Subversion Repositories test_project

/*

    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 */