dvfs_context.h

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/*
 * libdvfs - A light library to set CPU governor and frequency
 * Copyright (C) 2013-2014 Universite de Versailles
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include <stdbool.h>

#include "dvfs_unit.h"
#include "dvfs_core.h"


typedef struct {
   unsigned int nb_units;  
   dvfs_unit **units;      
} dvfs_ctx;

int dvfs_start(dvfs_ctx** ppCtx, bool seq);

int dvfs_stop(dvfs_ctx *ctx);

#define DVFS_TB_UNAVAILABLE 0   
#define DVFS_TB_AVAILABLE 1     
int dvfs_has_TB();

int dvfs_set_gov(const dvfs_ctx *ctx, const char *gov);

int dvfs_set_freq(dvfs_ctx *ctx, unsigned int freq);

int dvfs_get_core(const dvfs_ctx *ctx, const dvfs_core **ppCore, unsigned int core_id);

int dvfs_get_unit_by_id(const dvfs_ctx* ctx, const dvfs_unit** ppUnit, unsigned int index);

int dvfs_get_unit_by_core(const dvfs_ctx *ctx, const dvfs_core *core, const dvfs_unit **ppUnit);

int dvfs_get_nb_units(const dvfs_ctx* ctx, unsigned int *pNb);