wmacpi/acpi.c

   1 /*
   2  * acpi-ng: command line acpi battery status tool.
   3  *
   4  * Written by Simon Fowler <simon@dreamcraft.com.au>, 2003-06-20.
   5  * Copyright 2003-06-20 Dreamcraft Pty Ltd.
   6  *
   7  * This file is distributed under the GNU General Public License,
   8  * version 2. Please see the COPYING file for details.
   9  */
  10
  11 /*
  12  * 2003-06-20.
  13  * I'm getting sick of not having a convenient way to query battery
  14  * status on the command line, so I'm hacking up this - a quick little
  15  * command line tool to display current battery status, using the same
  16  * libacpi code as wmacpi-ng.
  17  */
  18
  19 #define _GNU_SOURCE
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <getopt.h>
  25 #include <unistd.h>
  26
  27 #include "libacpi.h"
  28
  29 #define ACPI_VER "1.99"
  30
  31 global_t *globals;
  32
  33 void usage(char *name)
  34 {
  35         printf("%s: query battery status on ACPI enabled systems.\n"
  36                "Usage:\n"
  37                "%s [-h] [-a samples]\n"
  38                " h - display this help information\n"
  39                " a - average remaining time over some number of samples\n"
  40                "     much more accurate than using a single sample\n"
  41                " v - increase verbosity\n",
  42                name, name);
  43 }
  44
  45 void print_version(void)
  46 {
  47         printf("acpi version %s\n", ACPI_VER);
  48         printf(" Using libacpi version %s\n", LIBACPI_VER);
  49 }
  50
  51 int main(int argc, char *argv[])
  52 {
  53         int i, j, ch;
  54         int sleep_time = 0;
  55         int samples = 1;
  56         battery_t *binfo;
  57         adapter_t *ap;
  58
  59         while((ch = getopt(argc, argv, "hvVa:")) != EOF) {
  60                 switch(ch) {
  61                 case 'h':
  62                         usage(argv[0]);
  63                         return 0;
  64                 case 'v':
  65                         verbosity++;
  66                         break;
  67                 case 'V':
  68                         print_version();
  69                         return 0;
  70                 case 'a':
  71                         if(optarg != NULL) {
  72                                 samples = atoi(optarg);
  73                                 if(samples > 1000 || samples <= 0) {
  74                                         fprintf(stderr, "Please specify a reasonable number of samples\n");
  75                                         exit(1);
  76                                 }
  77                         }
  78                         pinfo("samples: %d\n", samples);
  79                         sleep_time = 1000000/samples;
  80                         break;
  81                 default:
  82                         usage(argv[0]);
  83                         return 1;
  84                 }
  85         }
  86
  87         globals = (global_t *) malloc(sizeof(global_t));
  88
  89         power_init();
  90         /* we want to acquire samples over some period of time, so . . . */
  91         for(i = 0; i < samples + 2; i++) {
  92                 for(j = 0; j < batt_count; j++)
  93                         acquire_batt_info(j);
  94                 acquire_global_info();
  95                 usleep(sleep_time);
  96         }
  97
  98         ap = &globals->adapter;
  99         if(ap->power == AC) {
 100                 printf("On AC Power");
 101                 for(i = 0; i < batt_count; i++) {
 102                         binfo = &batteries[i];
 103                         if(binfo->present && (binfo->charge_state == CHARGE)) {
 104                                 printf("; Battery %s charging", binfo->name);
 105                                 printf(", currently at %2d%%", binfo->percentage);
 106                                 if(binfo->charge_time >= 0)
 107                                         printf(", %2d:%02d remaining",
 108                                                binfo->charge_time/60,
 109                                                binfo->charge_time%60);
 110                         }
 111                 }
 112                 printf("\n");
 113         } else if(ap->power == BATT) {
 114                 printf("On Battery");
 115                 for(i = 0; i < batt_count; i++) {
 116                         binfo = &batteries[i];
 117                         if(binfo->present && (binfo->percentage >= 0))
 118                                 printf(", Battery %s at %d%%", binfo->name,
 119                                        binfo->percentage);
 120                 }
 121                 if(globals->rtime >= 0)
 122                         printf("; %d:%02d remaining", globals->rtime/60,
 123                                globals->rtime%60);
 124                 printf("\n");
 125         }
 126         return 0;
 127 }
 128