wmacpi/libapm.c

   1 #include <stdio.h>
   2 #include "wmacpi.h"
   3
   4 #ifdef APM
   5 #ifdef PRO
   6 extern char *state[];
   7 #endif
   8 extern APMInfo *apminfo;
   9 extern int crit_level;
  10
  11 int power_init(void)
  12 {
  13     FILE *apm;
  14
  15     if (!(apm = fopen("/proc/apm", "r"))) {
  16         fprintf(stderr, "This system does not support APM\n");
  17         return 1;
  18     }
  19     fclose(apm);
  20
  21     return 0;
  22 }
  23
  24 void acquire_info(void)
  25 {
  26     FILE *apm;
  27     char buf[256];
  28     char min[10];
  29
  30     int ac_line, batt, percent, rtime;
  31
  32 #ifdef PRO
  33     /* testing */
  34     if (!(apm = fopen("apm", "r")))
  35         return;
  36 #else
  37     if (!(apm = fopen("/proc/apm", "r")))
  38         return;
  39 #endif
  40
  41     fgets(buf, 255, apm);
  42     sscanf(buf, "%*s %*s %*s %x %x %*s %d%% %d %s",
  43            &ac_line, &batt, &percent, &rtime, min);
  44
  45     eprint(0, "%02x %02x, %03d%%, %d", ac_line, batt, percent, rtime);
  46     apminfo->percentage = percent;
  47     apminfo->rtime = rtime;
  48
  49     switch (ac_line) {
  50     case 0:     /* on battery.  calculate status. handle charging under AC */
  51         switch (batt) {
  52         case 0:
  53             apminfo->power = HIGH;
  54             break;
  55         case 1:
  56             apminfo->power = LOW;
  57             break;
  58         case 2:
  59             apminfo->power = CRIT;
  60             break;
  61         }
  62
  63         /* check user-defined critical alarm */
  64         if (apminfo->percentage <= apminfo->crit_level)
  65             apminfo->power = CRIT;
  66
  67         break;
  68     case 1:     /* on AC power.  Check if battery is being charged */
  69 #ifdef RETARDED_APM
  70         /* this is incase your battery is "charging" all the fucking time,
  71          * even when it's actually done charging */
  72         if ((batt == 3) && (percent != 100))
  73 #else
  74         if (batt == 3)
  75 #endif
  76             apminfo->power = CHARGING;
  77         else
  78             apminfo->power = POWER;
  79         break;
  80 #ifdef STUPID_APM
  81         /* treatment for GAY apm bioses that show wrong time
  82          * remaining when AC is plugged in */
  83         apminfo->rtime = 0;
  84 #endif
  85     }
  86     fclose(apm);
  87     process_plugin_timer();
  88
  89     eprint(1, "current state: %s (%d)", state[apminfo->power], apminfo->power);
  90 }
  91 #endif /* APM */