On Jan 15, 2009, at 4:59 PM, Larry Finger wrote: > 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 It could be interesting to also not separate the initvalues in two different files, everything could be coded in a single file. Never understood why original init values are split in two files.
Michael: SHM(0x0014) (16bit) is not used by the open source firmware, I know the b43 reads core revision from SHM(0x0016). Normally SHM(0x0014) is set to zero. We can put fw capabilities here (0x0014), e.g.: - bit 0: [0 state that encryption should be handled by b43] - bit 1: [0 state that qos is not supported] We can prepare a firmware image with such feature + watchdog. Posting ASAP with new initvals (less values). A question: is the standard kernel aware that date set to FFFF indicates an opensource firmware or some define should be activated on compilation? Cheers, -FG _______________________________________________ Bcm43xx-dev mailing list [email protected] https://lists.berlios.de/mailman/listinfo/bcm43xx-dev
