Re: b43 vs b43legacy

[matthieu castet <castet.matthieu@free.fr>]

Larry Finger wrote:
> Matthieu CASTET wrote:
>> what's the difference between b43 and b43legacy ?
>>
>> >From a first point a view, it seems b43 is for core >= 5 and b43legacy for the
>> other.
>> There is also firmware difference : b43 need v4 and b43legacy need v3.
> 
> The firmware difference is the primary one.
> 
>> But v4 firmware seems to support core 4 (pcm4 & ucode4) and b43 code got some
>> support for old chips (<5).
> 
> The Broadcom V4 drivers do have core 4 firmware embedded in them and it is
> extracted by b43-fwcutter; however, b43 will _NOT_ work with core 4 chips. The
> firmware loader will only find firmware for core 5 and later.
Ok but what prevent b43 to support core 4 chip with v4 firmware like the 
broadcom driver does ?
I am aware that the current driver doesn't support it, but what are the 
missing part to support it ?

If it is the difference from core4 from newer chip, why b43legacy 
contains only few special case for core4 chip.

> 
> I suspect that any residual code for older chips left in b43 was missed. If you
> want to prepare patches to remove such code, please do.
Yes, I could prepare such patches

Thanks

Matthieu

PS : I don't have core 4 chip nor plan to get some, I ask this out of 
curiosity.