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Shen Mintao
d59217c143
Follow up issue #117: use each module chip enum and the real Wi-Fi device, preserve flat-layout fallback on missing files, and handle allocation and size failures. Based on the report by ggorbi99-dev.
32 lines
1.6 KiB
Markdown
32 lines
1.6 KiB
Markdown
# Firmware loading regression checks
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Run `python3 tests/firmware/test_request_firmware.py` with a C compiler available.
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The fixture extracts both modules' real request and load functions and the
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Wi-Fi common caller. It checks all USB chip directory mappings, device context,
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flat-layout fallback only on `-ENOENT`, missing device data, non-USB/platform
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behavior, path overflow, invalid file sizes, and allocation failure. Kernel
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services are mocked; this does not exercise firmware startup or hardware.
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`python3 tests/firmware/test_firmware.py --modules BUILD_DIR` also checks the
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installed inventory against the built modules' firmware declarations and the
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loader's probe error paths.
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For a kernel build with the firmware API enabled:
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```sh
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bash tests/kernel-build/build.sh /path/to/kernel/build CC=gcc-14 CONFIG_USE_FW_REQUEST=y
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```
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The build default remains `CONFIG_USE_FW_REQUEST=n`. The `y` path searches the
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kernel firmware locations using chip-relative names such as
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`aic8800D80/fmacfw_8800d80_u02.bin`, then tries the bare name if the chip-relative
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file is absent. The two modules use different chip ID enums; their mappings
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must remain separate. Both retain the real USB device as the request context.
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Custom absolute `aic_fw_path` directories belong to the existing `n` path;
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the `y` path uses the kernel firmware search configuration instead.
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Related: [issue #117](https://github.com/shenmintao/aic8800d80/issues/117).
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The path correction follows ggorbi99-dev's report, with the operational-driver
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IDs and its previously null device argument corrected as well. It complements
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the initramfs declarations; it does not establish the reporter's cold-boot fix.
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