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include/linux/hwmon-vid.h
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/* |
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hwmon-vid.h - VID/VRM/VRD voltage conversions Originally part of lm_sensors |
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Copyright (c) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com> With assistance from Trent Piepho <xyzzy@speakeasy.org> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
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#ifndef _LINUX_HWMON_VID_H #define _LINUX_HWMON_VID_H |
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int vid_from_reg(int val, u8 vrm); u8 vid_which_vrm(void); |
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/* vrm is the VRM/VRD document version multiplied by 10. val is in mV to avoid floating point in the kernel. Returned value is the 4-, 5- or 6-bit VID code. Note that only VRM 9.x is supported for now. */ |
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static inline int vid_to_reg(int val, u8 vrm) |
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{ switch (vrm) { case 91: /* VRM 9.1 */ case 90: /* VRM 9.0 */ return ((val >= 1100) && (val <= 1850) ? ((18499 - val * 10) / 25 + 5) / 10 : -1); default: |
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return -EINVAL; |
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} } |
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#endif /* _LINUX_HWMON_VID_H */ |