TX command frame ampdu aggregation parameters is updated to
include sta_id for AP mode.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Auto rate frame is sent to firmware when a new station is
connected. Station id and station's ht capabilities are updated
in auto rate command frame.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

TX command frame auto rate request is modified to use common
descriptor struture.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Station id needs to be get for data and management frames
to fill in the descruptor for AP mode. Few other changes
related to AP mode are covered here.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

When sta_remove of mac80211 is called, driver iterates through
list of existing stations to get the station id. Then peer notify
is prepared and send to firmare.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Station structures are maintained in driver with required
fields. When mac80211 callback sta_add is called, driver
iterates through list of connected stations to check available
index and assigns station id which is important for further
communication to that station. Then peer notify frame is send
to firmware to inform the firmware about new station connection.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Mac80211 config parameter BEACON_ENABLE is handled. When VAP
capabilities frame with AP mode is configured to firmware, beacon
events start coming to host at each PreTBTT. At this time, beacon
is taken from mac80211, descriptor is prepared and send to firmware.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

remove_interface callback of mac80211 is handled for AP mode.
Same is notified to firmware through vap_capabilities frame
with VAP status VAP_DELETE.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

AP mode is handled in add_interface callback of mac80211.
Also for AP mode, sending rx filter frame to disallow beacons
to host is added. Station structures are initialized to NULL.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

AP mode support is advertised to cfg80211. Necessary wiphy
parameters are initialized.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Provision is added for configuring RTS threshold by sending
vap dynamic update frame to firmware.
Signed-off-by: NKarun Eagalapati <karun256@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

BUFFER_AVAILABLE interrupt is sent by firmware to indicate
change in buffer status. We should check buffer status while
handling this interrupt. Currently buffer status is checked
only while dequeueing packets. This patch fixes a data
traffic stuck problem observed occasionally.
Signed-off-by: NKarun Eagalapati <karun256@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

We get buffer full event from firmware whenever Tx queue is full
Host should stop writing packets after this and resume after
buffer free event.
Buffer status checking is optimized for once in 4 times if
BUFF_FULL condition is not set, otherwise once for every
packet.
Signed-off-by: NKarun Eagalapati <karun256@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

rsi_sdio_check_buffer_status would be the appropriate name
for this function as we are checking hardware buffers
availability status.
Signed-off-by: NKarun Eagalapati <karun256@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch adds support for U-APSD power save. Configuration
frame is downloaded to firmware with default settings and
support is advertised to mac80211
Signed-off-by: NKarun Eagalapati <karun256@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch adds support for legacy power save. Necessary
configuration frames are downloaded to firmware when power save
is enabled/disabled
Signed-off-by: NKarun Eagalapati <karun256@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

TX command frame set_antenna is modified to use common
descriptor structure. Also it's subframe type is set.
Signed-off-by: NPavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch implements rfkill_poll handler. Also, necessary changes
are done in interface up and down handler to support rfkill
functionality.
Signed-off-by: NPavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch fixes the uninitialized descriptor pointer
issue in function rsi_send_internal_mgmt_frame().
Descriptor should point to start of the skb data.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Fixes: 9a629faf ("rsi: immediate wakeup bit and priority for TX command packets")
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

u32 pointer is changed to u16 and filled the value. Problem is
solved by using local temporary variable. Below static checker
warning was reported.

drivers/net/wireless/rsi/rsi_91x_usb.c:400 rsi_usb_master_reg_read()
        warn: passing casted pointer 'value' to 'rsi_usb_reg_read()'
32 vs 16.

Fixes: b97e9b94 ("rsi: Add new host interface operations")
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

These checks are required. Otherwise we may end up getting
memory corruption if invalid length is passed.

Fixes: b97e9b94 ("rsi: Add new host interface operations")
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

4 bytes is fixed size for reading or writing USB register. We
will use a macro instead of hardcoding this.

Fixes: b97e9b94 ("rsi: Add new host interface operations")
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Below regulatory changes are included this patch
* Country code is saved as it will be used in bgscan.
* Region codes are mapped according to RSI region codes.
* Radar flag settings are moved under the check if 5GHZ band
  is enabled.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

When interface is down it is better to stop all RX packets to
host. 0xffff will block all packets to host.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Device specific descriptor for each TX packet is prepared on top of
skb data address. This descriptor should be pulled out before
indicating the TX status to mac80211.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

TX command frame block/unblock data is modified to
use common descriptor structure.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Data queues should be unblocked after station add notify frame
is sent and should be blocked after station delete notify is sent.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

When Short Gaurd Interval is enabled bit 9 is set in rate. Otherwise
it should not be set. Added missing 'else' case in this patch.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Broadcast bit to be set for broadcast and multicast packets.
For remove_key, tx and rx mic need not be filled.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

TX command frame set_key is modified to use common descriptor
structure.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

VAP capablities frame configured to device is modified to use
common descriptor structure.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

TX command frame set_channel is modified to use common
descriptor structure. Also DFS channel indication to firmware
is added in the descriptor for dfs channels configuration.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Baseband RF programming frame configured to device is modified
to use common descriptor structure.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

AMPDU aggregation parameters frame configured to device is
modified to use common descriptor structure.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

TX command frame peer notify is updated to use common descriptor
structure. MPDU density value added to the frame.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

The function rsi_mgmt_pkt_to_core() is for passing the 802.11
management frames to mac80211. So, it is unnecessary to check
again for the frame type 802.11 management in this function.
It can be checked before passing to this function.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Radio capabilities frame is updated to use common descriptor
structure. Also, few changes to this frame is done like hardware
queues are increase to 12 from 8, default channel number is included.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

For all TX command packets immediate wakeup bit needs to be
set in descriptor. This will make sure device will wakeup if it
is in any sleep state. Priority of the packet is also set.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

All internal management packets (command packets) use some common
fields and some packet specific fields for packet descriptors.
This patch adds some common structures which are needed for all
command packets.
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

We have now added separate lock for Rx. This lock is used to protect
tx path only
Signed-off-by: NKarun Eagalapati <karun256@gmail.com>
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NPrameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>