aboutsummaryrefslogtreecommitdiffstats
path: root/util/scan/dvb-c/se-Gothnet
diff options
context:
space:
mode:
Diffstat (limited to 'util/scan/dvb-c/se-Gothnet')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 01:11:11 +0000
ref='#n108'>108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 
/* $Id: battery.c,v 1.3 2001/08/05 17:13:29 reinelt Exp $
 *
 * APM and ACPI specific functions
 *
 * Copyright 2001 by Leo T�tsch (lt@toetsch.at)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *
 * $Log: battery.c,v $
 * Revision 1.3  2001/08/05 17:13:29  reinelt
 *
 * cleaned up inlude of sys/time.h and time.h
 *
 * Revision 1.2  2001/03/02 11:04:08  reinelt
 *
 * cosmetic cleanups (comment headers)
 *
 */

/* exported functions:
 *
 * int Battery (double *perc, int *status, double *lasting);
 *   returns:
 *     perc ... percentage of battery (0..100)
 *     status .. 0 (online), 1 (charging), 2 (discharging)
 *     lasting ... seconds, how long battery will last
 * 
 */

#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <time.h>
#include <sys/stat.h>
#include <sys/types.h>

#include "debug.h"


int Battery (int *perc, int *status, double *dur) 
{
  static int fd = -2;
  static int apm = 0;

  if (fd==-1) return -1;

  if (fd==-2) {
    fd = open("/proc/apm", O_RDONLY | O_NDELAY);
    if (fd==-1) {
      error ("open(/proc/apm) failed: %s", strerror(errno));
      fd = open("/proc/acpi", O_RDONLY | O_NDELAY); /* FIXME */
      if (fd==-1) {
        error ("open(/proc/acpi) failed: %s", strerror(errno));
        return -1;
      }
      debug ("open(/proc/acpi)=%d", fd);
    }
    else {
      debug ("open(/proc/apm)=%d", fd);
      apm = 1;
    }
  }
  if (lseek(fd, 0L, SEEK_SET)!=0) {
    error ("lseek(/proc/apm|acpi) failed: %s", strerror(errno));
    fd=-1;
    return -1;
  }
  if (apm) {
    int f3, f4;
    char eh[4];
    char buffer[128];
    /* /usr/src/linux/arch/i386/kernel/apm.c :
      	p += sprintf(p, "%s %d.%d 0x%02x 0x%02x 0x%02x 0x%02x %d%% %d %s\n",
		     driver_version,
		     (apm_bios_info.version >> 8) & 0xff,
		     apm_bios_info.version & 0xff,
		     apm_bios_info.flags,
		     ac_line_status,
		     battery_status,
		     battery_flag,
		     percentage,
		     time_units,
		     units);
	   3) AC line status
	      0x00: Off-line
	      0x01: On-line
	      0x02: On backup power (BIOS >= 1.1 only)
	      0xff: Unknown
	   4) Battery status
	      0x00: High
	      0x01: Low
	      0x02: Critical
	      0x03: Charging
	      0x04: Selected battery not present (BIOS >= 1.2 only)
	      0xff: Unknown
    */
    
    if (read (fd, &buffer, sizeof(buffer)-1)==-1) {
      error ("read(/proc/apm) failed: %s", strerror(errno));
      fd=-1;
      return -1;
    }
    /*              Ver v.v fl  as bs bf perc tu u*/
    sscanf(buffer, "%*s %*s %*s %x %x %*s %d%% %lf %3s", &f3, &f4, perc, dur, eh);
    if (f3 == 0x1) 
      *status = 0; /* Online */
    else
      *status = 2; /* Offline = discharging */
    if (f4 == 0x3)
      *status = 1; /* charging */
    eh[1] = '\0'; /* m | s */
    if (*eh == 'm')
      *dur *= 60;
#ifdef DEBUG_BATT    
    info("perc=%d, f3=%x, f4=%x, stat=%d, dur=%lf", *perc,f3,f4, *status, *dur);
#endif    
  }
  else {
    /* FIXME: parse ACPI */
  }
  return 0;
}