/* This gets called once for each new sentence. */
static void update_lcd(struct gps_data_t *gpsdata)
{
char tmpbuf[255];
char *gridsquare;
/* Get our location in Maidenhead. */
gridsquare = maidenhead(gpsdata->fix.latitude,gpsdata->fix.longitude);
/* Fill in the latitude and longitude. */
if (gpsdata->fix.mode >= MODE_2D) {
int track;
char *s;
s = deg_to_str(deg_type, fabs(gpsdata->fix.latitude));
snprintf(tmpbuf, sizeof(tmpbuf) - 1, "widget_set gpsd one 1 1 {Lat: %s %c}\n", s, (gpsdata->fix.latitude < 0) ? 'S' : 'N');
send_lcd(tmpbuf);
s = deg_to_str(deg_type, fabs(gpsdata->fix.longitude));
snprintf(tmpbuf, sizeof(tmpbuf) - 1, "widget_set gpsd two 1 2 {Lon: %s %c}\n", s, (gpsdata->fix.longitude < 0) ? 'W' : 'E');
send_lcd(tmpbuf);
/* As a pilot, a heading of "0" gives me the heebie-jeebies (ie, 0
== "invalid heading data", 360 == "North"). */
track=(int)(gpsdata->fix.track);
if (track == 0) track = 360;
snprintf(tmpbuf, sizeof(tmpbuf) - 1, "widget_set gpsd three 1 3 {%.1f %s %d deg}\n",
gpsdata->fix.speed*speedfactor, speedunits,
track);
send_lcd(tmpbuf);
} else {
send_lcd("widget_set gpsd one 1 1 {Lat: n/a}\n");
send_lcd("widget_set gpsd two 1 2 {Lon: n/a}\n");
send_lcd("widget_set gpsd three 1 3 {n/a}\n");
}
/* Fill in the altitude and fix status. */
if (gpsdata->fix.mode == MODE_3D) {
int n;
for(n=0;n<CLIMB-2;n++) climb[n]=climb[n+1];
climb[CLIMB-1]=gpsdata->fix.climb;
avgclimb=0.0;
for(n=0;n<CLIMB;n++) avgclimb+=climb[n];
avgclimb/=CLIMB;
snprintf(tmpbuf, sizeof(tmpbuf) - 1, "widget_set gpsd four 1 4 {%d %s %s %d fpm }\n",
(int)(gpsdata->fix.altitude*altfactor), altunits, gridsquare, (int)(avgclimb * METERS_TO_FEET * 60));
} else {
snprintf(tmpbuf, sizeof(tmpbuf) - 1, "widget_set gpsd four 1 4 {n/a}\n");
}
send_lcd(tmpbuf);
}
/*@-mustfreefresh@*/
static void update_gps_panel(struct gps_data_t *gpsdata)
/* This gets called once for each new GPS sentence. */
{
int i;
int newstate;
char scr[128], *s;
/* This is for the satellite status display. Originally lifted from
* xgps.c. Note that the satellite list may be truncated based on
* available screen size, or may only show satellites used for the
* fix. */
if (gpsdata->satellites_visible != 0) {
if (display_sats >= MAX_POSSIBLE_SATS) {
for (i = 0; i < MAX_POSSIBLE_SATS; i++) {
if (i < gpsdata->satellites_visible) {
(void)snprintf(scr, sizeof(scr),
" %3d %02d %03d %02d %c",
gpsdata->skyview[i].PRN,
gpsdata->skyview[i].elevation,
gpsdata->skyview[i].azimuth,
(int)gpsdata->skyview[i].ss,
gpsdata->skyview[i].used ? 'Y' : 'N');
} else {
(void)strlcpy(scr, "", sizeof(scr));
}
(void)mvwprintw(satellites, i + 2, 1, "%-*s",
SATELLITES_WIDTH - 3, scr);
}
} else {
int n = 0;
for (i = 0; i < MAX_POSSIBLE_SATS; i++) {
if (n < display_sats) {
if ((i < gpsdata->satellites_visible)
&& (gpsdata->skyview[i].used
|| (gpsdata->satellites_visible <= display_sats))) {
(void)snprintf(scr, sizeof(scr),
" %3d %02d %03d %02d %c",
gpsdata->skyview[i].PRN,
gpsdata->skyview[i].elevation,
gpsdata->skyview[i].azimuth,
(int)gpsdata->skyview[i].ss,
gpsdata->skyview[i].used ? 'Y' : 'N');
(void)mvwprintw(satellites, n + 2, 1, "%-*s",
SATELLITES_WIDTH - 3, scr);
n++;
}
}
}
if (n < display_sats) {
for (i = n; i <= display_sats; i++) {
(void)mvwprintw(satellites, i + 2, 1, "%-*s",
SATELLITES_WIDTH - 3, "");
}
}
}
}
/* Print time/date. */
if (isnan(gpsdata->fix.time) == 0) {
(void)unix_to_iso8601(gpsdata->fix.time, scr, sizeof(scr));
} else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 1, DATAWIN_VALUE_OFFSET, "%-*s", 27, scr);
/* Fill in the latitude. */
if (gpsdata->fix.mode >= MODE_2D && isnan(gpsdata->fix.latitude) == 0) {
(void)snprintf(scr, sizeof(scr), "%s %c",
deg_to_str(deg_type, fabs(gpsdata->fix.latitude)),
(gpsdata->fix.latitude < 0) ? 'S' : 'N');
} else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 2, DATAWIN_VALUE_OFFSET, "%-*s", 27, scr);
/* Fill in the longitude. */
if (gpsdata->fix.mode >= MODE_2D && isnan(gpsdata->fix.longitude) == 0) {
(void)snprintf(scr, sizeof(scr), "%s %c",
deg_to_str(deg_type, fabs(gpsdata->fix.longitude)),
(gpsdata->fix.longitude < 0) ? 'W' : 'E');
} else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 3, DATAWIN_VALUE_OFFSET, "%-*s", 27, scr);
/* Fill in the altitude. */
if (gpsdata->fix.mode >= MODE_3D && isnan(gpsdata->fix.altitude) == 0)
(void)snprintf(scr, sizeof(scr), "%.1f %s",
gpsdata->fix.altitude * altfactor, altunits);
else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 4, DATAWIN_VALUE_OFFSET, "%-*s", 27, scr);
/* Fill in the speed. */
if (gpsdata->fix.mode >= MODE_2D && isnan(gpsdata->fix.track) == 0)
(void)snprintf(scr, sizeof(scr), "%.1f %s",
gpsdata->fix.speed * speedfactor, speedunits);
else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 5, DATAWIN_VALUE_OFFSET, "%-*s", 27, scr);
/* Fill in the heading. */
if (gpsdata->fix.mode >= MODE_2D && isnan(gpsdata->fix.track) == 0) {
double magheading = true2magnetic(gpsdata->fix.latitude,
gpsdata->fix.longitude,
gpsdata->fix.track);
if (!magnetic_flag || isnan(magheading) != 0) {
(void)snprintf(scr, sizeof(scr), "%.1f deg (true)",
gpsdata->fix.track);
} else {
(void)snprintf(scr, sizeof(scr), "%.1f deg (mag) ",
magheading);
}
} else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 6, DATAWIN_VALUE_OFFSET, "%-*s", 27, scr);
/* Fill in the rate of climb. */
if (gpsdata->fix.mode >= MODE_3D && isnan(gpsdata->fix.climb) == 0)
(void)snprintf(scr, sizeof(scr), "%.1f %s/min",
gpsdata->fix.climb * altfactor * 60, altunits);
else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 7, DATAWIN_VALUE_OFFSET, "%-*s", 27, scr);
/* Fill in the GPS status and the time since the last state
* change. */
if (gpsdata->online == 0) {
newstate = 0;
(void)snprintf(scr, sizeof(scr), "OFFLINE");
} else {
newstate = gpsdata->fix.mode;
switch (gpsdata->fix.mode) {
case MODE_2D:
(void)snprintf(scr, sizeof(scr), "2D %sFIX (%d secs)",
(gpsdata->status ==
STATUS_DGPS_FIX) ? "DIFF " : "",
(int)(time(NULL) - status_timer));
break;
case MODE_3D:
(void)snprintf(scr, sizeof(scr), "3D %sFIX (%d secs)",
(gpsdata->status ==
STATUS_DGPS_FIX) ? "DIFF " : "",
(int)(time(NULL) - status_timer));
break;
default:
(void)snprintf(scr, sizeof(scr), "NO FIX (%d secs)",
(int)(time(NULL) - status_timer));
break;
}
}
(void)mvwprintw(datawin, 8, DATAWIN_VALUE_OFFSET, "%-*s", 27, scr);
/* Note that the following fields are exceptions to the
* sizing rule. The minimum window size does not include these
* fields, if the window is too small, they get excluded. This
* may or may not change if/when the output for these fields is
* fixed and/or people request their permanence. They're only
* there in the first place because I arbitrarily thought they
* sounded interesting. ;^) */
if (window_length >= (MIN_GPS_DATAWIN_SIZE + 5)) {
/* Fill in the estimated horizontal position error. */
if (isnan(gpsdata->fix.epx) == 0)
(void)snprintf(scr, sizeof(scr), "+/- %d %s",
(int)(gpsdata->fix.epx * altfactor), altunits);
else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 9, DATAWIN_VALUE_OFFSET + 5, "%-*s", 22,
scr);
if (isnan(gpsdata->fix.epy) == 0)
(void)snprintf(scr, sizeof(scr), "+/- %d %s",
(int)(gpsdata->fix.epy * altfactor), altunits);
else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 10, DATAWIN_VALUE_OFFSET + 5, "%-*s", 22,
scr);
/* Fill in the estimated vertical position error. */
if (isnan(gpsdata->fix.epv) == 0)
(void)snprintf(scr, sizeof(scr), "+/- %d %s",
(int)(gpsdata->fix.epv * altfactor), altunits);
else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 11, DATAWIN_VALUE_OFFSET + 5, "%-*s", 22,
scr);
/* Fill in the estimated track error. */
if (isnan(gpsdata->fix.epd) == 0)
(void)snprintf(scr, sizeof(scr), "+/- %d deg",
(int)(gpsdata->fix.epd));
else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 12, DATAWIN_VALUE_OFFSET + 5, "%-*s", 22,
scr);
/* Fill in the estimated speed error. */
if (isnan(gpsdata->fix.eps) == 0)
(void)snprintf(scr, sizeof(scr), "+/- %d %s",
(int)(gpsdata->fix.eps * speedfactor), speedunits);
else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 13, DATAWIN_VALUE_OFFSET + 5, "%-*s", 22,
scr);
/* Fill in the time offset. */
if (isnan(gpsdata->fix.time) == 0)
(void)snprintf(scr, sizeof(scr), "%.3f",
(double)(timestamp()-gpsdata->fix.time));
else
(void)snprintf(scr, sizeof(scr), "n/a");
(void)mvwprintw(datawin, 14, DATAWIN_VALUE_OFFSET + 5, "%-*s", 22,
scr);
/* Fill in the grid square (esr thought *this* one was interesting). */
/*@-branchstate@*/
if (isnan(gpsdata->fix.longitude)==0 && isnan(gpsdata->fix.latitude)==0)
s = maidenhead(gpsdata->fix.latitude,gpsdata->fix.longitude);
else
s = "n/a";
(void)mvwprintw(datawin, 15, DATAWIN_VALUE_OFFSET + 5, "%-*s", 22, s);
/*@+branchstate@*/
}
/* Be quiet if the user requests silence. */
/*@-modobserver@*/
if (!silent_flag && raw_flag && (s = (char *)gps_data(gpsdata)) != NULL) {
char *p;
for (p = s + strlen(s); --p > s && isspace(*p); *p = '\0')
;
(void)wprintw(messages, "%s\n", s);
}
/*@+modobserver@*/
/* Reset the status_timer if the state has changed. */
if (newstate != state) {
status_timer = time(NULL);
state = newstate;
}
(void)wrefresh(datawin);
(void)wrefresh(satellites);
if (raw_flag) {
(void)wrefresh(messages);
}
}
