linux-toradex.git/drivers/net/wireless/rt2x00/rt2x00config.c, branch v2.6.38

rt2x00: Fix pointer errors.

2011-01-04T19:35:14+00:00

Fix some pointer errors in the various calls to memcpy, memset and memmove.

Although none of these errors are fatal (the expression used now results in
the same pointer value) it is better to use the proper expression.
All errors are having to deal with arrays.

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

rt2x00: Protect queue control with mutex

2010-12-13T20:23:35+00:00

Add wrapper functions in rt2x00queue.c to
start & stop queues. This control must be protected
using a mutex.

Queues can also be paused which will halt the flow
of packets between the driver and mac80211. This doesn't
require a mutex protection.

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

rt2x00: Reorganize queue callback functions

2010-12-13T20:23:35+00:00

As part of the queue refactoring, change the queue callback
function names to have 3 different actions: start, kick & stop.

We can now also remove the STATE_RADIO_RX_ON/STATE_RADIO_RX_OFF
device_state flags, and replace the usage with using the
start_queue/stop_queue callback functions.
This streamlines the RX queue handling to the
similar approach as all other queues.

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

rt2x00: Remove rt2x00lib_toggle_rx

2010-11-15T18:26:35+00:00

As part of the queue refactoring, the rt2x00lib_toggle_rx
can be removed and replaced with the call directly to
the set_device_state callback function.

We can remove the STATE_RADIO_RX_ON_LINK and
STATE_RADIO_RX_OFF_LINK, as it was only used for
special behavior inside rt2x00lib rather then the
drivers.

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

rt2x00: checkpatch.pl error fixes for rt2x00config.c

2010-11-15T18:26:24+00:00

rt2x00config.c:136: ERROR: space required before the open parenthesis '('

Signed-off-by: Mark Einon 
Signed-off-by: Ivo van Doorn 
Signed-off-by: John W. Linville

rt2x00: Implement HT protection for rt2800

2010-10-05T17:35:26+00:00

Update the HT operation mode when mac80211 sends it to us and set
the different HT protection modes and rates accordingly. For now
only use CTS-to-self with OFDM 24M or CCK 11M when protection is
required.

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

rt2x00: Check for specific changed flags when updating the erp config

2010-09-14T20:03:43+00:00

Previously rt2x00 was always updating all erp related config variables
even though mac80211 might only have changed one. Hence, pass the
changed flags to the config_erp driver callback so that the driver
can limit the changes to the correct values.

This fixes an issue in AP mode where the beacon interval is not
initialized (and thus zero) but still sent to the hardware causing an
interrupt storm on rt2800pci hanging the system.

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

rt2x00: Antenna diversity does not work in 2.6.35

2010-09-14T20:03:43+00:00

The test if antenna diversity is at all enabled uses a local variable
'flags' to prepare the test condition, but uses 'ant->flags' when the test
is evaluated. The effect is that the diversity evaluation will never start.
I can see two solutions, use the 'flag' in the test condition or revert the
local flag change. My attached patch took alternative two.

Then the evaluation start but it will still not switch antenna. The problem
is a code section in rt2x00lib_config_antenna (). The effect of that code
section is that any change the diversity function perform will be
effectively shorten and no antenna selection command issued. The attached
patch will filter out any ANTENNA_SW_DIVERSITY setting but forward all
other

Signed-off-by: Lars Ericsson 
Signed-off-by: Ivo van Doorn 
Signed-off-by: John W. Linville

rt2x00: Remove ieee80211_rx_status from rt2x00_dev

2010-08-16T19:26:43+00:00

rt2x00 was keeping a copy of ieee80211_rx_status embedded
into the rt2x00_dev structure. For each RX frame, this structure
was copied into the skb->cb where mac80211 would handle it further.

However at the moment only the fields current band, and frequency
were updated. Whereas the band was already provided directly within
the rt2x00_dev structure. Save a memcpy action, and reduce memory
a bit, by adding a curr_freq field to rt2x00_dev, and completely
remove the ieee80211_rx_status structure from rt2x00_dev.

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

rt2x00: do not shortcut rt2x00lib_config_antenna

2010-08-16T19:23:42+00:00

This function was exiting early if the existing diversity settings
were unchanged.  Unfortunately, in some cases the antenna configuration
is not initialized at all.

https://bugzilla.kernel.org/show_bug.cgi?id=14751

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