Commit Graph

167423 Commits

Author SHA1 Message Date
Juuso Oikarinen
a163acce48 wl1271: Remove unnecessary rx_descriptor memory allocation
Remove unnecessary RX descriptor memory allocation from the driver. The
allocation was a remnant of the wl1251 driver.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:15 -04:00
Juuso Oikarinen
01c09162cd wl1271: Support for IPv4 ARP filtering
Add support for IPv4 ARP filtering in the driver. This will dramatically
reduce the number of unnecessary interrupts by the device in conqested
networks.

This patch is based on a similar patch to wl1251 by Janne Ylälehto.

Cc: Janne Ylälehto <janne.ylalehto@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:14 -04:00
Juuso Oikarinen
1fd2794f36 wl1271: Fix event handling mechanism
The event handling mechanism could miss events if multiple events would
occur simultaneously. Fix event handling mechanism to process all
events.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:11 -04:00
Juuso Oikarinen
7444113017 wl1271: Fix multicast list handling
Fixes bugs in the multicast list handling:
 - Use atomic memory allocation in non-sleepable context
 - Increment address pointer when iterating list of MC addresses

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:11 -04:00
Teemu Paasikivi
5d07b668f2 wl1271: Checking of rx descriptor status fixed
Fixed checking of status of the received packet. On wl1251 status is in the
flags field of the descriptor, on wl1271 there is a separate status field.

Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:11 -04:00
Teemu Paasikivi
a410264553 wl1271: Added 5 GHz support to join and rx
Added support to assiociate and use connection on 5 GHz band (802.11a).

Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:11 -04:00
Teemu Paasikivi
abb0b3bfb2 wl1271: Added support to scan on 5 GHz band
Added support to scan 802.11a access points on 5 GHz band when using
wl1273 chip.

Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:10 -04:00
Teemu Paasikivi
311494c47f wl1271: Scan only enabled channels
Added checking of whether channel is enabled or disabled by mac80211
stack to scan. Disabled channels are not scanned.

Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:10 -04:00
Teemu Paasikivi
1ebec3d750 wl1271: Added 5 GHz parameters for wl1273
Added data rate and frequency tables for 5 GHz band channels, 5
GHz radio configration parameters and configuration option to enable
802.11 support.

Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:10 -04:00
Juuso Oikarinen
c6d5d06e45 wl1271: Remove busy-word checking
Remove busy-word checking to work around an SPI bug. To reduce the
chance of chipset-busy scenarios, increment the number of fixed busy
words.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:10 -04:00
Juuso Oikarinen
11f70f9715 wl1271: Implement beacon early termination support
Add support to enable beacon early termination in the firmware. Early
Beacon termination is a feature which allows the radio to be turned off
after TIM IE to save power.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:09 -04:00
Juuso Oikarinen
eb5b28d021 wl1271: Fix IRQ enable handling on FW init failure
Disable IRQ's after FW initialization failure - originally this was not
done in all cases, and it resulted in a kernel warning if firmware
initialization was tried again without reboot.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:09 -04:00
Juuso Oikarinen
8a08048a37 wl1271: Move default FW config struct away from stack
Move the default FW config into a module global static variable, instead
of being a stack variable.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:09 -04:00
Juuso Oikarinen
47fab7d589 wl1271: Add config structure for FW init parameters
Add a configuration structure for RX path parameters, and set default
configuration values there.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:08 -04:00
Juuso Oikarinen
51f2be2432 wl1271: Add config structure for connection management parameters
Add a configuration structure for connection management parameters, and
set default configuration values there.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:08 -04:00
Juuso Oikarinen
45b531a86f wl1271: Add config structure for TX path parameters
Add a configuration structure for TX path parameters, and set defalt
configuration values there.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:08 -04:00
Juuso Oikarinen
8793f9bb19 wl1271: Add config structure for RX path parameters
Add a configuration structure for RX path parameters, and set default
configuration values there.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:08 -04:00
Juuso Oikarinen
2b60100bf0 wl1271: Add structure for firmware configuration values
In order to make the firmware configuration more manageable, collect
hardcoded configuration values into one data structure, and set default values
there.

Add the SoftGemini BT/WLAN coex paramters into the config structure.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:07 -04:00
Juuso Oikarinen
2cc8d4db9d wl1271: Workaround for reference clock setting on boot.
If the 38.4MHz reference clock is configured to the firmware, it crashes
on boot. Configuring an experimental 38.4MHz in XTAL mode allows the
firmware to boot, and everything appears to work.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:07 -04:00
Zhu Yi
2f301227a1 iwlwifi: use paged Rx
This switches the iwlwifi driver to use paged skb from linear skb for Rx
buffer. So that it relieves some Rx buffer allocation pressure for the
memory subsystem. Currently iwlwifi (4K for 3945) requests 8K bytes for
Rx buffer. Due to the trailing skb_shared_info in the skb->data,
alloc_skb() will do the next order allocation, which is 16K bytes. This
is suboptimal and more likely to fail when the system is under memory
usage pressure. Switching to paged Rx skb lets us allocate the RXB
directly by alloc_pages(), so that only order 1 allocation is required.

It also adjusts the area spin_lock (with IRQ disabled) protected in the
tasklet because tasklet guarentees to run only on one CPU and the new
unprotected code can be preempted by the IRQ handler. This saves us from
spawning another workqueue to make skb_linearize/__pskb_pull_tail happy
(which cannot be called in hard irq context).

Finally, mac80211 doesn't support paged Rx yet. So we linearize the skb
for all the management frames and software decryption or defragmentation
required data frames before handed to mac80211. For all the other frames,
we __pskb_pull_tail 64 bytes in the linear area of the skb for mac80211
to handle them properly.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:06 -04:00
Luciano Coelho
ae751bab9f wl1271: remove unnecessary joins and join only when the bssid changes
We were using the join command to change some settings when the stack asked
us to do it.  In many cases they were not needed (and could cause potential
problems), so they were removed.  In other cases there are ACX commands that
can be used instead of using join to reconfigure.

Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:06 -04:00
Luciano Coelho
0535d9f4f0 wl1271: use acx_rx_config instead of join when updating filters
We shouldn't use a join command to change the filter settings while
associated.  The right way to do it is to use ACX_RX_CFG.

Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:06 -04:00
Juuso Oikarinen
8bcfcb125b wl1271: Update boot time configuration for the new firmware
Update the magic values of the wl1271 boot time config according to the new
reference driver.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:06 -04:00
Juuso Oikarinen
7462141787 wl1271: Remove outdated SPI functions
With the change to the new firmware, there was a change to firmware memory
partitioning. Along with that change, the translation of all partitions was
unified, and separate functions for reg and mem access became unnecessary.

Cleanup the unnecessary functions.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:05 -04:00
Juuso Oikarinen
207347e498 wl1271: Update TX path block calucation algo
Update the TX path block calculation algorithm based on TI reference.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:05 -04:00
Juuso Oikarinen
3cfd6cf960 wl1271: Enable smart reflex
Enable and configure smart reflex. This should have a reducing impact on
power consumption.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:05 -04:00
Juuso Oikarinen
5d0af498c0 wl1271: Enable ELP
The new firmware has fixed a firmware crash problem related to ELP entry.
Enable ELP to conserve power.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:04 -04:00
Juuso Oikarinen
c15f63bffa wl1271: Update interrupt handling by removing an extra SPI read
Remove separate interrupt register reading from the interrupt handling
routine. This will slightly improve interrupt performance.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:04 -04:00
Juuso Oikarinen
284134eb6f wl1271: RefClk configuration
Updated RefClk configuration based on reference sources. Apparently this
change will improve RF performance.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:04 -04:00
Juuso Oikarinen
e8768eeb59 wl1271: Add top-register access functions
Add top register access function.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:04 -04:00
Juuso Oikarinen
732a1ad93e wl1271: Remove RX workaround
Remove RX workaround which is not needed with newer firmware revisions. This
will reduce one SPI register transaction per RX packet.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:03 -04:00
Juuso Oikarinen
451de97adb wl1271: Update memory mapping for firmware revision 6.1.0.0.241
Update the memory regions and memory mapping to support firmware revision
6.1.0.0.241.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:03 -04:00
Luciano Coelho
37079a831d wl1271: enable HW_AVAILABLE interrupt to fix ELP
We need to listen to HW_AVAILABLE interrupts when using ELP with firmware
revision 6.1.0.0.241.  Add WL1271_ACX_INTR_HW_AVAILABLE to the interrupts that
are enabled by default.

Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:03 -04:00
Luciano Coelho
ac78403e14 wl1271: add workaround to avoid distortion due to excessive tx power
We still don't have proper calibration for our devices, so we are using way
too much power for TX, which causes a lot of distortion.  This hack hardcodes
the txpower to 7dBm.

Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:02 -04:00
Luciano Coelho
d6e19d135d wl1271: workaround to send a disconnect before rejoining
We don't get any indication from the stack when we have disassociated.  In
wl1271, it is important to send a CMD_DISCONNECT before joining again,
because the firmware cleans some things up.  So we check if we're already
joined and disconnect if that's the case.

Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:02 -04:00
Luciano Coelho
25a7dc6d22 wl1271: implement cmd_disconnect
This patch implements the CMD_DISCONNECT command, which should be sent to the
firmware when we are disassociated.

Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:01 -04:00
Wey-Yi Guy
e57f14895b iwlwifi: update channel switch command API
Channel switch host command has different data structure for
different devices. Adding additional structures to support 5000 and 6000
NICs. unlike 4965, starting with 5000 series, the tx power is managed by
uCode, there is no tx power db information need to be passing from driver to
uCode; but the space needs to be reserved to match uCode expection.

1000 NIC do not support channel switch operation since it is 'bgn'
device, there is no need to have data structure defined for it.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:01 -04:00
Abhijeet Kolekar
768db9829d iwl3945: rearrange the code.
Rearrange the code and groups setting of
retry_limit and data_retry_limits code together.
Make 'data_retry_limit' setting similar to iwlwifi
for better readability.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:01 -04:00
Abhijeet Kolekar
1f0436f470 iwlwifi/iwl3945: remove data_retry_limit
Remove the ununsed variable data_retry_limit
from priv.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:00 -04:00
Abhijeet Kolekar
9744c91f91 iwl3945: rename tx to tx_cmd
Rename iwl3945_tx_cmd variable tx to tx_cmd for better
readability.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:00 -04:00
Abhijeet Kolekar
37dc70fea8 iwlwifi/iwl3945: unify rts_tx_cmd_flag
3945 and 4965 share the functionality for setting RTS and CTS to
the tx_cmd. Unify these functions and move the common
functionality to core.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:00 -04:00
Wey-Yi Guy
92a35bda79 iwlwifi: showing accumulative ucode statistics counters
Adding accumulative statistics counters in iwlwifi driver.
Statistics counters are reported by uCode every beacon interval; but can
be reset by uCode when needed. The accumulative statistics counters is
maintained by driver to keep track of the history of all the counters.

Update the ucode stats files in debugfs to display both latest and
accumulative counters.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:00 -04:00
Wey-Yi Guy
88804e2b33 iwlwifi: dynamic allocate tx queue structure
Instead of always allocate the max number of tx queue structure,
use dynamic allocation based on the number of queues in device
configuration. With these changes, device does not have to allocate more
memory than the h/w can support.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:47:59 -04:00
Ben Cahill
008a9e3e3c iwl3945: move iwl_power_initialize()
iwl_power_initialize() initializes driver data (not device hardware), and does
not need to execute more than once (when the driver initializes).  Therefore, it
does not belong in iwl3945_apm_init(), which initializes hardware, and may run
more than once.

Move it to iwl3945_pci_probe(), where it will run only once.  This agrees
with similar placement in iwl-agn.c's iwl_pci_probe(), although placement
under "services" seemed more appropriate than under "mac80211".

Signed-off-by: Ben Cahill <ben.m.cahill@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:47:59 -04:00
Ben Cahill
743cdf1b65 iwl3945: streamline iwl3945_rfkill_poll()
iwl3945_rfkill_poll() has been silently calling wiphy_rfkill_set_hw_state()
every 2 seconds, regardless of whether hardware RF KILL switch changed state.

Call wiphy_rfkill_set_hw_state() only when RFKILL switch changes.
Add IWL_DEBUG_RF_KILL log message and documentation.

Signed-off-by: Ben Cahill <ben.m.cahill@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:47:59 -04:00
Reinette Chatre
1a34c04380 iwlwifi: fix userspace setting of sleep_level_override
The sleep_level_override debugfs file is used by the user to request a
static power index instead of the dynamic sleep values. Users are expected
to provide value from 1 to 5 as an index or -1 to disable it.

The problem at the moment is that users can also provide 0 to this file
which, together with the value 1, is translated to index 1. This is
confusing and even more so when users write 0 to sleep_level_override and
then read 1 from it afterwards.

Modify checking to treat 0 as invalid.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:47:58 -04:00
Wey-Yi Guy
55036d6602 iwlwifi: additional items in sensitivity range table
Add more items to sensitivity range table to avoid using hardcoded values.
Initialize the table per device since unique per device information is
required to perform sensitivity calibration.

additional items in sensitivity range table:
   .barker_corr_th_min: Barker correlation threshold minimum
   .barker_corr_th_min_mrc: Barker correlation threshold minimum for MRC
   .nrg_th_cca: Energy threshold for Clear Channel Assessment

Barker codes are a technique used in WLAN encoding for transmission.
MRC is "Maximal Ratio Combining", a technique for optimally combining the
signals from 2 or more receivers to achieve a better signal.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:47:58 -04:00
Wey-Yi Guy
bd35f15082 iwlwifi: remove duplicated/unused definition
"IWL_CMD_QUEUE_NUM" is being defined in multiple places and used by all
the devices. move it to iwl-dev.h file and shared by all the devices.

Remove "IWL_CMD_FIFO_NUM", replaced by "IWL49_CMD_FIFO_NUM" and IWL50_CMD_FIFO_NUM"

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:47:58 -04:00
Ben Cahill
b660d3adb8 iwlagn, iwl3945: remove apm_reset() functions
Clean up device-specific apm_reset() functions and library infrastructure,
now that these reset() functions are no longer being used.

Signed-off-by: Ben Cahill <ben.m.cahill@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:47:58 -04:00
Ben Cahill
278d84051d iwl3945: remove unnecessary call to apm_ops.reset()
Now that we're unconditionally using apm_ops.stop() to reset and power-down
the device in __iwl3945_down(), the apm_ops.reset() is redundant.  Removing
this call will also allow us to remove iwl3945_apm_reset().

Remove unneeded iwl_clear_bit(CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ) because
this bit will be set again very soon in iwl3945_hw_txq_ctx_stop() and other
following calls.

Signed-off-by: Ben Cahill <ben.m.cahill@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:47:57 -04:00