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/*
* Copyright © 2009 Keith Packard <keithp@keithp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "aoview.h"
static struct aoview_serial *monitor_serial;
#define MONITOR_LEN 1024
static char monitor_line[MONITOR_LEN + 1];
static int monitor_pos;
void
aoview_monitor_disconnect(void)
{
if (monitor_serial) {
aoview_serial_close(monitor_serial);
monitor_serial = NULL;
}
aoview_table_clear();
aoview_log_new();
}
static void
aoview_parse_string(char *target, int len, char *source)
{
strncpy(target, source, len-1);
target[len-1] = '\0';
}
static void
aoview_parse_int(int *target, char *source)
{
*target = strtol(source, NULL, 0);
}
static void
aoview_parse_pos(double *target, char *source)
{
int deg;
double min;
char dir;
double r;
if (sscanf(source, "%d°%lf'%c", °, &min, &dir) != 3) {
*target = 0;
return;
}
r = deg + min / 60.0;
if (dir == 'S' || dir == 'W')
r = -r;
*target = r;
}
static void
aoview_monitor_parse(char *line)
{
char *saveptr;
char *words[64];
int nword;
struct aostate state;
if (aoview_log_get_serial())
aoview_log_printf ("%s\n", line);
for (nword = 0; nword < 64; nword++) {
words[nword] = strtok_r(line, " \t\n", &saveptr);
line = NULL;
if (words[nword] == NULL)
break;
}
if (nword < 26)
return;
if (strcmp(words[0], "CALL") != 0)
return;
aoview_parse_string(state.callsign, sizeof (state.callsign), words[1]);
aoview_parse_int(&state.serial, words[3]);
if (!aoview_log_get_serial())
aoview_log_set_serial(state.serial);
aoview_parse_int(&state.rssi, words[5]);
aoview_parse_string(state.state, sizeof (state.state), words[9]);
aoview_parse_int(&state.tick, words[10]);
aoview_parse_int(&state.accel, words[12]);
aoview_parse_int(&state.pres, words[14]);
aoview_parse_int(&state.temp, words[16]);
aoview_parse_int(&state.batt, words[18]);
aoview_parse_int(&state.drogue, words[20]);
aoview_parse_int(&state.main, words[22]);
aoview_parse_int(&state.nsat, words[24]);
if (strcmp (words[26], "unlocked") != 0 && nword >= 29) {
state.locked = 1;
sscanf(words[26], "%d:%d:%d", &state.gps_time.hour, &state.gps_time.minute, &state.gps_time.second);
aoview_parse_pos(&state.lat, words[27]);
aoview_parse_pos(&state.lon, words[28]);
sscanf(words[29], "%dm", &state.alt);
} else {
state.locked = 0;
state.gps_time.hour = state.gps_time.minute = state.gps_time.second = 0;
state.lat = state.lon = 0;
state.alt = 0;
}
aoview_state_notify(&state);
}
static void
aoview_monitor_callback(gpointer user_data,
struct aoview_serial *serial,
gint revents)
{
int c;
if (revents & (G_IO_HUP|G_IO_ERR)) {
aoview_monitor_disconnect();
return;
}
if (revents & G_IO_IN) {
for (;;) {
c = aoview_serial_getc(serial);
if (c == -1)
break;
if (c == '\r')
continue;
if (c == '\n') {
monitor_line[monitor_pos] = '\0';
if (monitor_pos)
aoview_monitor_parse(monitor_line);
monitor_pos = 0;
} else if (monitor_pos < MONITOR_LEN)
monitor_line[monitor_pos++] = c;
}
}
}
gboolean
aoview_monitor_connect(char *tty)
{
aoview_monitor_disconnect();
monitor_serial = aoview_serial_open(tty);
if (!monitor_serial)
return FALSE;
aoview_serial_set_callback(monitor_serial,
aoview_monitor_callback,
monitor_serial,
NULL);
return TRUE;
}
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