The chunk size used during firmware upload was set to 512, which is
the size of a single SDIO block (or two).  This is very inneficient
because we send one or two blocks only per SDIO transaction and don't
get the full benefits of sdio block transfers.

This patch increases the chunk size to 16K.  This more than doubles
the transfer speed both in wl127x and wl128x chips, with greater
impact on the latter:

wl127x:   512 bytes chunk -> ~132ms
        16384 bytes chunk ->  ~57ms
wl128x:   512 bytes chunk -> ~216ms
        16384 bytes chunk ->  ~37ms
Signed-off-by: Luciano Coelho <coelho@ti.com>

The sdio driver uses a block size of 512 bytes by default.  With our
card, this doesn't work correctly because it sets the block size FBR
in the chip too early (ie. before the chip is powered on).  Thus, if
we don't set it explicitly, block mode remains disabled in the chip.
If we try to send more data than fits in one block, the sdio driver
will split it into separate blocks before sending to the chip.  This
causes problems because the chip is not expecting multiple blocks.

At the moment this is not a problem, because we use chunks of 512
bytes for firmware upload and the data is always sent in byte mode.
In the next patch, we will change the chunk size to a bigger value, so
this patch is a preparation for that.
Signed-off-by: Luciano Coelho <coelho@ti.com>

SDIO blocksize alignment support is now the rule, not the exception.
To simplify the code in patches to come, invert the meaning of the
quirk to be negative (ie. the quirk is set if the device does _not_
support blocksize alignment).
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl->vif should be cleared on remove_interface()
(rather than on stop()) even when only a single
vif is supported, because during vif mode change
stop() might not get called (e.g. because of
monitor interface existence)
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

Add debugfs key to dump information regarding the
active vifs (similar to the driver_state debugfs key)
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

Enable beacon filtering on STA init, and don't disable it when entering
active mode. Otherwise dynamic-PS supports means we receive beacons from
the current AP during any Tx/Rx performed by the driver.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

The rate policies are configured only after association,
resulting in auth req being sent in wrong rates.

Reconfigure rate policies on bitrate mask change.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

Device role is always started along with ROC.
Couple them together by introducing new wl12xx_start_dev
and wl12xx_stop_dev functions.

By using these functions, we solve a bug that occured during
channel switch - we started the dev role on one channel, and
ROCed on a different one.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

Injected packets are sent with no vif, causing the wl12xx
to NULL-dereference in multiple places.

Furthermore, injected packets are currently not sent at all,
as system_hlid doesn't belong to any specific role, so
wl1271_skb_dequeue() never return its packets.

Handle both these problems.
Reported-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

There's no need to have the bus name included in the platform device
name that we create.  The core driver doesn't need to know about the
type of bus it uses.  Any differences between the buses that need to
be handled differently in the core, can be passed in the platform data
(as the pwr_in_suspend boolean does).

Use "wl12xx" for the device name in both bus drivers.  Rename the
platform driver name to "wl12xx_driver", just to differentiate from
the platform device names.
Signed-off-by: Luciano Coelho <coelho@ti.com>

mac80211 sets the carrier on an IBSS interface even when no network is
joined. Ignore garbage frames transmitted on a disconnected IBSS
interface without printing warnings.
Signed-off-by: Shahar Lev <shahar@wizery.com>
[merged with wlvif changes]
Signed-off-by: Luciano Coelho <coelho@ti.com>

To prevent a useless dependency between the spi module and the wl12xx
module, we need to replace the wl1271_error macros with dev_err.

At the same time, remove the SPI data hexdump, since this produces way
too much data and is not particularly useful.  There's no
print_hex_dump() equivalent for dynamic debug, so it's hard to control
when the dumps are printed out.
Signed-off-by: Luciano Coelho <coelho@ti.com>

To prevent a useless dependency between the sdio module and the wl12xx
module, we need to replace the wl1271_debug macros (and friends) for
dev_dbg and other equivalents.

At the same time, remove the SDIO data hexdump, since this produces
way too much data and is not particularly useful.  There's not
print_hex_dump() equivalent for dynamic debug, so it's hard to control
when the dumps are printed out.
Signed-off-by: Luciano Coelho <coelho@ti.com>

Separate the debugging macros and other definitions to a new debug.h
file.  This is be needed because the sdio and spi modules don't need
to depend on the wl12xx module anymore, but still need to include
wl12xx.h.  Currently they do depend on it, because of the debugging
global that wl12xx exports.  A future patch will remove this
dependency.
Signed-off-by: Luciano Coelho <coelho@ti.com>

now that useless plat_dev is unnecessary,
we can remove it.
Signed-off-by: Felipe Balbi <balbi@ti.com>
[forward ported and fixed sysfs file creation]
Signed-off-by: Luciano Coelho <coelho@ti.com>

after re-factoring a bunch of symbols are only
used inside main.c which allows us to mark
them as static.
Signed-off-by: Felipe Balbi <balbi@ti.com>
[forward-ported]
Signed-off-by: Luciano Coelho <coelho@ti.com>

Move all common parts from sdio.c and spi.c to main.c, since they now
can be handled as part of the platform driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
[forward-ported, cleaned-up and rephrased commit message]
[added a bunch of fixes and a new pdata element]
[moved some new code into main.c as well]
Signed-off-by: Luciano Coelho <coelho@ti.com>

Nnow that we have a platform_device on both glue layers, add a
platform_driver to the core driver.

It's currently an empty platform_driver but more functionality will be
added on later patches.
Signed-off-by: Felipe Balbi <balbi@ti.com>
[forward-ported, cleaned-up and rephrased commit message]
[added platform_driver.driver initialization]
Signed-off-by: Luciano Coelho <coelho@ti.com>

The platform device will be used to match the platform driver that
will be implemented by the core module.
Signed-off-by: Felipe Balbi <balbi@ti.com>
[forward-ported, cleaned-up and rephrased commit message]
[call platform_device_add() instead of platform_device_register()]
[store alloc'ed device platform directly in glue->core]
[fixed the length of memset(res...)]
Signed-off-by: Luciano Coelho <coelho@ti.com>

The platform device will be used to match the platform driver that
will be implemented by the core module.
Signed-off-by: Felipe Balbi <balbi@ti.com>
[forward-ported, cleaned-up and rephrased commit message]
[call platform_device_add() instead of platform_device_register()]
[store alloc'ed device platform directly in glue->core]
[fixed the length of memset(res...)]
Signed-off-by: Luciano Coelho <coelho@ti.com>

In order to fully abstract the bus, we need to save the device
structure *beside* wl1271, instead of inside it.

This will help re-structuring the driver so that we avoid the
duplicated code in the bus modules.
Signed-off-by: Felipe Balbi <balbi@ti.com>
[forward-ported and cleaned up and rephrased commit message]
Signed-off-by: Luciano Coelho <coelho@ti.com>

In order to fully abstract the bus, we need to save the device
structure *beside* wl1271, instead of inside it.

This will help re-structuring the driver so that we avoid the
duplicated code in the bus modules.
Signed-off-by: Felipe Balbi <balbi@ti.com>
[forward-ported and cleaned up and rephrased commit message]
Signed-off-by: Luciano Coelho <coelho@ti.com>

This module has been causing more trouble than being useful.  It only
tests the SDIO speed by connecting to the wl12xx chip and does some
throughput calculations.  It is an ugly quick hack and, if we really
want to have it as part of wl12xx we need to clean it up and implement
it properly.

A tarball of the code has been created and posted here, with some
instructions:

http://wireless.kernel.org/en/users/Drivers/wl12xx#SDIO_performance_test_moduleSigned-off-by: Luciano Coelho <coelho@ti.com>

Currently, a single vif might starve all the other vifs.
Save the last vif we dequeued a packet from, and continue
with the following one using a round-robin policy.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

add_interface might be called while the chip is
in elp. add elp_wakeup/sleep calls to handle it.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

allocate the rate policies dynamically, instead of using hardcoded
indexes. this is needed for proper multi-role configuration.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

The recovery work should call stop() after it removed
all the existing interfaces.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl->vif is appropriate only when a single vif is being used.
Instead, pass wlvif as parameter or iterate through all
the vifs (e.g. when a global configuration was changed)

Leave wl->vif only to determine whether a vif was already
added (this check will be removed as well after both the
driver and fw will support multiple vifs)
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

When mac80211 changes a global (hw) config, iterate
through all the relevant vifs and update them.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

move power_level into the per-interface data.

mac80211 configures some values (e.g. band, channel)
globally, while we configure them per-interface.

In order to make it easier to keep track of the
configured value for each value while keeping sync
with mac80211, save these values both globally
and per-vif.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

add channel into the per-interface data.

mac80211 configures some values (e.g. band, channel)
globally, while we configure them per-interface.

In order to make it easier to keep track of the
configured value for each value while keeping sync
with mac80211, save these values both globally
and per-vif.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

add band field into the per-interface data.

mac80211 configures some values (e.g. band, channel)
globally, while we configure them per-interface.

In order to make it easier to keep track of the
configured value for each value while keeping sync
with mac80211, save these values both globally
and per-vif.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

This flag should be set per-vif, rather than globally.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

This flag should be set per-vif, rather than globally.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

Make the initialization flag per-vif, and add some checks for it.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

This flag should be set per-vif, rather than globally.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

This flag should be set per-vif, rather than globally.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

move WL1271_FLAG_PSM and WL1271_FLAG_PSM_REQUESTED into
per-vif flags.
These flags should be set per-vif, rather than globally.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

This flag should be set per-vif, rather than globally.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

This flag should be set per-vif, rather than globally.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>