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path: root/drivers/net/wireless/iwlwifi/iwl-calib.c
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* iwlwifi: automatically adjust sleep levelJohannes Berg2009-08-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Depending on required latency requested by pm_qos (via mac80211) we can automatically adjust the sleep state. Also, mac80211 has a user-visible dynamic sleep feature where we are supposed to stay awake after sending/receiving frames to better receive response frames to our packets, this can be integrated into the sleep command. Currently, and this patch doesn't change that yet, we default to using sleep level 1 if PS is enabled. With a module parameter to iwlcore, automatic adjustment to changing network latency requirements can be enabled -- this isn't yet the default due to requiring more testing. The goal is to enable automatic adjustment and then go into the deepest possible sleep state possible depending on the networking latency requirements. This patch does, however, enable IEEE80211_HW_SUPPORTS_DYNAMIC_PS to avoid the double-timer (one in software and one in the device) when transmitting -- the exact timeout may be ignored but that is not of big concern. Note also that we keep the hard-coded power indices around for thermal throttling -- the specification of that calls for using the specified power levels. Those can also be selected in debugfs to allow easier testing of such parameters. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: fix up command sendingJohannes Berg2009-07-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | 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: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: no need to refer to max_nrg_cck range valueWey-Yi Guy2009-07-101-6/+1Star
| | | | | | | | | | | max_nrg_cck value inside the sensitivity range structure is not needed for sensitivity calibration. Keep the parameter in sensitivity structure but set the value to "0" in case needed in the future implementation. 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>
* iwlwifi: clean up PS codeJohannes Berg2009-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | This removes all the dead code that tries to adjust the power saving level based on the system AC state (inacceptable policy in the kernel) or based on overtemp conditions (unused). Also, pass _all_ policy wrt. enabling PS to mac80211, since we do not use the power_disabled internally I now use that to mirror the mac80211 CONF_PS setting. When mac80211 turns off CONF_PS we follow suit. This means that the user power level (which can currently only be set from sysfs) is not touched for mac80211 powersave changes. This means no "association status" checks are necessary since mac80211 will not allow power save to be enabled when not associated. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Mohamed Abbas <mohamed.abbas@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: replace uses of __constant_{endian}Harvey Harrison2009-02-091-3/+3
| | | | | | | The base versions handle constant folding now. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: remove chain noise calibration functions from 6000 familyJay Sternberg2009-02-091-2/+3
| | | | | | | | | redefine structures that contain function pointer for chain noise reset and chain noise gain for the 6000 family since these are not needed. Signed-off-by: Jay Sternberg <jay.e.sternberg@linux.intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: don't use implicit priv in IWL_DEBUGTomas Winkler2009-02-091-37/+37
| | | | | | | | | Call IWL_DEBUG macro with explicit priv argument. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Acked-by: Samuel Ortiz <samuel.ortiz@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: update copyright year to 2009Reinette Chatre2009-01-291-2/+2
| | | | | Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: replace IWL_ERROR with IWL_ERRWinkler, Tomas2009-01-291-2/+2
| | | | | | | | IWL_ERR doesn't use hidden priv pointer. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: cleanup iwl-dev.hWinkler, Tomas2008-12-191-0/+9
| | | | | | | | The patch removes unused definition and moves code to proper places. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: change email contact informationWinkler, Tomas2008-12-121-1/+1
| | | | | | | | | | This patch replaces personal emails with hopefully always valid Intel Linux Wireless, which will be routed to a current maintainer Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: make initial calibration set configurableTomas Winkler2008-11-011-3/+5
| | | | | | | | | | This patch adds ability to configure initial calibration set. Not all HW supported by iwlwifi use the same calibration set, XTAL is one example. Some clean ups are also included in this patch. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: use the results from disconnected antenna algorithmGrumbach, Emmanuel2008-09-111-4/+11
| | | | | | | | | | | | | | | | | | | This patch makes usage of the results from disconnected antenna alg to know how many antennas are connected. It also synchronizes between the chain noise alg and the W/A that disables power management during association. All the antennas must be enables during the chain noise algorithm. Hence, power management is restored only after the completion of the algorithm. In the future, we will need to update the AP that we don't support MIMO if there is only one antenna connected. We also need to update the rate scaling algorithm. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: generic init calibrations frameworkTomas Winkler2008-09-081-0/+60
| | | | | | | | | | | | | | This patch allows variable number of init calibrations and allows addition new HW. This patch also fixes critical bug. Only last calibration result was applied. On reception of one calibration result all the calibration was freed. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: move RX stats to core, and move temperature to handlerEmmanuel Grumbach2008-06-301-2/+2
| | | | | | | | | | This patch moves RX stats flow to core modules, and moves temperature calibration to handler since it is not needed in 5000. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: general code clean upEmmanuel Grumbach2008-06-141-2/+0Star
| | | | | | | | | | This patch cleans up iwlwifi's code: Add missing include, remove empty lines etc... Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: removes the RUN_TIME_CALIB ifdefEmmanuel Grumbach2008-06-141-2/+0Star
| | | | | | | | | | | | This patch removes the possibility not to compile the run time calibrations. It also renames priv->sensitivity_work to priv->run_time_calib_work, and moves bg_run_time_calib to iwl4965_base since it is common to both: 4965 and 5000. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: clean up alive_start routineTomas Winkler2008-06-031-0/+18
| | | | | | | | This patch cleans up alive_start routine. It removes 4965 from the common code and moves the run time calibration reset into a common code. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: add debugfs to disable/enable run time calibrationTomas Winkler2008-05-221-0/+9
| | | | | | | | | This patch adds functionality to debugfs to enable or disable chain noise or sensitivity calibrations. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: rename iwl-4965.h to iwl-dev.hTomas Winkler2008-05-071-1/+1
| | | | | | | This patch renames iwl-4965.h to iwl-dev.h Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: HT antenna/chains overhaulGuy Cohen2008-05-071-1/+2
| | | | | | | | | | | 1. This patch restructures rate scale algorithm to support SISO, MIMO2, MIMO3 2. It adds support for detailed valid TX and RX antennas settings 3. It removes few unesfull antenna definitions Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: HW dependent run time calibrationEmmanuel Grumbach2008-05-071-0/+778
This patch does several things: 1) rename CONFIG_IWL4965_SENSITIVITY to IWL4965_RUN_TIME_CALIB which is better semantic 2) move all the run time calibration to a new file: iwl-calib.c 3) simplify the sensitivity calibration flow and make it HW dependent 4) make the chain noise calibration flow HW dependent Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>