Date: Sat, 18 Mar 2017 19:28:24 -0700 From: Adrian Chadd <adrian@freebsd.org> To: Farhan Khan <khanzf@gmail.com> Cc: Andriy Voskoboinyk <s3erios@gmail.com>, "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org> Subject: Re: Trouble writing rtl8188ee driver Message-ID: <CAJ-VmonPK1SRYq0ByjBkJ3sEjZmhixTxWhWnwV0Ro%2BERa0JKLQ@mail.gmail.com> In-Reply-To: <CAFd4kYDKd2kUu0oTWV0%2B5tuhNe2AAsFZOO092S8wpeVb%2B9QRpA@mail.gmail.com> References: <CAFd4kYBbxJZAYgxPHTQhcVd2Ygsm36oA8gT_ASpXmSVZF-HpyA@mail.gmail.com> <op.yxbktlthiew4ia@thinkpad-x220> <CAFd4kYDKd2kUu0oTWV0%2B5tuhNe2AAsFZOO092S8wpeVb%2B9QRpA@mail.gmail.com>
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yay great progress! -adrian On 18 March 2017 at 19:26, Farhan Khan <khanzf@gmail.com> wrote: > 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@gmail.com> > wrote: > >> Sat, 18 Mar 2017 22:21:51 +0200 =D0=B1=D1=83=D0=BB=D0=BE =D0=BD=D0=B0=D0= =BF=D0=B8=D1=81=D0=B0=D0=BD=D0=BE Farhan Khan < >> khanzf@gmail.com>: >> >> Hi, >> >> there is no need to create an additional rtl8188ee[e] directories / file= s; >> AFAIK, rtl8188ee is just a PCI-E version of rtl8188e chipset (and rtl818= 8eu >> 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 m= e >>> 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. Th= e >>> 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, w= as >>> 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 a= dd >>> 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 t= han >>> a month. >>> >>> Thank you! >>> >>> -- >>> Farhan Khan >>> PGP Fingerprint: 782F 342B 5B08 0D2F F4E8 82C3 FFA1 CAE1 6536 51CA >>> _______________________________________________ >>> freebsd-wireless@freebsd.org mailing list >>> https://lists.freebsd.org/mailman/listinfo/freebsd-wireless >>> To unsubscribe, send any mail to "freebsd-wireless-unsubscribe@ >>> freebsd.org" >>> >> > _______________________________________________ > freebsd-wireless@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-wireless > To unsubscribe, send any mail to "freebsd-wireless-unsubscribe@freebsd.or= g"
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