linux-toradex.git/drivers/net/wireless/rt2x00/rt2x00lib.h, branch v3.5.1

rt2x00: Use GFP_KERNEL for rx buffer allocation on USB devices

2012-04-23T19:35:29+00:00

Since the RX path on USB devices is handled in process context we can
use GFP_KERNEL for RX buffer allocation. This should reduce the
likelihood of allocation failures.

Signed-off-by: Helmut Schaa 
Acked-by: Gertjan van Wingerde 
Tested-By: Marc Dietrich 
Signed-off-by: John W. Linville

rt2x00:Add VCO recalibration

2012-02-27T19:05:44+00:00

Signed-off-by: John Li 
Acked-by: Gertjan van Wingerde 
Acked-by: Ivo van Doorn 
Signed-off-by: John W. Linville

rt2x00: Fix compilation without CONFIG_RT2X00_LIB_CRYPTO

2011-08-02T17:48:14+00:00

This was introduced by commit
77b5621bac4a56b83b9081f48d4e7d1accdde400 (rt2x00: Don't use queue entry
as parameter when creating TX descriptor.)

Signed-off-by: Helmut Schaa 
Acked-by: Gertjan van Wingerde 
Acked-by: Ivo van Doorn 
Reported-by: Randy Dunlap 
Acked-by: Randy Dunlap 
Signed-off-by: John W. Linville

rt2x00: Don't use queue entry as parameter when creating TX descriptor.

2011-07-07T17:20:58+00:00

The functions that create the tx descriptor structure do not operate on
a queue entry at all. Signal this fact in the code by not providing a
queue entry as a parameter, but the rt2x00 device structure and the skb
directly.

This patch is a preparation for reducing the time a queue is locked for
a tx operation.

Signed-off-by: Gertjan van Wingerde 
Acked-by: Helmut Schaa 
Signed-off-by: Ivo van Doorn 
Signed-off-by: John W. Linville

rt2x00: Merge rt2x00ht.c contents in other files.

2011-04-19T19:39:56+00:00

The two functions that are in rt2x00ht.c can be much better placed
closer to the places where the call-sites of these functions are (one
in rt2x00config.c and one in rt2x00queue.c) allowing us to make these
functions static.
Also, conditional compilations doesn't seem to be necessary anymore as
802.11n support is quite common nowadays.

This makes the code a bit easier readable and searchable.

Signed-off-by: Gertjan van Wingerde 
Signed-off-by: Ivo van Doorn 
Signed-off-by: John W. Linville

rt2x00: fix queue timeout checks

2011-04-19T19:39:30+00:00

Add a timestamp to each queue entry which is updated whenever
the status of the entry changes, and remove the per-queue
timestamps.  The previous check was incorrect and caused both
false positives and false negatives.

With the corrected check it comes apparent that the TX status
usually times out on rt2800usb unless there is sufficient traffic
(i.e. the next TX will complete the previous TX status).

Signed-off-by: Johannes Stezenbach 
Signed-off-by: Ivo van Doorn 
Signed-off-by: John W. Linville

rt2x00: Split rt2x00dev->flags

2011-04-19T19:39:11+00:00

The number of flags defined for the rt2x00dev->flags field,
has been growing over the years. Currently we are approaching
the maximum number of bits which are available in the field.

A secondary problem, is that one part of the field are initialized only
during boot, because the driver requirements are initialized or device
requirements are loaded from the EEPROM. In both cases, the flags are
fixed and will not change during device operation. The other flags are
the device state, and will change frequently. So far this resulted in the fact
that for some flags, the atomic bit accessors are used, while for the others
the non-atomic variants are used.

By splitting the flags up into a "flags" and "cap_flags" we can put all flags
which are fixed inside "cap_flags". This field can then be read non-atomically.
In the "flags" field we keep the device state, which is going to be read atomically.

This adds more room for more flags in the future, and sanitizes the field access methods.

Signed-off-by: Ivo van Doorn 
Acked-by: Helmut Schaa 
Signed-off-by: John W. Linville

rt2x00: Implement tx power temperature compensation

2011-04-04T20:20:03+00:00

rt2800 devices should adjust their tx power in accordance with the
eeproms temperature calibration values. Add a new driver callback
gain_calibration that is called every 4 seconds.

The rt2800 gain calibration routine simply runs the tx power
configuration that takes care of calculating the temperature
compensation delta.

We don't need to synchronize the calls to rt2800_config_txpower
as they should all happen from mac80211's single threaded workqueue.

Signed-off-by: Helmut Schaa 
Signed-off-by: Ivo van Doorn 
Signed-off-by: John W. Linville

rt2x00: Remove obsolete rt2x00queue_align_payload

2011-04-04T20:20:03+00:00

Since commit d1c3a37ceeb1a5ea02991a0476355f1a1d3b3e83 ("mac80211:
clarify alignment docs, fix up alignment") removed the requirement
for a 4-byte aligned payload rt2x00queue_align_payload is obsolete
as mac80211 will align the payload when it passes the frame to the
net stack.

As a result we can remove the call to rt2x00queue_align_payload in the
rx path and since that's the last user we can remove
rt2x00queue_align_payload altogether.

One advantage is that we save some alignment operations for frames
that don't need to be aligned (for example beause they are not passed
to the net stack).

Signed-off-by: Helmut Schaa 
Signed-off-by: Ivo van Doorn 
Signed-off-by: John W. Linville

rt2x00: Introduce beacon_update_locked that requires caller locking

2011-01-31T20:06:22+00:00

Introduce a beacon_update_locked function that does not acquire the
according beacon mutex to allow beacon updates from atomic context. The
caller has to take care of synchronization.

No functional changes. Just preparation for beacon updates from tasklet
context.

Signed-off-by: Helmut Schaa 
Acked-by: Gertjan van Wingerde 
Signed-off-by: Ivo van Doorn 
Signed-off-by: John W. Linville