Add firmware update support: gRPC check, OSS download, GAIA BT delivery (VR-N76 tested)#25
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repins267 wants to merge 15 commits into
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Add firmware update support: gRPC check, OSS download, GAIA BT delivery (VR-N76 tested)#25repins267 wants to merge 15 commits into
repins267 wants to merge 15 commits into
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- firmware.py: gRPC check_update (rpc.benshikj.com:800, benshikj.APP/CheckUpdate) - firmware.py: download_firmware (OSS patch + base zip, bsdiff4 assembly) - firmware.py: FirmwareBundle with md5_tail for UPDATE_SYNC_REQ - scripts/test_firmware.py: dry-run test, verified against captured v0.9.3-7 patch md5: 878b35b8e06d3465484ea0ace669de62 base md5: 74b6d097d8d2d9d2d9fac88133198a08 firmware md5: 0c0d095da50bebe664822adcb244834a md5_tail: b244834a OSS URLs (v147): patch: .../firmware/v147/patch_base_to_vr_n76.bin base: .../upgrade_base_v1.bin.zip Closes layers 1+2. Layer 3 (GAIA BT delivery via VM RFCOMM UUID 00001107-D102-11E1-9B23-00025B00A5A5) is next.
Implements the VM_CONTROL state machine for flashing assembled firmware over the existing RFCOMM command connection: Phase 1 (transfer): VM_CONNECT -> UPDATE_SYNC_REQ -> UPDATE_START_REQ -> UPDATE_DATA_START_REQ -> [device-driven chunk loop via UPDATE_DATA_BYTES_REQ] -> UPDATE_IS_VALIDATION_DONE_REQ -> UPDATE_TRANSFER_COMPLETE_RES (radio reboots) Phase 2 (confirm, after reconnect): VM_CONNECT -> UPDATE_SYNC_REQ -> UPDATE_START_REQ (GOTO_NEXT_STATE) -> UPDATE_IN_PROGRESS_RES -> UPDATE_COMPLETE_IND -> VM_DISCONNECT Key design notes: - Works over the existing RFCOMM command channel (no separate socket) - VMU_PACKET replies arrive as BT_EVENT_NOTIFICATION (ExtendedCommand 16387) - Chunk size is device-driven via n_bytes_requested; n_bytes_skip supports resume - Best-effort UPDATE_ABORT_REQ sent on error - Tested with VR-N76 V0.9.3-7 firmware (md5_tail: b244834a) Companion to firmware.py (layers 1+2: gRPC check + OSS download + bsdiff4 assemble) Refs: benlink issue khusmann#10
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Implements firmware update across three layers for the VR-N76 (and likely other Benshi radios):
firmware.py— Layer 1 (gRPC check viabenshikj.APP/CheckUpdate) + Layer 2 (OSS download + bsdiff4 assembly). Standalone-importable without bleak.firmware_updater.py— Layer 3:FirmwareUpdaterstate machine for GAIA BT delivery over the existing RFCOMM command connection.scripts/test_firmware.py— dry-run test (--local,--check,--fullmodes)Layers 1+2 verified against V0.9.3-7 firmware (all MD5s match).
Layer 3 structurally complete; live radio test pending.
Refs: #10