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feat: Pluto/AD936x SDR backend (discovery, RX, VHF band plan)

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Add ADALM-Pluto / AD9361 support as a second hardware backend alongside
openHPSDR, sharing the WDSP DSP pipeline and the existing controller API
(UI stays decoupled from logic).

- RadioBackend.pas: abstract TRadioBackend + TBackendCaps + TRadioDevice
  (Kind/URI/Serial). THPSDRNetwork now derives from it (state via virtual
  getters); TRadioController.FNetwork is the base type.
- IIOBindings.pas: dynamic libiio loader (runs without libiio present).
- PlutoBackend.pas: scan/probe-by-URI, connect, LO/rate/bandwidth/gain
  control, RX streaming thread (int16->24bit BE -> OnDDCIQ), Q conjugated
  to match WDSP IQ convention. Verified on LibreSDR (AD9361) over network.
- Unified discovery: TDiscoverThread scans both backends; network Plutos
  found via direct ProbeURI (no mDNS needed). ConnectDevice dispatches by
  Dev.Kind (EnsureBackend swaps backend, preserving callbacks).
- DeviceStore/DeviceForm: persist Kind/URI/Serial; save Pluto via
  AddSavedPluto so saved/autostart devices reconnect across restarts.
- VHF/UHF band plan (BoardUtils, kind-aware): 6m..ADS-B for Pluto; fixes
  HF clamps (band detect, mouse-wheel 60 MHz cap, freq-display max).
- SampleRateOverlay: configurable presets (Pluto 576k..5760k, >520 ksps),
  auto-width to fit.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
ew8bak
2026-06-16 18:55:20 +03:00
co-authored by Claude Opus 4.8
parent 0d82d1d8e6
commit a988849d3e
13 changed files with 1940 additions and 164 deletions
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