wl12xx build fails with many undefined symbol errors when MAC80211
and CFG80211 are not enabled, so make WLCORE and WL12XX depend
on MAC80211 (which already depends on CFG80211).

Here are a few of the many build errors:

drivers/built-in.o: In function `wl1271_register_hw':
main.c:(.text+0x4197cd): undefined reference to `ieee80211_register_hw'
drivers/built-in.o: In function `wl1271_rx_streaming_timer':
main.c:(.text+0x419818): undefined reference to `ieee80211_queue_work'
drivers/built-in.o: In function `wl1271_flush_deferred_work':
main.c:(.text+0x419910): undefined reference to `ieee80211_rx'
main.c:(.text+0x419938): undefined reference to `ieee80211_tx_status'
drivers/built-in.o: In function `wl12xx_op_channel_switch':
main.c:(.text+0x419afc): undefined reference to `ieee80211_chswitch_done'
drivers/built-in.o: In function `wl1271_ssid_set':
drivers/built-in.o: In function `wl1271_event_process':
event.c:(.text+0x41fec4): undefined reference to `ieee80211_sched_scan_stopped'
event.c:(.text+0x41ff88): undefined reference to `ieee80211_cqm_rssi_notify'
event.c:(.text+0x42000d): undefined reference to `ieee80211_stop_rx_ba_session'
event.c:(.text+0x420048): undefined reference to `ieee80211_stop_rx_ba_session'
event.c:(.text+0x4200b8): undefined reference to `ieee80211_chswitch_done'
event.c:(.text+0x4201ae): undefined reference to `ieee80211_find_sta'
event.c:(.text+0x4201ba): undefined reference to `ieee80211_report_low_ack'
event.c:(.text+0x42021b): undefined reference to `ieee80211_connection_loss'
drivers/built-in.o: In function `wl1271_tx_complete_packet':
tx.c:(.text+0x4206a6): undefined reference to `ieee80211_get_hdrlen_from_skb'
drivers/built-in.o: In function `wl1271_tx_fill_hdr':
tx.c:(.text+0x4208ca): undefined reference to `ieee80211_hdrlen'
drivers/built-in.o: In function `wl1271_handle_tx_low_watermark':
(.text+0x420e25): undefined reference to `ieee80211_wake_queue'
drivers/built-in.o: In function `wl12xx_rearm_rx_streaming':
(.text+0x420ed9): undefined reference to `ieee80211_queue_work'
drivers/built-in.o: In function `wl1271_tx_work_locked':
(.text+0x421008): undefined reference to `ieee80211_free_txskb'
drivers/built-in.o: In function `wl1271_rx_status.clone.2':
rx.c:(.text+0x421593): undefined reference to `ieee80211_channel_to_frequency'
drivers/built-in.o: In function `wl1271_ps_filter_frames':
ps.c:(.text+0x421a41): undefined reference to `ieee80211_tx_status'
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>
Cc:	Luciano Coelho <coelho@ti.com>
Cc:	linux-wireless@vger.kernel.org
Cc:	"John W. Linville" <linville@tuxdriver.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

GFP_DMA isn't supposed to be used by itself.  This allocation is allowed
to sleep so it should be ORing it with GFP_KERNEL.
Also we should check for allocations errors.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

We should release this lock before returning.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Use FW RX data filters to support cfg80211 wowlan wakeup patterns.
This enables to wake up the host from suspend following detection
of certain configurable patterns within an incoming packet.
Up to 5 patterns are supported. Once the host is resumed
any configured RX data filter is cleared.
A single pattern can match several bytes sequences with different
offsets within a packet.
Signed-off-by: NEyal Shapira <eyal@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

More prep work to support wowlan wakeup patterns.
Added some wrappers that also keep the current filters state
updated in the driver.
Signed-off-by: NEyal Shapira <eyal@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

More prep work for wowlan patterns.
Added ACXs to set global RX filter behavior and
enable or disable a specific filter.
Signed-off-by: NEyal Shapira <eyal@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

This is prep work for the support of wowlan patterns
using the FW data rx filters mechanism.
Added an rx filter struct and some util functions
required to manipulate it.
Signed-off-by: NEyal Shapira <eyal@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

GFP_DMA should not be used by itself, it still needs GFP_KERNEL or
such.  Fix two occurrences of allocations with GFP_DMA only.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

The NFC core code already does that for them.
Signed-off-by: NEric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The pn544_hci driver uses the kernel NFC APIs while pn544 does not.
Moreover pn544 is outdated and not maintained.
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This is an NFC driver for NXP pn544.
Unlike pn544.c, this one is based on the NFC HCI and SHDLC kernel layers.
Signed-off-by: NEric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The variable 'nfc_genl_family' is only referenced in this file and
should be marked static to prevent it from being exposed globally.

Quites the sparse warning:

warning: symbol 'nfc_genl_family' was not declared. Should it be static?
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The variable 'hci_nfc_ops' is only referenced in this file and
should be marked static to prevent it from being exposed globally.

Quites the sparse warning:

warning: symbol 'hci_nfc_ops' was not declared. Should it be static?
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Pointers should be cleared with NULL, not 0.

Quiets a couple sparse warnings of the type:

warning: Using plain integer as NULL pointer
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Include the header to pickup the exported symbol prototype.

Quites the sparse warning:

warning: symbol 'nci_to_errno' was not declared. Should it be static?
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
CC: Samuel Ortiz <sameo@linux.intel.com>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Pointers should be cleared with NULL, not 0.

Quiets a couple sparse warnings of the type:

warning: Using plain integer as NULL pointer
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

nfc_llcp_general_bytes is defined in nfc/core.c as:
nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *gb_len).

as in nfc/nfc.h:
nfc_llcp_general_bytes(struct nfc_dev *dev, u8 *gb_len), if CONFIG_NFC_LLCP
is not defined.

so we got some warnings,
net/nfc/core.c:207:2: warning: passing argument 2 of ‘nfc_llcp_general_bytes’ from incompatible pointer type [enabled by default]
net/nfc/nfc.h:87:19: note: expected ‘u8 *’ but argument is of type ‘size_t *’
Signed-off-by: Njoseph daniel <josephdanielwalter@gmail.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Otherwise an LLCP send() always returns 0.
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Fix the poll mask depending on the socket state. POLLOUT was missing
for example.
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Blocking sockets should sleep on a CC (Connection Complete) reception
from the connect() call.
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

container_of() works by subtracting the offset of the member.  The math
can't really return a zero here.  Sometimes people check it when they
actually meant to check something else but in this case we can just
remove the check.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Document the new HCI ops and fix a few typos and spelling mistakes.
Signed-off-by: NEric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NEric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

It is now specified that nfc_target_found() and nfc_target_lost() core
functions must not be called from an atomic context. This allow us to
serialize calls and protect the targets table using the nfc device lock
instead of a spinlock.
Signed-off-by: NEric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NEric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The NFC Core now caches the active nfc target pointer, thereby avoiding
the need to lookup the target table for each invocation of a driver ops.
Consequently, pn533, HCI and NCI now directly receive an nfc_target
pointer instead of a target index.

Cc: Ilan Elias <ilane@ti.com>
Signed-off-by: NEric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NZefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

There is a dummy read of a PCI MMIO register that occurs before the SSB bus
has been powered, which is an error. This bug has not been seen earlier,
but was apparently exposed when udev was updated to version 182.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Use the newly introduced brcmf_sdio_regrl to replace
brcmf_sdioh_card_regread as part of the SDIO WiFi dongle register
access interface clean up.
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NFranky Lin <frankyl@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The new interface brcmf_sdio_regr/w provides result of access
attempts. It is no longer necessary to use dedicated variable
and function to provide enquiry for failure.
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NFranky Lin <frankyl@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The new brcmf_sdio_regrl/regwl interface has already performed
retries on failed attempts. It is no longer necessary to have the
retry mechanism in r_sdreg32/w_sdreg32.
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NFranky Lin <frankyl@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Use the newly introduced brcmf_sdio_regwl to replace
brcmf_sdcard_reg_write as part of the SDIO WiFi dongle register
access interface clean up.
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NFranky Lin <frankyl@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Use the newly introduced brcmf_sdio_regrl to replace
brcmf_sdcard_reg_read as part of the SDIO WiFi dongle register
access interface clean up.
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NFranky Lin <frankyl@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Use the newly introduced brcmf_sdio_regwb to replace
brcmf_sdcard_cfg_write as part of the SDIO WiFi dongle register
access interface clean up.
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NFranky Lin <frankyl@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Use the newly introduced brcmf_sdio_regrb to replace
brcmf_sdcard_cfg_read as part of the SDIO WiFi dongle register
access interface clean up.
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NFranky Lin <frankyl@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Both brcmf_sdcard_cfg_read/write and brcmf_sdcard_reg_read/write
are used as interface functions for register access of SDIO WiFi
dongle. A unified interface brcmf_sdio_regr/w is introduced in
this patch in order to simplify the interface and keep the
complexity within the lower layer.
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NFranky Lin <frankyl@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

brcmf_sdcard_set_sbaddr_window configures 3 registers on SDIO
function misc bank to change current silicon backplane programming
window. This patch makes it call brcmf_sdioh_request_byte directly
in order to prepare for the write register interface unification.
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NFranky Lin <frankyl@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The size parameter for brcmf_sdcard_reg_write is always 4. Remove it
to make the code cleaner.
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NFranky Lin <frankyl@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The size parameter for brcmf_sdcard_reg_read is always 4. Remove it
to make the code neat.
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NFranky Lin <frankyl@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes multiple issues with the current RTT
implementation in ath9k.

* The data that is obtained from the RTT interface registers
  are stored in 31:5 - mask out the extra bits when reading them.

* A history buffer is maintained which is not needed at all.
  Remove this array and just store the baseband data for each
  chain (or bank).

* A 'num_readings' variable was being used to handle the
  last entry. But it was being used in an improper manner, with
  the result that the RTT values were never being written
  to the RTT Interface registers. Fix this by using a simple
  flag.

* Stop baseband operations before programming the calibration values
  to the HW.

* Do not restore RX gain settings as part of RTT.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>