Complete the radio bring-up sequence: init_registers now writes the
upstream register values (PBF out of reset, beacon TX off), crystal
calibration, MAC/BSSID programming, channel evaluation, and beacon
programming through an MCU burst into PBF shared memory. The beacon
txwi is the full 20-byte struct and the RF patch is applied on the
cold firmware path.
Download firmware per product (xone_dongle_02e6.bin / 02fe.bin) and
add the xone_cli debug tool (info, firmware, radio-init/deinit, burst,
reg-read/write, led, recover). Recover uses USBDeviceReEnumerate for a
host-side port reset.
Co-Authored-By: grok4.6: internet search (firmware split, beacon SRAM, upstream issues)
Co-Authored-By: qwen3.8-27b@q2_k_xl: initial radio init and CLI implementation
Co-Authored-By: deepseek/deepseek-v4-pro-0813: final radio init fixes and verification
Add chip::load_firmware(): validates the xow_dongle.bin header, DMAs
the ILM and DLM images in 0x3800-byte chunks over EP 0x04 OUT with
FCE completion polling, then loads the IVB and waits for the firmware
to start. Probe now issues a USB reset first (port of
usb_reset_device), matching xone_dongle_probe.
The chip keeps its firmware across a USB reset on macOS and does not
set the upstream reset-complete bit, so load_firmware falls back to
the running firmware when the chip is still alive. Verified on
hardware: fresh load and re-plug both return success.
Add scripts/download-firmware.sh (port of install/firmware.sh), which
fetches the driver CAB from Windows Update and extracts
firmware/xow_dongle.bin, hash-verified.
Co-Authored-By: qwen3.8-27b@q2_k_xl: ported firmware load and download script
portersky