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Add support for alternate applesmc module device path.

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Robert Abram 2021-09-27 09:25:57 -05:00 committed by Andrew Gaul
parent d4473d440b
commit 1941f45395
1 changed files with 35 additions and 4 deletions
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39
src/mbpfan.c
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@ -31,6 +31,7 @@
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <unistd.h>
#include <string.h>
#include <time.h>
@ -52,6 +53,7 @@
#define CORETEMP_PATH "/sys/devices/platform/coretemp.0"
#define APPLESMC_PATH "/sys/devices/platform/applesmc.768"
#define ALT_APPLESMC_PATH "/sys/bus/acpi/drivers/applesmc"
/* temperature thresholds
* low_temp - temperature below which fan speed will be at minimum
@ -74,6 +76,9 @@ int polling_interval = 1;
t_sensors *sensors = NULL;
t_fans *fans = NULL;
char applesmc_path[PATH_MAX];
char applesmc_fan_path[PATH_MAX];
char *smprintf(const char *fmt, ...)
{
@ -273,7 +278,7 @@ t_fans *retrieve_fans()
char *path_fan_max = NULL;
char *path_fan_min = NULL;
const char *path_begin = "/sys/devices/platform/applesmc.768/fan";
const char *path_begin = (const char *) &applesmc_fan_path;
const char *path_output_end = "_output";
const char *path_label_end = "_label";
const char *path_man_end = "_manual";
@ -553,15 +558,41 @@ void check_requirements(const char *program_path)
}
closedir(dir);
memset(&applesmc_path, 0, PATH_MAX);
memset(&applesmc_fan_path, 0, PATH_MAX);
dir = opendir(APPLESMC_PATH);
if (ENOENT == errno) {
mbp_log(LOG_ERR, "%s needs applesmc support. Please either load it or build it into the kernel. Exiting.", program_path);
exit(EXIT_FAILURE);
if (ENOENT != errno) {
strncpy((char *) &applesmc_path, APPLESMC_PATH, PATH_MAX);
} else {
/**
* Check for alternate ACPI device path for newer macbooks
*/
closedir(dir);
dir = opendir(ALT_APPLESMC_PATH);
if (ENOENT != errno) {
struct dirent *ent;
while ((ent = readdir(dir)) != NULL) {
if (strncmp("APP", (const char *) &ent->d_name, 3) == 0) {
snprintf((char *) &applesmc_path, PATH_MAX, "%s/%s", ALT_APPLESMC_PATH, (char *) &ent->d_name);
break;
}
}
}
}
closedir(dir);
if (strlen(applesmc_path) != 0) {
strncpy((char *) &applesmc_fan_path, (char *) &applesmc_path, PATH_MAX);
strcat((char *) &applesmc_fan_path, "/fan");
if (verbose) mbp_log(LOG_INFO, "applesmc device path: %s", (char *) &applesmc_path);
} else {
mbp_log(LOG_ERR, "%s needs applesmc support. Please either load it or build it into the kernel. Exiting.", program_path);
exit(EXIT_FAILURE);
}
}
int get_max_mhz(void)