/*

      hwmon-vid.h - VID/VRM/VRD voltage conversions
  
      Originally part of lm_sensors

      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.
  */

  #ifndef _LINUX_HWMON_VID_H
  #define _LINUX_HWMON_VID_H

  int vid_from_reg(int val, u8 vrm);
  u8 vid_which_vrm(void);

  /* 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. */

  static inline int vid_to_reg(int val, u8 vrm)

  {
  	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:
  		return -1;
  	}
  }

  
  #endif /* _LINUX_HWMON_VID_H */