wmacpi/wmacpi-cli.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 global_t *globals;
  30
  31 void usage(char *name)
  32 {
  33         printf("%s: query battery status on ACPI enabled systems.\n"
  34                "Usage:\n"
  35                "%s [-h] [-a samples]\n"
  36                " h - display this help information\n"
  37                " a - average remaining time over some number of samples\n"
  38                "     much more accurate than using a single sample\n"
  39                " V - increase verbosity\n"
  40                " v - print version information\n",
  41                name, name);
  42 }
  43
  44 void print_version(void)
  45 {
  46         printf("wmacpi-cli version %s\n", WMACPI_VER);
  47         printf(" Using libacpi version %s\n", LIBACPI_VER);
  48 }
  49
  50 int main(int argc, char *argv[])
  51 {
  52         int i, j, ch;
  53         int sleep_time = 0;
  54         int samples = 1;
  55         battery_t *binfo;
  56         adapter_t *ap;
  57
  58         while((ch = getopt(argc, argv, "hvVa:")) != EOF) {
  59                 switch(ch) {
  60                 case 'h':
  61                         usage(argv[0]);
  62                         return 0;
  63                 case 'V':
  64                         verbosity++;
  65                         break;
  66                 case 'v':
  67                         print_version();
  68                         return 0;
  69                 case 'a':
  70                         if(optarg != NULL) {
  71                                 samples = atoi(optarg);
  72                                 if(samples > 1000 || samples <= 0) {
  73                                         fprintf(stderr, "Please specify a reasonable number of samples\n");
  74                                         exit(1);
  75                                 }
  76                         }
  77                         pinfo("samples: %d\n", samples);
  78                         sleep_time = 1000000/samples;
  79                         break;
  80                 default:
  81                         usage(argv[0]);
  82                         return 1;
  83                 }
  84         }
  85
  86         globals = (global_t *) malloc(sizeof(global_t));
  87
  88         power_init(globals);
  89         /* we want to acquire samples over some period of time, so . . . */
  90         for(i = 0; i < samples + 2; i++) {
  91                 for(j = 0; j < globals->battery_count; j++)
  92                         acquire_batt_info(globals, j);
  93                 acquire_global_info(globals);
  94                 usleep(sleep_time);
  95         }
  96
  97         ap = &globals->adapter;
  98         if(ap->power == AC) {
  99                 printf("On AC Power");
 100                 for(i = 0; i < globals->battery_count; i++) {
 101                         binfo = &batteries[i];
 102                         if(binfo->present && (binfo->charge_state == CHARGE)) {
 103                                 printf("; Battery %s charging", binfo->name);
 104                                 printf(", currently at %2d%%", binfo->percentage);
 105                                 if(binfo->charge_time >= 0)
 106                                         printf(", %2d:%02d remaining",
 107                                                binfo->charge_time/60,
 108                                                binfo->charge_time%60);
 109                         }
 110                 }
 111                 printf("\n");
 112         } else if(ap->power == BATT) {
 113                 printf("On Battery");
 114                 for(i = 0; i < globals->battery_count; i++) {
 115                         binfo = &batteries[i];
 116                         if(binfo->present && (binfo->percentage >= 0))
 117                                 printf(", Battery %s at %d%%", binfo->name,
 118                                        binfo->percentage);
 119                 }
 120                 if(globals->rtime >= 0)
 121                         printf("; %d:%02d remaining", globals->rtime/60,
 122                                globals->rtime%60);
 123                 printf("\n");
 124         }
 125         return 0;
 126 }
 127