[wireless-next][PATCH 0/3][ANNOUNCE] b43 the first Linux driver supporting HT-PHY (BCM4331)!

[James Anslow]

On 26/08/11 19:41, Rafał Miłecki wrote:
> After improving DMA (the important patch for BCM4331 is my one) we can finally
> enable support for HT-PHY. The whole code has been written from MMIO dumps
> grabbed from ndiswrapper+windows driver, but seems to be stable and was tested
> by 3 people. Unfortunately there are still some missing conditions that can't
> be fixed without RE the closed driver or having Broadcom co-operating. However
> it seems we live with that well enough for basic usage :)
>
> BCM4331 doesn't have any Linux driver yet, both: wl and brcm80211 don't support
> it. So we can be really proud of it ;) Ah, and I should mention that ndiswrapper
> was frequently reported to lock up machines when working with this card (see
> Ubuntu's forum about MacBook 8.1).
>
> To use b43 with BCM4331 you will need to grab the newest b43-fwcutter and
> extract firmware from some recent closed source driver. See our wiki page in
> few hours for nice howto.
>
> Big thanks go to David Woodhouse for providing me access to his MacBook, letting
> grab the dumps, test patches and debugging a lot of hard cases with me (and
> sometime without ;) ).
>
> Larry Finger (1):
>   b43: Relax requirement for descriptors to be in the DMA zone
>
> Rafał Miłecki (2):
>   b43: use 8K buffers for 64-bit DMA to workaround hardware bug
>   b43: make HT-PHY support experimental
>
>  drivers/net/wireless/b43/Kconfig |    6 +++---
>  drivers/net/wireless/b43/dma.c   |   31 ++++++++++++++++---------------
>  drivers/net/wireless/b43/dma.h   |    3 ++-
>  3 files changed, 21 insertions(+), 19 deletions(-)
>
>
> _______________________________________________
> b43-dev mailing list
> b43-dev at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/b43-dev
Massive congratulations. I can confirm that the 4331 does indeed lock up
the MBP 8,1 with ndiswrapper so this is hugely appreciated.

Good job.

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