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   1 /*
   2  * Copyright © 2009 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 #include "ao.h"
  19 #include "ao_log.h"
  20
  21 void
  22 ao_gps_report_metrum(void)
  23 {
  24         static __xdata struct ao_log_metrum             gps_log;
  25         static __xdata struct ao_telemetry_location     gps_data;
  26         static __xdata struct ao_telemetry_satellite    gps_tracking_data;
  27         uint8_t c, n, i;
  28         uint8_t svid;
  29         uint8_t new;
  30
  31         for (;;) {
  32                 while (!(new = ao_gps_new))
  33                         ao_sleep(&ao_gps_new);
  34                 ao_mutex_get(&ao_gps_mutex);
  35                 if (new & AO_GPS_NEW_DATA)
  36                         ao_xmemcpy(&gps_data, &ao_gps_data, sizeof (ao_gps_data));
  37                 if (new & AO_GPS_NEW_TRACKING)
  38                         ao_xmemcpy(&gps_tracking_data, &ao_gps_tracking_data, sizeof (ao_gps_tracking_data));
  39                 ao_gps_new = 0;
  40                 ao_mutex_put(&ao_gps_mutex);
  41
  42                 if ((new & AO_GPS_NEW_DATA) && (gps_data.flags & AO_GPS_VALID)) {
  43                         gps_log.tick = ao_gps_tick;
  44                         gps_log.type = AO_LOG_GPS_POS;
  45                         gps_log.u.gps.latitude = gps_data.latitude;
  46                         gps_log.u.gps.longitude = gps_data.longitude;
  47                         gps_log.u.gps.altitude_low = gps_data.altitude_low;
  48                         gps_log.u.gps.altitude_high = gps_data.altitude_high;
  49                         ao_log_metrum(&gps_log);
  50
  51                         gps_log.type = AO_LOG_GPS_TIME;
  52                         gps_log.u.gps_time.hour = gps_data.hour;
  53                         gps_log.u.gps_time.minute = gps_data.minute;
  54                         gps_log.u.gps_time.second = gps_data.second;
  55                         gps_log.u.gps_time.flags = gps_data.flags;
  56                         gps_log.u.gps_time.year = gps_data.year;
  57                         gps_log.u.gps_time.month = gps_data.month;
  58                         gps_log.u.gps_time.day = gps_data.day;
  59                         gps_log.u.gps_time.pdop = gps_data.pdop;
  60                         ao_log_metrum(&gps_log);
  61                 }
  62
  63                 if ((new & AO_GPS_NEW_TRACKING) && (n = gps_tracking_data.channels)) {
  64                         gps_log.type = AO_LOG_GPS_SAT;
  65                         gps_log.tick = ao_gps_tick;
  66                         i = 0;
  67                         for (c = 0; c < n; c++) {
  68                                 svid = gps_tracking_data.sats[c].svid;
  69                                 if (svid != 0) {
  70                                         if (i == 4) {
  71                                                 gps_log.u.gps_sat.channels = i;
  72                                                 gps_log.u.gps_sat.more = 1;
  73                                                 ao_log_metrum(&gps_log);
  74                                                 i = 0;
  75                                         }
  76                                         gps_log.u.gps_sat.sats[i].svid = svid;
  77                                         gps_log.u.gps_sat.sats[i].c_n = gps_tracking_data.sats[c].c_n_1;
  78                                         i++;
  79                                 }
  80                         }
  81                         if (i) {
  82                                 gps_log.u.gps_sat.channels = i;
  83                                 gps_log.u.gps_sat.more = 0;
  84                                 ao_log_metrum(&gps_log);
  85                         }
  86                 }
  87         }
  88 }
  89
  90 __xdata struct ao_task ao_gps_report_metrum_task;
  91
  92 void
  93 ao_gps_report_metrum_init(void)
  94 {
  95         ao_add_task(&ao_gps_report_metrum_task,
  96                     ao_gps_report_metrum,
  97                     "gps_report");
  98 }