For 6x00 2x2 NIC, two types of Power Amplifier are available.
In order for uCode to apply correct tx power,
driver needs to program the CSR_GP_DRIVER_REG register and
let uCode know the type of PA.
If driver do not program CSR_GP_DRIVER_REG register (default to 0),
then it is uCode's decision for tx power

2x2 Hybrid card: use both internal and external PA
2x2 IPA(Internal Power Amplifier) card: internal PA only
Signed-off-by: NWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

No existing callbacks use anything other than the return
value 1, which means that the caller should free the
reply skb, so it seems safer in terms of not introducing
memory leaks to simply remove the return value and let
the caller always free the skb.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The current command sending in iwlwifi is a bit of a mess:
 1) there is a struct, iwl_cmd, that contains both driver
    and device data in a single packed structure -- this
    is very confusing
 2) the on-stack data and the command metadata share a
    structure by embedding the latter in the former, which
    is also rather confusing because it leads to weird
    unions and similarly odd constructs
 3) each txq always has enough space for 256 commands,
    even if only 32 end up being used

This patch fixes these things:
 1) rename iwl_cmd to iwl_device_cmd and keep track of
    command metadata and device command separately, in
    two arrays in each tx queue
 2) remove the 'meta' member from iwl_host_cmd and only
    put in the required members
 3) allocate the cmd/meta arrays separately instead of
    embedding them into the txq structure
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

iwl_enable_interrupts is being called inside the interrupt,
change from function call to inline
Signed-off-by: NWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

* Deprecate the "debug50" module parameter used to obtain
  5000 series and up debugging. Replace it with "debug" module
  parameter to match with original driver and be consistent
  between them. The "debug50" module parameter can still be used,
  except that the module parameter is not writable in keeping
  with its previous state. We currently just mark it as "deprecated"
  and do not have it in the feature-removal-schedule. Some more
  cleanup of module parameters needs to be done and can then be
  entered together.

* Only make "debug" module parameters visible if the driver
  is compiled with CONFIG_IWLWIFI_DEBUG. This will eliminate
  a lot of confusion where users think they have set debug flags
  but yet cannot see any debug output.

* Make module parameters writable. This eliminates the need for the
  "debug_level" sysfs file, which can now also be deprecated and
  added to feature-removal-schedule. This file is in significant
  use though with many iwlwifi documents and text referring users
  to it. We can thus not take its removal lightly and keep it around.

With iwlcore shared between iwlagn and iwl3945 we really do not need
debug module parameters for each but can instead have one debug
module parameter for the iwlcore module. The same issue is here as
with the sysfs file - a lot of iwlwifi documentation and text (like
bug reports) rely on iwlagn and iwl3945 having this module parameter,
so changing this to a module parameter of iwlcore will have significant
impact and we do not do this for that reason.

One consequence of this patch is that if a user is running a system
with both 3945 and later hardware then the setting of the one module
parameter will affect the value of the other. The likelihood of this
seems low - and even if this setup is present it does not seem like an
issue for both modules to run with the same debug level.
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Wait for REPLY_ALIVE notification from init and runtime uCode.
based on the type of REPLY_ALIVE, different status bit will be set to
wake up the queue:
STATUS_INIT_UCODE_ALIVE for init uCode
STATUS_RT_UCODE_ALIVE for runtime uCode.

If timeout, attempt to download the failing uCode image again. This can
only be done for the init ucode images of all iwlagn devices and the
runtime ucode image of the 5000 series and up. If there is a problem
with the 4965 runtime ucode coming up we restart the interface and thus
trigger a new download of the init ucode also.
Signed-off-by: NWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Adding new API version to account for change to ucode file format.  New
header includes the build number of the ucode.  This build number is the
SVN revision thus allowing for exact correlation to the code that
generated it.

The header adds the build number so that older ucode images can also be
enhanced to include the build in the future.

some cleanup in iwl_read_ucode needed to ensure old header not used and
reduce unnecessary references through pointer with the data is already
in heap variable.
Signed-off-by: NJay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

iwl_dump_nic_error_log can be static and iwl_dump_nic_event_log
doesn't need to be exported.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Acked-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch unifies setup_rxon_timing funcions
of AGN and 3945. HWs differ only in supported maximal
beacon interval. This is reflected in hw_paras.max_beacon_itrvl
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

When userspace requests only certain channels to be scanned,
we currently ignore that request entirely.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This ports the iwlwifi rfkill code to the new API offered by
cfg80211 and thus removes a lot of useless stuff. The soft-
rfkill is completely removed since that is now handled by
setting the interfaces down.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Tested-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Fixing a comment in the code describing this module parameter.
The description printed when user runs "modinfo" is correct.
Reported-by: NJiajia Zheng <jiajia.zheng@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch unifies 3945 and AGN station management
It also removes useless struct iwl_station_mgmt ops
and cleanups a bit the interface
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Tested-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

If RX queue becomes empty then we need to restock the queue from tasklet to prevent
ucode from starving. A caller to iwl_rx_allocate will decide if allocated buffer should
come from GFP_ATOMIC or GFP_KERNEL.
Signed-off-by: NMohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Add ICT interrupt handler support, ICT should improve CPU utilization
 since it does not require target read which is very expensive. This
 interrupt handler only added to 5000 cards and newer. Device will write
 interrupts to ICT shared table to inform driver about its interrupts.

These patches will not touch 3945 and 4965 interrupt handlers and tasklet.
Signed-off-by: NMohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The temperature measurement by uCode for 5150 and 5000 are different
        CSR_HW_REV_TYPE_5150: temperature sensor output voltage
        CSR_HW_REV_TYPE_5000: temperature in Celsius
temperature related operation for 5150 is measured by temperature sensor
output voltage; additional conversion is required for set and store
the temperature.

To make sure support different HW design; implement _ops method for
temperature related functions (temperature reading and set ct kill
threshold)
Signed-off-by: NWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

It's not needed outside iwl-core.c
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Acked-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The config_interface method is a little strange, it contains the
BSSID and beacon updates, while bss_info_changed contains most
other BSS information for each interface. This patch removes
config_interface and rolls all the information it previously
passed to drivers into bss_info_changed.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Patch removes the "manual radio disable" parameter
as there is no usage scenario of disabling radio using this module parameter.
User can use iwconfig's txpower to enable and disable radio.

This module parameter also does not work as expected. During module load
the status of radio is set, the radio is not actually disabled. Even so,
the moment mac80211 requests the interface to be up the radio will be
enabled again.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch clean up the code for NL80211_IFTYPE_MONITOR mode,
priv->iw_mode is set in add_interface, but add_interface is never called
for monitor mode.
The only way mac80211 informs us about monitor mode is through
configuring filter; since iw_mode will never set to
NL80211_IFTYPE_MONITOR, modify and remove all the code refer to
NL80211_IFTYPE_MONITOR and replace with iwl_is_monitor_mode() function
call.
Signed-off-by: NWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This modifies iwlwifi to
 * no longer build its own probe request, but use mac80211's
 * therefore, support arbitrary scan IEs (up to the max len)
 * support multiple scan SSIDs
 * support passive scanning
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds interrupt statistics report to debugfs, this can help to
understand number of interrupts happened which including HW/SW error for
easier and better debugging.

in /sys/kernel/debug/ieee80211/phyN/iwlagn/data directory
use "cat interrupt" to view the current interrupt counter
use "echo 0 > interrupt" to clear interrupt counter
Signed-off-by: NWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

3945 can now use iwl_mac_reset_tsf from iwlwifi.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

3945 can now use iwl_mac_get_tx_stats from iwlwifi.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

3945 can now use iwl_mac_config_interface from iwlwifi.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

add config_ap lib op to iwlwifi and iwl3945 in preparation
of future 3945 porting actions.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

3945 can now use iwl_mac_config from iwlwifi
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

3945 can now use iwl_mac_remove_interface from iwlwifi
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

3945 can now use iwl_set_mode from iwlcore library.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

add set_rxon_chain op to iwlwifi cfg ops in preparation of
future 3945 porting work.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Patch unifies the add_station function for 3945 and iwlwifi drivers.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds declarations for station management ops to iwlwifi drivers.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Patch adds commit_rxon lib operation to iwlwifi and iwl3945 drivers.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

3945 can use iwl_mac_beacon_update.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

3945 can use iwl_bss_info_changed.
A new lib op is created for post_assoicate to distinguish between
3945 and iwlwifi's post_associate operations.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

3945 now uses iwl_mac_conf_tx.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

With mac80211's help to call stop() and start() in mac80211
suspend/resume function, both iwlagn and iwl3945 no longer calling
stop() and start(); remove un-necessary STATUS_IN_SUSPEND bit from both
header files and functions,

Move apm_ops.stop() function into pci_suspend() to ensure
DMA is stopped before go into suspend mode.

iwl3945 has the similar suspend/resume function as iwlagn, so move both
functions to iwlcore to be shared by both drivers.
Signed-off-by: NWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

iwl_cmd_queue_free needs to be used to free up the cmd_queue,
as TFD slots for cmd_queue and tx_queue are different.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

3945 can use iwl_activate_qos instead of iwl3945_activate_qos.
Patch does two things
1) Patch adds iwl_activate_qos in core library.
2) 3945 makes use of iwl_activate_qos.
Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>