Implement hw_scan support for enabling multi-channel cuncurrency.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NRajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

While leaving from or entering to active channel context, send out
nullfunc frame to inform to the AP about the presence of station.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NRajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The channel context worker is used to switch to next requested
channel context.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NRajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Add support to maintain per-channel ACs list.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NRajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NRajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The channel context structure is defined to enable
multi-channel concurrency support.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NRajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>