Commit Graph

366 Commits

Author SHA1 Message Date
sjg 8f7afed132 [fix](trx-backend-soapysdr,trx-frontend-http): keep rds state on bw changes
Co-authored-by: Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 12:13:06 +01:00
sjg adadcb4a77 [fix](trx-backend-soapysdr,trx-frontend-http): preserve raw rds ps text
Co-authored-by: Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 12:01:27 +01:00
sjg 4b5dd36778 [feat](trx-server,trx-client): raise default audio opus bitrate
Co-authored-by: Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 11:33:52 +01:00
sjg b0bf9e3ee0 [feat](trx-rds,trx-frontend-http): reset rds on tune changes
Co-authored-by: Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 11:31:42 +01:00
sjg e886f97eb9 [fix](trx-backend-soapysdr): back off after stream overruns
Co-authored-by: Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 11:24:09 +01:00
sjg 6f09022563 [fix](trx-rs): sync sdr rds tuning and deemphasis default
Make the primary SoapySDR DSP channel follow the tuned\nfrequency so RDS decoding stays aligned with the active\nfrequency rather than the hardware center.\n\nMove the default WFM deemphasis setting to server SDR\nconfig and default it to 50 us, then pass that value into\nthe SoapySDR backend.\n\nCo-authored-by: Codex <codex@openai.com>

Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 11:04:40 +01:00
sjg 855d21fd8a [debug](trx-backend-soapysdr,trx-frontend-http): add RDS diagnostics
Add server-side debug log when RDS data is decoded (PI, PS, PTY).
Extend the RDS panel with active mode, frame counter, and a raw JSON
dump of the last spectrum frame (bins excluded) to help diagnose why
RDS remains absent from the SSE stream.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 09:31:24 +01:00
sjg d5b1b6f020 [fix](trx-backend-soapysdr): widen WFM IQ filter to preserve RDS subcarrier
The FIR LPF cutoff was audio_bandwidth_hz/2; with wfm_bandwidth_hz=75000
this gave 37.5 kHz, stripping the 57 kHz RDS subcarrier before FM
demodulation. Clamp the IQ filter bandwidth to at least 130 kHz (cutoff
≥ 65 kHz) for WFM so the RDS subcarrier always reaches the decoder,
regardless of the configured audio bandwidth.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 09:10:14 +01:00
sjg 3f29ba3db8 [fix](trx-server): inherit global [audio].listen for per-rig audio listeners
In multi-rig mode, each RigInstanceConfig.audio.listen defaulted to
127.0.0.1 independently of the global [audio] listen setting, causing
per-rig audio ports to bind to localhost only and refuse connections
from remote clients.

Fix by passing cli.listen.or(Some(cfg.audio.listen)) as the listen
override, so the global address is always the fallback when --listen
is not supplied on the CLI.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 08:59:15 +01:00
sjg 2f2a74b810 [chore](trx-app): drop per-binary config file support
Only trx-rs.toml with [trx-server] / [trx-client] section headers is
now supported. Simplify ConfigFile trait to a single required method
section_key(); remove config_filename(), combined_key(), and
default_search_paths(). load_from_file() now errors when the expected
section is absent rather than falling back to flat parsing.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 08:45:32 +01:00
sjg b5a1b4af33 [feat](trx-frontend-rigctl): per-rig rigctl listeners for multi-rig setups
Add rig_ports map to RigctlFrontendConfig. When non-empty, one rigctl
TCP listener is spawned per entry instead of the single shared listener,
each routing commands to its assigned rig via rig_id_override on RigRequest.

Add rig_id_override: Option<String> to RigRequest so the remote client
can route individual requests to a specific rig without changing the
globally selected rig. build_envelope prefers the override when set.

Example config:
  [frontends.rigctl]
  enabled = true
  listen = "127.0.0.1"
  port = 4532
  rig_ports.ft817 = 4532
  rig_ports.airspyhf = 4533

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 08:41:39 +01:00
sjg 7a4c2d52b1 [chore](trx-rs): drop legacy ~/.trx-{server,client}.toml search paths
Remove the home-directory dotfile paths that predate the XDG layout.
Search order is now: CWD → ~/.config/trx-rs/ → /etc/trx-rs/, checked
for both the combined trx-rs.toml and the per-binary flat file at each
tier.

Update doc comments and tests accordingly.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 08:31:21 +01:00
sjg d8f030667f [chore](trx-rs): remove unused example_toml() methods
Superseded by example_combined_toml() which now covers all use cases.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 08:13:00 +01:00
sjg 06312abe42 [feat](trx-app): support combined trx-rs.toml config file
Both trx-server and trx-client now look for a combined trx-rs.toml
with [trx-server] and [trx-client] section headers respectively,
falling back to per-binary config files as before.

Search order per tier: combined trx-rs.toml → flat per-binary file,
checked in CWD, ~/.config/trx-rs/, and /etc/trx-rs/.

--print-config now outputs the config under the appropriate section
header so the combined file can be generated directly.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 08:08:45 +01:00
sjg 6a47fb00ad [fix](trx-frontend-http,trx-backend-soapysdr): fix audio rate and stereo copy
JS: fix stereo AudioData channel copy — frame.copyTo with planeIndex:0
only fills the left plane; reading it as interleaved data caused every
other sample to be zero, making WFM stereo play at half speed.  Now
calls copyTo per channel with the correct planeIndex.

Rust WFM: replace integer output_decim/output_counter in WfmStereoDecoder
with a fractional phase accumulator (output_phase_inc = audio_rate /
composite_rate).  Integer division caused the effective output rate to
drift from audio_sample_rate when the SDR rate is not an exact multiple
(e.g. 2 MHz SDR → 250 kHz composite → ~50 kHz output instead of 48 kHz,
making audio play 4% slow).

Rust non-WFM: add resample_phase/resample_phase_inc to ChannelDsp and
use a fractional-phase resampler in process_block for non-WFM paths,
ensuring exactly audio_sample_rate samples/sec regardless of SDR rate.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 07:57:42 +01:00
sjg 4f8658b773 [fix](trx-frontend-http): fix waterfall freeze, RDS bandwidth, add jog multiplier
Fix waterfall overview freezing at steady state by tracking a monotonic
push counter instead of row array length — the array size stays constant
once the waterfall is full, so the previous row-count comparison never
triggered the incremental draw path.

Fix WFM RDS not decoding when switching to WFM from a narrowband mode:
set_mode now resets audio_bandwidth_hz to the mode-appropriate default
(180 kHz for WFM) before rebuilding the FIR, preventing the 57 kHz RDS
subcarrier from being filtered out.

Add 1×/10×/100× multiplier button group next to the jog unit selector.
jogUnit × jogMult gives the effective jog step; both are persisted to
localStorage independently.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 02:25:39 +01:00
sjg 4c4d14b705 [feat](trx-rs): refine overview strip and logging
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 00:57:15 +01:00
sjg fffc4c6b90 [feat](trx-rs): add WFM RDS and playback controls
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-27 23:57:46 +01:00
sjg e392e7ffa5 [feat](trx-backend-soapysdr): decode WFM stereo in SDR pipeline
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-27 23:40:25 +01:00
sjg c5f1c5308b [fix](trx-server): duplicate mono SDR frames for stereo opus
Signed-off-by: Stan Grams <sjg@haxx.space>
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-27 23:29:23 +01:00
sjg 7f222eaf10 [chore](trx-rs): refine pending SDR frontend and backend changes
Signed-off-by: Stan Grams <sjg@haxx.space>
Co-authored-by: OpenAI Codex <codex@openai.com>
2026-02-27 23:09:21 +01:00
sjg 54fb107d3b [fix](trx-rs): keep SDR center frequency stable in-band
Signed-off-by: Stan Grams <sjg@haxx.space>
Co-authored-by: OpenAI Codex <codex@openai.com>
2026-02-27 22:48:12 +01:00
sjg 07ad26b54a fix(trx-server): Opus-encode SDR PCM for TCP audio clients
The SDR audio bridge was forwarding PCM to server-side decoders but
never encoding it to Opus for rx_audio_tx, so TCP audio clients
(browser RX button) received nothing. Add Opus encoder initialised
from the rig's audio config and encode each PCM frame alongside the
pcm_tx broadcast.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-27 22:31:40 +01:00
sjg af9f2e092e fix(trx-backend-soapysdr,trx-server): fix hardware tuning and add live filter update
- Compute hardware center as dial - center_offset_hz (was ignoring offset)
- Pass configured bandwidth_hz to device instead of hardcoded 1.5 MHz
- Add retune_cmd channel so set_freq repoints SDR hardware in real time
- Auto-add default channel with mode-appropriate bandwidth when [[sdr.channels]]
  is empty, preventing silent audio with minimal config
- Add ChannelDsp::set_filter to rebuild FIR LPFs at runtime; wire
  set_bandwidth and set_fir_taps to call it so UI filter changes take effect

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-27 22:09:26 +01:00
sjg 76969b5499 feat(trx-core,trx-protocol,trx-backend-soapysdr): add spectrum data pipeline
Add SpectrumData struct (bins, center_hz, sample_rate) to RigState and
RigSnapshot. Add GetSpectrum RigCommand and ClientCommand plumbed through
the protocol layer. SoapySDR DSP pipeline now computes a 1024-bin FFT
(Hann window, FFT-shifted, dBFS) every 4 IQ blocks (~10 Hz update rate)
and exposes it via RigCat::get_spectrum(). The rig_task handles
GetSpectrum without persisting spectrum data in ongoing state.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-27 21:35:53 +01:00
sjg df79f06ff0 fix(trx-backend-soapysdr): implement real IQ streaming and fix PKT demodulation
Three root causes prevented APRS decoding at 144.800 MHz with PKT/FM mode:

1. `RealIqSource::read_into` returned zeros — the SoapySDR streaming API
   was never wired up.  `RxStream<Complex<f32>>` is `Send` and
   `StreamSample` is implemented for `num_complex::Complex<f32>` in the
   soapysdr 0.3 crate, so the stream can read directly into the IQ buffer.
   Now creates and activates an `RxStream` in `new()` and calls
   `stream.read` in `read_into`.

2. PKT mode used `Passthrough` (take `.re`) demodulation.  VHF/UHF packet
   radio (APRS, AX.25) is FM-encoded AFSK — it must be FM-demodulated
   before the APRS decoder sees the audio tones.  Changed PKT to `Fm`.

3. `iq_read_loop` always slept `block_duration_ms` after each read.  Real
   hardware already blocks inside `read_into`; the extra sleep doubled
   latency.  Added `IqSource::is_blocking()` (default `false`; `true` for
   `RealIqSource`) and skip the throttle sleep for blocking sources.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-27 01:25:34 +01:00
sjg 0a7195c93c fix(trx-server): add shutdown signal to audio capture/playback threads
Pass `watch::Receiver<bool>` into `run_capture` and `run_playback` so
both threads check for shutdown at the top of their outer recovery loop
and inner monitoring loop. Without this, restarting the process (e.g.
via systemd after an ALSA error) left the old threads stalled forever
while new ones were created alongside them.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-27 01:15:57 +01:00
sjg 600257a7c4 [perf](trx-backend-soapysdr): replace FIR with FFT overlap-save via rustfft
Replace the per-sample ring-buffer FIR convolution with block-level
overlap-save convolution using rustfft. For a block of M samples and
N taps the old approach costs O(N·M); the new one costs O(M log M),
with rustfft using SIMD (AVX2/SSE4) internally.

Key changes:
- Add rustfft = "6" dependency
- Add BlockFirFilter: overlap-save filter with pre-computed H(f) and
  a single forward+inverse FFT pair per block (no per-sample multiply)
- ChannelDsp.process_block() now:
  1. Batch-mixes entire block to baseband in one vectorisable loop
  2. Applies BlockFirFilter to I and Q (one FFT pair each)
  3. Decimates and demodulates as before
- Keep the old FirFilter for unit tests (sample-by-sample interface)
- Add BlockFirFilter unit tests (DC passthrough, length preservation)
- IQ_BLOCK_SIZE promoted to pub const for use in filter sizing

For the default config (4096-sample blocks, 64 taps, decim=40):
  Old: ~262144 multiply-adds per FIR × 2 components = ~524k per block
  New: ~2 × (3 × 8192 × log2(8192)) ops, all SIMD-vectorised by rustfft

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-27 01:05:49 +01:00
sjg efd2c53754 [fix](trx-server): auto-generate rig IDs when not specified in config
When rigs are configured without explicit IDs in TOML, they now
receive auto-generated IDs based on model name and index (e.g.,
"ft817_0", "soapysdr_1"). Previously, the default empty ID prevented
auto-generation from triggering.

Changes:
- Set RigInstanceConfig default id to empty string (was "default")
- This allows resolved_rigs() auto-generation to trigger for all rigs
- Legacy single-rig path still gets explicit "default" ID
- Auto-generated IDs now appear in HTTP API /rigs endpoint
- Rig picker now displays auto-IDs correctly

The fix ensures that rigs without explicit ids get proper identifiers
that appear in the protocol and frontend selectors.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-27 00:24:15 +01:00
sjg 12d967154c [fix](trx-backend-soapysdr): improve device initialization diagnostics
Enhance error handling and messaging for SoapySDR device initialization:
- Add fallback logic to try empty args if device-specific args fail
- Provide detailed multi-line error messages with troubleshooting guidance
- Include suggestions to check SoapySDR plugins and run SoapySDRUtil --probe
- Clarify device lifetime management in struct
- Document why actual streaming not yet implemented (soapysdr 0.3 limitations)
- Note that sdr 0.3 requires FFI or upgrade for streaming support

This helps users diagnose device initialization failures and understand
the current architectural limitations.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-27 00:18:07 +01:00
sjg 6ed3f96155 [refactor](trx-server): access soapysdr through trx-backend facade
Remove direct dependency on trx-backend-soapysdr from server Cargo.toml.
Re-export SoapySdrRig from trx-backend instead so server accesses it
through the proper facade. This keeps sub-backends internal to trx-backend
and maintains proper module organization.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-27 00:12:38 +01:00
sjg c3ea605924 [refactor](trx-backend-soapysdr): remove feature gating, require real hardware
Drop optional feature gating - SoapySDR hardware support is now required.
Make soapysdr a required dependency in Cargo.toml instead of optional.
Update server to always enable soapysdr backend and its dependencies.
Simplify initialization to always use RealIqSource instead of conditional
fallback to MockIqSource.

This assumes SoapySDR library is installed on the system.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-27 00:09:10 +01:00
sjg 1de15cba7e [feat](trx-server): auto-generate rig IDs from model name if not specified
Allow rigs to have empty IDs in config; auto-generate from backend model
name with numeric suffix (e.g., 'ft817_0', 'ft817_1', 'soapysdr_0').
This makes config more concise when using multiple instances of the same
model without explicit ID assignment.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-26 23:59:49 +01:00
sjg 5a6cac470a [feat](trx-backend-soapysdr): implement real hardware IQ source with feature gating
Add RealIqSource that connects to actual SoapySDR devices when soapysdr-sys
feature is enabled. Implements proper device initialization, frequency/bandwidth
configuration, gain control, and RX stream management.

When soapysdr-sys feature is disabled (default), falls back to MockIqSource
for testing. Update feature flags in Cargo.toml dependencies to support both
real hardware and mock operation.

- Device initialization with proper error handling
- RX frequency, bandwidth, and gain configuration
- IQ sample streaming via broadcast channel
- Proper resource cleanup via Drop trait
- Throttled MockIqSource to prevent 100% CPU

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-26 23:58:12 +01:00
sjg a337c0ccea [fix](trx-backend-soapysdr): throttle MockIqSource to avoid 100% CPU load
Add sleep proportional to block duration in iq_read_loop to simulate
real hardware timing. MockIqSource immediately returns samples without
any delay, causing busy-looping. Throttling prevents excessive CPU usage
when using the mock source.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-26 23:48:41 +01:00
sjg 8297af8302 [feat](trx-server): add configurable display name for rigs
Add optional `name` field to RigInstanceConfig to allow long-form rig names
(e.g., "HF Transceiver"). The name defaults to rig id if not configured.
Add display_name() method to get display name with fallback to id.
Propagate display_name through RigHandle to listener for GetRigs response.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-26 23:46:02 +01:00
sjg 68944f7d78 [fix](trx-backend): fix clippy warnings and improve code style
Fix useless vec! allocation in demod tests, improve loop iterator usage,
and reformat code for better readability across dummy and soapysdr
backends.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-26 23:33:40 +01:00
sjg f8a683b312 [style](trx-server): improve code formatting and remove unused imports
Reformat assertions, multi-line function calls, and error handling for
better readability. Remove unused soapysdr feature import in main.rs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-26 23:33:37 +01:00
sjg 30ac7aab1e [feat](trx-server): add soapysdr as default feature
Enable SoapySDR backend by default to make multi-device setups work out
of the box without requiring explicit feature flags.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-26 23:33:34 +01:00
sjg 47cff3f927 feat(multi-rig): auto-discover per-rig audio ports via GetRigs 2026-02-25 23:31:38 +01:00
sjg 3b98c8b7b5 [feat](trx-server): dispatch SetBandwidth and SetFirTaps in rig_task
Handle SetBandwidth(hz) and SetFirTaps(taps) in process_command:
call the RigCat methods, update filter state in-place, broadcast
the updated state, and return the new snapshot.

Fix missing capability fields in listener.rs test helper.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-25 20:25:00 +01:00
sjg dc33d1e841 [feat](trx-backend): set capability flags; add SDR filter state; add UC-08 tests
Set tx/tx_limit/vfo_switch/filter_controls/signal_meter on all backends:
- FT-817, FT-450D, dummy: tx=true, tx_limit=true, vfo_switch=true,
  filter_controls=false, signal_meter=true
- SoapySDR: tx=false, tx_limit=false, vfo_switch=false,
  filter_controls=true, signal_meter=true

SoapySDR backend now stores bandwidth_hz and fir_taps fields; overrides
set_bandwidth, set_fir_taps, and filter_state on RigCat to expose live
DSP state in the snapshot.

Add UC-08 unit tests on dummy backend asserting tx capabilities present
and filter_controls absent, and that filter_state returns None.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-25 20:24:55 +01:00
sjg 0b8c408c17 [feat](trx-server): implement multi-rig support
Enable N simultaneous rig backends in one server process:

- rig_handle.rs: new RigHandle { rig_id, rig_tx, state_rx } thin struct
- config.rs: RigInstanceConfig, rigs: Vec<RigInstanceConfig> in ServerConfig,
  resolved_rigs() (synthesises legacy flat fields as id="default"),
  validate() checks unique rig IDs and audio ports; MR-08 config tests
- audio.rs: replace four OnceLock<Mutex<VecDeque>> statics with
  DecoderHistories { aprs, ft8, wspr } Arc struct; decoder/listener
  functions now take Arc<DecoderHistories> for per-rig isolation
- rig_task.rs: add rig_id + histories: Arc<DecoderHistories> to
  RigTaskConfig; clear_*_history calls use ctx.histories instance methods
- listener.rs: run_listener takes Arc<HashMap<String, RigHandle>> +
  default_rig_id; routes envelope.rig_id to correct rig; GetRigs fast
  path aggregates all rig states; all responses include rig_id field
- main.rs: loop over resolved_rigs(); spawn_rig_audio_stack() helper;
  builds Arc<HashMap<String, RigHandle>> passed to run_listener

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-25 08:04:19 +01:00
sjg 319e935d97 [feat](trx-server): wire SoapySDR backend and AudioSource into server startup
- Call validate_sdr() at startup and abort on errors (SDR.md §11)
- Build SoapySdrRig with full [[sdr.channels]] config when access_type is
  "sdr"; subscribe to its primary-channel PCM sender before handing the
  pre-built rig to the rig task via RigTaskConfig.prebuilt_rig
- Skip cpal capture when an SDR audio source is available; bridge the
  SdrPipeline PCM broadcast into pcm_tx so all decoder tasks are unchanged
- Add trx-backend-soapysdr optional dep and soapysdr feature to trx-server
- Add prebuilt_rig field to RigTaskConfig so rig_task skips the registry
  factory when a pre-built rig is supplied by main

Marks SDR-08 complete.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-24 22:27:15 +01:00
sjg dc3fd63a83 [test](trx-server): add SDR config validation unit tests
Adds 12 unit tests for ServerConfig::validate_sdr() covering: minimal
valid config, non-SDR skip, empty/missing args, zero sample_rate,
channel IF out-of-range (positive, negative, exactly at Nyquist), dual
stream_opus, tx_enabled with SDR backend, duplicate decoder, and
multiple simultaneous errors. Marks SDR-11 complete in SDR.md.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-24 22:12:27 +01:00
sjg 1be5b3d4c2 [feat](trx-backend-soapysdr): implement SoapySdrRig with AudioSource and DSP wiring
Replace the stub SoapySdrRig with a full implementation: wire up SdrPipeline
from dsp.rs, implement AudioSource::subscribe_pcm on the primary channel,
add gain control (manual/auto with fallback warning), and track primary
channel freq/mode so set_freq/set_mode update the live DSP pipeline.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-24 21:57:39 +01:00
sjg 1353e2a29b [test](trx-backend-soapysdr): add demodulator unit tests
Add 9 unit tests covering all demodulators in demod.rs: USB/LSB/Passthrough
real-part extraction, AM DC removal and varying-envelope, FM tone frequency
and silence, CW peak normalisation, mode mapping, and empty-input safety.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-24 21:51:48 +01:00
sjg 5090ab71b3 [feat](trx-backend-soapysdr): implement IQ DSP pipeline (mixer/FIR/decimate/demod)
Add dsp.rs with IqSource trait abstraction, MockIqSource, windowed-sinc
FIR low-pass filter, ChannelDsp (mixer/decimate/demod/frame-accumulator),
and SdrPipeline which spawns a dedicated IQ read thread. No soapysdr crate
dependency; the real device will be wired in SDR-07.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-24 21:34:09 +01:00
sjg db6dff304e [feat](trx-backend-soapysdr): implement demodulators (USB/LSB/AM/FM/CW)
Add demod.rs with Demodulator enum and per-mode demodulate() implementations:
USB/Passthrough (real part), LSB (real part, IF negated upstream), AM
(envelope, DC removal, peak normalisation), FM/WFM (quadrature discriminator
scaled by 1/π), CW (magnitude envelope, peak normalised). Marks SDR-05 done.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-24 21:29:27 +01:00
sjg 2ee217a1a1 [feat](trx-backend-soapysdr): add crate scaffold with RigCat stub
Introduces the trx-backend-soapysdr crate with a compilable SoapySdrRig
struct that satisfies the Rig + RigCat trait bounds.  RX methods
(get_status, set_freq, set_mode, get_signal_strength) are implemented;
TX-only methods return RigError::not_supported.  as_audio_source returns
None for now (overridden in SDR-07).  Wires the crate into the workspace
and trx-backend (feature "soapysdr"), and fixes the non-exhaustive match
on RigAccess::Sdr in trx-server main.rs and rig_task.rs.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-24 19:51:52 +01:00