[feat](trx-protocol): add SDR squelch command mapping

Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>

src/trx-protocol/src/codec.rs

@@ -310,10 +310,12 @@ mod tests {
                 fir_taps: 64,
                 cw_center_hz: 700,
                 sdr_gain_db: Some(12.0),
+                sdr_squelch_enabled: None,
+                sdr_squelch_threshold_db: None,
                 wfm_deemphasis_us: 75,
                 wfm_stereo: true,
                 wfm_stereo_detected: false,
-                wfm_denoise: true,
+                wfm_denoise: trx_core::WfmDenoiseLevel::Auto,
             }),
             ..minimal_snapshot()
         })
@@ -350,10 +352,12 @@ mod tests {
                 fir_taps: 128,
                 cw_center_hz: 700,
                 sdr_gain_db: Some(18.0),
+                sdr_squelch_enabled: None,
+                sdr_squelch_threshold_db: None,
                 wfm_deemphasis_us: 50,
                 wfm_stereo: true,
                 wfm_stereo_detected: true,
-                wfm_denoise: true,
+                wfm_denoise: trx_core::WfmDenoiseLevel::Auto,
             }),
             ..minimal_snapshot()
         };

src/trx-protocol/src/mapping.rs

@@ -49,6 +49,13 @@ pub fn client_command_to_rig(cmd: ClientCommand) -> RigCommand {
         ClientCommand::SetBandwidth { bandwidth_hz } => RigCommand::SetBandwidth(bandwidth_hz),
         ClientCommand::SetFirTaps { taps } => RigCommand::SetFirTaps(taps),
         ClientCommand::SetSdrGain { gain_db } => RigCommand::SetSdrGain(gain_db),
+        ClientCommand::SetSdrSquelch {
+            enabled,
+            threshold_db,
+        } => RigCommand::SetSdrSquelch {
+            enabled,
+            threshold_db,
+        },
         ClientCommand::SetWfmDeemphasis { deemphasis_us } => {
             RigCommand::SetWfmDeemphasis(deemphasis_us)
         }
@@ -96,6 +103,13 @@ pub fn rig_command_to_client(cmd: RigCommand) -> ClientCommand {
         RigCommand::SetBandwidth(bandwidth_hz) => ClientCommand::SetBandwidth { bandwidth_hz },
         RigCommand::SetFirTaps(taps) => ClientCommand::SetFirTaps { taps },
         RigCommand::SetSdrGain(gain_db) => ClientCommand::SetSdrGain { gain_db },
+        RigCommand::SetSdrSquelch {
+            enabled,
+            threshold_db,
+        } => ClientCommand::SetSdrSquelch {
+            enabled,
+            threshold_db,
+        },
         RigCommand::SetWfmDeemphasis(deemphasis_us) => {
             ClientCommand::SetWfmDeemphasis { deemphasis_us }
         }

src/trx-protocol/src/types.rs

@@ -40,6 +40,7 @@ pub enum ClientCommand {
     SetBandwidth { bandwidth_hz: u32 },
     SetFirTaps { taps: u32 },
     SetSdrGain { gain_db: f64 },
+    SetSdrSquelch { enabled: bool, threshold_db: f64 },
     SetWfmDeemphasis { deemphasis_us: u32 },
     SetWfmStereo { enabled: bool },
     SetWfmDenoise { level: WfmDenoiseLevel },