C2H on rtwn not handled

[Andriy Voskoboinyk]

Mon, 30 Oct 2017 06:28:15 +0200 було написано Farhan Khan  
<khanzf at gmail.com>:

> Hi Andriy,
>
> Just to be clear, this would mean that in my sc_post_init, I should not  
> utilize callout_reset, which utilizes r92c_handle_c2h_report, correct?

Yeah, rs_c2h_* fields are not used on RTL8188E*

> This appears to be how rtl
>
> If so, how do I know when a C2H event arrives? (I am not too familiar  
> with C2H or how it works yet).

Just check if IMR_TXCCK_88E / IMR_C2HCMD_88E bits are set in
interrupt status (R88E_HIMR register, see r92ce_classify_intr()
as an example).

>
> As always, thank you very much.
>
> On 10/29/2017 07:46 PM, Andriy Voskoboinyk wrote:
>> Sun, 29 Oct 2017 08:34:21 +0200 було написано Farhan Khan  
>> <khanzf at gmail.com>:
>>  Hi,
>>  You should not use polling for RTL8188EE - it was mainly used for
>> RTL8192C* (since there is no documented way to get events from it)
>> and can be enabled on RTL881(1,2)A (but just is not needed here).
>>  Look into rtwn/rtl8188e/r88e_rx.c - I think you can call
>> r88e_ratectl_tx_complete() and/or r88e_handle_c2h_report() indirectly
>> from rtwn_pci_intr() when C2H event arrives.
>>
>>> Hi all,
>>>
>>> I am trying to extend the rtwn driver to add RTL8188EE support. I am  
>>> still getting this error whenever I enable the WiFi card:
>>>
>>> rtwn0: r92c_handle_c2h_task: C2H report 0 (len 0) was not handled
>>>
>>>  From my reading of the code, it appears that the driver is trying to  
>>> read a status-value from the card, but it fails to return a valid  
>>> result. Is there something that I need to do to initialize this?  If  
>>> so, what exactly? This appears to be a firmware-specific routine and I  
>>> have enabled the firmware.
>>>
>>> I have been on this for an extended period of time and am stuck :(
>>>
>>> Thank you!
>>>
>>> -- Farhan Khan
>>> PGP Fingerprint: B28D 2726 E2BC A97E 3854 5ABE 9A9F 00BC D525 16EE
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