Trouble writing rtl8188ee driver

[Farhan Khan]

That was it!!! Thank you! Wow! I have been on this for weeks now! My
debugging output displays as follows:

id:                     8129
hpon:                   Render How?
clk:                    0
rf_board_option:        0
rf_feature_option:      0
rf_bt_setting:          10
Version:                0
customer_id:            0
rf_antenna_option:      2
MAC Address:            40:49:f:a9:b7:61
vid:                    10ec
did:                    8179
svid:                   103c
smid:                   197d
Board type: 0
Regulatory: 0

However, your email might change my direction to just extend the rtl8188e
code and add the PCI bits.
This is my first time hacking the kernel and I hope to contribute back.

Thanks again!

--
Farhan Khan
PGP Fingerprint: 782F 342B 5B08 0D2F F4E8 82C3 FFA1 CAE1 6536 51CA

On Sat, Mar 18, 2017 at 7:28 PM, Andriy Voskoboinyk <s3erios at gmail.com>
wrote:

> Sat, 18 Mar 2017 22:21:51 +0200 було написано Farhan Khan <
> khanzf at gmail.com>:
>
> Hi,
>
> there is no need to create an additional rtl8188ee[e] directories / files;
> AFAIK, rtl8188ee is just a PCI-E version of rtl8188e chipset (and rtl8188eu
> is an USB-based version); you should just separate pci / usb code inside
> rtl8188e directory (most of it will be the same; you can use rtl8192c as an
> example (but you should use rtl8188eu as an template - they are somewhat
> different))
>
> About this particular bug: you don't have RTWN_FLAG_EXT_HDR set
> (non-rtl8192c
> chipsets may contain an 'extended header' in encoded ROM image; it is
> generally used to extend maximum ROM image size over 128 bytes)
>
> Hi team,
>>
>> I'm toothe from the IRC channel. I hope you all are doing well :) Let me
>> tell you where I am in writing my code. In short, I am stuck and need
>> asisstance.
>>
>> I created a copy of the rtl8192c code, and placed it here:
>> https://github.com/khanzf/freebsd/tree/master/sys/dev/rtwn/rtl8188ee
>>
>> I zero'd out all functions and went one-by-one to replace them as
>> necessary. The section of code that I am stuck at is reading the
>> EEPROM/ROM
>> from the chip. I backed into the ROM image for the first 222 bytes by
>> using
>> the Linux source as documentation and created this: (
>> https://github.com/khanzf/freebsd/blob/master/sys/dev/rtwn/
>> rtl8188ee/r88ee_rom_image.h#L56)
>> When
>> I read from the ROM, I basically get 500~ bytes of 0xFF - the first 10 or
>> so are set properly, suggesting that I am reading from the right memory
>> segment. Specifically, the first 2 bytes are 0x8129, which is accurate per
>> the Linux driver. But why is everything else coming up as 0xFF's?
>>
>> I delved into how FreeBSD's rtwn and Linux's rtl8188ee drivers work. The
>> efuse code is very similiar, of course, but I do not understand the
>> reasoning for what is occurring. The main difference I found, so far, was
>> that the Linux driver will read from EFUSE_CTRL + an offset (1, 2 or 3),
>> whereas the FreeBSD driver does not use an offset.
>>
>> This is where I am stuck. I would easily just change the code over to add
>> the offset on the FreeBSD code, but it is in sys/dev/rtwn/if_rtwn_efuse.c,
>> which is used by multiple drivers.
>>
>> I am unsure what is wrong or how to diagnose it. Can you please provide me
>> some guidance? I have been stuck on this same issue for a little more than
>> a month.
>>
>> Thank you!
>>
>> --
>> Farhan Khan
>> PGP Fingerprint: 782F 342B 5B08 0D2F F4E8 82C3 FFA1 CAE1 6536 51CA
>> _______________________________________________
>> freebsd-wireless at freebsd.org mailing list
>> https://lists.freebsd.org/mailman/listinfo/freebsd-wireless
>> To unsubscribe, send any mail to "freebsd-wireless-unsubscribe@
>> freebsd.org"
>>
>