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Update rpiInfo.c for correct disk usage in % #47

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Update rpiInfo.c for correct disk usage in % #47

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33 changes: 17 additions & 16 deletions hardware/rpiInfo/rpiInfo.c
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@
#include <fcntl.h>
#include "st7735.h"
#include <stdlib.h>
#include <sys/statvfs.h>

/*
* Get the IP address of wlan0 or eth0
Expand Down Expand Up @@ -170,21 +171,21 @@ void get_sd_memory(uint32_t *MemSize, uint32_t *freesize)
*/
uint8_t get_hard_disk_memory(uint16_t *diskMemSize, uint16_t *useMemSize)
{
*diskMemSize = 0;
*useMemSize = 0;
uint8_t diskMembuff[10] = {0};
uint8_t useMembuff[10] = {0};
FILE *fd = NULL;
fd=popen("df -l | grep /dev/sda | awk '{printf \"%s\", $(2)}'","r");
fgets(diskMembuff,sizeof(diskMembuff),fd);
fclose(fd);

fd=popen("df -l | grep /dev/sda | awk '{printf \"%s\", $(3)}'","r");
fgets(useMembuff,sizeof(useMembuff),fd);
fclose(fd);

*diskMemSize = atoi(diskMembuff)/1024/1024;
*useMemSize = atoi(useMembuff)/1024/1024;
struct statvfs fs;
if (statvfs("/", &fs) != 0) {
*diskMemSize = 0;
*useMemSize = 0;
return 1; // Fehler
}

unsigned long long total = (unsigned long long) fs.f_blocks * fs.f_frsize;
unsigned long long free = (unsigned long long) fs.f_bfree * fs.f_frsize;
unsigned long long used = total - free;

*diskMemSize = (uint16_t)(total >> 20); // MB
*useMemSize = (uint16_t)(used >> 20); // MB

return 0;
}

/*
Expand Down Expand Up @@ -225,4 +226,4 @@ uint8_t get_cpu_message(void)
syCpu = atoi(syCpubuff);
return usCpu+syCpu;

}
}