wifi: rtw89: 8852b: add chip_ops related to RF calibration
Since RF calibrations are added, add chip_ops to call them. These chip_ops
include initial, full calibration, configuration when switching band and
scanning, and track work in period of 2 seconds.
DPK is short for digital pre-distortion calibration. It can adjusts digital
waveform according to PA linear characteristics dynamically to enhance
TX EVM.
Do this calibration when we are going to run on AP channel. To prevent
power offset out of boundary, it monitors thermal and set proper boundary
to register.
TSSI is transmitter signal strength indication, which is a close-loop
hardware circuit to feedback actual transmitting power as a reference for
next transmission.
When we setup channel to connect an AP, it does full calibration. When
switching bands or channels, it needs to reset hardware status to prevent
use wrong feedback of previous transmission.
To do TX power compensation reflecting current temperature, it loads tables
of compensation values into registers according to channel and band group.
IQ signal calibration is a very important calibration to yield good RF
performance. We do this calibration only if we are going to run on AP
channel. During scanning phase, without this calibration RF performance
is still acceptable because it transmits with low data rate at this phase.
RX DCK is receiver DC calibration. With this calibration, we have proper
DC offset to reflect correct received signal strength indicator. Do this
calibration when bringing up interface and going to run on AP channel.
RCK is synchronize RC calibration. Driver triggers this calibration and
sets the result to register. This calibration is needed once when interface
is going to up.
