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/* Copyright (c) 2011 Amir Aupov <fads93@gmail.com>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
/* Package includes */
#include <X11/Xlib.h>
#include <NVCtrl/NVCtrl.h>
#include <NVCtrl/NVCtrlLib.h>
#include <nvidia.h>
#include <types.h>
#include <sensors-interface-common.h>
#include <middlelayer.h>
/* Gtk/Glib includes */
#include <glib.h>
/* Global includes */
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
/* Global variables */
Display *nvidia_sensors_display;
/* Local functions */
int read_gpus (t_chip *chip);
/* Defines */
#define ZERO_KELVIN -273
int initialize_nvidia (GPtrArray *chips) {
int retval;
int num_gpus;
t_chip *chip;
t_chipfeature *chipfeature;
TRACE ("enters initialize_nvidia");
chip = g_new0 (t_chip, 1);
//chip -> chip_name = g_strdup(_("nvidia"));
chip -> chip_features = g_ptr_array_new ();
chip -> num_features = 0;
chip -> description = g_strdup(_("NVidia GPU core temperature"));
chip -> name = g_strdup(_("nvidia"));
chip -> sensorId = g_strdup("nvidia");
chip -> type = GPU;
num_gpus = read_gpus (chip);
if (chip -> num_features > 0) {
int i;
for (i = 0; i < num_gpus; i++) {
chipfeature = g_ptr_array_index (chip -> chip_features, i);
g_assert (chipfeature != NULL);
chipfeature -> address = i;
chipfeature -> name = g_strdup(chipfeature -> devicename);
chipfeature -> color = g_strdup ("#000000");
chipfeature -> valid = TRUE;
chipfeature -> formatted_value = g_strdup ("0.0");
chipfeature -> raw_value = 0.0;
chipfeature -> class = TEMPERATURE;
chipfeature -> min_value = 10.0;
chipfeature -> max_value = 50.0;
chipfeature -> show = FALSE;
}
g_ptr_array_add (chips, chip);
retval = 2;
} else retval = 0;
TRACE ("leaves initialize_nvidia");
return retval;
}
double get_nvidia_value (int gpu) {
int temp;
TRACE ("enters get_nvidia_value for %d gpu", gpu);
if (!(XNVCTRLQueryTargetAttribute (nvidia_sensors_display,
NV_CTRL_TARGET_TYPE_GPU,
gpu,
0,
NV_CTRL_GPU_CORE_TEMPERATURE,
&temp))) {
TRACE ("NVCtrl doesn't work properly");
return ZERO_KELVIN;
}
TRACE ("leaves get_nvidia_value for %d gpu", gpu);
return (double) (1.0 * temp);
}
void refresh_nvidia (gpointer chip_feature, gpointer data) {
t_chipfeature *cf;
double value;
t_sensors *sensors;
g_assert (chip_feature != NULL);
TRACE ("enters refresh_nvidia");
if (data) sensors = (t_sensors *) data;
cf = (t_chipfeature *) chip_feature;
value = get_nvidia_value (cf -> address);
if (value == ZERO_KELVIN) return;
g_free (cf -> formatted_value);
cf -> formatted_value = g_strdup_printf(_("%.1f °C"), value);
cf -> raw_value = value;
TRACE ("leaves refresh_nvidia");
}
int read_gpus (t_chip *chip) {
t_chipfeature *chipfeature;
int num_gpus;
int event, error;
int i;
TRACE ("enters read_gpus");
/* create the connection to the X server */
if (!(nvidia_sensors_display = XOpenDisplay (NULL))) {
TRACE ("failed to connect to X server");
return 0;
}
/* check if the NVCtrl is available on this X server
* if so - add sensors*/
if (!(XNVCTRLQueryExtension (nvidia_sensors_display,
&event, &error))) {
TRACE ("NVCtrl is not available");
return 0;
}
if (!(XNVCTRLQueryTargetCount (nvidia_sensors_display,
NV_CTRL_TARGET_TYPE_GPU,
&num_gpus))) {
TRACE ("No NVidia devices found");
return 0;
}
for (i = 0; i < num_gpus; i++){
gchar *device_name = (gchar*) malloc (100 * sizeof(gchar));
if (XNVCTRLQueryTargetStringAttribute (
nvidia_sensors_display,
NV_CTRL_TARGET_TYPE_GPU,
i,
0,
NV_CTRL_STRING_PRODUCT_NAME,
&device_name))
TRACE ("GPU%d:%s", i, device_name);
chipfeature = g_new0 (t_chipfeature, 1);
chipfeature -> devicename = g_strdup (device_name);
chipfeature -> name = g_strdup (device_name);
g_ptr_array_add (chip -> chip_features, chipfeature);
chip -> num_features++;
}
TRACE ("leaves read_gpus");
return num_gpus;
}
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