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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; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18
  19 #include "aoview.h"
  20
  21 static struct aoview_serial *monitor_serial;
  22
  23 #define MONITOR_LEN     1024
  24
  25 static char     monitor_line[MONITOR_LEN + 1];
  26 static int      monitor_pos;
  27
  28 void
  29 aoview_monitor_disconnect(void)
  30 {
  31         if (monitor_serial) {
  32                 aoview_serial_close(monitor_serial);
  33                 monitor_serial = NULL;
  34         }
  35         aoview_log_new();
  36 }
  37
  38 gboolean
  39 aoview_monitor_parse(const char *input_line)
  40 {
  41         struct cc_telem telem;
  42
  43         if (!cc_telem_parse(input_line, &telem))
  44                 return FALSE;
  45         aoview_state_notify(&telem);
  46         return TRUE;
  47 }
  48
  49 static void
  50 aoview_monitor_callback(gpointer user_data,
  51                         struct aoview_serial *serial,
  52                         gint revents)
  53 {
  54         int     c;
  55
  56         if (revents & (G_IO_HUP|G_IO_ERR)) {
  57                 aoview_monitor_disconnect();
  58                 return;
  59         }
  60         if (revents & G_IO_IN) {
  61                 for (;;) {
  62                         c = aoview_serial_getc(serial);
  63                         if (c == -1)
  64                                 break;
  65                         if (c == '\r')
  66                                 continue;
  67                         if (c == '\n') {
  68                                 monitor_line[monitor_pos] = '\0';
  69                                 if (monitor_pos) {
  70                                         if (aoview_monitor_parse(monitor_line)) {
  71                                                 aoview_log_set_serial(aostate.data.serial);
  72                                                 aoview_log_set_flight(aostate.data.flight);
  73                                                 if (aoview_log_get_serial())
  74                                                         aoview_log_printf ("%s\n", monitor_line);
  75                                         }
  76                                 }
  77                                 monitor_pos = 0;
  78                         } else if (monitor_pos < MONITOR_LEN)
  79                                 monitor_line[monitor_pos++] = c;
  80                 }
  81         }
  82 }
  83
  84 void
  85 aoview_monitor_set_channel(int channel)
  86 {
  87         if (monitor_serial) {
  88                 aoview_serial_printf(monitor_serial, "m 0\n");
  89                 aoview_serial_printf(monitor_serial, "c r %d\n", channel);
  90                 aoview_serial_printf(monitor_serial, "m 1\n");
  91         }
  92 }
  93
  94 gboolean
  95 aoview_monitor_connect(char *tty)
  96 {
  97         int     channel;
  98         aoview_monitor_disconnect();
  99         monitor_serial = aoview_serial_open(tty);
 100         if (!monitor_serial)
 101                 return FALSE;
 102         aoview_table_clear();
 103         aoview_state_reset();
 104         channel = aoview_channel_current();
 105         aoview_monitor_set_channel(channel);
 106         aoview_serial_set_callback(monitor_serial,
 107                                    aoview_monitor_callback);
 108         return TRUE;
 109 }