On 7/1/19 4:27 AM, Daniel Drake wrote: > Hi Chris, > > On Thu, Jun 27, 2019 at 5:53 PM Chris Chiu <chiu@xxxxxxxxxxxx> wrote: >> The WiFi tx power of RTL8723BU is extremely low after booting. So >> the WiFi scan gives very limited AP list and it always fails to >> connect to the selected AP. This module only supports 1x1 antenna >> and the antenna is switched to bluetooth due to some incorrect >> register settings. >> >> This commit hand over the antenna control to PTA, the wifi signal >> will be back to normal and the bluetooth scan can also work at the >> same time. However, the btcoexist still needs to be handled under >> different circumstances. If there's a BT connection established, >> the wifi still fails to connect until disconneting the BT. >> >> Signed-off-by: Chris Chiu <chiu@xxxxxxxxxxxx> > > Really nice work finding this! > > I know that after this change, you plan to bring over the btcoexist > code from the vendor driver (or at least the minimum required code) > for a more complete fix, but I'm curious how you found these magic > register values and how they compare to the values used by the vendor > driver with btcoexist? We definitely don't want to bring over the vendor code, since it's a pile of spaghetti, but we probably need to get something sorted. This went down the drain when the bluetooth driver was added without taking it into account - long after this driver was merged. Cheers, Jes
