From owner-freebsd-bugs@freebsd.org  Fri Jul 28 17:55:53 2017
Return-Path: <owner-freebsd-bugs@freebsd.org>
Delivered-To: freebsd-bugs@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 50BC4DCB0CB
 for <freebsd-bugs@mailman.ysv.freebsd.org>;
 Fri, 28 Jul 2017 17:55:53 +0000 (UTC)
 (envelope-from bugzilla-noreply@freebsd.org)
Received: from kenobi.freebsd.org (kenobi.freebsd.org
 [IPv6:2001:1900:2254:206a::16:76])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 3E5EA6A1F6
 for <freebsd-bugs@FreeBSD.org>; Fri, 28 Jul 2017 17:55:53 +0000 (UTC)
 (envelope-from bugzilla-noreply@freebsd.org)
Received: from bugs.freebsd.org ([127.0.1.118])
 by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v6SHtqaq059461
 for <freebsd-bugs@FreeBSD.org>; Fri, 28 Jul 2017 17:55:53 GMT
 (envelope-from bugzilla-noreply@freebsd.org)
From: bugzilla-noreply@freebsd.org
To: freebsd-bugs@FreeBSD.org
Subject: [Bug 221071] NCT6779D - implement support for sensor readings
Date: Fri, 28 Jul 2017 17:55:53 +0000
X-Bugzilla-Reason: AssignedTo
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: Base System
X-Bugzilla-Component: kern
X-Bugzilla-Version: 11.1-RELEASE
X-Bugzilla-Keywords: patch
X-Bugzilla-Severity: Affects Only Me
X-Bugzilla-Who: nbe@renzel.net
X-Bugzilla-Status: New
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: ---
X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-221071-8-7fD0UlkTI9@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-221071-8@https.bugs.freebsd.org/bugzilla/>
References: <bug-221071-8@https.bugs.freebsd.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: freebsd-bugs@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: Bug reports <freebsd-bugs.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-bugs>,
 <mailto:freebsd-bugs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-bugs/>
List-Post: <mailto:freebsd-bugs@freebsd.org>
List-Help: <mailto:freebsd-bugs-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
 <mailto:freebsd-bugs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 28 Jul 2017 17:55:53 -0000

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D221071

--- Comment #2 from Nils Beyer <nbe@renzel.net> ---
I don't get it; for instance, CPU temperature - bank 4, register 91h reads
36h =3D 54

so, the logic in NetBSD code is as following:
-----------------------------------------------------------------------
        data =3D (*sc->lm_readreg)(sc, sc->lm_sensors[n].reg) << 1;
        data +=3D (*sc->lm_readreg)(sc, sc->lm_sensors[n].reg + 1) >> 7;
        if (data > 0xfffffff || (data > 0x0fa && data < 0x1a6)) {
                sc->sensors[n].state =3D ENVSYS_SINVALID;
        } else {
                if (data & 0x100)
                        data -=3D 0x200;
                sc->sensors[n].state =3D ENVSYS_SVALID;
                sc->sensors[n].value_cur =3D data * 500000 + 273150000;
        }
-----------------------------------------------------------------------

1) shift original value one left -> 6Ch =3D 108
2) shift value of next register seven right (0) and add that to original va=
lue
-> 6Ch stays
2) bit-and that with 100h, if true then subtract 200h -> it's false, so 6Ch
stays
3) multiply that with 500000 -> 0337f980h =3D 54000000
4) add 273150000 -> 137FE9B0h =3D 327150000

So, I have exceeded the safe temperature of my CPU and of the solar system's
sun...

--=20
You are receiving this mail because:
You are the assignee for the bug.=