/*  This file is part of cputemp2maxfreq.

    Copyright (C) 2023-2024 pa4wdh

    cputemp2maxfreq 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.

    cputemp2maxfreq 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 cputemp2maxfreq; see the file COPYING.  If not, see
    <http://www.gnu.org/licenses>.
*/
#include <fcntl.h>
#include <sys/syscall.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <dirent.h>
#include <sys/types.h>
#include "debug.h"
#include "sysfs.h"
#include "cputemp2maxfreq.h"

extern struct s_cpudata cpudata;

// Set a cpufreq parameter to a value
int cpufreq_set_str(char *parameter,char *value,long int checkdelay)
{
 int cpu;
 char sysfs_file[128];
 int done=0;

 DEBUG1_CPUFREQ("Set %s to %s\n",parameter,value)

 if (cpudata.cpulist==NULL)
 {
  DEBUG1_CPUFREQ("No CPU list\n");
  return -1;
 }

 for(cpu=0;cpu<cpudata.cpulist_len;cpu++)
 {
  DEBUG2_CPUFREQ("Set CPU %s\n",cpudata.cpulist[cpu]);
  snprintf(sysfs_file,128,"/sys/devices/system/cpu/%s/cpufreq/%s",cpudata.cpulist[cpu],parameter);
  if (sysfs_write_str(sysfs_file,value,checkdelay)!=0)
  {
   DEBUG1_CPUFREQ("Failed to set %s\n",cpudata.cpulist[cpu]);
   return -1;
  }
  done++;
 }

 return done;
}


// This is just a wrapper around cpufreq_set_str with long int to string
// conversion
int cpufreq_set_long_int(char *parameter,long int value,long int checkdelay)
{
 char buf[255];

 snprintf(buf,255,"%ld",value);
 return cpufreq_set_str(parameter,buf,checkdelay);
}