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/*
* (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de>
*
* Licensed under the terms of the GNU GPL License version 2.
*/
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "cpufreq.h"
#include "interfaces.h"
int cpufreq_cpu_exists(unsigned int cpu)
{
int ret = sysfs_cpu_exists(cpu);
if (ret == -ENOSYS)
ret = proc_cpu_exists(cpu);
return (ret);
}
unsigned long cpufreq_get_freq_kernel(unsigned int cpu)
{
unsigned long ret = sysfs_get_freq_kernel(cpu);
if (!ret)
ret = proc_get_freq_kernel(cpu);
return (ret);
}
unsigned long cpufreq_get_freq_hardware(unsigned int cpu)
{
unsigned long ret = sysfs_get_freq_hardware(cpu);
if (!ret)
ret = proc_get_freq_hardware(cpu);
return (ret);
}
unsigned long cpufreq_get_transition_latency(unsigned int cpu)
{
unsigned long ret = sysfs_get_transition_latency(cpu);
if (!ret)
ret = proc_get_transition_latency(cpu);
return (ret);
}
int cpufreq_get_hardware_limits(unsigned int cpu,
unsigned long *min,
unsigned long *max)
{
int ret;
if ((!min) || (!max))
return -EINVAL;
ret = sysfs_get_hardware_limits(cpu, min, max);
if (ret)
ret = proc_get_hardware_limits(cpu, min, max);
return (ret);
}
char * cpufreq_get_driver(unsigned int cpu) {
char * ret;
ret = sysfs_get_driver(cpu);
if (!ret) {
ret = proc_get_driver(cpu);
}
return (ret);
}
void cpufreq_put_driver(char * ptr) {
if (!ptr)
return;
free(ptr);
}
struct cpufreq_policy * cpufreq_get_policy(unsigned int cpu) {
struct cpufreq_policy * ret;
ret = sysfs_get_policy(cpu);
if (!ret)
ret = proc_get_policy(cpu);
return (ret);
}
void cpufreq_put_policy(struct cpufreq_policy *policy) {
if ((!policy) || (!policy->governor))
return;
free(policy->governor);
policy->governor = NULL;
free(policy);
}
struct cpufreq_available_governors * cpufreq_get_available_governors(unsigned int cpu) {
struct cpufreq_available_governors *ret;
ret = sysfs_get_available_governors(cpu);
if (!ret)
ret = proc_get_available_governors(cpu);
return (ret);
}
void cpufreq_put_available_governors(struct cpufreq_available_governors *any) {
struct cpufreq_available_governors *tmp, *next;
if (!any)
return;
tmp = any->first;
while (tmp) {
next = tmp->next;
if (tmp->governor)
free(tmp->governor);
free(tmp);
tmp = next;
}
}
struct cpufreq_available_frequencies * cpufreq_get_available_frequencies(unsigned int cpu) {
struct cpufreq_available_frequencies * ret;
ret = sysfs_get_available_frequencies(cpu);
if (!ret)
ret = proc_get_available_frequencies(cpu);
return (ret);
}
void cpufreq_put_available_frequencies(struct cpufreq_available_frequencies *any) {
struct cpufreq_available_frequencies *tmp, *next;
if (!any)
return;
tmp = any->first;
while (tmp) {
next = tmp->next;
free(tmp);
tmp = next;
}
}
struct cpufreq_affected_cpus * cpufreq_get_affected_cpus(unsigned int cpu) {
struct cpufreq_affected_cpus * ret;
ret = sysfs_get_affected_cpus(cpu);
if (!ret)
ret = proc_get_affected_cpus(cpu);
return (ret);
}
void cpufreq_put_affected_cpus(struct cpufreq_affected_cpus *any) {
struct cpufreq_affected_cpus *tmp, *next;
if (!any)
return;
tmp = any->first;
while (tmp) {
next = tmp->next;
free(tmp);
tmp = next;
}
}
struct cpufreq_affected_cpus * cpufreq_get_related_cpus(unsigned int cpu) {
struct cpufreq_affected_cpus * ret;
ret = sysfs_get_related_cpus(cpu);
if (!ret)
ret = proc_get_related_cpus(cpu);
return (ret);
}
void cpufreq_put_related_cpus(struct cpufreq_affected_cpus *any) {
cpufreq_put_affected_cpus(any);
}
int cpufreq_set_policy(unsigned int cpu, struct cpufreq_policy *policy) {
int ret;
if (!policy || !(policy->governor))
return -EINVAL;
ret = sysfs_set_policy(cpu, policy);
if (ret)
ret = proc_set_policy(cpu, policy);
return (ret);
}
int cpufreq_modify_policy_min(unsigned int cpu, unsigned long min_freq) {
int ret;
ret = sysfs_modify_policy_min(cpu, min_freq);
if (ret)
ret = proc_modify_policy_min(cpu, min_freq);
return (ret);
}
int cpufreq_modify_policy_max(unsigned int cpu, unsigned long max_freq) {
int ret;
ret = sysfs_modify_policy_max(cpu, max_freq);
if (ret)
ret = proc_modify_policy_max(cpu, max_freq);
return (ret);
}
int cpufreq_modify_policy_governor(unsigned int cpu, char *governor) {
int ret;
if ((!governor) || (strlen(governor) > 19))
return -EINVAL;
ret = sysfs_modify_policy_governor(cpu, governor);
if (ret)
ret = proc_modify_policy_governor(cpu, governor);
return (ret);
}
int cpufreq_set_frequency(unsigned int cpu, unsigned long target_frequency) {
int ret;
ret = sysfs_set_frequency(cpu, target_frequency);
if (ret)
ret = proc_set_frequency(cpu, target_frequency);
return (ret);
}
struct cpufreq_stats * cpufreq_get_stats(unsigned int cpu, unsigned long long *total_time) {
struct cpufreq_stats *ret;
ret = sysfs_get_stats(cpu, total_time);
return (ret);
}
void cpufreq_put_stats(struct cpufreq_stats *any) {
struct cpufreq_stats *tmp, *next;
if (!any)
return;
tmp = any->first;
while (tmp) {
next = tmp->next;
free(tmp);
tmp = next;
}
}
unsigned long cpufreq_get_transitions(unsigned int cpu) {
unsigned long ret = sysfs_get_transitions(cpu);
return (ret);
}
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