1 /*
2 * monitor_tnt.c - gpsmon support for True North Revolution devices.
3 *
4 * This file is Copyright (c) 2010-2018 by the GPSD project
5 * SPDX-License-Identifier: BSD-2-clause
6 */
7
8 #include "gpsd_config.h" /* must be before all includes */
9
10 #include <assert.h>
11
12 #include "gpsd.h"
13 #include "gpsmon.h"
14
15 #ifdef TNT_ENABLE
16 extern const struct gps_type_t driver_trueNorth;
17
18 static WINDOW *thtmwin;
19
tnt_initialize(void)20 static bool tnt_initialize(void)
21 {
22 thtmwin = derwin(devicewin, 6, 80, 0, 0);
23 assert(thtmwin != NULL);
24 (void)wborder(thtmwin, 0, 0, 0, 0, 0, 0, 0, 0),
25 (void)syncok(thtmwin, true);
26 (void)wattrset(thtmwin, A_BOLD);
27 (void)mvwaddstr(thtmwin, 0, 35, " PTNTHTM ");
28 (void)mvwaddstr(thtmwin, 1, 1, "Heading: ");
29 (void)mvwaddstr(thtmwin, 2, 1, "Pitch: ");
30 (void)mvwaddstr(thtmwin, 3, 1, "Roll: ");
31 (void)mvwaddstr(thtmwin, 4, 1, "Dip: ");
32
33 (void)mvwaddstr(thtmwin, 1, 40, "Magnetometer Status: ");
34 (void)mvwaddstr(thtmwin, 2, 40, "Pitch Status: ");
35 (void)mvwaddstr(thtmwin, 3, 40, "Roll Status ");
36 (void)mvwaddstr(thtmwin, 4, 40, "Horizontal Field: ");
37 (void)wattrset(thtmwin, A_NORMAL);
38 return true;
39 }
40
tnt_update(void)41 static void tnt_update(void)
42 {
43 /*
44 * We have to do our own field parsing because the way this
45 * gets called, nmea_parse() is never called on the sentence.
46 */
47 (void)nmea_parse((char *)session.lexer.outbuffer, &session);
48
49 (void)mvwaddstr(thtmwin, 1, 19, session.nmea.field[1]);
50 (void)mvwaddstr(thtmwin, 2, 19, session.nmea.field[3]);
51 (void)mvwaddstr(thtmwin, 3, 19, session.nmea.field[5]);
52 (void)mvwaddstr(thtmwin, 4, 19, session.nmea.field[7]);
53
54 (void)mvwaddstr(thtmwin, 1, 61, session.nmea.field[2]);
55 (void)mvwaddstr(thtmwin, 2, 61, session.nmea.field[4]);
56 (void)mvwaddstr(thtmwin, 3, 61, session.nmea.field[6]);
57 (void)mvwaddstr(thtmwin, 4, 61, session.nmea.field[8]);
58 }
59
tnt_command(char line[]UNUSED)60 static int tnt_command(char line[] UNUSED)
61 {
62 /*
63 * Interpret a command line. Whatever characters the user types will
64 * be echoed in the command buffer at the top right of the display. When
65 * he/she presses enter the command line will be passed to this function
66 * for interpretation. Note: packet receipt is suspended while this
67 * function is executing.
68 *
69 * This method is optional. If you set the command method pointer to
70 * NULL, gpsmon will behave sanely, accepting no device-specific commands.
71 *
72 * It is a useful convention to use uppercase letters for
73 * driver-specific commands and leave lowercase ones for the
74 * generic gpsmon ones.
75 */
76
77 /*
78 * Return COMMAND_UNKNOWN to tell gpsmon you can't interpret the line, and
79 * it will be passed to the generic command interpreter to be handled there.
80 * You can alse return COMMAND_MATCH to tell it you handled the command,
81 * or COMMAND_TERMINATE to tell gpsmon you handled it and gpsmon should
82 * terminate.
83 */
84 return COMMAND_UNKNOWN;
85 }
86
tnt_wrap(void)87 static void tnt_wrap(void)
88 {
89 (void)delwin(thtmwin);
90 }
91
92 /*
93 * Use mmt = monitor method table as a suffix for naming these things
94 * Yours will need to be added to the monitor_objects table in gpsmon.c,
95 * then of course you need to link your module into gpsmon.
96 */
97 const struct monitor_object_t tnt_mmt = {
98 .initialize = tnt_initialize,
99 .update = tnt_update,
100 .command = tnt_command,
101 .wrap = tnt_wrap,
102 .min_y = 6,.min_x = 80, /* size of the device window */
103 .driver = &driver_trueNorth,
104 };
105 #endif /* TNT_ENABLE */
106
107 /*
108 * Helpers:
109 *
110 * bool monitor_control_send(unsigned char *buf, size_t len)
111 * Ship a packet payload to the device. Calls the driver send_control()
112 * method to add headers/trailers/checksum; also dumps the sent
113 * packet to the packet window, if the send_control() is playing
114 * nice by using session.msgbuf to assemble the message.
115 *
116 * void monitor_log(const char *fmt, ...)
117 * Write a message to the packet window. Safe if the packet window
118 * is not on screen.
119 *
120 * void monitor_complain(const char *fmt, ...)
121 * Post an error message to the command window, wait till user presses a key.
122 * You get to make sure the message will fit.
123 *
124 * void monitor_fixframe(WINDOW *win)
125 * Fix the frame of win to the right of the current location by redrawing
126 * ACS_VLINE there. Useful after doing wclrtoeol() and writing on the
127 * line.
128 *
129 * The libgpsd session object is accessible as the global variable 'session'.
130 */
131