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path: root/tools/power/cpupower/lib/cpufreq.c
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Diffstat (limited to 'tools/power/cpupower/lib/cpufreq.c')
-rw-r--r--tools/power/cpupower/lib/cpufreq.c190
1 files changed, 190 insertions, 0 deletions
diff --git a/tools/power/cpupower/lib/cpufreq.c b/tools/power/cpupower/lib/cpufreq.c
new file mode 100644
index 000000000000..ae7d8c57b447
--- /dev/null
+++ b/tools/power/cpupower/lib/cpufreq.c
@@ -0,0 +1,190 @@
+/*
+ * (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 "sysfs.h"
+
+int cpufreq_cpu_exists(unsigned int cpu)
+{
+ return sysfs_cpu_exists(cpu);
+}
+
+unsigned long cpufreq_get_freq_kernel(unsigned int cpu)
+{
+ return sysfs_get_freq_kernel(cpu);
+}
+
+unsigned long cpufreq_get_freq_hardware(unsigned int cpu)
+{
+ return sysfs_get_freq_hardware(cpu);
+}
+
+unsigned long cpufreq_get_transition_latency(unsigned int cpu)
+{
+ return sysfs_get_freq_transition_latency(cpu);
+}
+
+int cpufreq_get_hardware_limits(unsigned int cpu,
+ unsigned long *min,
+ unsigned long *max)
+{
+ if ((!min) || (!max))
+ return -EINVAL;
+ return sysfs_get_freq_hardware_limits(cpu, min, max);
+}
+
+char * cpufreq_get_driver(unsigned int cpu) {
+ return sysfs_get_freq_driver(cpu);
+}
+
+void cpufreq_put_driver(char * ptr) {
+ if (!ptr)
+ return;
+ free(ptr);
+}
+
+struct cpufreq_policy * cpufreq_get_policy(unsigned int cpu) {
+ return sysfs_get_freq_policy(cpu);
+}
+
+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) {
+ return sysfs_get_freq_available_governors(cpu);
+}
+
+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) {
+ return sysfs_get_available_frequencies(cpu);
+}
+
+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) {
+ return sysfs_get_freq_affected_cpus(cpu);
+}
+
+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) {
+ return sysfs_get_freq_related_cpus(cpu);
+}
+
+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) {
+ if (!policy || !(policy->governor))
+ return -EINVAL;
+
+ return sysfs_set_freq_policy(cpu, policy);
+}
+
+
+int cpufreq_modify_policy_min(unsigned int cpu, unsigned long min_freq) {
+ return sysfs_modify_freq_policy_min(cpu, min_freq);
+}
+
+
+int cpufreq_modify_policy_max(unsigned int cpu, unsigned long max_freq) {
+ return sysfs_modify_freq_policy_max(cpu, max_freq);
+}
+
+
+int cpufreq_modify_policy_governor(unsigned int cpu, char *governor) {
+ if ((!governor) || (strlen(governor) > 19))
+ return -EINVAL;
+
+ return sysfs_modify_freq_policy_governor(cpu, governor);
+}
+
+int cpufreq_set_frequency(unsigned int cpu, unsigned long target_frequency) {
+ return sysfs_set_frequency(cpu, target_frequency);
+}
+
+struct cpufreq_stats * cpufreq_get_stats(unsigned int cpu, unsigned long long *total_time) {
+ struct cpufreq_stats *ret;
+
+ ret = sysfs_get_freq_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_freq_transitions(cpu);
+
+ return (ret);
+}