Make Triple VFO and Beam overlay services optional

App/CMakeLists.txt

@@ -201,9 +201,15 @@ enable_feature(ENABLE_FEAT_F4HWN_OVERLAY_APPS
     apps/app_overlay.c
     apps/app_menu.c
 )
+enable_feature(ENABLE_FEAT_F4HWN_OVERLAY_TRIVFO)
+enable_feature(ENABLE_FEAT_F4HWN_OVERLAY_BEAM)
 if(ENABLE_FEAT_F4HWN_OVERLAY_APPS AND NOT ENABLE_FEAT_F4HWN_MULTIBOOT_OVERLAY)
     message(FATAL_ERROR "ENABLE_FEAT_F4HWN_OVERLAY_APPS requires ENABLE_FEAT_F4HWN_MULTIBOOT_OVERLAY (the 4 KiB overlay workspace).")
 endif()
+if((ENABLE_FEAT_F4HWN_OVERLAY_TRIVFO OR ENABLE_FEAT_F4HWN_OVERLAY_BEAM) AND
+   NOT ENABLE_FEAT_F4HWN_OVERLAY_APPS)
+    message(FATAL_ERROR "Overlay Triple VFO/Beam services require ENABLE_FEAT_F4HWN_OVERLAY_APPS.")
+endif()
 enable_feature(ENABLE_FEAT_F4HWN_K5VIEWER 
     k5viewer.c
 )

App/apps/app_api.h

@@ -255,7 +255,7 @@ typedef struct app_api {
      * Returns 0 for any other key. Keep get_key() raw for spatial controls. */
     int8_t (*nav_dir)(uint8_t key);
 
-    /* ---- triple VFO (API level 1 baseline) ----
+    /* ---- triple VFO (optional resident capability APP_CAP_TRIVFO) ----
      * A and B are the live Main Display VFOs. C is a resident temporary VFO
      * loaded from c_channel (or the first valid memory after B when invalid).
      * tick is called every 20 ms by the app and returns APP_TRIVFO_* state. */
@@ -267,7 +267,7 @@ typedef struct app_api {
     uint8_t  (*trivfo_tick)(void);
     uint8_t  (*trivfo_ptt)(bool pressed); /* physical PTT edge; resident applies SetPTT */
 
-    /* ---- BEAM channel transfer (API level 1 baseline) ---- */
+    /* ---- BEAM channel transfer (optional resident capability APP_CAP_BEAM) ---- */
     void     (*beam_prepare)(void); /* tune the fixed narrow-band FSK channel */
     void     (*beam_leave)(void); /* defensively stop FSK before app return */
     void     (*beam_get)(app_beam_channel_t *channel); /* export selected VFO */

App/apps/app_overlay.c

@@ -54,11 +54,18 @@
 _Static_assert(sizeof(app_header_t) == 64, "app_header_t must be 64 bytes");
 _Static_assert(sizeof(app_api_t) <= UINT16_MAX, "app_api_t size field overflow");
 
+enum {
+    APP_AVAILABLE_CAPS = 0u
 #ifdef ENABLE_FMRADIO
-    #define APP_AVAILABLE_CAPS APP_CAP_FM
-#else
-    #define APP_AVAILABLE_CAPS 0u
+                       | APP_CAP_FM
 #endif
+#ifdef ENABLE_FEAT_F4HWN_OVERLAY_TRIVFO
+                       | APP_CAP_TRIVFO
+#endif
+#ifdef ENABLE_FEAT_F4HWN_OVERLAY_BEAM
+                       | APP_CAP_BEAM
+#endif
+};
 
 /* ---- ABI wrappers: the few resident calls that are not a direct signature match ---- */
 static bool app_allow_screen_saver;
@@ -137,7 +144,8 @@ static void app_play_tone(uint16_t tone, uint16_t ms)
     AUDIO_AudioPathOff();
 }
 
-/* ---- API level 1: resident triple-VFO engine ----------------------------
+#ifdef ENABLE_FEAT_F4HWN_OVERLAY_TRIVFO
+/* ---- optional resident triple-VFO engine --------------------------------
  * The overlay owns the UI and key timing, while this resident engine owns all
  * radio details.  Keeping VFO_Info_t and BK4819 sequencing on this side makes
  * the app independent of feature-dependent firmware layouts. */
@@ -532,8 +540,10 @@ static uint8_t app_trivfo_ptt(bool pressed)
     app_trivfo_tx_ticks = 0;
     return 0;
 }
+#endif
 
-/* ---- API level 1: BEAM radio/channel bridge -------------------------------
+#ifdef ENABLE_FEAT_F4HWN_OVERLAY_BEAM
+/* ---- optional BEAM radio/channel bridge -----------------------------------
  * The modal app owns the packet format, CRC, UI and state machine.  Resident
  * code only translates the stable ABI channel structure and performs the FSK
  * operations which depend on VFO_Info_t and the BK4819 driver. */
@@ -757,6 +767,7 @@ static void app_beam_draw(const char *status)
     memset(gFrameBuffer[line], 0, LCD_WIDTH);
     UI_PrintStringSmallBold(status, 2, LCD_WIDTH - 1u, line);
 }
+#endif
 
 /* ---- radio wrappers ---- */
 static int16_t  app_rssi_dbm(void)     { return BK4819_GetRSSI_dBm() + dBmCorrTable[gRxVfo->Band]; }
@@ -803,8 +814,10 @@ static void app_battery_sample(void)
     /* The resident scheduler deliberately skips ADC battery updates while the
      * PA is keyed.  Do the same for Triple VFO: sampling the loaded voltage as
      * capacity made an 80% pack appear to fall immediately to about 16%. */
+#ifdef ENABLE_FEAT_F4HWN_OVERLAY_TRIVFO
     if (app_trivfo_transmitting)
         return;
+#endif
 
     BATTERY_Sample(false);
 }
@@ -1039,6 +1052,7 @@ static const app_api_t app_api = {
     .fm_commit        = app_fm_commit,
 #endif
     .nav_dir          = app_nav_dir,
+#ifdef ENABLE_FEAT_F4HWN_OVERLAY_TRIVFO
     .trivfo_enter     = app_trivfo_enter,
     .trivfo_leave     = app_trivfo_leave,
     .trivfo_get       = app_trivfo_get,
@@ -1046,6 +1060,8 @@ static const app_api_t app_api = {
     .trivfo_step      = app_trivfo_step,
     .trivfo_tick      = app_trivfo_tick,
     .trivfo_ptt       = app_trivfo_ptt,
+#endif
+#ifdef ENABLE_FEAT_F4HWN_OVERLAY_BEAM
     .beam_prepare     = app_beam_prepare,
     .beam_leave       = app_beam_leave,
     .beam_get         = app_beam_get,
@@ -1054,6 +1070,7 @@ static const app_api_t app_api = {
     .beam_rx          = app_beam_rx,
     .beam_rx_poll     = app_beam_rx_poll,
     .beam_draw        = app_beam_draw,
+#endif
 };
 
 uint8_t APP_LaunchOverlay(uint8_t slot)
@@ -1092,7 +1109,9 @@ uint8_t APP_LaunchOverlay(uint8_t slot)
 #ifdef ENABLE_FMRADIO
     app_fm_dirty = false;
 #endif
+#ifdef ENABLE_FEAT_F4HWN_OVERLAY_BEAM
     app_beam_dirty = false;
+#endif
 
     app_allow_screen_saver = (h.flags & APP_FLAG_SCREEN_SAVER) != 0;
     app_screen_saver_wake = false;
@@ -1129,7 +1148,9 @@ uint8_t APP_LaunchOverlay(uint8_t slot)
     app_screen_saver_wake = false;
 
     /* A defensive leave also covers an app returning through an error path. */
+#ifdef ENABLE_FEAT_F4HWN_OVERLAY_TRIVFO
     app_trivfo_leave();
+#endif
 
     /* Restore the resident RX/dual-watch tuning the app ran on top of. */
     gEeprom.RX_VFO = saved_rx_vfo;
@@ -1139,8 +1160,11 @@ uint8_t APP_LaunchOverlay(uint8_t slot)
     /* The overlay held app code, not a valid config sector. */
     PY25Q16_InvalidateCache();
 
+#ifdef ENABLE_FEAT_F4HWN_OVERLAY_BEAM
     app_beam_commit();
+#endif
 
+#ifdef ENABLE_FEAT_F4HWN_OVERLAY_TRIVFO
     if (app_trivfo_ab_dirty) {
         SETTINGS_SaveVfoIndices();
         app_trivfo_ab_dirty = false;
@@ -1152,6 +1176,7 @@ uint8_t APP_LaunchOverlay(uint8_t slot)
                                  &gEeprom.VfoInfo[i], 1);
     }
     app_trivfo_freq_dirty = 0;
+#endif
 
     /* Commit any deferred config the app staged (RMW keeps the slot header). */
     if (app_cfg_len) {

App/apps/app_overlay.h

@@ -81,6 +81,8 @@
 /* Optional resident facilities an app may require.  Requirements live in the
  * previously reserved header bytes, so app_header_t remains 64 bytes. */
 #define APP_CAP_FM            0x00000001u
+#define APP_CAP_TRIVFO        0x00000002u
+#define APP_CAP_BEAM          0x00000004u
 
 typedef struct __attribute__((packed)) {
     uint32_t magic;                    /* APP_MAGIC                              */

App/apps/beam/build.sh

@@ -26,7 +26,7 @@ step 1 compile ; "$CC" $CFLAGS $LDFLAGS "${APP}_app.c" -lgcc -o "${APP}.elf"
 step 2 objcopy ; "$OBJCOPY" -O binary "${APP}.elf" "${APP}.bin"
 step 3 pack    ; python3 ../pack_app.py "${APP}.bin" "${OUT}.app" \
                    --name "$APP_NAME" --ver "$APP_VER" --api-min "$APP_API_MIN" --vma "${APP_VMA}" \
-                   --shortcut beam >/dev/null
+                   --shortcut beam --require beam >/dev/null
 trap - ERR
 
 BYTES=$(wc -c < "${APP}.bin")

App/apps/pack_app.py

@@ -44,6 +44,8 @@ SHORTCUTS = {
 }
 CAPABILITIES = {
     "fm": cdefine("app_overlay.h", "APP_CAP_FM"),
+    "trivfo": cdefine("app_overlay.h", "APP_CAP_TRIVFO"),
+    "beam": cdefine("app_overlay.h", "APP_CAP_BEAM"),
 }
 
 def field(s: str, n: int) -> bytes:

App/apps/trivfo/build.sh

@@ -14,7 +14,7 @@ LDFLAGS="-nostdlib -nostartfiles -T app.ld -Wl,--defsym,APP_VMA=${APP_VMA} -Wl,-
 rm -f ./*.app ./*.elf ./*.bin
 "$CC" $CFLAGS $LDFLAGS "${APP}_app.c" -lgcc -o "${APP}.elf"
 "$OBJCOPY" -O binary "${APP}.elf" "${APP}.bin"
-python3 ../pack_app.py "${APP}.bin" "${OUT}.app" --name "$APP_NAME" --ver "$APP_VER" --api-min "$APP_API_MIN" --vma "${APP_VMA}" --screensaver >/dev/null
+python3 ../pack_app.py "${APP}.bin" "${OUT}.app" --name "$APP_NAME" --ver "$APP_VER" --api-min "$APP_API_MIN" --vma "${APP_VMA}" --require trivfo --screensaver >/dev/null
 BYTES=$(wc -c < "${APP}.bin")
 test "$BYTES" -le 4096
 printf '  ✅ %-13s %4d B  (%d%% of 4 KiB)  ->  %s.app\n' \

CMakePresets.json

@@ -183,6 +183,8 @@
                 "ENABLE_FEAT_F4HWN_BEAM": false,
                 "ENABLE_FEAT_F4HWN_GAME": false,
                 "ENABLE_FEAT_F4HWN_OVERLAY_APPS": true,
+                "ENABLE_FEAT_F4HWN_OVERLAY_TRIVFO": false,
+                "ENABLE_FEAT_F4HWN_OVERLAY_BEAM": true,
                 "EDITION_STRING": "Labs",
                 "TARGET": "f4hwn.labs"
             }