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8814: run PHY_SwitchWirelessBand8814A at initial band-set (fixes 5GHz RX, #51) #93

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Merged
josephnef merged 1 commit into from
Jun 10, 2026
+14 −4
Merged

8814: run PHY_SwitchWirelessBand8814A at initial band-set (fixes 5GHz RX, #51) #93

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16 changes: 13 additions & 3 deletions src/HalModule.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -360,10 +360,20 @@ bool HalModule::rtl8812au_hal_init(uint8_t init_channel) {
* deadlocked on libusb_control_transfer until SIGKILL. See kaeru
* cite "8821AU ch100 wedge — confirmed second-channel-set is the
* trigger, not band-switch 2026-06-02". */
if (init_channel <= 14) {
_radioManagementModule->PHY_SwitchWirelessBand8812(BandType::BAND_ON_2_4G);
const BandType init_band = (init_channel <= 14) ? BandType::BAND_ON_2_4G
: BandType::BAND_ON_5G;
if (_eepromManager->version_id.ICType == CHIP_8814A) {
/* 8814 has a separate band-switch (path-C/D RFE pinmux via
* phy_SetRFEReg8814A, the 8814 AGC-table register, CCK clock-gate
* cycle). Running the 8812 version here marks the band already-set
* (CCK check 0x454) so phy_SwBand8812's later dispatch SKIPS the 8814A
* switch — leaving the 5G RFE pinmux (0xCB0/.../path-C-D) and RX config
* unprogrammed. Mirror the dispatch in phy_SwBand8812 so the initial
* band-set runs the correct per-chip sequence (issue #51, confirmed via
* kernel-vs-devourer usbmon register diff). */
_radioManagementModule->PHY_SwitchWirelessBand8814A(init_band);
} else {
_radioManagementModule->PHY_SwitchWirelessBand8812(BandType::BAND_ON_5G);
_radioManagementModule->PHY_SwitchWirelessBand8812(init_band);
}

_radioManagementModule->rtw_hal_set_chnl_bw(
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2 changes: 1 addition & 1 deletion src/RadioManagementModule.h
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Original file line number Diff line number Diff line change
Expand Up @@ -192,6 +192,7 @@ class RadioManagementModule {
void rtw_hal_set_chnl_bw(uint8_t channel, ChannelWidth_t Bandwidth,
uint8_t Offset40, uint8_t Offset80);
void PHY_SwitchWirelessBand8812(BandType Band);
void PHY_SwitchWirelessBand8814A(BandType Band);
void SetTxPower(uint8_t p);

private:
Expand All @@ -211,7 +212,6 @@ class RadioManagementModule {
void phy_SetRFEReg8812(BandType Band);
void phy_SetRFEReg8821(BandType Band);
void phy_SetRFEReg8814A(BandType Band);
void PHY_SwitchWirelessBand8814A(BandType Band);
void phy_SetBwRegAdc_8814A(BandType Band, ChannelWidth_t bw);
void phy_SetBwRegAgc_8814A(BandType Band, ChannelWidth_t bw);
void phy_SetBBSwingByBand_8812A(BandType Band);
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