ath6kl: Refactor ath6kl_wmi_control_rx()

Split the wmi event processing into the one which needs to be
vif specific and the reset. This is a step towards avoiding
the need for wiphy

ath6kl: Refactor ath6kl_wmi_control_rx()

Split the wmi event processing into the one which needs to be
vif specific and the reset. This is a step towards avoiding
the need for wiphy and a netdev registration before getting
any message from firmware.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Add unicast mgmt frame buffering

PS buffering of unicast Action frames that are sent in a context
of a BSS. In AP mode when the recepient station goes to powersave
and PS_POL

ath6kl: Add unicast mgmt frame buffering

PS buffering of unicast Action frames that are sent in a context
of a BSS. In AP mode when the recepient station goes to powersave
and PS_POLL flag is not set, we would buffer the frames. Send out
unicast mgmt bufferred frame when PS_POLL is received.

This fixes a bug in P2P GO behavior when sending a GO Discoverability
Request to a client that is in sleep mode.

kvalo: indentation fixes

Signed-off-by: Thirumalai Pachamuthu <tpachamu@qca.qualcomm.com>
Signed-off-by: Naveen Gangadharan <ngangadh@qca.qualcomm.com>
Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Update license header

Update license header with the copyright to Qualcomm Atheros, Inc.
for the year 2011-2012.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.q

ath6kl: Update license header

Update license header with the copyright to Qualcomm Atheros, Inc.
for the year 2011-2012.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Wait for host sleep mode cmd processed event during WOW suspend

For every WMI_SET_HOST_SLEEP_MODE_CMDID command (send from the host),
the firmware sends WMI_SET_HOST_SLEEP_MODE_C

ath6kl: Wait for host sleep mode cmd processed event during WOW suspend

For every WMI_SET_HOST_SLEEP_MODE_CMDID command (send from the host),
the firmware sends WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID as
an acknowledgement to the host.

In order to being sync with the firmware, the host has to wait for
WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENT event before going to
the suspend state. This patch ensures ath6kl_wow_suspend() waits
until it gets this event after sending set host sleep mode command.

This patch adds,
* New command WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID in
WMI event table.
* New WMI function ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx()
to process the event.
* New flag HOST_SLEEP_MODE_CMD_PROCESSED in VIF flags to record
the arrival of the event.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Configure WOW patterns while going to wow_suspend

First preference is given to the user configured WOW patterns.
If the user doesn't configure any patterns (for ex, via iw comman

ath6kl: Configure WOW patterns while going to wow_suspend

First preference is given to the user configured WOW patterns.
If the user doesn't configure any patterns (for ex, via iw command),
the default patterns will be configured based on the current mode
(vif->nw_type) while going to WOW suspend.

Summary of changes:

* ath6kl_wow_ap() is added to configure the below default
patterns when the system enters into WOW suspend in AP mode.
+ Unicast IP, EAPOL-like and ARP packet pattern
+ ARP packet pattern
+ mDNS/SSDP/LLMNR pattern
+ DHCP broadcast pattern

* ath6kl_wow_sta() is added to configure the below default
patterns when the system enters into WOW suspend in STA mode.
+ Unicast packet pattern
+ mDNS/SSDP/LLMNR pattern

* Move the user provided WOW patterns configuration code
from ath6kl_wow_suspend() to a separate function called
ath6kl_wow_usr().

* Two argument variable's ('filter' and 'mask) data type in
ath6kl_wmi_add_wow_pattern_cmd() are changed from 'u8 *' to
'const u8 *'. This is needed to make all pattern and mask
arrays to be 'static const u8' in the caller function.

* New conditional check is added to make sure user
configured pattern count is within the limit (WOW_MAX_FILTERS_PER_LIST).

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: get rid of AR_DBG_LVL_CHECK()

We don't need it as debug calls already have a log level and compiler
should be smart enough to optimise away the code when ath6kl debug code
is

ath6kl: get rid of AR_DBG_LVL_CHECK()

We don't need it as debug calls already have a log level and compiler
should be smart enough to optimise away the code when ath6kl debug code
is not enabled. Also it makes it easier to abstract core code to
ath6kl_core.ko.

In ath6kl_dump_registers() I had to change the debug level from ANY to IRQ
as I removed the AR_DBG_LVL_CHECK() check before calling the function.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Add support for uAPSD

* A new APSD power save queue is added in the station structure.
* When a station has APSD capability and goes to power save, the frame
designated to

ath6kl: Add support for uAPSD

* A new APSD power save queue is added in the station structure.
* When a station has APSD capability and goes to power save, the frame
designated to the station will be buffered in APSD queue.
* When the host receives a frame which the firmware marked as trigger,
host delivers the buffered frame from the APSD power save queue.
Number of frames to deliver is decided by MAX SP length.
* When a station moves from sleep to awake state, all frames buffered
in APSD power save queue are sent to the firmware.
* When a station is disconnected, all frames bufferes in APSD power save
queue are dropped.
* When the host queues the first frame to the APSD queue or removes the
last frame from the APSD queue, it is indicated to the firmware using
WMI_AP_APSD_BUFFERED_TRAFFIC_CMD.

kvalo: fix buggy handling of sks queues, made it more obvious
the user priority when wmm is disabled, remove unneed else block and
combined some variable declarations

Signed-off-by: Thirumalai Pachamuthu <tpachamu@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Add a function in wmi.c to add/delete a multicast filter

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>

ath6kl: Add a function in wmi to send WMI_MCAST_FILTER_CMDID

This will be used to disable/enable multicast receive.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.c

ath6kl: Add a function in wmi to send WMI_MCAST_FILTER_CMDID

This will be used to disable/enable multicast receive.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>

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ath6kl: send TCMD response through testmode events

ath6kl no longer knows what it is transmitting through
cfg80211_testmode, and simply passes opaque buffers between userspace
and th

ath6kl: send TCMD response through testmode events

ath6kl no longer knows what it is transmitting through
cfg80211_testmode, and simply passes opaque buffers between userspace
and the firmware. Leave the CONT_RX enum for backwards compatibility.

kvalo: change ATH6KL_TM_CMD_RX_REPORT to return -EOPNOTSUPP

Signed-off-by: Thomas Pedersen <twpedersen@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Avoid taking struct as argument in ath6kl_wmi_set_ip_cmd

In this way, caller is free to pass only the value of IP addr
to configure.

In addition to this,
* 'ips' v

ath6kl: Avoid taking struct as argument in ath6kl_wmi_set_ip_cmd

In this way, caller is free to pass only the value of IP addr
to configure.

In addition to this,
* 'ips' variable data type in struct wmi_set_ip_cmd is changed
from __le32 to __be32 in order to match network byte order.
* ipv4_is_multicast() is used to validate multicast ip addr.
* New argument if_idx is added to supply correct vif index
to ath6kl_wmi_cmd_send().

This will be used in the next patch.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Thirumalai Pachamuthu <tpachamu@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: support for P2P mgmt operations on station interface

This patch enables support for doing P2P management operations like device
discovery on top of a station interface. After gro

ath6kl: support for P2P mgmt operations on station interface

This patch enables support for doing P2P management operations like device
discovery on top of a station interface. After group formation, the station
interface will become a P2P GO/client interface as the case may be.

This feature requires modifications to a couple of existing WMI structures and
therefore new command ids and structures have been defined in order to be
compatible with older firmware versions and other chips. The exception here is
the wmi_connect_cmd. Adding a new field to the end of the structure will not
cause any issues with previous firmware versions since firmware only checks for
minimum length of the command. The other structures are of variable length,
hence it was not possible to add new fields to the end.

The new command ids have to be added to the end of enum wmi_cmd_id, so it has
updated to match the firmware.

The driver will support both the 'old' and the 'new' commands for a while by
checking the firmware capabilities.

Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: implement scheduled scan

ath6kl firmware supports scheduled scan functionality with the wow ssid
filter. But the firmware does not send any events after scan results
so I had

ath6kl: implement scheduled scan

ath6kl firmware supports scheduled scan functionality with the wow ssid
filter. But the firmware does not send any events after scan results
so I had to add a timer which notifies about new scan results.

Sched scan needs firmware version 3.2.0.6 or later. If firmware doesn't
support sched scan the driver will not enable the feature.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: make maximum number of vifs runtime configurable

Needed when detecting how many vifs firmware supports.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

ath6kl: Fix target minimum length requirement for WMI_SEND_PROBE_RESPONSE_CMDID

The firmware expects the minimum length of
WMI_SEND_PROBE_RESPONSE_CMDID to be 13. However, when the devic

ath6kl: Fix target minimum length requirement for WMI_SEND_PROBE_RESPONSE_CMDID

The firmware expects the minimum length of
WMI_SEND_PROBE_RESPONSE_CMDID to be 13. However, when the device is a
P2P GO and it needs to send a probe response to a non-P2P client,
there are no P2P IEs to be added, and therefore the length of the WMI
command is 12. This command gets rejected by the firmware. To fix
this, add an extra byte to satisfy the minimum length requirement.

Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Remove few unused WMI stuff

* Removed unused WOW_MAX_FILTER_LISTS macro.

* Removed empty ath6kl_wmi_get_wow_list_event_rx() function.
List of configured WOW patterns a

ath6kl: Remove few unused WMI stuff

* Removed unused WOW_MAX_FILTER_LISTS macro.

* Removed empty ath6kl_wmi_get_wow_list_event_rx() function.
List of configured WOW patterns are maintained in CFG layer
itself. No need to have this function in ath6kl to get
configured WOW pattern list. It can added later if we need
it for debugging.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Add wmi functions to configure WOW mode and host sleep mode

It will be used in WOW suspend/resume functions to
active/deactivate WOW suspend mode.

Signed-off-by: Raja Ma

ath6kl: Add wmi functions to configure WOW mode and host sleep mode

It will be used in WOW suspend/resume functions to
active/deactivate WOW suspend mode.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Add wmi functions to add/delete WOW patterns

These commands will be used in WOW suspend/resume functions
to configure WOW parameters like patterns to be matched
and it's mask

ath6kl: Add wmi functions to add/delete WOW patterns

These commands will be used in WOW suspend/resume functions
to configure WOW parameters like patterns to be matched
and it's mask value, etc.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Fix key configuration to copy at most seq_len from seq

There is no guarantee on the caller using 8-octet buffer for
key->seq, so better follow the key->seq_len parameter on figur

ath6kl: Fix key configuration to copy at most seq_len from seq

There is no guarantee on the caller using 8-octet buffer for
key->seq, so better follow the key->seq_len parameter on figuring
out how many octets to copy.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Fix lockdep warning

The following is the lockdep warning which detects possible
deadlock condition with the way ar->lock and ar->list_lock
are being used.

(&(&ar->

ath6kl: Fix lockdep warning

The following is the lockdep warning which detects possible
deadlock condition with the way ar->lock and ar->list_lock
are being used.

(&(&ar->lock)->rlock){+.-...}, at: [<ffffffffa0492d13>] ath6kl_indicate_tx_activity+0x83/0x110 [ath6kl]
but this lock took another, SOFTIRQ-unsafe lock in the past:
(&(&ar->list_lock)->rlock){+.+...}

and interrupts could create inverse lock ordering between them.

other info that might help us debug this:
Possible interrupt unsafe locking scenario:

CPU0 CPU1
---- ----
lock(&(&ar->list_lock)->rlock);
local_irq_disable();
lock(&(&ar->lock)->rlock);
lock(&(&ar->list_lock)->rlock);
<Interrupt>
lock(&(&ar->lock)->rlock);

*** DEADLOCK ***

softirqs have to be disabled when acquiring ar->list_lock to avoid
the above deadlock condition. When the above warning printed the
interface is still up and running without issue.

Reported-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: rename ath6kl_wmi_qos_state_init() to _wmi_reset()

Just to make it more clear that this function is supposed to
reset wmi related variables.

Signed-off-by: Kalle Valo <k

ath6kl: rename ath6kl_wmi_qos_state_init() to _wmi_reset()

Just to make it more clear that this function is supposed to
reset wmi related variables.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: fix missing copy of action frame contents

The wpa_supplicant was receiving incorrect frame contents in the
callback function that indicates the status of the frame transmitted.

ath6kl: fix missing copy of action frame contents

The wpa_supplicant was receiving incorrect frame contents in the
callback function that indicates the status of the frame transmitted.
This patch fixes a missing copy of the frame contents to a local
buffer. The local buffer keeps track of the last sent management frame.

Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Report unique remain-on-channel cookie values

Even though only a single concurrent remain-on-channel operation is
supported, there may be two pending remain-on-channel events (on

ath6kl: Report unique remain-on-channel cookie values

Even though only a single concurrent remain-on-channel operation is
supported, there may be two pending remain-on-channel events (one to
indicate end of a canceled operation and another to indicate start of a
new operation). User space won't be able to distinguish these events
unless unique cookies are used.

The previous behavior resulted in wpa_supplicant getting quite
confused about the driver's offchannel state in various sequences
and this made the P2P state machine behave incorrectly. Use of
more than a single remain-on-channel cookie value fixes this.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Initialize target wlan values for every vif

Wlan parameters need to be configured for every vif
in target.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcom

ath6kl: Initialize target wlan values for every vif

Wlan parameters need to be configured for every vif
in target.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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ath6kl: Maintain virtual interface in a list

This patch removes all references to ar->vif and takes
vif from a list.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualc

ath6kl: Maintain virtual interface in a list

This patch removes all references to ar->vif and takes
vif from a list.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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