The driver can just check the mask directly
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

By checking for NR_CPUS, the compiler can optimize out register access
serialization code on non-SMP kernels
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The default antenna (as programmed by the INI file) is always 0 anyway.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Automatically set the ah->htc_reset_init on init and after PHY disable.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

TXQ_FLAG_TXOKINT_ENABLE and TXQ_FLAG_TXERRINT_ENABLE are always set and
used together, and they share the same bitmask in enum ath9k_tx_queue_flags.
Simplify the code that tests for these flags.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

mac80211 provides short preamble information and ERP protection
information on a per-BSS basis, which can be used. Remove flags
stored in the driver, which was incorrect since they were being used
in a global manner.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

SC_OP_TXAGGR and SC_OP_RXAGGR are not really needed.
The HT capabilities of the station and HW can be used instead.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The logic to determine whether to use FCC is a bit convoluted.
Use a small helper function to decide whether FCC is to be
used.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

It is not needed and will not be used anyway since
unsupported interfaces are not allowed to be created.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

There is no need to mask out SWBA/BMISS from the
interrupt mask in start().
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Commit 7504a3e1 ("ath6kl: add padding to firmware log records") accidentally
changed debug.c mode from 100644 to 100755. Revert that back to original.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

ath6kl/cfg80211.c:589: WARNING: max() should probably be
max_t(u16, vif->listen_intvl_t, ATH6KL_MAX_WOW_LISTEN_INTL)
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

ath6kl/sdio.c:875: CHECK: Alignment should match open parenthesis
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

Recommended by checkpatch.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

My patch 24fc32b3 ("ath6kl: add ath6kl_bmi_write_hi32()") caused a regression
in ath6kl_upload_board_file() and the board_address variable was not
properly initialised in some cases:

ath6kl/init.c:1068:6: warning: ‘board_address’ may be used uninitialized
in this function

Most likely this broke ar6004 support but I can't test that right now.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

The check for PS_WAIT_FOR_TX_ACK was inverted, the hardware should only go
to full sleep if no tx is pending.
Reported-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

mactime was being overwritten by the function ath9k_rx_skb_preprocess. Fixed by
memsetting rx_status in ath_rx_tasklet.
Signed-off-by: NAshok Nagarajan <ashok@cozybit.com>
Signed-off-by: NJavier Cardona <javier@cozybit.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The proper place to configure bss info is at assoc notification. So that
ath9k continues to work if the supirous bssid notification will be
removed in future.

Cc: Johannes Berg <johannes@sipsolutions.net>
Reported-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NRajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

tested in AR9462 Rev:2, both hardware capability flag are set
Signed-off-by: NMohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

On systems with multiple NICs, it's nice to know which
one is producing warnings.  Here is an example of the
new ouput:

ath: wiphy0: Failed to stop TX DMA, queues=0x005!
Signed-off-by: NBen Greear <greearb@candelatech.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Flush MCI profiles only if MCI is being actually used.
This fixes a panic on driver unload when non-MCI devices
are being used and btcoex_enable is set.

BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffffa06296d2>] ath_mci_flush_profile+0x12/0x100 [ath9k]
Call Trace:
[<ffffffffa061befe>] ath9k_stop_btcoex+0x5e/0x80 [ath9k]
[<ffffffffa061ed57>] ath9k_stop+0xb7/0x230 [ath9k]
[<ffffffffa0533f30>] ieee80211_stop_device+0x50/0x180 [mac80211]
[<ffffffffa051f0cf>] ieee80211_do_stop+0x2af/0x6a0 [mac80211]
[<ffffffffa051f4da>] ieee80211_stop+0x1a/0x20 [mac80211]
[<ffffffff81365d96>] __dev_close_many+0x86/0xe0
[<ffffffff81365ee0>] dev_close_many+0xa0/0x110
[<ffffffff81366038>] rollback_registered_many+0xe8/0x260
[<ffffffff813661cb>] unregister_netdevice_many+0x1b/0x80
[<ffffffffa051e950>] ieee80211_remove_interfaces+0xd0/0x110 [mac80211]
[<ffffffffa050c133>] ieee80211_unregister_hw+0x53/0x120 [mac80211]
[<ffffffffa061d5a4>] ath9k_deinit_device+0x44/0x70 [ath9k]
[<ffffffffa062c1d4>] ath_pci_remove+0x54/0xa0 [ath9k]
[<ffffffff81267c46>] pci_device_remove+0x46/0x110
[<ffffffff8131021c>] __device_release_driver+0x7c/0xe0
[<ffffffff81310960>] driver_detach+0xd0/0xe0
[<ffffffff81310078>] bus_remove_driver+0x88/0xe0
[<ffffffff81311122>] driver_unregister+0x62/0xa0
[<ffffffff81268004>] pci_unregister_driver+0x44/0xc0
[<ffffffffa062c8b5>] ath_pci_exit+0x15/0x20 [ath9k]
[<ffffffffa063205d>] ath9k_exit+0x15/0x31 [ath9k]
[<ffffffff810b92cc>] sys_delete_module+0x18c/0x270
[<ffffffff814373dd>] ? retint_swapgs+0x13/0x1b
[<ffffffff8124828e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[<ffffffff81437de9>] system_call_fastpath+0x16/0x1b
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Portion of the commit id 080eec4f ("ath6kl: Clear the IE in firmware
if not set") was overwritten by mistake due to a merge
conflict. This patch fixes the code back to how it should be.

kvalo: more details to the commit log
Signed-off-by: NAarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

On A-MPDU frames, the hardware only reports valid signal strength data for
the last subframe. The driver also mangled rx_stats->rs_rssi using the
ATH_EP_RND macro in a way that may make sense for ANI, but definitely
not for reporting to mac80211.
This patch changes the code to calculate the signal strength from the rssi
directly instead of taking the average value, and flag everything but
the last subframe in an A-MPDU to tell mac80211 to ignore the signal strength
entirely, fixing signal strength fluctuation issues reported by various
users.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Process rx status directly instead of separating the completion test from
the actual rx status processing.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The way this is implemented (simply storing the last value) is absolutely
worthless for debugging anything, and the same information is also available
through the MAC sample feature, so there's no point in keeping this around.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

They're more expensive than some of the other debug options and only used
in very rare situations, so it sometimes makes sense to disable them while
leaving in debugfs support.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Cold reset is more reliable for getting the hardware out of some specific
stuck states.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

ath6kl_bmi_[read|write]_hi32() did not have endian support, fix that.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

Found by checkpatch:

drivers/net/wireless/ath/ath6kl/init.c:78: WARNING: line over 80 characters
drivers/net/wireless/ath/ath6kl/init.c:397: WARNING: line over 80 characters
drivers/net/wireless/ath/ath6kl/init.c:407: WARNING: line over 80 characters
drivers/net/wireless/ath/ath6kl/htc.c:189: WARNING: line over 80 characters
drivers/net/wireless/ath/ath6kl/htc.c:704: WARNING: line over 80 characters
drivers/net/wireless/ath/ath6kl/htc.c:2452: WARNING: line over 80 characters
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

Also fixes quite a few checkpatch warnings like this:

ath6kl/hif.h:226: CHECK: spinlock_t definition without comment
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

ath6kl/cfg80211.c:462: CHECK: Alignment should match open parenthesis
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

The error handling in ath6kl_target_config_wlan_params() was just weird,
fix that. This also fixes some of the open parenthesis alignment issues
reported by checkpatch.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

There are few 32 bit reads from the host interest area. Add
ath6kl_bmi_read_hi32() to make it easier to do that. As code is cleaner
this also fixes few checkpatch warnings.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

We have a lot of 32 bit writes to the host interest area and the code
doing that is ugly. Clean that up by adding ath6kl_bmi_write_hi32().

This also fixes few checkpatch warnings.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

Found by checkpatch:

drivers/net/wireless/ath/ath6kl/cfg80211.c:1295: CHECK: multiple assignments should be avoided
drivers/net/wireless/ath/ath6kl/cfg80211.c:3000: CHECK: multiple assignments should be avoided
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

All found by checkpatch:

ath6kl/wmi.c:1036: CHECK: Logical continuations should be on the previous line
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

Fix the issues which checkpatch found and were easy to fix. Especially
callers of ath6kl_bmi_write() are tricky and that needs to be fixed
separately.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

ath6kl/debug.c:739: ERROR: Macros with complex values should be
enclosed in parenthesis
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>