[feat](trx-rs): remap decoder modes — remove DIG/PKT from SDR, wire decoders to standard modes

For SDR backends, DIG and PKT are removed from supported_modes and
replaced by USB and FM respectively. CAT backends (FT-817, FT-450D)
retain DIG/PKT as before.

Decoder mode allowances updated:
- APRS: FM | PKT (was PKT only)
- HF-APRS: USB | DIG (was DIG only)
- AIS: AIS | FM | PKT (was AIS only)
- VDES: VDES | FM (was VDES only)
- FT8/FT4/FT2/WSPR: USB | DIG (unchanged)
- CW: CW | CWR (unchanged)
- LRPT: FM (unchanged, mode-independent)

Frontend status text, bookmark decoder toggles, background-decode
fallbacks, and scheduler wiring updated to match.

https://claude.ai/code/session_01DCAaMH8RF5FNB2gRtVu4pY
Signed-off-by: Claude <noreply@anthropic.com>

src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js

@@ -3241,22 +3241,22 @@ function render(update) {
   const wsprStatus = document.getElementById("wspr-status");
   setModeBoundDecodeStatus(
     aisStatus,
-    ["AIS"],
+    ["AIS", "FM", "PKT"],
-    "Select AIS mode to decode",
+    "Select AIS or FM mode to decode",
     "Connected, listening for packets",
   );
   if (window.updateAisBar) window.updateAisBar();
   setModeBoundDecodeStatus(
     vdesStatus,
-    ["VDES"],
+    ["VDES", "FM"],
-    "Select VDES mode to decode",
+    "Select VDES or FM mode to decode",
     "Connected, listening for bursts",
   );
   if (window.updateVdesBar) window.updateVdesBar();
   setModeBoundDecodeStatus(
     aprsStatus,
-    ["PKT"],
+    ["PKT", "FM"],
-    "Select PKT mode to decode",
+    "Select FM mode to decode",
     "Connected, listening for packets",
   );
   if (window.updateAprsBar) window.updateAprsBar();
@@ -8903,10 +8903,10 @@ function updateDecodeStatus(text) {
   const ft8 = document.getElementById("ft8-status");
   const ft4 = document.getElementById("ft4-status");
   const ft2 = document.getElementById("ft2-status");
-  setModeBoundDecodeStatus(ais, ["AIS"], "Select AIS mode to decode", text);
+  setModeBoundDecodeStatus(ais, ["AIS", "FM", "PKT"], "Select AIS or FM mode to decode", text);
   const vdesText = text === "Connected, listening for packets" ? "Connected, listening for bursts" : text;
-  setModeBoundDecodeStatus(vdes, ["VDES"], "Select VDES mode to decode", vdesText);
+  setModeBoundDecodeStatus(vdes, ["VDES", "FM"], "Select VDES or FM mode to decode", vdesText);
-  setModeBoundDecodeStatus(aprs, ["PKT"], "Select PKT mode to decode", text);
+  setModeBoundDecodeStatus(aprs, ["PKT", "FM"], "Select FM mode to decode", text);
   const cwText = text === "Connected, listening for packets" ? "Connected, listening for CW" : text;
   setModeBoundDecodeStatus(cw, ["CW", "CWR"], "Select CW mode to decode", cwText);
   if (ft8 && ft8.textContent !== "Receiving") ft8.textContent = text;

src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html

@@ -449,14 +449,13 @@
               <input type="number" id="bm-freq" class="status-input" required min="0" placeholder="e.g. 7074000" />
             </label>
             <label class="bm-label">Mode
-              <input type="text" id="bm-mode" class="status-input" list="bm-mode-list" required placeholder="e.g. DIG" />
+              <input type="text" id="bm-mode" class="status-input" list="bm-mode-list" required placeholder="e.g. USB" />
               <datalist id="bm-mode-list">
                 <option value="LSB">
                 <option value="USB">
                 <option value="AM">
                 <option value="SAM">
                 <option value="FM">
-                <option value="DIG">
                 <option value="CW">
                 <option value="WFM">
               </datalist>
@@ -561,25 +560,25 @@
         <div class="plugin-item">
           <strong>FT8 Decoder</strong>
           <div style="color:var(--text-muted); font-size:0.85rem; margin-top:0.2rem;">
-            Decodes FT8 messages from RX audio (DIG/USB only, toggle required).
+            Decodes FT8 messages from RX audio (USB only, toggle required).
           </div>
         </div>
         <div class="plugin-item">
           <strong>FT4 Decoder</strong>
           <div style="color:var(--text-muted); font-size:0.85rem; margin-top:0.2rem;">
-            Decodes FT4 messages from RX audio (DIG/USB only, toggle required). 7.5-second slots.
+            Decodes FT4 messages from RX audio (USB only, toggle required). 7.5-second slots.
           </div>
         </div>
         <div class="plugin-item">
           <strong>FT2 Decoder</strong>
           <div style="color:var(--text-muted); font-size:0.85rem; margin-top:0.2rem;">
-            Decodes FT2 messages from RX audio (DIG/USB only, toggle required). 3.75-second slots.
+            Decodes FT2 messages from RX audio (USB only, toggle required). 3.75-second slots.
           </div>
         </div>
         <div class="plugin-item">
           <strong>WSPR Decoder</strong>
           <div style="color:var(--text-muted); font-size:0.85rem; margin-top:0.2rem;">
-            Decodes WSPR messages from RX audio (DIG/USB only, toggle required).
+            Decodes WSPR messages from RX audio (USB only, toggle required).
           </div>
         </div>
         <div class="plugin-item">

src/trx-client/trx-frontend/trx-frontend-http/assets/web/plugins/aprs.js

@@ -322,7 +322,8 @@ function renderAprsHistory() {
 
 function updateAprsBar() {
   if (!aprsBarOverlay) return;
-  const isPkt = (document.getElementById("mode")?.value || "").toUpperCase() === "PKT";
+  const modeVal = (document.getElementById("mode")?.value || "").toUpperCase();
+  const isPkt = modeVal === "PKT" || modeVal === "FM";
   const cutoffMs = Date.now() - APRS_BAR_WINDOW_MS;
   const okFrames = aprsPacketHistory.filter((p) => p.crcOk && p._tsMs >= cutoffMs);
   const frames = collapseAprsDuplicates(okFrames).slice(0, 8);

src/trx-client/trx-frontend/trx-frontend-http/assets/web/plugins/background-decode.js

@@ -102,7 +102,7 @@
     if (supported.length > 0) return supported;
     const mode = String(bookmark && bookmark.mode || "").trim().toUpperCase();
     if (mode === "AIS") return ["ais"];
-    if (mode === "PKT") return ["aprs"];
+    if (mode === "PKT" || mode === "FM") return ["aprs"];
     return supported;
   }
 

src/trx-client/trx-frontend/trx-frontend-http/assets/web/plugins/bookmarks.js

@@ -428,9 +428,9 @@ async function bmApply(bm) {
         await postPath("/set_freq?hz=" + bm.freq_hz);
       }
     })();
-    // Decoder toggles (DIG / FM modes) — also fire-and-forget.
+    // Decoder toggles (USB / DIG / FM / PKT modes) — also fire-and-forget.
     const hasDecoders = Array.isArray(bm.decoders) && bm.decoders.length > 0;
-    const decoderMode = bm.mode === "DIG" || bm.mode === "FM";
+    const decoderMode = bm.mode === "USB" || bm.mode === "DIG" || bm.mode === "FM" || bm.mode === "PKT";
     const decoderPromise = (hasDecoders && decoderMode) ? (async () => {
       const statusResp = await fetch("/status");
       if (statusResp.ok) {

src/trx-client/trx-frontend/trx-frontend-http/src/background_decode.rs

@@ -630,7 +630,7 @@ fn bookmark_supported_decoder_kinds(bookmark: &Bookmark) -> Vec<String> {
 
     match bookmark.mode.trim().to_ascii_uppercase().as_str() {
         "AIS" => vec!["ais".to_string()],
-        "PKT" => vec!["aprs".to_string()],
+        "PKT" | "FM" => vec!["aprs".to_string()],
         _ => Vec::new(),
     }
 }

src/trx-client/trx-frontend/trx-frontend-http/src/scheduler.rs

@@ -966,7 +966,8 @@ async fn apply_scheduler_decoders(
     bookmark: &crate::server::bookmarks::Bookmark,
     extra_bookmarks: &[crate::server::bookmarks::Bookmark],
 ) {
-    let mut want_aprs = bookmark.mode.trim().eq_ignore_ascii_case("PKT");
+    let mut want_aprs = bookmark.mode.trim().eq_ignore_ascii_case("PKT")
+        || bookmark.mode.trim().eq_ignore_ascii_case("FM");
     let mut want_hf_aprs = false;
     let mut want_ft8 = false;
     let mut want_ft4 = false;

src/trx-client/trx-frontend/trx-frontend-http/src/vchan.rs

@@ -723,7 +723,7 @@ mod tests {
 
         mgr.init_rig(rig_id, 14_074_000, "USB");
         let channel = mgr
-            .allocate(session_id, rig_id, 14_075_000, "DIG")
+            .allocate(session_id, rig_id, 14_075_000, "USB")
             .expect("allocate vchan");
 
         assert_eq!(mgr.channels(rig_id).len(), 2);
@@ -747,7 +747,7 @@ mod tests {
             &[(
                 "bm-ft8".to_string(),
                 14_074_000,
-                "DIG".to_string(),
+                "USB".to_string(),
                 3_000,
                 vec!["ft8".to_string()],
             )],
@@ -756,7 +756,7 @@ mod tests {
         let channels = mgr.channels(rig_id);
         assert_eq!(channels.len(), 2);
         assert_eq!(channels[1].freq_hz, 14_074_000);
-        assert_eq!(channels[1].mode, "DIG");
+        assert_eq!(channels[1].mode, "USB");
         assert_eq!(channels[1].bandwidth_hz, 3_000);
         assert_eq!(channels[1].subscribers, 0);
         assert!(channels[1].permanent);
@@ -770,14 +770,14 @@ mod tests {
 
         mgr.init_rig(rig_id, 14_074_000, "USB");
         let _channel = mgr
-            .allocate(session_id, rig_id, 14_075_000, "DIG")
+            .allocate(session_id, rig_id, 14_075_000, "USB")
             .expect("allocate vchan");
         mgr.sync_scheduler_channels(
             rig_id,
             &[(
                 "bm-ft8".to_string(),
                 14_074_000,
-                "DIG".to_string(),
+                "USB".to_string(),
                 3_000,
                 vec!["ft8".to_string()],
             )],
@@ -787,7 +787,7 @@ mod tests {
 
         let channels = mgr.channels(rig_id);
         assert_eq!(channels.len(), 2);
-        assert_eq!(channels[1].mode, "DIG");
+        assert_eq!(channels[1].mode, "USB");
         assert_eq!(channels[1].subscribers, 0);
     }
 
@@ -803,7 +803,7 @@ mod tests {
             &[(
                 "bm-aprs".to_string(),
                 144_800_000,
-                "PKT".to_string(),
+                "FM".to_string(),
                 12_500,
                 vec!["aprs".to_string()],
             )],

src/trx-server/src/audio.rs

@@ -1183,7 +1183,7 @@ fn run_playback(
     }
 }
 
-/// Run the APRS decoder task. Only processes PCM when rig mode is PKT.
+/// Run the APRS decoder task. Only processes PCM when rig mode is FM or PKT.
 pub async fn run_aprs_decoder(
     sample_rate: u32,
     channels: u16,
@@ -1257,9 +1257,9 @@ async fn run_aprs_decoder_inner(
 
     let mode_match = |state: &RigState| -> bool {
         if is_hf {
-            matches!(state.status.mode, RigMode::DIG)
+            matches!(state.status.mode, RigMode::USB | RigMode::DIG)
         } else {
-            matches!(state.status.mode, RigMode::PKT)
+            matches!(state.status.mode, RigMode::FM | RigMode::PKT)
         }
     };
     let get_reset_seq = |state: &RigState| -> u64 {
@@ -1405,14 +1405,14 @@ pub async fn run_ais_decoder(
     let mut decoder_a = AisDecoder::new(sample_rate);
     let mut decoder_b = AisDecoder::new(sample_rate);
     let mut was_active = false;
-    let mut active = matches!(state_rx.borrow().status.mode, RigMode::AIS);
+    let mut active = matches!(state_rx.borrow().status.mode, RigMode::AIS | RigMode::FM | RigMode::PKT);
 
     loop {
         if !active {
             match state_rx.changed().await {
                 Ok(()) => {
                     let state = state_rx.borrow();
-                    active = matches!(state.status.mode, RigMode::AIS);
+                    active = matches!(state.status.mode, RigMode::AIS | RigMode::FM | RigMode::PKT);
                     if active {
                         pcm_a_rx = pcm_a_rx.resubscribe();
                         pcm_b_rx = pcm_b_rx.resubscribe();
@@ -1476,7 +1476,7 @@ pub async fn run_ais_decoder(
                 match changed {
                     Ok(()) => {
                         let state = state_rx.borrow();
-                        active = matches!(state.status.mode, RigMode::AIS);
+                        active = matches!(state.status.mode, RigMode::AIS | RigMode::FM | RigMode::PKT);
                         if !active && was_active {
                             decoder_a.reset();
                             decoder_b.reset();
@@ -1505,14 +1505,14 @@ pub async fn run_vdes_decoder(
     info!("VDES decoder started ({}Hz complex baseband)", sample_rate);
     let mut decoder = VdesDecoder::new(sample_rate);
     let mut was_active = false;
-    let mut active = matches!(state_rx.borrow().status.mode, RigMode::VDES);
+    let mut active = matches!(state_rx.borrow().status.mode, RigMode::VDES | RigMode::FM);
 
     loop {
         if !active {
             match state_rx.changed().await {
                 Ok(()) => {
                     let state = state_rx.borrow();
-                    active = matches!(state.status.mode, RigMode::VDES);
+                    active = matches!(state.status.mode, RigMode::VDES | RigMode::FM);
                     if active {
                         iq_rx = iq_rx.resubscribe();
                     }
@@ -1550,7 +1550,7 @@ pub async fn run_vdes_decoder(
                 match changed {
                     Ok(()) => {
                         let state = state_rx.borrow();
-                        active = matches!(state.status.mode, RigMode::VDES);
+                        active = matches!(state.status.mode, RigMode::VDES | RigMode::FM);
                         if !active && was_active {
                             decoder.reset();
                             was_active = false;

src/trx-server/trx-backend/trx-backend-soapysdr/src/lib.rs

@@ -158,7 +158,8 @@ impl SoapySdrRig {
     fn default_bandwidth_for_mode(mode: &RigMode) -> u32 {
         match mode {
             RigMode::LSB | RigMode::USB | RigMode::DIG => 3_000,
-            RigMode::PKT | RigMode::AIS => 25_000,
+            RigMode::AIS => 25_000,
+            RigMode::PKT => 25_000,
             RigMode::VDES => 100_000,
             RigMode::CW | RigMode::CWR => 500,
             RigMode::AM | RigMode::SAM => 9_000,
@@ -317,8 +318,6 @@ impl SoapySdrRig {
                     RigMode::FM,
                     RigMode::AIS,
                     RigMode::VDES,
-                    RigMode::DIG,
-                    RigMode::PKT,
                 ],
                 num_vfos: 1,
                 lock: false,

src/trx-server/trx-backend/trx-backend-soapysdr/src/vchan_impl.rs

@@ -504,7 +504,7 @@ mod tests {
 
         mgr.add_channel(14_074_000, &RigMode::USB).unwrap();
         let hidden_id = Uuid::new_v4();
-        mgr.ensure_background_channel_pcm(hidden_id, 14_075_000, &RigMode::DIG)
+        mgr.ensure_background_channel_pcm(hidden_id, 14_075_000, &RigMode::USB)
             .unwrap();
 
         let visible = mgr.channels();