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/*
 * Project: S.Ha.R.K.
 *
 * Coordinators:
 *   Giorgio Buttazzo    <giorgio@sssup.it>
 *   Paolo Gai           <pj@gandalf.sssup.it>
 *
 * Authors     :
 *   Mauro Marinoni      <mauro.marinoni@unipv.it>
 *
 *
 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
 *
 * http://www.sssup.it
 * http://retis.sssup.it
 * http://shark.sssup.it
 */

/* Glue Layer Header Linux CPU Driver*/

#ifndef __SHARK_CPU26_H__
#define __SHARK_CPU26_H__

#define DVS_NONE                0
#define DVS_POWERNOW_K6         1
#define DVS_POWERNOW_K7         2
#define DVS_POWERNOW_K8         3
#define DVS_MEDIAGX_GEODE       4
#define DVS_P4_CLOCK_MOD        5
#define DVS_SS_CENTRINO         6
#define DVS_SS_ICH              7
#define DVS_SS_SMI              8

#define DVS_RELATION_L          0  /* lowest frequency at or above target */
#define DVS_RELATION_H          1  /* highest frequency below or at target */

#define DVS_LATENCY_ETERNAL     (-1)

#define DVS_MAX_NUM_FREQS       50

extern int cpu26_freqs[DVS_MAX_NUM_FREQS];

int CPU26_installed(void);
int CPU26_init(void);
int CPU26_close(void);

void CPU26_showinfo(void);

int CPU26_DVS_init(void);
int CPU26_DVS_close(void);
int CPU26_DVS_status(void);

int CPU26_get_latency(void);
int CPU26_set_frequency(unsigned int target_freq, unsigned int relation);
int CPU26_get_cur_frequency(void);
int CPU26_get_min_frequency(void);
int CPU26_get_max_frequency(void);
int CPU26_get_frequencies(int *buf);
int CPU26_show_frequencies(char *buf);

int CPU26_set_suspend_modulation(unsigned char on_duration, unsigned char off_duration);

#endif