2 * Copyright (C) 2010-2014 jeanfi@gmail.com
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 #define _(str) gettext(str)
29 #include <NVCtrl/NVCtrl.h>
30 #include <NVCtrl/NVCtrlLib.h>
36 /* Returns the temperature (Celsius) of a NVIDIA GPU. */
37 static int get_temp(struct psensor *sensor)
42 res = XNVCTRLQueryTargetAttribute(display,
43 NV_CTRL_TARGET_TYPE_GPU,
46 NV_CTRL_GPU_CORE_TEMPERATURE,
52 log_debug(_("NVIDIA proprietary driver not used or cannot "
53 "retrieve NVIDIA GPU temperature."));
57 static struct psensor *create_sensor(int id, int values_len)
64 sprintf(name, "GPU%d", id);
66 sid = malloc(strlen("NVIDIA") + 1 + strlen(name) + 1);
67 sprintf(sid, "NVIDIA %s", name);
69 t = SENSOR_TYPE_NVCTRL | SENSOR_TYPE_GPU | SENSOR_TYPE_TEMP;
71 s = psensor_create(sid,
73 strdup(_("NVIDIA GPU")),
83 Opens connection to X server and returns the number
86 Return 0 if no NVIDIA gpus or cannot get information.
92 display = XOpenDisplay(NULL);
95 log_err(_("Cannot open connection to X11 server."));
99 if (XNVCTRLQueryExtension(display, &evt, &err) &&
100 XNVCTRLQueryTargetCount(display, NV_CTRL_TARGET_TYPE_GPU, &n))
103 log_err(_("Failed to retrieve NVIDIA information."));
108 void nvidia_psensor_list_update(struct psensor **sensors)
110 struct psensor **ss, *s;
116 if (s->type & SENSOR_TYPE_NVCTRL)
117 psensor_set_current_value(s, get_temp(s));
123 struct psensor **nvidia_psensor_list_add(struct psensor **sensors,
127 struct psensor **tmp, **ss, *s;
132 for (i = 0; i < n; i++) {
133 s = create_sensor(i, values_len);
135 tmp = psensor_list_add(ss, s);
146 void nvidia_cleanup()
149 XCloseDisplay(display);