[feat](trx-backend-soapysdr): add wfm denoise levels

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

src/trx-core/src/lib.rs

@@ -13,5 +13,5 @@ pub type DynResult<T> = Result<T, Box<dyn std::error::Error + Send + Sync>>;
 pub use rig::command::RigCommand;
 pub use rig::request::RigRequest;
 pub use rig::response::{RigError, RigResult};
-pub use rig::state::{RdsData, RigFilterState, RigMode, RigSnapshot, RigState};
+pub use rig::state::{RdsData, RigFilterState, RigMode, RigSnapshot, RigState, WfmDenoiseLevel};
 pub use rig::AudioSource;

src/trx-core/src/rig/command.rs

@@ -3,6 +3,7 @@
 // SPDX-License-Identifier: BSD-2-Clause
 
 use crate::radio::freq::Freq;
+use crate::rig::state::WfmDenoiseLevel;
 use crate::RigMode;
 
 /// Internal command handled by the rig task.
@@ -36,6 +37,6 @@ pub enum RigCommand {
     SetSdrGain(f64),
     SetWfmDeemphasis(u32),
     SetWfmStereo(bool),
-    SetWfmDenoise(bool),
+    SetWfmDenoise(WfmDenoiseLevel),
     GetSpectrum,
 }

src/trx-core/src/rig/mod.rs

@@ -187,7 +187,7 @@ pub trait RigCat: Rig + Send {
 
     fn set_wfm_denoise<'a>(
         &'a mut self,
-        _enabled: bool,
+        _level: state::WfmDenoiseLevel,
     ) -> Pin<Box<dyn Future<Output = DynResult<()>> + Send + 'a>> {
         Box::pin(std::future::ready(Err(
             Box::new(response::RigError::not_supported("set_wfm_denoise"))

src/trx-core/src/rig/state.rs

@@ -277,8 +277,17 @@ pub struct RigFilterState {
     pub wfm_stereo: bool,
     #[serde(default)]
     pub wfm_stereo_detected: bool,
-    #[serde(default = "default_wfm_denoise")]
-    pub wfm_denoise: bool,
+    #[serde(default = "default_wfm_denoise_level")]
+    pub wfm_denoise: WfmDenoiseLevel,
+}
+
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq)]
+#[serde(rename_all = "lowercase")]
+pub enum WfmDenoiseLevel {
+    Auto,
+    Low,
+    Medium,
+    High,
 }
 
 fn default_wfm_deemphasis_us() -> u32 {
@@ -289,8 +298,8 @@ fn default_wfm_stereo() -> bool {
     true
 }
 
-fn default_wfm_denoise() -> bool {
-    true
+fn default_wfm_denoise_level() -> WfmDenoiseLevel {
+    WfmDenoiseLevel::Auto
 }
 
 /// Spectrum data from SDR backends (FFT magnitude over the full capture bandwidth).