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fix(radio): keep the radio serviced while an e-ink refresh blocks the loop

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GxEPD2 polls the panel's BUSY pin for the whole refresh (up to ~1-2s),
stalling the main loop. A TX finishing in that window left the SX126x in
standby -- deaf -- until the refresh ended; packets received meanwhile could
be lost (only the latest is readable, and a later CRC failure rejects a good
one still pending). Hook GxEPD2's busy callback to finish TX / drain RX into
a small staging queue and re-arm right away, without touching dispatch/UI.
Wired only where the display driver supports it (GxEPD2: the two e-ink Solo
boards); OLED and sim builds are unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Jakub
2026-09-24 15:21:38 +02:00
co-authored by Claude Opus 5.5
parent 81cee3846f
commit 22eba3c244
13 changed files with 184 additions and 16 deletions
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src/helpers/radiolib/CustomSX1276Wrapper.h
+2 -2
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@@ -25,8 +25,8 @@ public:
float getCurrentRSSI() override {
return ((CustomSX1276 *)_radio)->getRSSI(false);
}
float getLastRSSI() const override { return ((CustomSX1276 *)_radio)->getRSSI(); }
float getLastSNR() const override { return ((CustomSX1276 *)_radio)->getSNR(); }
float readLiveRSSI() const override { return ((CustomSX1276 *)_radio)->getRSSI(); }
float readLiveSNR() const override { return ((CustomSX1276 *)_radio)->getSNR(); }
float packetScore(float snr, int packet_len) override {
int sf = ((CustomSX1276 *)_radio)->spreadingFactor;