bt-service-adaptation/services/bt-service-battery-monitor.c

   1 /*
   2  * Bluetooth-frwk
   3  *
   4  * Copyright (c) 2015 - 2016 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact:  Sudipto Bal <sudipto.bal@samsung.com>
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *              http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  *
  20  */
  21
  22 #include <glib.h>
  23 #include <gio/gio.h>
  24 #include <string.h>
  25 #include <dlog.h>
  26 #include <time.h>
  27 #include <sys/time.h>
  28 #include <vconf.h>
  29
  30 #include <oal-event.h>
  31
  32 #include "bt-service-battery-monitor.h"
  33 #include "bt-service-common.h"
  34 #include "bt-service-event.h"
  35 #include "bt-service-core-adapter.h"
  36
  37 /* Avoid the build error related to vconf.h's dependency */
  38 #ifndef VCONFKEY_BATTERY_MONITOR_STATUS
  39 #define VCONFKEY_BATTERY_MONITOR_STATUS "db/bluetooth/bmstatus"
  40 #endif
  41
  42 static struct timeval scan_start;
  43 static struct timeval connect_start;
  44 static struct timeval app_scan_base;
  45 static int scan_cnt = 0;
  46 static int connect_cnt = 0;
  47 static gboolean is_session_started = FALSE;
  48
  49 static GSList *scan_app_list = NULL;
  50
  51 typedef struct {
  52         int type;
  53         void *data;
  54 } bt_service_oal_event_data_t;
  55
  56 _bt_battery_data_t *current_session_data = NULL;
  57
  58 static void __bt_bm_add_prev_time(uint32_t scan_time);
  59 static int __bt_start_session_time(void);
  60
  61 uint32_t static __bt_dm_time_diff_msec(struct timeval prev, struct timeval cur)
  62 {
  63     return (uint32_t)((cur.tv_sec - prev.tv_sec) * 1000.0f + (cur.tv_usec - prev.tv_usec) / 1000.0f);
  64 }
  65
  66 static void __bt_display_session_data()
  67 {
  68         BT_DBG("Displaying session data...");
  69
  70         if (current_session_data == NULL) {
  71                 BT_ERR("Session in progress but data structure is not initialized");
  72                 return;
  73         }
  74
  75         BT_DBG("session_start_time = %ld", current_session_data->session_start_time);
  76         BT_DBG("session_end_time = %ld", current_session_data->session_end_time);
  77         BT_DBG("session_scan_time = %d", current_session_data->session_scan_time);
  78         BT_DBG("session_connected_time = %d", current_session_data->session_connected_time);
  79 }
  80
  81 /*After reading data, the function resets it*/
  82 int _bt_bm_read_data(_bt_battery_data_t *data)
  83 {
  84         struct timeval cur_time;
  85         uint32_t tx_time = 0;
  86         uint32_t rx_time = 0;
  87         uint32_t idle_time = 0;
  88         uint32_t energy_used = 0;
  89         uint16_t scan_time_per_app = 0;
  90         int scan_app_cnt = 0;
  91
  92         BT_DBG("");
  93
  94         if (data == NULL) {
  95                 BT_ERR("Received NULL pointer in argument, returning...");
  96                 return BLUETOOTH_ERROR_NO_DATA;
  97         }
  98
  99         if (_bt_get_energy_info(&tx_time, &rx_time,
 100                                 &idle_time, &energy_used) != BLUETOOTH_ERROR_NONE) {
 101                 BT_ERR("Fail to get energy info");
 102                 return BLUETOOTH_ERROR_NOT_SUPPORT;
 103         }
 104
 105         if (is_session_started == FALSE) {
 106                 if (__bt_start_session_time() != BLUETOOTH_ERROR_NONE) {
 107                         BT_ERR("Fail to start session time");
 108                         return BLUETOOTH_ERROR_NOT_SUPPORT;
 109                 }
 110         }
 111
 112         if (current_session_data == NULL) {
 113                 BT_ERR("Session in progress but data structure is not initialized");
 114                 return BLUETOOTH_ERROR_INTERNAL;
 115         }
 116
 117         gettimeofday(&cur_time, 0);
 118
 119         data->tx_time = tx_time;
 120         data->rx_time = rx_time;
 121         data->idle_time = idle_time;
 122
 123         data->session_start_time = current_session_data->session_start_time;
 124         data->session_end_time = time(NULL);
 125         current_session_data->session_start_time = time(NULL);
 126         current_session_data->session_end_time = 0;
 127
 128         data->session_scan_time = current_session_data->session_scan_time;
 129         if (scan_cnt) {
 130                 data->session_scan_time += (uint16_t)__bt_dm_time_diff_msec(scan_start, cur_time);
 131                 gettimeofday(&scan_start, 0);
 132         }
 133         current_session_data->session_scan_time = 0;
 134
 135         data->session_connected_time = current_session_data->session_connected_time;
 136         if (connect_cnt) {
 137                 data->session_connected_time += (uint16_t)__bt_dm_time_diff_msec(connect_start, cur_time);
 138                 gettimeofday(&connect_start, 0);
 139         }
 140         current_session_data->session_connected_time = 0;
 141
 142         scan_app_cnt = g_slist_length(scan_app_list);
 143
 144         if (scan_app_cnt > 0) {
 145                 scan_time_per_app = (uint32_t)__bt_dm_time_diff_msec(app_scan_base, cur_time) / scan_app_cnt;
 146                 __bt_bm_add_prev_time(scan_time_per_app);
 147         }
 148
 149         gettimeofday(&app_scan_base, 0);
 150
 151         /* Note that this is a "shallow" copy. The pointers are copied but the actual data isn't. */
 152         data->atm_list = g_slist_copy(current_session_data->atm_list);
 153         current_session_data->atm_list = NULL;
 154
 155         BT_DBG("App-wise data transaction details");
 156         for (GSList *l = data->atm_list; l != NULL; l = g_slist_next(l)) {
 157                 _bt_battery_app_data_t *t = (_bt_battery_app_data_t *)(l->data);
 158                 BT_DBG("%ld %ld %d %d %u", (long int)(t->uid), (long int)(t->pid), t->rx_bytes, t->tx_bytes, t->time);
 159         }
 160
 161         return BLUETOOTH_ERROR_NONE;
 162 }
 163
 164 static GSList* is_app_present(GSList *start, uid_t uid, pid_t pid)
 165 {
 166         GSList *l = NULL;
 167         _bt_battery_app_data_t *t;
 168         BT_INFO("Checking Memory location %p", start);
 169         for (l=start; l != NULL; l = g_slist_next(l)) {
 170                 t = (_bt_battery_app_data_t *)(l->data);
 171                 if (t->uid == uid && t->pid == pid) {
 172                         BT_INFO("App details already exist");
 173                         return l;
 174                 }
 175         }
 176         return NULL;
 177 }
 178
 179 void _bt_bm_add_transaction_details(uid_t uid, pid_t pid, int value, data_transaction_type_e type)
 180 {
 181         if (is_session_started == FALSE)
 182                 __bt_start_session_time();
 183
 184         if (current_session_data == NULL) {
 185                 BT_ERR("Session in progress but data structure is not initialized");
 186                 return;
 187         }
 188         GSList *t = is_app_present(current_session_data->atm_list, uid, pid);
 189         _bt_battery_app_data_t *app_data = NULL;
 190
 191         if (t == NULL) {
 192                 BT_INFO("Match not found, adding new node...");
 193                 app_data = g_malloc0(sizeof(_bt_battery_app_data_t));
 194                 app_data->uid = uid;
 195                 app_data->pid = pid;
 196                 if (type == RX_DATA)
 197                         app_data->rx_bytes = value;
 198                 else if (type == TX_DATA)
 199                         app_data->tx_bytes = value;
 200                 else
 201                         app_data->time = value;
 202                 current_session_data->atm_list = g_slist_append(current_session_data->atm_list, app_data);
 203         }
 204         else {
 205                 BT_INFO("Match found, updating existing node...");
 206                 app_data = (_bt_battery_app_data_t *)(t->data);
 207                 if (type == RX_DATA)
 208                         app_data->rx_bytes += value;
 209                 else if (type == TX_DATA)
 210                         app_data->tx_bytes += value;
 211                 else
 212                         app_data->time += value;
 213         }
 214 }
 215
 216 static int __bt_start_session_time(void)
 217 {
 218         int state = 0;
 219
 220         if (is_session_started == TRUE) {
 221                 BT_ERR("Session is already started");
 222                 return BLUETOOTH_ERROR_ALREADY_INITIALIZED;
 223         }
 224
 225         if (vconf_get_bool(VCONFKEY_BATTERY_MONITOR_STATUS, &state) != 0) {
 226                 BT_ERR("vconf_get_bool failed");
 227                 return BLUETOOTH_ERROR_INTERNAL;
 228         }
 229
 230         if (state == 0) {
 231                 BT_ERR("Battery is not monitoring in now");
 232                 return BLUETOOTH_ERROR_NOT_SUPPORT;
 233         }
 234
 235         BT_DBG("Bt session starting...");
 236         is_session_started = TRUE;
 237
 238         if (current_session_data == NULL)
 239                 current_session_data = g_malloc0(sizeof(_bt_battery_data_t));
 240
 241         current_session_data->session_start_time = time(NULL);
 242         current_session_data->session_end_time = 0;
 243         current_session_data->session_connected_time = 0;
 244         current_session_data->session_scan_time = 0;
 245         current_session_data->atm_list = NULL;
 246
 247         return BLUETOOTH_ERROR_NONE;
 248 }
 249
 250 void _bt_stop_session_time(void)
 251 {
 252         if (is_session_started == FALSE) {
 253                 BT_DBG("BT session not in progress... Returning");
 254                 return;
 255         }
 256
 257         BT_DBG("Bt session ending...");
 258         is_session_started = FALSE;
 259
 260         if (current_session_data == NULL) {
 261                 BT_ERR("Session in progress but data structure is not initialized");
 262                 return;
 263         }
 264
 265         current_session_data->session_end_time = time(NULL);
 266         __bt_display_session_data();
 267 }
 268
 269 /* 1 app can operate the regacy and ble scan at the same time */
 270 static GSList* __is_scan_app_present(GSList *start, bt_bm_scan_type_e type, uid_t uid, pid_t pid)
 271 {
 272         GSList *l = NULL;
 273         bt_bm_scan_info_t *t;
 274
 275         for (l = start; l != NULL; l = g_slist_next(l)) {
 276                 t = (bt_bm_scan_info_t *)(l->data);
 277
 278                 /* Find the regacy scan app for Inquiry stop */
 279                 if (type == SCAN_REGACY && t->type != SCAN_LE) {
 280                         BT_INFO("app already exist");
 281                         return l;
 282                 }
 283
 284                 if (t->uid == uid && t->pid == pid) {
 285                         BT_INFO("app already exist");
 286                         return l;
 287                 }
 288         }
 289         return NULL;
 290 }
 291
 292 static void __bt_bm_add_prev_time(uint32_t scan_time)
 293 {
 294         GSList *l = NULL;
 295         bt_bm_scan_info_t *t;
 296
 297         for (l = scan_app_list; l != NULL; l = g_slist_next(l)) {
 298                 t = (bt_bm_scan_info_t *)(l->data);
 299                 _bt_bm_add_transaction_details(t->uid, t->pid, scan_time, TIME_DATA);
 300         }
 301 }
 302
 303 /* 1 regacy scan is only allowed in the platform
 304  * BLE scan is allowed for many apps
 305 */
 306 /* When a app is added, we should add and reset the time. */
 307 void _bt_bm_add_scan_app(bt_bm_scan_type_e type, uid_t uid, pid_t pid)
 308 {
 309         bt_bm_scan_info_t *scan_info = NULL;
 310         GSList *app_list = NULL;
 311         int app_cnt = 0;
 312         uint32_t scan_time_per_app = 0;
 313
 314         BT_DBG("Scan type: %d", type);
 315
 316         if (scan_app_list) {
 317                 app_cnt = g_slist_length(scan_app_list);
 318                 app_list = __is_scan_app_present(scan_app_list, SCAN_BOTH, uid, pid);
 319         }
 320
 321         if (app_list) {
 322                 /* app try to scan both Regacy and LE */
 323                 scan_info = (bt_bm_scan_info_t *)(app_list->data);
 324
 325                 if (scan_info == NULL) {
 326                         BT_ERR("Can't get the scan info");
 327                         return;
 328                 }
 329
 330                 BT_DBG("Previous type: %d", scan_info->type);
 331
 332                 if (scan_info->type == type) {
 333                         BT_ERR("Same scan type is doing");
 334                         return;
 335                 }
 336
 337                 scan_info->type = SCAN_BOTH;
 338         } else {
 339                 scan_info = g_malloc0(sizeof(bt_bm_scan_info_t));
 340                 scan_info->uid = uid;
 341                 scan_info->pid = pid;
 342                 scan_info->type = type;
 343
 344                 if (app_cnt > 0) {
 345                         struct timeval cur_time;
 346
 347                         gettimeofday(&cur_time, 0);
 348
 349                         scan_time_per_app = (uint32_t)(__bt_dm_time_diff_msec(app_scan_base, cur_time)) / app_cnt;
 350                         __bt_bm_add_prev_time(scan_time_per_app);
 351
 352                         /* Update the base time */
 353                         gettimeofday(&app_scan_base, 0);
 354                 }
 355
 356                 scan_app_list = g_slist_append(scan_app_list, scan_info);
 357         }
 358 }
 359
 360 /* When a app is removed, we should add and reset the time. */
 361 void _bt_bm_remove_scan_app(bt_bm_scan_type_e type, uid_t uid, pid_t pid)
 362 {
 363         bt_bm_scan_info_t *scan_info = NULL;
 364         GSList *app_list = NULL;
 365         int app_cnt = 0;
 366         uint32_t scan_time_per_app = 0;
 367
 368         BT_DBG("Scan type: %d", type);
 369
 370         if (scan_app_list == NULL) {
 371                 BT_ERR("No scan app in list");
 372                 return;
 373         }
 374
 375         app_cnt = g_slist_length(scan_app_list);
 376
 377         if (app_cnt == 0) {
 378                 BT_ERR("No scan app in list");
 379                 return;
 380         }
 381
 382         app_list = __is_scan_app_present(scan_app_list, type, uid, pid);
 383
 384         if (app_list) {
 385                 struct timeval cur_time;
 386
 387                 scan_info = (bt_bm_scan_info_t *)(app_list->data);
 388
 389                 if (scan_info->type == SCAN_BOTH) {
 390                         scan_info->type = (scan_info->type == SCAN_REGACY) ? SCAN_LE : SCAN_REGACY;
 391                         return;
 392                 }
 393
 394                 gettimeofday(&cur_time, 0);
 395
 396                 scan_time_per_app = (uint32_t)(__bt_dm_time_diff_msec(app_scan_base, cur_time)) / app_cnt;
 397                 __bt_bm_add_prev_time(scan_time_per_app);
 398
 399                 /* Update the base time */
 400                 gettimeofday(&app_scan_base, 0);
 401
 402                 scan_app_list = g_slist_remove(scan_app_list, scan_info);
 403
 404                 g_free(scan_info);
 405         }
 406 }
 407
 408 void _bt_start_scan_time()
 409 {
 410         if (is_session_started == FALSE) {
 411                 if (__bt_start_session_time() != BLUETOOTH_ERROR_NONE) {
 412                         BT_ERR("Fail to start session time");
 413                         return;
 414                 }
 415         }
 416
 417         if (current_session_data != NULL) {
 418                 if (scan_cnt == 0) {
 419                         BT_DBG("Starting scan time");
 420                         gettimeofday(&scan_start, 0);
 421                         gettimeofday(&app_scan_base, 0);
 422                 }
 423                 scan_cnt++;
 424         } else {
 425                 BT_ERR("Data structure uninitialized");
 426         }
 427 }
 428
 429 void _bt_stop_scan_time()
 430 {
 431         if (is_session_started == FALSE) {
 432                 if (__bt_start_session_time() != BLUETOOTH_ERROR_NONE) {
 433                         BT_ERR("Fail to start session time");
 434                         return;
 435                 }
 436         }
 437
 438         if (scan_cnt == 0 || current_session_data == NULL)
 439                 BT_ERR("Error encountered, returning...");
 440         else {
 441                 scan_cnt--;
 442                 if(scan_cnt == 0) {
 443                         struct timeval cur_time;
 444
 445                         gettimeofday(&cur_time, 0);
 446                         current_session_data->session_scan_time += (uint16_t)(__bt_dm_time_diff_msec(scan_start, cur_time));
 447                         gettimeofday(&scan_start, 0);
 448                         gettimeofday(&app_scan_base, 0);
 449                 }
 450         }
 451 }
 452
 453 void _bt_start_connect_time()
 454 {
 455         if (is_session_started == FALSE) {
 456                 if (__bt_start_session_time() != BLUETOOTH_ERROR_NONE) {
 457                         BT_ERR("Fail to start session time");
 458                         return;
 459                 }
 460         }
 461
 462         if (current_session_data != NULL) {
 463                 if (connect_cnt == 0) {
 464                         BT_DBG("Starting connect time");
 465                         gettimeofday(&connect_start, 0);
 466                 }
 467                 connect_cnt++;
 468         }
 469         else {
 470                 BT_ERR("Data structure uninitialized");
 471         }
 472 }
 473
 474 void _bt_stop_connect_time()
 475 {
 476         if (is_session_started == FALSE) {
 477                 if (__bt_start_session_time() != BLUETOOTH_ERROR_NONE) {
 478                         BT_ERR("Fail to start session time");
 479                         return;
 480                 }
 481         }
 482
 483         if(connect_cnt == 0 || current_session_data == NULL) {
 484                 BT_ERR("Error encountered, returning...");
 485         } else {
 486                 connect_cnt--;
 487                 if(connect_cnt == 0) {
 488                         struct timeval cur_time;
 489
 490                         gettimeofday(&cur_time, 0);
 491                         current_session_data->session_connected_time += (uint16_t)(__bt_dm_time_diff_msec(connect_start, cur_time));
 492                 }
 493         }
 494 }
 495
 496 static void __bt_notify_battery_data(void)
 497 {
 498         BT_INFO("+");
 499         _bt_battery_data_t *data = NULL;
 500         int result;
 501
 502         data = g_new0(_bt_battery_data_t, 1);
 503         result = _bt_bm_read_data(data);
 504         GVariant *out_var = NULL, *param = NULL;
 505         GArray *info = NULL;
 506
 507         if (result != BLUETOOTH_ERROR_NONE) {
 508                 BT_ERR("Battery data not collected");
 509         }
 510         else {
 511                 bt_battery_dbus_data_t dbus_data;
 512                 memset(&dbus_data, 0, sizeof(bt_battery_dbus_data_t));
 513                 dbus_data.session_start_time = data->session_start_time;
 514                 dbus_data.session_end_time = data->session_end_time;
 515                 dbus_data.session_scan_time = data->session_scan_time;
 516                 dbus_data.session_connected_time = data->session_connected_time;
 517                 dbus_data.tx_time = data->tx_time;
 518                 dbus_data.rx_time = data->rx_time;
 519                 dbus_data.idle_time = data->idle_time;
 520
 521                 /*Populating app data*/
 522                 int n = 0;
 523                 for (GSList *l = data->atm_list; l != NULL; l = g_slist_next(l)) {
 524                         bt_battery_app_data *t = (bt_battery_app_data *)(l->data);
 525                         memcpy(&dbus_data.app_data[n], t, sizeof(bt_battery_app_data));
 526                         n++;
 527                 }
 528                 dbus_data.num_app = n;
 529
 530                 info = g_array_new(FALSE, FALSE, sizeof(gchar));
 531                 g_array_append_vals(info, &dbus_data, sizeof(bt_battery_dbus_data_t));
 532
 533                 out_var = g_variant_new_from_data((const GVariantType *)"ay",
 534                                 info->data, info->len,
 535                                 TRUE, NULL, NULL);
 536         }
 537         param = g_variant_new("(iv)", result, out_var);
 538         _bt_send_event(BT_ADAPTER_EVENT,
 539                 BLUETOOTH_EVENT_DISABLED_BATTERY_DATA,
 540                 param);
 541
 542         g_slist_free_full(data->atm_list, g_free);
 543         g_free(data);
 544         g_array_free(info, TRUE);
 545         BT_INFO("-");
 546 }
 547
 548 void _bt_bm_event_handler(gpointer data)
 549 {
 550         bt_service_oal_event_data_t *oal_event = data;
 551         int event_type = oal_event->type;
 552
 553         switch(event_type) {
 554         case OAL_EVENT_ADAPTER_ENABLED:
 555                 BT_DBG("Handling Adapter Enabled");
 556                 if (__bt_start_session_time() != BLUETOOTH_ERROR_NONE)
 557                         BT_ERR("Fail to start session time");
 558                 break;
 559         case OAL_EVENT_ADAPTER_DISABLED:
 560                 BT_DBG("Handling Adapter Disabled");
 561                 if (is_session_started == TRUE) {
 562                         _bt_stop_session_time();
 563                         __bt_notify_battery_data();
 564                 }
 565                 break;
 566         case OAL_EVENT_ADAPTER_INQUIRY_STARTED:
 567         case OAL_EVENT_BLE_DISCOVERY_STARTED:
 568                 BT_DBG("Handling Adapter Discovery Start");
 569                 _bt_start_scan_time();
 570                 break;
 571         case OAL_EVENT_ADAPTER_INQUIRY_FINISHED:
 572                 /* Remove the regacy scan app */
 573                 _bt_bm_remove_scan_app(SCAN_REGACY, 0, 0);
 574
 575                 _bt_stop_scan_time();
 576                 break;
 577         case OAL_EVENT_BLE_DISCOVERY_STOPPED:
 578                 BT_DBG("Handling Adapter Discovery Stop");
 579                 _bt_stop_scan_time();
 580                 break;
 581         case OAL_EVENT_SOCKET_OUTGOING_CONNECTED:
 582         case OAL_EVENT_GATTC_CONNECTION_COMPLETED:
 583                 BT_DBG("Handling Connection Start");
 584                 _bt_start_connect_time();
 585                 break;
 586         case OAL_EVENT_SOCKET_DISCONNECTED:
 587         case OAL_EVENT_GATTC_DISCONNECTION_COMPLETED:
 588                 BT_DBG("Handling Connection Stop");
 589                 _bt_stop_connect_time();
 590                 break;
 591         default:
 592                 BT_DBG("The event is not currently being handled");
 593         }
 594 }