Re: [BUG] staging: rtl8192e: W_DISABLE# does not work after stop/start

[Philipp Hortmann]

On 4/13/23 11:34, Dan Carpenter wrote:
> On Fri, Apr 07, 2023 at 11:02:05PM +0200, Philipp Hortmann wrote:
> > When loading the driver for rtl8192e, the W_DISABLE# switch is working as
> > intended. But when the WLAN is turned off in software and then turned on
> > again the W_DISABLE# does not work anymore.
> >
> > Reason for this is that in the function _rtl92e_dm_check_rf_ctrl_gpio()
> > checking this every two seconds is an conditional return.
> >
> > 	if (priv->bfirst_after_down) {
> > 		priv->bfirst_after_down = true; // PH: useless line
> > 		return;
> > 	}
> >
> > 	tmp1byte = rtl92e_readb(dev, GPI); // PH: GPI for W_DISABLE#
> >
> > bfirst_after_down is set true when switching the WLAN off in software. But
> > it is not set to false again when WLAN is turned on again.
>
> Is there a question here?  You're like the expert on this driver and you
> seem to have figured out the solution...  I'm confused.
For me a bug report is always a please to the community to fix. But when 
nobody likes to start I have to do it by myself...
> regards,
> dan carpenter

As expected I am not even on the half way. I can set the 
bfirst_after_down back to false. Then WLAN recovers but not the 
connection. The os is asking me to enter the WLAN password. I can do so 
but that does not fix the issue. I need to switch WLAN off and on in 
software. Then the connection comes back again.

I need to find a way to reset the internal states of the driver accordingly.

Thanks for your support.

No response required - will work on the fix on the weekend....

regards,

Philipp