[PATCH RFC wireless-next 0/3] wifi: b43: core revision 40 and 42 MAC setup (series 2/4)

[Andreas Wendleder <gonsolo@gmail.com>]

MAC core support for the BCM4352/BCM4360 core revisions 40 and 42. Things
that depend on the core revision are gated on it (b43_is_ac_core()),
things that depend on the microcode layout are gated on the microcode
revision (b43_ucode_is_ac(), revision 784 and above, set once the
microcode is loaded). The TX and RX formats and the PHY are not in this
series. Based on series 1/4.

This is posted as RFC so that people with these chips can use and test
it now; b43 is orphaned and nobody is set to take these patches at the
moment. Series 1/4 is on the list:
https://lore.kernel.org/linux-wireless/20261014143225.82149-1-gonsolo@gmail.com/

Where the values come from: the register sequences and table contents were
taken from Broadcom's wl driver running on this MacBook, by tracing its
register accesses (bpftrace on wl's MMIO accessors), and reduced to what
the hardware needs. Parts come from Alessio Ferri's AC-PHY work (the PHY
init sequence, the 40 and 80 MHz coefficient tables, a TX gain table, the
Farrow resampler formula, the VHT fields of the TX descriptor, register
and table names), and some formats follow brcmsmac.
The result was tested on the hardware as described below.

Each patch compiles on its own (kernel 7.2.10 headers). The four series
together were run on a MacBookAir6,1 (14e4:43a0, BCM4360, core revision 42,
microcode 832.127, 2 of 3 chains wired) on top of v7.3-rc5's b43. The AC PHY
only comes with series 4, so the earlier series cannot be exercised on this
hardware alone.

Andreas Wendleder (3):
  wifi: b43: set the DMA burst and prefetch bits of core revisions 40
    and 42
  wifi: b43: MAC core setup for core revisions 40 and 42
  wifi: b43: address match table, templates and beacons for the AC
    microcode

 drivers/net/wireless/broadcom/b43/b43.h  |  14 ++
 drivers/net/wireless/broadcom/b43/dma.c  |   4 +
 drivers/net/wireless/broadcom/b43/dma.h  |   2 +
 drivers/net/wireless/broadcom/b43/main.c | 242 +++++++++++++++++++++--
 4 files changed, 246 insertions(+), 16 deletions(-)