rng.begin()");
@@ -415,7 +417,7 @@ void setup() {
   MESH_DEBUG_PRINTLN("setup() - SPIFFS.begin() done");
 
   // ---------------------------------------------------------------------------
-  // Early SD card init — needed BEFORE the_mesh.begin() so we can restore
+  // Early SD card init — needed BEFORE the_mesh.begin() so we can restore
   // settings from a previous firmware flash.  The display SPI bus is already
   // up (display.begin() ran earlier), so SD can share it now.
   // ---------------------------------------------------------------------------
@@ -556,7 +558,7 @@ void setup() {
   }
   #endif
 
-  // GPS duty cycle — honour saved pref, default to enabled on first boot
+  // GPS duty cycle — honour saved pref, default to enabled on first boot
   #if HAS_GPS
   {
     bool gps_wanted = the_mesh.getNodePrefs()->gps_enabled;
@@ -578,7 +580,7 @@ void setup() {
     MESH_DEBUG_PRINTLN("setup() - BLE disabled at boot (standalone mode)");
   #endif
 
-  Serial.printf("setup() complete — free heap: %d, largest block: %d\n",
+  Serial.printf("setup() complete — free heap: %d, largest block: %d\n",
                  ESP.getFreeHeap(), ESP.getMaxAllocHeap());
   MESH_DEBUG_PRINTLN("=== setup() - COMPLETE ===");
 }
@@ -586,7 +588,7 @@ void setup() {
 void loop() {
   the_mesh.loop();
 
-  // GPS duty cycle — check for fix and manage power state
+  // GPS duty cycle — check for fix and manage power state
   #if HAS_GPS
   {
     bool gps_hw_on = gpsDuty.loop();
@@ -605,6 +607,7 @@ void loop() {
   cpuPower.loop();
 
   // Audiobook: service audio decode regardless of which screen is active
+#ifdef MECK_AUDIO_VARIANT
   {
     AudiobookPlayerScreen* abPlayer =
       (AudiobookPlayerScreen*)ui_task.getAudiobookScreen();
@@ -616,6 +619,7 @@ void loop() {
       }
     }
   }
+#endif
 #ifdef DISPLAY_CLASS
   // Skip UITask rendering when in compose mode to prevent flickering
   #if defined(LilyGo_TDeck_Pro)
@@ -646,7 +650,9 @@ void loop() {
   // Track reader/notes/audiobook mode state for key routing
   readerMode = ui_task.isOnTextReader();
   notesMode = ui_task.isOnNotesScreen();
+  #ifdef MECK_AUDIO_VARIANT
   audiobookMode = ui_task.isOnAudiobookPlayer();
+  #endif
   #else
   ui_task.loop();
   #endif
@@ -837,6 +843,7 @@ void handleKeyboardInput() {
   }
   
   // *** AUDIOBOOK MODE ***
+#ifdef MECK_AUDIO_VARIANT
   if (audiobookMode) {
     AudiobookPlayerScreen* abPlayer =
       (AudiobookPlayerScreen*)ui_task.getAudiobookScreen();
@@ -848,11 +855,11 @@ void handleKeyboardInput() {
     if (key == 'q') {
       if (abPlayer->isBookOpen()) {
         if (abPlayer->isAudioActive()) {
-          // Audio is playing — leave screen, audio continues via audioTick()
+          // Audio is playing — leave screen, audio continues via audioTick()
           Serial.println("Leaving audiobook player (audio continues in background)");
           ui_task.gotoHomeScreen();
         } else {
-          // Paused or stopped — close book, show file list
+          // Paused or stopped — close book, show file list
           abPlayer->closeCurrentBook();
           Serial.println("Closed audiobook (was paused/stopped)");
           // Stay on audiobook screen showing file list
@@ -869,6 +876,7 @@ void handleKeyboardInput() {
     ui_task.injectKey(key);
     return;
   }
+#endif  // MECK_AUDIO_VARIANT
 
   // *** TEXT READER MODE ***
   if (readerMode) {
@@ -1045,7 +1053,7 @@ void handleKeyboardInput() {
       return;
     }
 
-    // All other keys → settings screen via injectKey
+    // All other keys → settings screen via injectKey
     ui_task.injectKey(key);
     return;
   }
@@ -1121,18 +1129,23 @@ void handleKeyboardInput() {
       break;
     
     case 'p':
-      // Open audiobook player — lazy-init Audio + screen on first use
+#ifdef MECK_AUDIO_VARIANT
+      // Open audiobook player -- lazy-init Audio + screen on first use
       Serial.println("Opening audiobook player");
       if (!ui_task.getAudiobookScreen()) {
-        Serial.printf("Audiobook: lazy init — free heap: %d, largest block: %d\n",
+        Serial.printf("Audiobook: lazy init -- free heap: %d, largest block: %d\n",
                        ESP.getFreeHeap(), ESP.getMaxAllocHeap());
         audio = new Audio();
         AudiobookPlayerScreen* abScreen = new AudiobookPlayerScreen(&ui_task, audio);
         abScreen->setSDReady(sdCardReady);
         ui_task.setAudiobookScreen(abScreen);
-        Serial.printf("Audiobook: init complete — free heap: %d\n", ESP.getFreeHeap());
+        Serial.printf("Audiobook: init complete -- free heap: %d\n", ESP.getFreeHeap());
       }
       ui_task.gotoAudiobookPlayer();
+#else
+      Serial.println("Audio not available on this build variant");
+      ui_task.showAlert("No audio hardware", 1500);
+#endif
       break;
     
     case 'n':
@@ -1467,8 +1480,7 @@ void sendComposedMessage() {
 // ============================================================================
 // ESP32-audioI2S CALLBACKS
 // ============================================================================
-// The audio library calls these global functions — must be defined at file scope.
-
+#ifdef MECK_AUDIO_VARIANT
 void audio_info(const char *info) {
   Serial.printf("Audio: %s\n", info);
 }
@@ -1482,5 +1494,6 @@ void audio_eof_mp3(const char *info) {
     abPlayer->onEOF();
   }
 }
+#endif  // MECK_AUDIO_VARIANT
 
 #endif // LilyGo_TDeck_Pro

examples/companion_radio/ui-new/UITask.cpp

@@ -37,7 +37,9 @@
 #include "ContactsScreen.h"
 #include "TextReaderScreen.h"
 #include "SettingsScreen.h"
+#ifdef MECK_AUDIO_VARIANT
 #include "AudiobookPlayerScreen.h"
+#endif
 
 class SplashScreen : public UIScreen {
   UITask* _task;
@@ -167,6 +169,7 @@ void renderBatteryIndicator(DisplayDriver& display, uint16_t batteryMilliVolts,
     display.setTextSize(1);  // restore default text size
   }
 
+#ifdef MECK_AUDIO_VARIANT
   // ---- Audio background playback indicator ----
   // Shows a small play symbol to the left of the battery icon when an
   // audiobook is actively playing in the background.
@@ -182,6 +185,7 @@ void renderBatteryIndicator(DisplayDriver& display, uint16_t batteryMilliVolts,
     display.print(">>");
     display.setTextSize(1); // restore
   }
+#endif
 
   CayenneLPP sensors_lpp;
   int sensors_nb = 0;
@@ -240,11 +244,15 @@ public:
     display.print(filtered_name);
 
     // battery voltage
+#ifdef MECK_AUDIO_VARIANT
     int battLeftX = display.width(); // default if battery doesn't render
     renderBatteryIndicator(display, _task->getBattMilliVolts(), &battLeftX);
 
     // audio background playback indicator (>> icon next to battery)
     renderAudioIndicator(display, battLeftX);
+#else
+    renderBatteryIndicator(display, _task->getBattMilliVolts());
+#endif
 
     // centered clock (tinyfont) - only show when time is valid
     {
@@ -322,7 +330,11 @@ public:
       y += 10;
       display.drawTextCentered(display.width() / 2, y, "[N] Notes       [S] Settings  ");
       y += 10;
+#ifdef MECK_AUDIO_VARIANT
       display.drawTextCentered(display.width() / 2, y, "[E] Reader      [P] Audiobooks");
+#else
+      display.drawTextCentered(display.width() / 2, y, "[E] Reader                    ");
+#endif
       y += 14;
 
       // Nav hint
@@ -431,7 +443,7 @@ public:
         display.drawTextRightAlign(display.width()-1, y, buf);
         y = y + 12;
 
-        // NMEA sentence counter — confirms baud rate and data flow
+        // NMEA sentence counter — confirms baud rate and data flow
         display.drawTextLeftAlign(0, y, "sentences");
         if (gpsDuty.isHardwareOn()) {
           uint16_t sps = gpsStream.getSentencesPerSec();
@@ -1221,13 +1233,13 @@ void UITask::toggleGPS() {
 
     if (_sensors != NULL) {
       if (_node_prefs->gps_enabled) {
-        // Disable GPS — cut hardware power
+        // Disable GPS — cut hardware power
         _sensors->setSettingValue("gps", "0");
         _node_prefs->gps_enabled = 0;
         gpsDuty.disable();
         notify(UIEventType::ack);
       } else {
-        // Enable GPS — start duty cycle
+        // Enable GPS — start duty cycle
         _sensors->setSettingValue("gps", "1");
         _node_prefs->gps_enabled = 1;
         gpsDuty.enable();
@@ -1359,6 +1371,7 @@ void UITask::gotoOnboarding() {
 }
 
 void UITask::gotoAudiobookPlayer() {
+#ifdef MECK_AUDIO_VARIANT
   if (audiobook_screen == nullptr) return;  // No audio hardware
   AudiobookPlayerScreen* abPlayer = (AudiobookPlayerScreen*)audiobook_screen;
   if (_display != NULL) {
@@ -1370,6 +1383,7 @@ void UITask::gotoAudiobookPlayer() {
   }
   _auto_off = millis() + AUTO_OFF_MILLIS;
   _next_refresh = 100;
+#endif
 }
 
 uint8_t UITask::getChannelScreenViewIdx() const {
@@ -1424,6 +1438,7 @@ void UITask::onAdminCliResponse(const char* from_name, const char* text) {
   }
 }
 
+#ifdef MECK_AUDIO_VARIANT
 bool UITask::isAudioPlayingInBackground() const {
   if (!audiobook_screen) return false;
   AudiobookPlayerScreen* player = (AudiobookPlayerScreen*)audiobook_screen;
@@ -1434,4 +1449,5 @@ bool UITask::isAudioPausedInBackground() const {
   if (!audiobook_screen) return false;
   AudiobookPlayerScreen* player = (AudiobookPlayerScreen*)audiobook_screen;
   return player->isBookOpen() && !player->isAudioActive();
-}
+}
+#endif

examples/companion_radio/ui-new/UITask.h

@@ -103,9 +103,11 @@ public:
   bool isOnAudiobookPlayer() const { return curr == audiobook_screen; }
   bool isOnRepeaterAdmin() const { return curr == repeater_admin; }
 
+#ifdef MECK_AUDIO_VARIANT
   // Check if audio is playing/paused in the background (for status indicators)
   bool isAudioPlayingInBackground() const;
   bool isAudioPausedInBackground() const;
+#endif
   uint8_t getChannelScreenViewIdx() const;
 
   void toggleBuzzer();