pm_conf.c

   1 /*
   2  * power-manager
   3  * Copyright (c) 2012 Samsung Electronics Co., Ltd.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  * http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16 */
  17
  18 #include <stdlib.h>
  19 #include <string.h>
  20 #include <stdio.h>
  21
  22 #include "pm_conf.h"
  23
  24 enum {
  25         IDX_NAME = 0,
  26         IDX_DEFAULT,
  27         IDX_END
  28 };
  29
  30 static char *def_values[][IDX_END] = {
  31         {"PM_INPUT", "/dev/event0:/dev/event1"},
  32         {"PM_TO_START", "0"},
  33         {"PM_TO_NORMAL", "600"},
  34         {"PM_TO_LCDDIM", "5"},
  35         {"PM_TO_LCDOFF", "5"},
  36         {"PM_TO_SLEEP", "0"},
  37         {"PM_SYS_POWER", "/sys/power/state"},
  38         {"PM_SYS_BRIGHT", "/sys/class/backlight/mobile-bl/brightness"},
  39         {"PM_SYS_BRIGHT", "/sys/class/backlight/mobile-bl/max_brightness"},
  40         {"PM_SYS_BLPWR", "/sys/class/backlight/mobile-bl/bl_power"},
  41         {"PM_SYS_DIMBRT", "0"},
  42         {"PM_SYS_BLON", "0"},
  43         {"PM_SYS_BLOFF", "4"},
  44         {"PM_SYS_FB_NORMAL", "1"},
  45         {"PM_SYS_STATE", "mem"},
  46         {"PM_EXEC_PRG", NULL},
  47         {"PM_END", ""},
  48 };
  49
  50 static char *_find_default(char *name)
  51 {
  52         char *ret = NULL;
  53         int i = 0;
  54
  55         while (strcmp("PM_END", def_values[i][IDX_NAME])) {
  56                 if (!strcmp(name, def_values[i][IDX_NAME])) {
  57                         ret = def_values[i][IDX_DEFAULT];
  58                         break;
  59                 }
  60                 i++;
  61         }
  62         return ret;
  63 }
  64
  65 int get_env(char *name, char *buf, int size)
  66 {
  67         char *ret;
  68
  69         ret = getenv(name);
  70         if ((ret == NULL) || (strlen(ret) > 1024)) {
  71                 ret = _find_default(name);
  72                 if (ret)
  73                         snprintf(buf, size, "%s", ret);
  74                 else
  75                         snprintf(buf, size, "");
  76         } else {
  77                 snprintf(buf, size, "%s", ret);
  78         }
  79
  80         return 0;
  81 }