Track freed FW blocks during Tx. If no blocks were freed during a
predefined timeout, initiate a HW recovery. This helps in situations
when the FW watchdog fails.

Don't trigger recovery during activities that can temporarily stop
Tx. This includes:
- scanning
- buffering packets for sleeping stations (AP role)
- ROC on any role
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Split scan allows the FW to schedule other activities
during a scan which may be a long operation. This is
achieved by setting a trigger TID to ANY_TID and a scan
trigger timeout other than 0. The default one is set to 50ms.
Signed-off-by: NEyal Shapira <eyal@wizey.com>
Signed-off-by: NIgal Chernobelsky <igalc@ti.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

For certain WiFi certification tests forcing PS
is necessary. Since DPS is now enabled in the FW
and this can't be achieved by using netlatency
this required a new config option.
Signed-off-by: NEyal Shapira <eyal@wizery.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Added ability to set different wake up conditions for suspend/resume.
Set default values to wake up every 3 DTIMs while suspended
and every 1 DTIM while resumed
Signed-off-by: NEyal Shapira <eyal@wizery.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

new params were added to the coex params.
Add them with default value of 0.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

New FW reports usage of short GI as a rate class index. Check for
this rate and set the IEEE80211_TX_RC_SHORT_GI if used.
Signed-off-by: NPontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

IEEE80211_TX_RC_MCS was not set correctly leading to incorrect link
speed calculation.
Signed-off-by: NPontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: NIdo Reis <idor@ti.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

FW now supports dynamic PS so we don't need to use mac80211 support.
FW will go to PSM after a specified timeout with no Rx/Tx traffic.
- Changed FW API to include new PS mode (AUTO_MODE) and including timeout parameter
- The default PS mode would be dynamic PS
- Default timeout is 100ms (same as it used to be in mac80211)
- Avoid using mac80211 APIs to disable/enable dynamic PS as we're not
using mac80211 PS control anymore.
- COEX is handled by the FW while in dynamic PS so removed
handling of SOFT_GEMINI
Signed-off-by: NEyal Shapira <eyal@wizery.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Removal of PS management code from the driver as PS
is handled by the FW (dynamic PS)
Signed-off-by: NEyal Shapira <eyal@wizery.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Set the TX rate of probe requests during scanning according to the
no_cck flag in the scan request struct.
Signed-off-by: NGuy Eilam <guy@wizery.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

p2p packets should go out only with OFDM rates.

Configure a new rate policy that will (later) be used
during p2p_find (when the p2p_cli / p2p_go interfaces
are in use, we won't have to use this policy, as
the configured rates should already be OFDM-only).

Additionally, update CONF_TX_MAX_RATE_CLASSES to reflect
the current value from the fw api.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

We were including only 11b rates in IBSS mode.  This patch adds OFDM
rates.

[Rephrased commit log and removed one unnecessary comment. -- Luca]
Signed-off-by: NShahar Levi <shahar_levi@ti.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Add wl12xx_acx_config_hangover() and respective conf values.
This command configures how long the chip will stay awake
after it was configured to enter psm.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Unconditionally configure HT rate support to the FW on all ACs
when starting the AP.

When 11n support is disabled by usermode (hostapd), each STA joining
the AP will appear as a non-HT STA. This will stop us from accidentally
transmitting using MCS rates.
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Incorporate interface changes for HT support.

Add ba_bitmap field to the wl1271_link struct, to indicate
activate RX BA sessions (for AP mode).
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

The BT coex params api have been changed.
Update it, and init coex for both sta and ap.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Configure rate management parameters on hw init
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

In AP mode we register for the MAX_TX_RETRY and INACTIVE_STA events.
Both are reported to the upper layers as a TX failure in the offending
stations.
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

A recently added feature to the firmware enables the driver to retrieve
firmware logs via the host bus (SDIO or SPI).

There are two modes of operation:
1. On-demand: The FW collects its log in an internal ring buffer. This
   buffer can later be read, for example, upon recovery.
2. Continuous: The FW pushes the FW logs as special packets in the RX
   path.

Reading the internal ring buffer does not involve the FW. Thus, as long
as the HW is not in ELP, it should be possible to read the logs, even if
the FW crashes.

A sysfs binary file named "fwlog" was added to support this feature,
letting a monitor process read the FW messages. The log is transferred
from the FW only when available, so the reading process might block.
Signed-off-by: NIdo Yariv <ido@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

When rx_streaming.interval is non-zero, use automatic rx streaming.
Enable rx streaming on the each rx/tx packet, and disable it
rx_streaming.duration msecs later.

When rx_streaming.always=0 (default), rx streaming is enabled only
when there is a coex operation.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

wl12xx supports the "rx streaming" feature:

When in ps mode, and @timeout msecs have been passed since
the last rx/tx, it issues trigger packets (QoS-null/PS-Poll packets,
according to the ac type) in const intervals (in order to reduce
the rx time).
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Use a different value for DFS dwell time when performing a scheduled
scan.  Previously we were using the same value as for normal passive
scans.  This adds some flexibility between these two different types
of passive scan.

For now we use 150 TUs for DFS channel dwell time.  This may need to
be fine-tuned in the future.
Signed-off-by: NLuciano Coelho <coelho@ti.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Add the structures and values for driver-configured scheduled scan
parameters.
Signed-off-by: NLuciano Coelho <coelho@ti.com>

This reverts commit 47684808.

Conflicts:

	drivers/net/wireless/wl12xx/conf.h
	drivers/net/wireless/wl12xx/main.c

Use the minimal rate configured in the basic rates set as the AP
broadcast and multicast rate. The minimal rate is used to ensure weak
links can still communicate.

When the basic rates contains at least one OFDM rate, configure all
unicast TX rates to OFDM only.

Unify rate configuration on initialization and on change notification
into a single function.
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Initialize AP specific BT coexitance parameters to default values and
enable them in AP mode.
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Add support to FM WLAN coexistence (STA only).  Some WiFi harmonics
may interfere with FM operation, to avoid this problem special
coexistence techniques are activated around some FM frequencies.
Signed-off-by: NShahar Levi <shahar_levi@ti.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

When working in ibss mode, we don't configure rate policy per station
(as we use the same link for multiple stations), so currently the
1mb/s rate is being used.

Instead, configure the firmware to use the whole 11b rates by default.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

In AP mode we register for the MAX_TX_RETRY and INACTIVE_STA events.
Both are reported to the upper layers as a TX failure in the offending
stations.

In STA mode we register only for the MAX_TX_RETRY event. A TX failure is
interpreted as a loss of connection.

Support for IEEE80211_HW_REPORTS_TX_ACK_STATUS has been removed to avoid
the inherent race condition of a mac80211 TX failure counter in addition
to the FW counter.

This patch depends on "mac80211: allow low level driver to report packet
loss"
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This structure has not been used anymore since commit
e6b190ff.
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Instead of hardcoding the hci_io_ds configuration that we write to the
SDIO_IO_DS top registed, read it from the default configuration so
that it's easier to change for different platforms.
Reported-by: NIdo Yariv <ido@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Separate the memory configuration to chip-specific structures and
implement dynamic memory for wl128x.

This feature allows us to move TX memory blocks to the RX pool when
the RX path is overloaded.

Thanks for Arik Nemtsov <arik@wizery.com> for helping simplify the
wl1271_fw_status() code.

[Rewrote the commit subject and message for clarity; improved some
comments and changed "spare" to "padding" for consistency; added a
FIXME for the AP memory configuration -- Luca]
Signed-off-by: NShahar Levi <shahar_levi@ti.com>
Reviewed-by: NLuciano Coelho <coelho@ti.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Definitions to support wl128x:
  - New FW file name
  - Chip ID
  - New PLL Configuration Algorithm macros that will be used at wl128x
    boot stage
  - Rename NVS macro name: wl127x and wl128x are using the same NVS
    file name. However, the ini parameters between them are
    different. The driver will validate the correct NVS size in
    wl1271_boot_upload_nvs().

[Cleaned up some of the definitions. -- Luca]
Signed-off-by: NShahar Levi <shahar_levi@ti.com>
Reviewed-by: NLuciano Coelho <coelho@ti.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: NLucas De Marchi <lucas.demarchi@profusion.mobi>

make the configuration management more flexible by using the
conf struct, rather than predefined macros.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Reviewed-by: NLuciano Coelho <coelho@ti.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

This patch adds support for the new wl12xx firmware (Rev 6.1.3.50.49)

Since this fw is not backward compatible with previous fw versions,
a new fw (with different name) is being fetched.

(the patch is big because it contains all the required fw api changes.
splitting it into multiple patches will result in corrupted intermediate
commits)
Signed-off-by: NEliad Peller <eliad@wizery.com>
Reviewed-by: NLuciano Coelho <coelho@ti.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

mcp2.5 uses this acx to configure the fw only once, rather than
passing the params in every enter psm command.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Reviewed-by: NLuciano Coelho <coelho@ti.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

The passive scan channel dwell time currently used is 30-60TU. A typical
beacon interval for AP's is 100TU. This leads to a ~30% worst-case probability
of finding an AP via passive scanning.

For 5GHz bands for DFS frequencies passive scanning is the only scanning
option. Hence for these, the probability of finding an AP is very low.

To fix this, increase the passive channel scan dwell times (also the early
leave value, as 5GHz channels are still typically very silent.) Use a value
of 100TU, because that covers most typical AP configurations.

Based on testing the probability of finding an AP (100TU beacon interval) on
a single scan round are as follows (based on 100 iterations):

dwell min/max (TU)   | probability
---------------------+------------
30/60                | 35%
60/60                | 56%
80/80                | 77%
100/100              | 100%

Total scan times now and after the change:

Region | Before (s) | After (s)
-------+------------+----------
00     | 0.77       | 1.48
FI     | 0.95       | 2.01
US     | 0.91       | 1.76
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NLuciano Coelho <coelho@ti.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Add 80211n BA initiator session support wl1271 driver.
Include BA supported FW version auto detection mechanism.
BA initiator session management included in FW independently.
Signed-off-by: NShahar Levi <shahar_levi@ti.com>
Reviewed-by: NLuciano Coelho <coelho@ti.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Add AP max retries and rate policy configuration.
Rename STA rate policy configuration function.
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Reviewed-by: NLuciano Coelho <coelho@ti.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>