src/main/fc/stats.c

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "platform.h"
  22
  23 #ifdef USE_PERSISTENT_STATS
  24
  25 #include "drivers/time.h"
  26
  27 #include "config/config.h"
  28 #include "fc/dispatch.h"
  29 #include "fc/runtime_config.h"
  30 #include "fc/stats.h"
  31
  32 #include "io/beeper.h"
  33 #include "io/gps.h"
  34
  35 #include "pg/stats.h"
  36
  37
  38 #define STATS_SAVE_DELAY_US 500000 // Let disarming complete and save stats after this time
  39
  40 static timeMs_t arm_millis;
  41 static uint32_t arm_distance_cm;
  42
  43 static bool saveRequired = false;
  44
  45 #ifdef USE_GPS
  46     #define DISTANCE_FLOWN_CM (GPS_distanceFlownInCm)
  47 #else
  48     #define DISTANCE_FLOWN_CM (0)
  49 #endif
  50
  51 void statsInit(void)
  52 {
  53     dispatchEnable();
  54 }
  55
  56 void writeStats(struct dispatchEntry_s* self)
  57 {
  58     UNUSED(self);
  59
  60     if (!ARMING_FLAG(ARMED)) {
  61         // Don't save if the user made config changes that have not yet been saved.
  62         if (!isConfigDirty()) {
  63             writeEEPROM();
  64
  65             // Repeat disarming beep indicating the stats save is complete
  66             beeper(BEEPER_DISARMING);
  67         }
  68
  69         saveRequired = false;
  70     }
  71 }
  72
  73 dispatchEntry_t writeStatsEntry =
  74 {
  75     writeStats, 0, NULL, false
  76 };
  77
  78
  79 void statsOnArm(void)
  80 {
  81     arm_millis      = millis();
  82     arm_distance_cm = DISTANCE_FLOWN_CM;
  83 }
  84
  85 void statsOnDisarm(void)
  86 {
  87     int8_t minArmedTimeS = statsConfig()->stats_min_armed_time_s;
  88     if (minArmedTimeS >= 0) {
  89         uint32_t dtS = (millis() - arm_millis) / 1000;
  90         if (dtS >= (uint8_t)minArmedTimeS) {
  91             statsConfigMutable()->stats_total_flights += 1;    // arm / flight counter
  92             statsConfigMutable()->stats_total_time_s += dtS;
  93             statsConfigMutable()->stats_total_dist_m += (DISTANCE_FLOWN_CM - arm_distance_cm) / 100;
  94
  95             saveRequired = true;
  96         }
  97
  98         if (saveRequired) {
  99             /* signal that stats need to be saved but don't execute time consuming flash operation
 100                now - let the disarming process complete and then execute the actual save */
 101             dispatchAdd(&writeStatsEntry, STATS_SAVE_DELAY_US);
 102         }
 103     }
 104 }
 105 #endif