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Added option for reading GPU temperature from sysfs

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gryf
2013-10-06 16:19:28 +02:00
parent 85bd74b4f5
commit d029966151
1 changed files with 76 additions and 27 deletions
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103
wmtempnv/wmtempnv.c
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@@ -35,25 +35,50 @@
void display_values(int, int, int);
int get_temp(int core_number, Display*);
int get_offset(int temp, int cpu);
void display_help(char* progname);
int get_gpu_temp(char* path, Display *disp);
void read_file_into(char *filepath, int *output);
Display *display;
int main(int argc, char **argv){
short got_path=0;
int temp1=0, temp2=0, temp3=0;
/* offset is one of 0 (normal), 7 (alert), 14 (warning) */
int offset1=0, offset2=0, offset3=0;
int counter = 0;
char* path = "";
display = XOpenDisplay(NULL);
openXwindow(argc, argv, wmtempnv_master2_xpm, wmtempnv_mask_bits,
if (argc > 1) {
if (argc > 2) {
display_help(argv[0]);
exit(2);
}
if (argc == 2 &&
(strcmp(argv[1], "--help") == 0 ||
strcmp(argv[1], "-h") == 0)) {
display_help(argv[0]);
exit(0);
}
got_path = 1;
path = argv[1];
}
openXwindow(argc, argv, wmtempnv_master2_xpm, wmtempnv_mask_bits,
wmtempnv_mask_width, wmtempnv_mask_height);
while(TRUE){
temp1 = get_temp(0, display);
offset1 = get_offset(temp1, 1);
temp2 = get_temp(1, display);
offset2 = get_offset(temp2, 1);
temp3 = get_temp(2, display);
offset3 = get_offset(temp3, 0);
if (counter < 1){
counter = 5;
temp1 = get_temp(0, display);
offset1 = get_offset(temp1, 1);
temp2 = get_temp(1, display);
offset2 = get_offset(temp2, 1);
temp3 = get_gpu_temp(path, display);
offset3 = get_offset(temp3, 0);
}
// core 1
copyXPMArea(0, 87 + offset1, 23, 7, 4, 7); // LCD: "CPU"
@@ -73,7 +98,7 @@ int main(int argc, char **argv){
display_values(temp3, 28, offset3);
RedrawWindow();
counter--;
sleep(1);
usleep(100000);
}
}
@@ -113,30 +138,54 @@ void display_values(int temp, int offset, int offset2){
}
int get_temp(int core_number, Display *disp){
// Core temperature. argument is core number. core no.2 is GPU
// Core temperature. argument is core number.
FILE *file;
char filename[MAXFNAME];
int core_temp = 0;
Bool res;
if(core_number == 2){
res = XNVCTRLQueryTargetAttribute(disp,
NV_CTRL_TARGET_TYPE_GPU, 0, 0,
NV_CTRL_GPU_CORE_TEMPERATURE, &core_temp);
if (res == False) core_temp = 0;
}else{
snprintf(filename, MAXFNAME,
"/sys/bus/platform/devices/coretemp.0/temp%d_input",
core_number + 2);
if((file = fopen(filename, "r")) != NULL){
if(fscanf(file, "%d", &core_temp) != EOF){
core_temp = core_temp / 1000;
fclose(file);
}
}
}
snprintf(filename, MAXFNAME,
"/sys/bus/platform/devices/coretemp.0/temp%d_input",
core_number + 2);
read_file_into(filename, &core_temp);
return core_temp;
}
int get_gpu_temp(char* path, Display *disp){
// return GPU temperature. Argument is path in sysfs or empty string.
FILE *file;
char filename[MAXFNAME];
int gpu_temp = 0;
Bool res;
if (strcmp(path, "") == 0){
res = XNVCTRLQueryTargetAttribute(disp,
NV_CTRL_TARGET_TYPE_GPU, 0, 0,
NV_CTRL_GPU_CORE_TEMPERATURE, &gpu_temp);
if (res == False) gpu_temp = 0;
}else{
read_file_into(path, &gpu_temp);
}
return gpu_temp;
}
void read_file_into(char *filepath, int *output) {
// Read an integer from the provided filepath and write it in the address
FILE *fp;
if((fp = fopen(filepath, "r")) != NULL){
if(fscanf(fp, "%d", output) != EOF){
*output = *output / 1000;
fclose(fp);
}
}
}
void display_help(char* progname){
printf("Dockapp for monitoring CPU and Nvidia GPU temperatures.\n");
printf("Usage:\n\t%s [full path for temp in sysfs]\n\n", progname);
printf("As an optional parameter you can provide `temp_input' ");
printf("full path from sysfs,\ncorresponding to your gfx card ");
printf("to read temperature from. Otherwise\nfunctionality of ");
printf("nv-control will be used (package nvidia-settings).\n");
}