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/*
* MATE CPUFreq Applet
* Copyright (C) 2004 Carlos Garcia Campos <carlosgc@gnome.org>
*
* This library 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 2 of the License, or (at your option) any later version.
*
* This library 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 library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Authors : Carlos Garc�a Campos <carlosgc@gnome.org>
*/
#include <glib.h>
#include <glib/gi18n.h>
#include <stdlib.h>
#include <linux/version.h>
#include <cpufreq.h>
#include "cpufreq-monitor-libcpufreq.h"
#include "cpufreq-utils.h"
static void cpufreq_monitor_libcpufreq_class_init (CPUFreqMonitorLibcpufreqClass *klass);
static gboolean cpufreq_monitor_libcpufreq_run (CPUFreqMonitor *monitor);
static GList *cpufreq_monitor_libcpufreq_get_available_frequencies (CPUFreqMonitor *monitor);
static GList *cpufreq_monitor_libcpufreq_get_available_governors (CPUFreqMonitor *monitor);
G_DEFINE_TYPE (CPUFreqMonitorLibcpufreq, cpufreq_monitor_libcpufreq, CPUFREQ_TYPE_MONITOR)
#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 1, 0)
typedef struct cpufreq_available_frequencies CPUFreqFrequencyList;
#else
typedef struct cpufreq_frequencies CPUFreqFrequencyList;
#define cpufreq_get_available_frequencies(cpu) cpufreq_get_frequencies ("available", cpu)
#define cpufreq_put_available_frequencies(first) cpufreq_put_frequencies (first)
#endif
typedef struct cpufreq_policy CPUFreqPolicy;
typedef struct cpufreq_available_governors CPUFreqGovernorList;
static void
cpufreq_monitor_libcpufreq_init (CPUFreqMonitorLibcpufreq *monitor)
{
}
static GObject *
cpufreq_monitor_libcpufreq_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_params)
{
GObject *object;
gulong max_freq, min_freq;
guint cpu;
object = G_OBJECT_CLASS (
cpufreq_monitor_libcpufreq_parent_class)->constructor (type,
n_construct_properties,
construct_params);
g_object_get (G_OBJECT (object),
"cpu", &cpu,
NULL);
if (cpufreq_get_hardware_limits (cpu, &min_freq, &max_freq) != 0) {
g_warning ("Error getting CPUINFO_MAX\n");
max_freq = -1;
}
g_object_set (G_OBJECT (object),
"max-frequency", max_freq,
NULL);
return object;
}
static void
cpufreq_monitor_libcpufreq_class_init (CPUFreqMonitorLibcpufreqClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
CPUFreqMonitorClass *monitor_class = CPUFREQ_MONITOR_CLASS (klass);
object_class->constructor = cpufreq_monitor_libcpufreq_constructor;
monitor_class->run = cpufreq_monitor_libcpufreq_run;
monitor_class->get_available_frequencies = cpufreq_monitor_libcpufreq_get_available_frequencies;
monitor_class->get_available_governors = cpufreq_monitor_libcpufreq_get_available_governors;
}
CPUFreqMonitor *
cpufreq_monitor_libcpufreq_new (guint cpu)
{
CPUFreqMonitorLibcpufreq *monitor;
monitor = g_object_new (CPUFREQ_TYPE_MONITOR_LIBCPUFREQ,
"cpu", cpu, NULL);
return CPUFREQ_MONITOR (monitor);
}
#if LINUX_VERSION_CODE > KERNEL_VERSION(4, 7, 0)
extern int cpupower_is_cpu_online (unsigned int cpu);
#endif
static gboolean
cpufreq_monitor_libcpufreq_run (CPUFreqMonitor *monitor)
{
guint cpu;
CPUFreqPolicy *policy;
g_object_get (G_OBJECT (monitor), "cpu", &cpu, NULL);
policy = cpufreq_get_policy (cpu);
if (!policy) {
/* Check whether it failed because
* cpu is not online.
*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0)
if (!cpufreq_cpu_exists (cpu)) {
#else
if (cpupower_is_cpu_online (cpu)) {
#endif
g_object_set (G_OBJECT (monitor), "online", FALSE, NULL);
return TRUE;
}
return FALSE;
}
g_object_set (G_OBJECT (monitor),
"online", TRUE,
"governor", policy->governor,
"frequency", cpufreq_get_freq_kernel (cpu),
NULL);
cpufreq_put_policy (policy);
return TRUE;
}
static gint
compare (gconstpointer a, gconstpointer b)
{
gint aa, bb;
aa = atoi ((gchar *) a);
bb = atoi ((gchar *) b);
if (aa == bb)
return 0;
else if (aa > bb)
return -1;
else
return 1;
}
static GList *
cpufreq_monitor_libcpufreq_get_available_frequencies (CPUFreqMonitor *monitor)
{
GList *list = NULL;
guint cpu;
CPUFreqFrequencyList *freqs, *freq;
g_object_get (G_OBJECT (monitor),
"cpu", &cpu, NULL);
freqs = cpufreq_get_available_frequencies (cpu);
if (!freqs)
return NULL;
for (freq = freqs; freq; freq = freq->next) {
gchar *frequency;
frequency = g_strdup_printf ("%lu", freq->frequency);
if (!g_list_find_custom (list, frequency, compare))
list = g_list_prepend (list, frequency);
else
g_free (frequency);
}
cpufreq_put_available_frequencies (freqs);
return g_list_sort (list, compare);
}
static GList *
cpufreq_monitor_libcpufreq_get_available_governors (CPUFreqMonitor *monitor)
{
guint cpu;
GList *list = NULL;
CPUFreqGovernorList *govs, *gov;
g_object_get (G_OBJECT (monitor),
"cpu", &cpu, NULL);
govs = cpufreq_get_available_governors (cpu);
if (!govs)
return NULL;
for (gov = govs; gov; gov = gov->next) {
list = g_list_prepend (list, g_strdup (gov->governor));
}
cpufreq_put_available_governors (govs);
return list;
}
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