From owner-freebsd-wireless@freebsd.org Sun Mar 19 02:27:19 2017 Return-Path: Delivered-To: freebsd-wireless@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5A93FD08C47 for ; Sun, 19 Mar 2017 02:27:19 +0000 (UTC) (envelope-from khanzf@gmail.com) Received: from mail-pf0-x229.google.com (mail-pf0-x229.google.com [IPv6:2607:f8b0:400e:c00::229]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 2C41C12BD for ; Sun, 19 Mar 2017 02:27:19 +0000 (UTC) (envelope-from khanzf@gmail.com) Received: by mail-pf0-x229.google.com with SMTP id 20so4521336pfk.2 for ; Sat, 18 Mar 2017 19:27:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=Nqi26rgvKglKye47QTvbZMvs1FdcAE/naMHvQNv4Od0=; b=Mbtah9MX0MNsTGFzzMWznOp8KvGnUhTqwSWQBe6UB3yjt28qOws/1/Dogpan6v9bLn AjY6w/AGxvYdOfuAn72SwuzlapEmqBVLEbNFOk9HzXqbSQXMwkH53dnIaPo0gWbvXFyU 145Hl0B7GN6b2EeAkVHicVd2Txo0a+gPkFZ+Gd3dNuxNkDZjH5GfaAsPCdpTzqXd+n0w xuSLdaecarlO16CdD7GTbKDXdI6YjVux6Z7Q/DscWgSdKSZw1f35gmjG7obk+zx3mT82 85USUcpI5depKrLIR0m6ExFgy4E8tXJ8yhoNE5jdnDohFrW38BSxFFHyp8x01ETCtnp7 m1FA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=Nqi26rgvKglKye47QTvbZMvs1FdcAE/naMHvQNv4Od0=; b=p+kRVu9CLplUkI6wtyOa5RCjPdTjse4nkMmPpnIoBXaahwRV6sS0XjqYWSZe52M3fp 709c2wkgYcDClqiUghn5LC538toGn7D653GN6ilxPjpKY08cnEuHuR/iX2qjmQ/6NIIt fUy9+PsWiwkaW7pfngV/xCZDJnzyCL+OAti8Mt9/MZIwAU6g84YeS8jHeNAcWaSvHGay cToGrpfESHtgHx4SQNuru/xr6wA4qrRRCt1sRuyoJgJUJSC0DFOxD6XRVnBcqMb5NBZt 5KwXSa/Y4HwPc0GzNiSJouKRx1eQAk4Q1pCxoabEScMj33wFXPSkG1qSN/2hJmKOLGQG l9Yg== X-Gm-Message-State: AFeK/H11WJj7FRcEvtKvGAomCL8XAbenn11BaUrapqRsNr3oF5rEDusyr9hgPT5IaYJbhxSgcNCp31xUMzC70A== X-Received: by 10.98.211.81 with SMTP id q78mr25013795pfg.97.1489890438637; Sat, 18 Mar 2017 19:27:18 -0700 (PDT) MIME-Version: 1.0 Received: by 10.100.179.37 with HTTP; Sat, 18 Mar 2017 19:26:58 -0700 (PDT) In-Reply-To: References: From: Farhan Khan Date: Sat, 18 Mar 2017 22:26:58 -0400 Message-ID: Subject: Re: Trouble writing rtl8188ee driver To: Andriy Voskoboinyk Cc: "freebsd-wireless@freebsd.org" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 19 Mar 2017 02:27:19 -0000 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 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 / files= ; > AFAIK, rtl8188ee is just a PCI-E version of rtl8188e chipset (and rtl8188= eu > 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 o= r >> so are set properly, suggesting that I am reading from the right memory >> segment. Specifically, the first 2 bytes are 0x8129, which is accurate p= er >> 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, wa= s >> 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 ad= d >> 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 th= an >> 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" >> >