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Commit Graph

20 Commits

Author SHA1 Message Date
Michael Buesch
7b58416397 b43: Add more N-PHY stuff
This adds some minor stuff for N-PHY support. Nothing special.
Adds Analog switching and some TODOs for RSSI processing.
Just a patch I had floating around for quite some time now.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-08 16:44:41 -04:00
Michael Buesch
5100d5ac81 b43: Add PIO support for PCMCIA devices
This adds PIO support back (D'oh!) for PCMCIA devices.
This is a complete rewrite of the old PIO code. It does actually work
and we get reasonable performance out of it on a modern machine.
On a PowerBook G4 I get a few MBit for TX and a few more for RX.
So it doesn't work as well as DMA (of course), but it's a _lot_ faster
than the old PIO code (only got a few kBit with that).

The limiting factor is the host CPU speed. So it will generate 100%
CPU usage when the network interface is heavily loaded. A voluntary preemption
point in the RX path makes sure Desktop Latency isn't hurt.

PIO is needed for 16bit PCMCIA devices, as we really don't want to poke with
the braindead DMA mechanisms on PCMCIA sockets. Additionally, not all
PCMCIA sockets do actually support DMA in 16bit mode (mine doesn't).

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-08 15:05:56 -04:00
Michael Buesch
e6f5b934fb b43: Add QOS support
This adds QOS support to the b43 driver.
QOS can be disabled on driver level with a module parameter for debugging purposes.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-07 16:02:59 -05:00
Johannes Berg
d007b7f42e b43(legacy): include full timestamp in beacon frames
Having the full RX timestamp in beacons is necessary for IBSS
merge to work properly so extend the 16-bit timestamp to the
full 64 bits for beacon frames (as well as when monitor mode
is active.)

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29 15:37:12 -05:00
Johannes Berg
8318d78a44 cfg80211 API for channels/bitrates, mac80211 and driver conversion
This patch creates new cfg80211 wiphy API for channel and bitrate
registration and converts mac80211 and drivers to the new API. The
old mac80211 API is completely ripped out. All drivers (except ath5k)
are updated to the new API, in many cases I expect that optimisations
can be done.

Along with the regulatory code I've also ripped out the
IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag, I believe it to be
unnecessary if the hardware simply gives us whatever channels it wants
to support and we then enable/disable them as required, which is pretty
much required for travelling.

Additionally, the patch adds proper "basic" rate handling for STA
mode interface, AP mode interface will have to have new API added
to allow userspace to set the basic rate set, currently it'll be
empty... However, the basic rate handling will need to be moved to
the BSS conf stuff.

I do expect there to be bugs in this, especially wrt. transmit
power handling where I'm basically clueless about how it should work.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29 15:19:32 -05:00
Michael Buesch
09552ccd82 b43: Drop packets that we are not able to encrypt
We must not transmit packets we're not able to encrypt.

This fixes a bug where in a tiny timeframe after machine resume
packets can get sent unencrypted and might leak information.

This also fixes three small resource leakages I spotted while fixing
the security problem. Properly deallocate the DMA slots in any DMA
allocation error path.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31 19:26:45 -08:00
Michael Buesch
7be1bb6b79 b43: Fix suspend/resume
This fixes suspend/resume.

We must not overwrite the MAC addresses on resume. Otherwise
the card won't ACK any packets anymore.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31 19:26:45 -08:00
Michael Buesch
eb189d8bc9 b43: Add support for new firmware
This patch adds support for new firmware.
Old firmware is still supported until July 2008.

To get new firmware, go to
ftp://ftp.linksys.com/opensourcecode/wrt150nv11/1.51.3/
and download the tarball. We don't have a smaller tarball, yet.
That will be fixed later.
You can extract firmware out of the "wl_ap.o" file contained
in this tarball using latest fwcutter. You must pass the option
--unsupported to fwcutter.
Fwcutter-010 with official support for a new firmware image will
be released soon.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:09:50 -08:00
Johannes Berg
32bfd35d4b mac80211: dont use interface indices in drivers
This patch gets rid of the if_id stuff where possible in favour of
a new per-virtual-interface structure "struct ieee80211_vif". This
structure is located at the end of the per-interface structure and
contains a variable length driver-use data area.

This has two advantages:
 * removes the need to look up interfaces by if_id, this is better
   for working with network namespaces and performance
 * allows drivers to store and retrieve per-interface data without
   having to allocate own lists/hash tables

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:09:36 -08:00
Michael Buesch
03b29773b6 b43: Remove PIO support
Remove b43 PIO support.
DMA works well on all supported devices. There's no reason to use PIO.
Additionally, new devices don't support PIO in hardware anymore.
b43 PIO support is dead and unused code.

After applying this patch please do
git rm drivers/net/wireless/b43/pio.h
git rm drivers/net/wireless/b43/pio.c
to remove the main PIO support code.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:09:17 -08:00
Michael Buesch
9db1f6d725 b43: Only select allowed TX and RX antennas
This fixes antenna selection in b43. It adds a sanity check
for the antenna numbers we get from mac80211.

This patch depends on
ssb: Fix extraction of values from SPROM

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:09:14 -08:00
John W. Linville
c0ddd04d55 wireless: cleanup some merge errors
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:08:45 -08:00
Johannes Berg
d8be11ee95 b43: include FCS in frames handed to mac80211
Sometimes it can be useful to see the FCS, especially when
bad-FCS frames are shown. Pass the FCS to mac80211 and let
it worry about snipping it off when required.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:05:00 -08:00
Larry Finger
95de2841aa b43: Convert to use of the new SPROM structure
The b43 driver is modified to use the new SPROM structure.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:04:42 -08:00
Stefano Brivio
1f21ad2a4f b43/b43legacy: fix my copyright notices
Fix my copyright notices in b43 and b43legacy.

Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Cc: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:04:31 -08:00
Michael Buesch
74cfdba7ce b43: Use the retry limit parameters from mac80211
Use the limits provided by mac80211.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:03:30 -08:00
Johannes Berg
03bffc1341 wireless: make drivers include the TSF RX flag where appropriate
These drivers pass full mactime information to the stack, make them
indicate this via the new RX_FLAG_TSFT to get mac80211 to show this
information in monitor mode.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 14:58:26 -08:00
Michael Buesch
d987160b71 b43: Fix rxheader channel parsing
This patch fixes the parsing of the RX data header channel field.

The current code parses the header incorrectly and passes a wrong
channel number and frequency for each frame to mac80211.
The FIXMEs added by this patch don't matter for now as the code
where they live won't get executed anyway. They will be fixed later.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-08 23:30:06 -08:00
Michael Buesch
1a09404a23 [B43]: Fix sparse warnings.
The remaining warning in phy.c will be fixed later.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:52:07 -07:00
Michael Buesch
e4d6b79518 [B43]: add mac80211-based driver for modern BCM43xx devices
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:37 -07:00