This patch adds code to report wakeup reason to cfg80211
when system is resumed.
Signed-off-by: Nchunfan chen <jeffc@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

It's better to use world if region code from EEPROM is
unidentied instead of forcing it to FCC
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Part of reorganising wireless drivers directory and Kconfig.
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

System crash was observed if one of the driver initialisation
commands is timed out. The reason is our timeout handler triggers
firmware dump, meanwhile driver initialisation error paths have
already freed the adapter structure.

Firmware hasn't yet completely initialized. So collecting firmware
dump is not needed in this case. Command timeout handler is
modified in this patch to fix the crash issue.
Signed-off-by: NZhaoyang Liu <liuzy@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

600f5d90("mwifiex: cleanup ioctl wait queue and abstraction layer")
introduced the wakeup_interruptible suppression in mwifiex_complete_cmd
b1a47aa5("mwifiex: fix system hang issue in cmd timeout error case")
then added wakup_interruptible to mwifiex_cmd_timeout_func the single
place setting a status of ETIMEDOUT.
Instead of doing extra work, using the standard call-chain will have the
same effect:
mwifiex_cancel_pending_ioctl
-> mwifiex_recycle_cmd_node
-> mwifiex_insert_cmd_to_free_q
-> mwifiex_complete_cmd
-> wake_up_interruptible

The difference is that previously the condition was not set to true,
but that's probably just an oversight in b1a47aa5 and shouldn't
have any consequence
Signed-off-by: NAndreas Fenkart <afenkart@gmail.com>
Acked-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

CMD_F_CANCELED was used to abort mwifiex_process_cmdresp in
case it already started or starts processing the cmd.
But this was probably not working the way intended:
- it is racy: mwifiex_process_cmdresp might already have passed that
  test and is continuing to use the cmd node being recycled
- mwifiex_process_cmdresp repeatedly uses adapter->curr_cmd which
  we just set to NULL
- mwifiex_recycle_cmd_node will clear the flag

The reason why it probably works is that mwifiex_cancel_pending_ioctl
is only called from mwifiex_cmd_timeout_func, where the there is little
chance of a command response still arriving
Signed-off-by: NAndreas Fenkart <afenkart@gmail.com>
Acked-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

mwifiex_cancel_pending_ioctl is called only from
mwifiex_cmd_timeout_func. There the wait_q status is set to
-ETIMEDWAIT before calling this function. Whether we reset the status
to -1 or leave it at -ETIMEDWAIT at end doesn't matter since both
are != 0 hence mean failure
Signed-off-by: NAndreas Fenkart <afenkart@gmail.com>
Acked-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

standard call chain when releasing a cmd node:
mwifiex_recycle_cmd_node
-> mwifiex_insert_cmd_to_free_q
-> mwifiex_complete_cmd, if wait_q_enabled

calling mwifiex_complete_cmd explicitly and setting
wait_q_enabled = false is redundant
Signed-off-by: NAndreas Fenkart <afenkart@gmail.com>
Acked-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch fixes semantic warning for debugging data dump feature.
Previous code is based on the assumption that skb is not null.
New change makes sure that we already have data buffer.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NZhaoyang Liu <liuzy@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch add sta_list firmware command, which can be used
to get power status and rssi for the stations associated to
mwifiex micro AP.
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This would enable clearing of FW bss data structures when AP
operations are stopped.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Currently we are dumping driver information also inside
firmware dump API. We will call it as device dump and
dump driver and firmware data separately.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch changes all debug print functions from dev_dbg/dev_err/dev_info
to mwifiex specific debug functions.
Signed-off-by: NZhaoyang Liu <liuzy@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch is to add support for data hexdump debug feature.
It is controlled by level debug_mask in adapter structure.
Signed-off-by: NZhaoyang Liu <liuzy@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch adds support to handle PS events on AP interface as well.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This would be used to set mac address while changing virtual
interface to different types.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

As we are releasing the lock, during next iteration we may end
up getting page fault if other thread has already deleted that
node.
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

With scan channel gap when any station/AP is active, FW comes back
to connected channel for any pending data transfter after scanning each
channel.
We set scan channel gap TLV to FW in scan command when any of the
interface is active. This enables scan channel gap in FW.
Also when scan channel gap is enabled, we would scan maximum channels
allowed by FW.

Scan channel gap is supported only on FW with V15 FW API.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NMarc Yang <yangyang@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

If we dont set FW API info here, for older FW releases where FW API
is not available in GET_HW_SPEC, API version would remain 0.
This may cause issues with 11ac if older FW is used with newer driver.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Newer firmware returns API revision in GET_HW_SPEC command
response. We will make use of it instead of parsing this
information from FW release number.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We will remove 'fw' prefix from these variable and macro
names and make them generic.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

While updating 'left_len' in each iteration, we should subtract
last TLV length not the accumulated length of TLVs parsed till
now.
This bug in parsing logic is exposed by newer firmware which adds
two TLVs in GET_HW_SPEC command response. Earlier firmwares used to
add only one TLV.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We don't need wall-clock time here, and in most configurations
that care, there are already timestamps in the kernel using
CONFIG_PRINTK_TIME=y.
Reported-by: NPaul Stewart <pstew@chromium.org>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

There are few places at the begining of Tx/Rx paths where
tx_info/rx_info is not correctly initialized. This patch
takes care of it.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Sleep Confirm command is sent separately while other commands
are handled through cmd_pending_q. Print sleep_confirm cmd and
its response as well as power save events so that we have a
clearer picture of power save handshake in driver log.
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch updates mwifiex Copyright to 2014.
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Firmware dump feature is added for PCIe based chipsets which can
be used with the help of ethtool commands.

1) Trigger firmware dump operation:
ethtool --set-dump mlan0 0xff

When the operation is completed, udev event will be sent to
trigger external application.

2) Following udev rule can be used to get the data from ethtool:
DRIVER=="mwifiex_pcie", ACTION=="change", RUN+="/sbin/mwifiex_pcie_fw_dump.sh"

mwifiex_pcie_fw_dump.sh: #!/bin/bash
ethtool --set-dump mlan0 0
ethtool --get-dump mlan0
ethtool --get-dump mlan0 data /tmp/ITCM.log

ethtool --set-dump mlan0 1
ethtool --get-dump mlan0
ethtool --get-dump mlan0 data /tmp/DTCM.log

ethtool --set-dump mlan0 2
ethtool --get-dump mlan0
ethtool --get-dump mlan0 data /tmp/SQRAM.log

ethtool --set-dump mlan0 3
ethtool --get-dump mlan0
ethtool --get-dump mlan0 data /tmp/IRAM.log
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This reverts commit e050c76f.

I'm not sure what crack pipe I was using when I merged this...
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Firmware dump feature is added for PCIe based chipsets.
Separate file will be created at /var/log/fw_dump_*
for each memory segment.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

When command timeout occurs due to a firmware/hardware bug,
there is no chance of next command being successful. We will
keep cmd_sent flag on so that next command won't be sent to
firmware.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

[ 6630.450908] BUG: spinlock bad magic on CPU#1,
               ksdioirqd/mmc1/355
[ 6630.450914] Unable to handle kernel NULL pointer dereference
               at virtual address 0000004f
[ 6630.450919] pgd = ecbd8000
[ 6630.450926] [0000004f] *pgd=00000000
[ 6630.450936]  lock: 0xeea4ab08, .magic: 00000000,
               .owner: <none>/-1, .owner_cpu: 0
[ 6630.450939] Backtrace:
[ 6630.450956] [<c010d354>] (unwind_backtrace+0x0/0x118) from
               [<c060c238>] (dump_stack+0x28/0x30)
[ 6630.450960] Internal error: Oops: 5 [#1] SMP ARM
[ 6630.450964] Modules linked in: uvcvideo videobuf2_vmalloc
[ 6630.450980] [<c060c238>] (dump_stack+0x28/0x30) from
               [<c0315ab4>] (spin_dump+0x80/0x94)
[ 6630.450988] [<c0315ab4>] (spin_dump+0x80/0x94) from
               [<c0315af4>] (spin_bug+0x2c/0x30)
[ 6630.450996] [<c0315af4>] (spin_bug+0x2c/0x30) from
               [<c0315b80>] (do_raw_spin_lock+0x28/0x15c)
[ 6630.451004] [<c0315b80>] (do_raw_spin_lock+0x28/0x15c) from
               [<c0610c24>] (_raw_spin_lock_irqsave+0x20/0x28)
[ 6630.451016] [<c0610c24>] (_raw_spin_lock_irqsave+0x20/0x28)
               from [<bf07a7f4>] (mwifiex_exec_next_cmd
                                  +0x6c/0x45c [mwifiex])
[ 6630.451030] [<bf07a7f4>] (mwifiex_exec_next_cmd+0x6c/0x45c
               [mwifiex]) from [<bf07834c>]
               (mwifiex_main_process+0x2c8/0x464 [mwifiex])
[ 6630.451047] [<bf07834c>] (mwifiex_main_process+0x2c8/0x464
               [mwifiex]) from [<bf0a093c>]
               (mwifiex_sdio_interrupt+0xc8/0x1cc [mwifiex_sdio]
[ 6630.451064] [<bf0a093c>] (mwifiex_sdio_interrupt+0xc8/0x1cc
               [mwifiex_sdio]) from [<c04bbde0>]
               (sdio_irq_thread+0x178/0x31c)
[ 6630.451079] [<c04bbde0>] (sdio_irq_thread+0x178/0x31c) from
               [<c0145514>] (kthread+0xc8/0xd8)
[ 6630.451095] [<c0145514>] (kthread+0xc8/0xd8) from
               [<c0106118>] (ret_from_fork+0x14/0x20)

This bug has introduced/exposed due to recent patch in which we
cancel pending commands before suspend (using hs_enabling flag).
The NULL pointer is dereferenced when both
mwifiex_cancel_all_pending_cmd() and mwifiex_exec_next_cmd()
try to access cmd pending queue simultaneously.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Sometimes we may end up downloading other commands when host
sleep is configured. This patch makes sure that pending
commands are cancelled and we stop queueing further commands
during host sleep.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Incremented sequence number was not being used for SLEEP confirm
command. This patch fixes the issue.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The firmware API version number will be used for future patches
to support different firmware API specs.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Even if the device is changed to 1X1 mode, data is sent with
higher MCS rates after association.

This patch fixes the problem by updating MCS information field
in HT capability when antenna setting changes so that correct
information will be advertised in association and probe request.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Command timeout happens when firmware goes into bad state.
There is no chance that next command will be successful after
this. Hence we will maintain a flag instead of count.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We already have one in mwifiex_adapter structure.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds a check in command preparation routine.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We skip downloading other commands after FUNC_SHUTDOWN is queued
during driver unload. Main thread should be woken up each time
after freeing skipped command so that FUNC_SHUTDOWN gets served
in case if there are other pending commands before FUNC_SHUTDOWN.
Also, call mwifiex_complete_cmd() only for synchronous commands.
Reported-by: NAvery Pennarun <apenwarr@gmail.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NMaithili Hinge <maithili@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

mwifiex_cancel_pending_ioctl() and
mwifiex_cancel_all_pending_cmd() are called in command timeout
and driver unload paths respectively.
If scan operation is in progress, we should abort it smoothly.
Reported-by: NTim Shepard <shep@alum.mit.edu>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>