Since btcoex uses static variables to store the cumulative information
on the wifi status, some tricks are used that are a bit obscure. We add
some comments about the criteria we use to adjust wifi duration.
Signed-off-by: NYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

The bt can specify a power level to decrease. Rather than decreasing by a
fixed value (usually 2), this change makes the driver fit to the
environment more quickly.
Signed-off-by: NYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

New ICs have hardware mailbox to deliver bt information instead of doing
it by driver itself, so remove them.
Signed-off-by: NYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

set coex table fine tune, for register settings
Signed-off-by: NYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

The larger the bt a2dp bit pool is, the more time bt needs to receive
them. If we do not adjust the wifi duration, the voice quality will be
low. Hence we reduce the time that wifi holds, to improve the a2dp
service.
Signed-off-by: NYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

modify h2c parameter so that the rate suffers less penalty from retry
Signed-off-by: NYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

If there are too many CRC error packets, it means the wifi is operating
under low quality circumstances. If so, we need to reallocate the
resources of wifi and bt
Signed-off-by: NYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

if the bt is slave, it may receive packet at any time, so we
need to mark them as high priority packets to avoid packet loss.
Signed-off-by: NYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

For wifi and bt coexistence, if the aggregation size of wifi is too
large, the transmission time of the aggregated packet could be too long
and the bt packets might "cut off" the wifi packet. We need to reduce
the aggregation size to improve wifi performance.
Signed-off-by: NYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Fix a number of checkpatch.pl warnings. In addition, some variable and
function names are shortened, and/or renamed to be more consistent.
Signed-off-by: NYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

A number of functions in the Bluetooth Coexistence routines are not used,
and can be removed.
Signed-off-by: NYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

In mwifiex,IEs such as supported channels, supported operating classes
20/40 BSS COexistence are missing and also extra QOS capabilities IE
is added during TDLS discovery response, TDLS setup request and
TDLS setupresponse.
This patch adds require IEs and also removes extra IE.
Signed-off-by: NKarthik Ananthapadmanabha <karthida@marvell.com>
Signed-off-by: NGanapathi Bhat <gbhat@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

trivial fix to spelling mistakes in wl1271_warning error message, change
iligal to invalid and opperation to operation.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

When resetting the device, we take a synchronous firmware-loading code
path, which borrows a lot from the asynchronous path used at probe time.
We don't catch errors correctly though, which means that in the PCIe
driver, we may try to dereference the 'adapter' struct after
mwifiex_fw_dpc() has freed it. See this (erronous) print in
mwifiex_pcie_reset_notify():

	mwifiex_dbg(adapter, INFO, "%s, successful\n", __func__);

Let's instead refactor the synchronous (or "!req_fw_nowait") path so
that we propagate errors and handle them properly.

This fixes a use-after-free issue in the PCIe driver, as well as a
misleading debug message ("successful"). It looks like the SDIO driver
doesn't have these problems, since it doesn't do anything after
mwifiex_reinit_sw().

Fixes: 4c5dae59 ("mwifiex: add PCIe function level reset support")
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

If we fail to reinit the FW when resetting the device (in the
synchronous version of mwifiex_init_hw_fw() -> mwifiex_fw_dpc()),
mwifiex_fw_dpc() will tear down the interface and free up the adapter.
But we don't actually check for all failure cases of mwifiex_fw_dpc(),
so some of them fall through and dereference adapter->fw_done with a
freed adapter, causing a use-after-free bug.

In any case, mwifiex_fw_dpc() will always signal FW completion -- in the
error OR success case -- so at best, this was repeat work. Let's not do
it.
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

In brcmf_pno_start_sched_scan() a local variable is declared and
assigned for struct brcmu_d11inf. However, there is no other reference
to it so it is unnecessary.
Reviewed-by: NHante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: NPieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: NFranky Lin <franky.lin@broadcom.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

In brcmf_pcie_suspend() we inform the firmware on the device that
it will enter in D3 state. Before this is done we already bring down
the bus state. However, When entering D3 fails we abort the suspend
and the bus state need to be restored.
Reviewed-by: NHante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: NPieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: NFranky Lin <franky.lin@broadcom.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

To support network namespace the driver must assure all created
network interfaces are in the same namespace as the wiphy instance
and flag the support using WIPHY_FLAG_NETNS_OK.

Verified using two terminals:

 Terminal 1			Terminal 2
 --------------------------	---------------------------------
 # ip netns add brcm-wifi	# iw dev
				phy#0
					Interface wlan3
						ifindex 11
						wdev 0x1
 # ip netns exec brcm-wifi bash
 # iw dev
 # echo $$
 20337			# iw phy0 set netns 20337
 # iw dev
 phy#0
	Interface wlan3
		ifindex 11
		wdev 0x2
 # iw phy0 interface add wl3.ap type __ap
 # iw dev
 phy#0
	Interface wl3.ap
		ifindex 2
		wdev 0x3
	Interface wlan3
		ifindex 11
		wdev 0x2
				# iw dev
 # iw phy0 set netns 1
 # iw dev
				# iw dev
				phy#0
					Interface wl3.ap
						ifindex 2
						wdev 0x5
					Interface wlan3
						ifindex 11
						wdev 0x4

Note:
	increasing wdev identifier above indicates issue in
	cfg80211 which is addressed separately.
Tested-by: NMark Asselstine <mark.asselstine@windriver.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: NFranky Lin <franky.lin@broadcom.com>
Reviewed-by: NHante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Move brcmf_fws_deinit into brcmf_proto_bcdc_detach since it is a bcdc
exclusive feature.
Signed-off-by: NFranky Lin <franky.lin@broadcom.com>
Reviewed-by: NArend Van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Create a new protocol layer interface brcmf_proto_init_cb for protocol
layer to finish initialzation after core module components(fweh and
etc.) are initialized.
Signed-off-by: NFranky Lin <franky.lin@broadcom.com>
Reviewed-by: NArend Van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Chip goes into low power state when this feature is enabled.
This was already enabled for SDIO and PCIe interface based
chipsets.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

USB firmware added support for sending command response/event through
interrupt endpoint, to enhance RX throughput. Added corresponding changes
required to support this feature. This change takes care of backward
compatibility with older firmware.
Signed-off-by: NGanapathi Bhat <gbhat@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

For quite some time now brcmfmac supports 802.11ac chipsets and it's
not limited to embedded devices only. There are even standalone PCIe
cards based on BCM43602 or BCM4366.
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Reviewed-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

ath.git patches for 4.12. Major changes:

ath10k

* improve firmware download time for QCA6174 and QCA9377, especially
  helps resume time

ath9k_htc

* add support AirTies 1eda:2315 AR9271 device

Basic support for MT7620 built-in wireless radio was added to
OpenWrt in r41441. It has seen some heavy cleaning and refactoring
since in order to match the Kernel's code quality standards.
Signed-off-by: NRoman Yeryomin <roman@advem.lv>
Signed-off-by: NDaniel Golle <daniel@makrotopia.org>
Acked-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer or accessing memory beyond the endpoint array should a
malicious device lack the expected endpoints.

Fixes: a1030e92 ("[PATCH] zd1211rw: Convert installer CDROM device into WLAN device")
Cc: Daniel Drake <dsd@gentoo.org>
Signed-off-by: NJohan Hovold <johan@kernel.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Some of the macros used to describe the TX_PWR_CFG_4 register accidentally
refer to TX_PWR_CFG_3, probably a copy&paste error. Fix that.
Signed-off-by: NDaniel Golle <daniel@makrotopia.org>
Acked-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

The check for rc < 0 is always false so the check is redundant
and can be removed.

Detected with CoverityScan, CID#101143 ("Logically dead code")
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Create a new protocol interface function brcmf_proto_reset_if for core
module to notify protocol layer when interface role changes.
Signed-off-by: NFranky Lin <franky.lin@broadcom.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Create a new protocol interface function brcmf_proto_del_if for core
module to notify protocol layer upon interface deletion.
Signed-off-by: NFranky Lin <franky.lin@broadcom.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

fwsignal is only used by bcdc. Create a new protocol interface function
brcmf_proto_add_if for core module to notify protocol layer upon a new
interface is created.
Signed-off-by: NFranky Lin <franky.lin@broadcom.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

brcmf_txcomplete is invoked by sdio and usb bus module which are using
bcdc protocol. So move it from core module into bcdc layer.
Signed-off-by: NFranky Lin <franky.lin@broadcom.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

brcmf_txflowblock is invoked by sdio and usb bus module which are using
bcdc protocol. This patch makes it a bcdc API instead of a core module
function.
Reviewed-by: NArend Van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NFranky Lin <franky.lin@broadcom.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

If a scan gets aborted BRCMF_SCAN_STATUS_BUSY gets cleared in
cfg->scan_status and when we receive an abort event from the firmware
the BRCMF_SCAN_STATUS_BUSY check in the cfg80211_escan_handler will
trigger resulting in multiple errors getting logged.

Check for a status of BRCMF_E_STATUS_ABORT and in this case simply
cleanly exit the cfg80211_escan_handler. This also avoids a
BRCMF_E_STATUS_ABORT event arriving after a new scan has been started
causing the new scan to complete prematurely without any data.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Acked-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

The country code gets set to "00" by default at boot, ignore this
rather then logging an error about it.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Acked-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Using pr_err for things which are not errors is a bad idea. E.g. it
will cause the plymouth bootsplash screen to drop back to the text
console so that the user can see the error, which is not what we
normally want to happen.

Instead add a new brcmf_info macro and use that.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Acked-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

So far we were attaching BRCMF_E_PSM_WATCHDOG event listener in
brcmf_debug_attach which gets compiled only with CONFIG_BRCMDBG. This
event means something went wrong and firmware / hardware usually can't
be expected to work (reliably).

Such a problem is significant for user experience so I believe we should
print an error unconditionally (even with debugging disabled). What can
be indeed optional is dumping bus memory as this is clearly part of
debugging process.

In the future we may also try to extend this listener by trying to
recover from the error or at least signal it to the cfg80211.
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

PCI devices can be described in DT as well so we should always execute
relevant code. This will make bcma e.g. set of_node for cores described
in DT.
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

A tiny code deduplication thanks to the bcma_bus_get_host_dev.
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

We already have the same check in bcma_of_get_irq which really calls
symbols available with CONFIG_OF_IRQ only. It appears this duplicated
check was accidentally added in commit c58d900c ("bcma: fix building
without OF_IRQ"). The rest of code in bcma_of_fill_device should work
fine without CONFIG_OF_IRQ.
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>