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add support for VRM 10.0

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git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2600 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Mark D. Studebaker
2004-06-19 17:07:40 +00:00
parent f52172bfbc
commit 09611e791d
1 changed files with 20 additions and 5 deletions
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25
kernel/include/sensors_vid.h
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@@ -1,7 +1,7 @@
/* /*
sensors_vid.h - Part of lm_sensors, Linux kernel modules for hardware sensors_vid.h - Part of lm_sensors, Linux kernel modules for hardware
monitoring monitoring
Copyright (c) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com> Copyright (c) 2002-2004 Mark D. Studebaker <mdsxyz123@yahoo.com>
With assistance from Trent Piepho <xyzzy@speakeasy.org> With assistance from Trent Piepho <xyzzy@speakeasy.org>
This program is free software; you can redistribute it and/or modify This program is free software; you can redistribute it and/or modify
@@ -21,11 +21,12 @@
/* /*
This file contains common code for decoding VID pins. This file contains common code for decoding VID pins.
This file is #included in various chip drivers in this directory. This file is #included in various sensor chip drivers.
As the user is unlikely to load more than one driver which As the user is unlikely to load more than one driver which
includes this code we don't worry about the wasted space. includes this code we don't worry about the wasted space.
Reference: VRM x.y DC-DC Converter Design Guidelines, References: VRM x.y DC-DC Converter Design Guidelines,
available at http://developer.intel.com VRD 10.0 Design Guide,
available at http://developer.intel.com
*/ */
/* /*
@@ -44,7 +45,7 @@
*/ */
/* /*
Legal val values 00 - 1F. Legal val values 00 - 1F except for VRD 10.0, 0x00-0x3f.
vrm is the Intel VRM document version. vrm is the Intel VRM document version.
Note: vrm version is scaled by 10 and the return value is scaled by 1000 Note: vrm version is scaled by 10 and the return value is scaled by 1000
to avoid floating point in the kernel. to avoid floating point in the kernel.
@@ -54,8 +55,22 @@
static inline int vid_from_reg(int val, int vrm) static inline int vid_from_reg(int val, int vrm)
{ {
int vid;
switch(vrm) { switch(vrm) {
case 100: /* VRD 10.0 */
if((val & 0x1f) == 0x1f)
return 0;
if((val & 0x1f) <= 0x09 || val == 0x0a)
vid = 10875 - (val & 0x1f) * 250;
else
vid = 18625 - (val & 0x1f) * 250;
if(val & 0x20)
vid += 125;
vid /= 10; /* only return 3 dec. places for now */
return vid;
case 24: /* Opteron processor */ case 24: /* Opteron processor */
return(val == 0x1f ? 0 : 1550 - val * 25); return(val == 0x1f ? 0 : 1550 - val * 25);