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Re: [b43] opensource firmware

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Michael Buesch wrote:
> Yes, please introduce a feature-bitfield at some location in SHM that's unused
> by the proprietary firmware. This bitfields would contain a bit for QoS and
> a bit for hwcrypto.
> Also change your firmware so the driver detects it as open-source firmware.
> I think that's done by writing 0xFFFF to the date/time field in SHM. I don't
> quite remember, but it's something like that.
> Note that this might mean that the firmware watchdog in the driver will trigger,
> as that's enabled by the open-source-firmware-flag. We might want to temporarly
> disable the watchdog in the driver for the time being.

I like the idea of encoding the capabilities in the firmware as it
would be a self-documenting method as the firmware evolves.

Is using the Broadcom names for the firmware the best course of
action? What if the opensource firmware files were named something
like "os-ucode5.fw", etc. and b43 were coded to check for those files
first? It would then fall back to the standard firmware if the
opensource version is not found.

Larry

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