Moved battery status to fileRead().

[sysstatus.git] / statuses / battery.c

diff --git a/statuses/battery.c b/statuses/battery.c
new file mode 100644 (file)
index 0000000..e3e3c1b
--- /dev/null
+++ b/statuses/battery.c
@@ -0,0 +1,95 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "string.h"
+#include "battery.h"
+
+#ifndef POWER_BASEDIR
+       #define POWER_BASEDIR "/sys/class/power_supply/"
+#endif
+
+
+void status_battery(char *batname)
+{
+       char batpath[256];
+       int batpathlen;
+
+       char stline[16];
+       ssize_t stlen;
+
+       int batt_now = 0;
+       int batt_full = -1;
+       int batt_percent = -1;
+       int batt_current = 1;
+       int batt_voltage = 0;
+       float batt_time = -1;
+       float batt_watts = -1;
+
+
+       // Prepare path
+       batpathlen = sizeof(POWER_BASEDIR) - 1 + strlen(batname);
+       if (batpathlen + 1 + sizeof("/energy_full") >= sizeof(batpath))
+       {
+               statusError("status_battery",
+                       "batpath buffer too small",
+                       batname);
+               return;
+       }
+       strcpy(batpath, POWER_BASEDIR);
+       strcat(batpath, batname);
+
+
+       // Get info
+       strcpy(&batpath[batpathlen], "/energy_now");
+       stlen = fileRead(stline, sizeof(stline), batpath);
+       if (stlen > 0)
+               batt_now = atoi(stline);
+
+       strcpy(&batpath[batpathlen], "/energy_full");
+       stlen = fileRead(stline, sizeof(stline), batpath);
+       if (stlen > 0)
+               batt_full = atoi(stline);
+
+       strcpy(&batpath[batpathlen], "/current_now");
+       stlen = fileRead(stline, sizeof(stline), batpath);
+       if (stlen > 0)
+               batt_current = atoi(stline);
+
+       strcpy(&batpath[batpathlen], "/voltage_now");
+       stlen = fileRead(stline, sizeof(stline), batpath);
+       if (stlen > 0)
+               batt_voltage = atoi(stline);
+
+
+       // Prettyprint
+       if (batt_full > 0)
+               batt_percent = batt_now / (batt_full / 100);
+
+       if (batt_percent <= 40) // 40
+       {
+               if (batt_percent <= 25) // 25
+               {
+                       if (batt_percent <= 10) // 10
+                               fputs("^fg(red)", stdout);
+                       else // 11-25%
+                               fputs("^fg(orange)", stdout);
+               }
+               else // 26-40%
+                       fputs("^fg(yellow)", stdout);
+       }
+       else
+       {
+               if (batt_percent > 70) // 70
+                       fputs("^fg(white)", stdout);
+               else // 41-70%
+                       fputs("^fg(green)", stdout);
+       }
+
+       batt_time = (float)batt_now / (float)batt_current;
+       batt_watts = ((float)batt_voltage / 1000000) * ((float)batt_current / 10000000);
+
+       if (batt_watts == 0)    // fully charged and not in use
+               printf(" %s: %d%% _ _ ", batname, batt_percent);
+       else
+               printf(" %s: %d%% %.1fh %.1fW ",
+                       batname, batt_percent, batt_time, batt_watts);
+}