ss_lowbat_handler.c

   1 /*
   2  * Copyright (c) 2012 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17
  18 #include <assert.h>
  19 #include <limits.h>
  20 #include <heynoti.h>
  21 #include <vconf.h>
  22 #include <sysman.h>
  23 #include <fcntl.h>
  24
  25 #include "ss_log.h"
  26 #include "ss_launch.h"
  27 #include "ss_noti.h"
  28 #include "ss_queue.h"
  29 #include "device-node.h"
  30 #include "include/ss_data.h"
  31
  32 #define BAT_MON_INTERVAL                30
  33 #define BAT_MON_INTERVAL_MIN            2
  34
  35 #define BATTERY_CHARGING                65535
  36 #define BATTERY_UNKNOWN                 -1
  37 #define BATTERY_FULL                    100
  38 #define BATTERY_NORMAL                  100
  39 #define BATTERY_WARNING_LOW             15
  40 #define BATTERY_CRITICAL_LOW            5
  41 #define BATTERY_POWER_OFF               1
  42 #define BATTERY_REAL_POWER_OFF  0
  43
  44 #define MAX_BATTERY_ERROR               10
  45 #define RESET_RETRY_COUNT               3
  46
  47 #define LOWBAT_EXEC_PATH                PREFIX"/bin/lowbatt-popup"
  48
  49 #define BATTERY_LEVEL_CHECK_FULL        95
  50 #define BATTERY_LEVEL_CHECK_HIGH        15
  51 #define BATTERY_LEVEL_CHECK_LOW         5
  52 #define BATTERY_LEVEL_CHECK_CRITICAL    1
  53
  54 #define _SYS_LOW_POWER "LOW_POWER"
  55
  56 struct lowbat_process_entry {
  57         unsigned cur_bat_state;
  58         unsigned new_bat_state;
  59         int (*action) (void *);
  60 };
  61
  62 static Ecore_Timer *lowbat_timer;
  63 static int cur_bat_state = BATTERY_UNKNOWN;
  64 static int cur_bat_capacity = -1;
  65
  66 static int bat_err_count = 0;
  67
  68 static int battery_warning_low_act(void *ad);
  69 static int battery_critical_low_act(void *ad);
  70 static int battery_power_off_act(void *ad);
  71
  72 static struct lowbat_process_entry lpe[] = {
  73         {BATTERY_NORMAL, BATTERY_WARNING_LOW, battery_warning_low_act},
  74         {BATTERY_WARNING_LOW, BATTERY_CRITICAL_LOW, battery_critical_low_act},
  75         {BATTERY_CRITICAL_LOW,  BATTERY_POWER_OFF,              battery_critical_low_act},
  76         {BATTERY_POWER_OFF,             BATTERY_REAL_POWER_OFF, battery_power_off_act},
  77         {BATTERY_NORMAL, BATTERY_CRITICAL_LOW, battery_critical_low_act},
  78         {BATTERY_WARNING_LOW,   BATTERY_POWER_OFF,              battery_critical_low_act},
  79         {BATTERY_CRITICAL_LOW,  BATTERY_REAL_POWER_OFF, battery_power_off_act},
  80         {BATTERY_NORMAL,                BATTERY_POWER_OFF,              battery_critical_low_act},
  81         {BATTERY_WARNING_LOW,   BATTERY_REAL_POWER_OFF, battery_power_off_act},
  82         {BATTERY_NORMAL,                BATTERY_REAL_POWER_OFF, battery_power_off_act},
  83 };
  84
  85 static int battery_warning_low_act(void *data)
  86 {
  87         char lowbat_noti_name[NAME_MAX];
  88
  89         heynoti_get_snoti_name(_SYS_LOW_POWER, lowbat_noti_name, NAME_MAX);
  90         ss_noti_send(lowbat_noti_name);
  91
  92         ss_action_entry_call_internal(PREDEF_LOWBAT, 1, WARNING_LOW_BAT_ACT);
  93         return 0;
  94 }
  95
  96 static int battery_critical_low_act(void *data)
  97 {
  98         ss_action_entry_call_internal(PREDEF_LOWBAT, 1, CRITICAL_LOW_BAT_ACT);
  99         return 0;
 100 }
 101
 102 static int battery_power_off_act(void *data)
 103 {
 104         ss_action_entry_call_internal(PREDEF_LOWBAT, 1, POWER_OFF_BAT_ACT);
 105         return 0;
 106 }
 107
 108 static int battery_charge_act(void *data)
 109 {
 110         return 0;
 111 }
 112
 113 int ss_lowbat_set_charge_on(int onoff)
 114 {
 115         if(vconf_set_int(VCONFKEY_SYSMAN_BATTERY_CHARGE_NOW, onoff)!=0) {
 116                 PRT_TRACE_ERR("fail to set charge vconf value");
 117                 return -1;
 118         }
 119         return 0;
 120 }
 121
 122 int ss_lowbat_is_charge_in_now()
 123 {
 124         int val = 0;
 125         if (device_get_property(DEVICE_TYPE_POWER, PROP_POWER_CHARGE_NOW, &val) < 0) {
 126                 PRT_TRACE_ERR("fail to read charge now from kernel");
 127                 ss_lowbat_set_charge_on(0);
 128                 return 0;
 129         }
 130
 131         if (val == 1) {
 132                 ss_lowbat_set_charge_on(1);
 133                 return 1;
 134         } else {
 135                 ss_lowbat_set_charge_on(0);
 136                 return 0;
 137         }
 138 }
 139
 140 static int lowbat_process(int bat_percent, void *ad)
 141 {
 142         int new_bat_capacity;
 143         int new_bat_state;
 144         int vconf_state = -1;
 145         int bat_full = -1;
 146         int i, ret = 0;
 147         int val = 0;
 148         new_bat_capacity = bat_percent;
 149         if (new_bat_capacity < 0)
 150                 return -1;
 151         if (new_bat_capacity != cur_bat_capacity) {
 152                 PRT_TRACE("[BAT_MON] cur = %d new = %d", cur_bat_capacity, new_bat_capacity);
 153                 if (vconf_set_int(VCONFKEY_SYSMAN_BATTERY_CAPACITY, new_bat_capacity) == 0)
 154                         cur_bat_capacity = new_bat_capacity;
 155         }
 156
 157         if (0 > vconf_get_int(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, &vconf_state)) {
 158                 PRT_TRACE_ERR("vconf_get_int() failed");
 159                 return -1;
 160         }
 161
 162         if (new_bat_capacity <= BATTERY_REAL_POWER_OFF) {
 163                 if (device_get_property(DEVICE_TYPE_POWER, PROP_POWER_CHARGE_NOW, &val) < 0) {
 164                         PRT_TRACE_ERR("fail to read charge now from kernel");
 165                 }
 166                 PRT_TRACE("charge_now status %d",val);
 167                 if (val == 1) {
 168                         new_bat_state = BATTERY_POWER_OFF;
 169                         if (vconf_state != VCONFKEY_SYSMAN_BAT_POWER_OFF)
 170                                 ret=vconf_set_int(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, VCONFKEY_SYSMAN_BAT_POWER_OFF);
 171                 } else {
 172                         new_bat_state = BATTERY_REAL_POWER_OFF;
 173                         if (vconf_state != VCONFKEY_SYSMAN_BAT_REAL_POWER_OFF)
 174                                 ret=vconf_set_int(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, VCONFKEY_SYSMAN_BAT_REAL_POWER_OFF);
 175                 }
 176         } else if (new_bat_capacity <= BATTERY_POWER_OFF) {
 177                 new_bat_state = BATTERY_POWER_OFF;
 178                 if (vconf_state != VCONFKEY_SYSMAN_BAT_POWER_OFF)
 179                         ret=vconf_set_int(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, VCONFKEY_SYSMAN_BAT_POWER_OFF);
 180         } else if (new_bat_capacity <= BATTERY_CRITICAL_LOW) {
 181                 new_bat_state = BATTERY_CRITICAL_LOW;
 182                 if (vconf_state != VCONFKEY_SYSMAN_BAT_CRITICAL_LOW)
 183                         ret=vconf_set_int(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, VCONFKEY_SYSMAN_BAT_CRITICAL_LOW);
 184         } else if (new_bat_capacity <= BATTERY_WARNING_LOW) {
 185                 new_bat_state = BATTERY_WARNING_LOW;
 186                 if (vconf_state != VCONFKEY_SYSMAN_BAT_WARNING_LOW)
 187                         ret=vconf_set_int(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, VCONFKEY_SYSMAN_BAT_WARNING_LOW);
 188         } else {
 189                 new_bat_state = BATTERY_NORMAL;
 190                 if (new_bat_capacity == BATTERY_FULL) {
 191                         if (device_get_property(DEVICE_TYPE_POWER, PROP_POWER_CHARGE_FULL, &bat_full) < 0) {
 192                                 PRT_TRACE_ERR("fail to read charge full from kernel");
 193                         }
 194                         if (bat_full == 1) {
 195                                 if (vconf_state != VCONFKEY_SYSMAN_BAT_FULL)
 196                                 ret=vconf_set_int(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, VCONFKEY_SYSMAN_BAT_FULL);
 197                         } else {
 198                                 if (vconf_state != VCONFKEY_SYSMAN_BAT_NORMAL)
 199                                         ret=vconf_set_int(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, VCONFKEY_SYSMAN_BAT_NORMAL);
 200                         }
 201                 } else {
 202                         if (vconf_state != VCONFKEY_SYSMAN_BAT_NORMAL)
 203                                 ret=vconf_set_int(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, VCONFKEY_SYSMAN_BAT_NORMAL);
 204                 }
 205         }
 206
 207         if(ret < 0)
 208                 return -1;
 209
 210         ss_lowbat_is_charge_in_now();
 211
 212         if (cur_bat_state == new_bat_state) {
 213                 return 0;
 214         }
 215
 216         if (cur_bat_state == BATTERY_UNKNOWN) {
 217                 for (i = 0;
 218                      i < sizeof(lpe) / sizeof(struct lowbat_process_entry);
 219                      i++) {
 220                         if (new_bat_state == lpe[i].new_bat_state) {
 221                                 lpe[i].action(ad);
 222                                 cur_bat_state = new_bat_state;
 223                                 return 0;
 224                         }
 225                 }
 226         } else {
 227                 for (i = 0;
 228                      i < sizeof(lpe) / sizeof(struct lowbat_process_entry);
 229                      i++) {
 230                         if ((cur_bat_state == lpe[i].cur_bat_state)
 231                             && (new_bat_state == lpe[i].new_bat_state)) {
 232                                 lpe[i].action(ad);
 233                                 cur_bat_state = new_bat_state;
 234                                 return 0;
 235                         }
 236                 }
 237         }
 238         PRT_TRACE("[BATMON] Unknown battery state cur:%d new:%d",cur_bat_state,new_bat_state);
 239         cur_bat_state = new_bat_state;
 240         return -1;
 241 }
 242
 243 static int lowbat_read()
 244 {
 245         int bat_percent;
 246
 247         if (device_get_property(DEVICE_TYPE_POWER, PROP_POWER_CAPACITY, &bat_percent) < 0) {
 248                 PRT_TRACE_ERR("fail to read power capacity from kernel");
 249                 return -1;
 250         }
 251
 252         return bat_percent;
 253 }
 254
 255 static void __ss_change_lowbat_level(int bat_percent)
 256 {
 257         int prev, now;
 258
 259         if (cur_bat_capacity == bat_percent)
 260                 return;
 261
 262         if (vconf_get_int(VCONFKEY_SYSMAN_BATTERY_LEVEL_STATUS, &prev) < 0) {
 263                 PRT_TRACE_ERR("vconf_get_int() failed");
 264                 return;
 265         }
 266
 267
 268         if (bat_percent > BATTERY_LEVEL_CHECK_FULL) {
 269                 now = VCONFKEY_SYSMAN_BAT_LEVEL_FULL;
 270         } else if (bat_percent > BATTERY_LEVEL_CHECK_HIGH) {
 271                 now = VCONFKEY_SYSMAN_BAT_LEVEL_HIGH;
 272         } else if (bat_percent > BATTERY_LEVEL_CHECK_LOW) {
 273                 now = VCONFKEY_SYSMAN_BAT_LEVEL_LOW;
 274         } else if (bat_percent > BATTERY_LEVEL_CHECK_CRITICAL) {
 275                 now = VCONFKEY_SYSMAN_BAT_LEVEL_CRITICAL;
 276         } else {
 277                 now = VCONFKEY_SYSMAN_BAT_LEVEL_EMPTY;
 278         }
 279
 280         if (prev != now)
 281                 vconf_set_int(VCONFKEY_SYSMAN_BATTERY_LEVEL_STATUS, now);
 282 }
 283
 284 static int __check_lowbat_percent(void)
 285 {
 286         int bat_percent;
 287
 288         bat_percent = lowbat_read();
 289         if (bat_percent < 0) {
 290                 ecore_timer_interval_set(lowbat_timer, BAT_MON_INTERVAL_MIN);
 291                 bat_err_count++;
 292                 if (bat_err_count > MAX_BATTERY_ERROR) {
 293                         PRT_TRACE_ERR
 294                             ("[BATMON] Cannot read battery gage. stop read fuel gage");
 295                 }
 296                 return -1;
 297         }
 298         if (bat_percent > 100)
 299                 bat_percent = 100;
 300         __ss_change_lowbat_level(bat_percent);
 301         return bat_percent;
 302 }
 303
 304 int ss_lowbat_monitor(void *data)
 305 {
 306         struct ss_main_data *ad = (struct ss_main_data *)data;
 307         int bat_percent;
 308
 309         bat_percent = __check_lowbat_percent();
 310
 311         if (lowbat_process(bat_percent, ad) < 0)
 312                 ecore_timer_interval_set(lowbat_timer, BAT_MON_INTERVAL_MIN);
 313         else
 314                 ecore_timer_interval_set(lowbat_timer, BAT_MON_INTERVAL);
 315
 316         return 1;
 317 }
 318
 319 static int wakeup_cb(keynode_t *key_nodes, void *data)
 320 {
 321         int pm_state = 0;
 322
 323         if ((pm_state =
 324              vconf_keynode_get_int(key_nodes)) == VCONFKEY_PM_STATE_LCDOFF)
 325                 ss_lowbat_monitor(NULL);
 326
 327         return 0;
 328 }
 329
 330 /* for debugging (request by kernel) */
 331 static int check_battery()
 332 {
 333         int r;
 334         int ret = -1;
 335
 336         if (device_get_property(DEVICE_TYPE_POWER, PROP_POWER_PRESENT, &ret) < 0) {
 337                 PRT_TRACE_ERR("[BATMON] battery check : %d", ret);
 338         }
 339         PRT_TRACE("[BATMON] battery check : %d", ret);
 340
 341         return ret;
 342 }
 343
 344 int ss_lowbat_init(struct ss_main_data *ad)
 345 {
 346         int i;
 347
 348         /* need check battery */
 349         lowbat_timer =
 350             ecore_timer_add(BAT_MON_INTERVAL_MIN, ss_lowbat_monitor, ad);
 351
 352         __check_lowbat_percent();
 353
 354         ss_lowbat_is_charge_in_now();
 355
 356         vconf_notify_key_changed(VCONFKEY_PM_STATE, (void *)wakeup_cb, NULL);
 357
 358         return 0;
 359 }