2 * Copyright © 2009 Keith Packard <keithp@keithp.com>
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.
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.
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.
20 #include <ao_flight.h>
21 #include <ao_sample.h>
23 #define BIT(i,x) ((x) ? (1 << (i)) : 0)
24 #define MORSE1(a) (1 | BIT(3,a))
25 #define MORSE2(a,b) (2 | BIT(3,a) | BIT(4,b))
26 #define MORSE3(a,b,c) (3 | BIT(3,a) | BIT(4,b) | BIT(5,c))
27 #define MORSE4(a,b,c,d) (4 | BIT(3,a) | BIT(4,b) | BIT(5,c) | BIT(6,d))
28 #define MORSE5(a,b,c,d,e) (5 | BIT(3,a) | BIT(4,b) | BIT(5,c) | BIT(6,d) | BIT(7,e))
30 static const uint8_t flight_reports[] = {
31 MORSE3(0,0,0), /* startup, 'S' */
32 MORSE2(0,0), /* idle 'I' */
33 MORSE4(0,1,1,0), /* pad 'P' */
34 MORSE4(1,0,0,0), /* boost 'B' */
35 MORSE4(0,0,1,0), /* fast 'F' */
36 MORSE4(1,0,1,0), /* coast 'C' */
37 MORSE3(1,0,0), /* drogue 'D' */
38 MORSE2(1,1), /* main 'M' */
39 MORSE4(0,1,0,0), /* landed 'L' */
40 MORSE4(1,0,0,1), /* invalid 'X' */
44 #define low(time) ao_beep_for(AO_BEEP_LOW, time)
45 #define mid(time) ao_beep_for(AO_BEEP_MID, time)
46 #define high(time) ao_beep_for(AO_BEEP_HIGH, time)
48 #define low(time) ao_led_for(AO_LED_GREEN, time)
49 #define mid(time) ao_led_for(AO_LED_RED, time)
50 #define high(time) ao_led_for(AO_LED_GREEN|AO_LED_RED, time)
52 #define pause(time) ao_delay(time)
54 static __pdata enum ao_flight_state ao_report_state;
59 * From: http://www.arrl.org/files/file/Technology/x9004008.pdf
61 * c: character rate in wpm
62 * s: overall rate in wpm
63 * u: unit rate (dit speed)
67 * intra-character-time: u
71 * Because our clock runs at 10ms, we'll round up to 70ms for u, which
74 * Farnsworth adds space between characters and
88 * Ta = total delay to add to the characters (31 units)
89 * of a standard 50-unit "word", in seconds
91 * Tc = period between characters, in seconds
93 * Tw = period between words, in seconds
95 * We'll use Farnsworth spacing with c=18 and s=12:
99 * Ta = (60 * 17 - 37.2 * 12) / (17 * 12) = 2.812
101 * Tc = 3 * Ta / 19 = .444
105 * Note that the values below are all reduced by 10ms; that's because
106 * the timer always adds a tick to make sure the task actually sleeps
107 * at least as long as the argument.
111 ao_report_beep(void) __reentrant
113 uint8_t r = flight_reports[ao_flight_state];
120 mid(AO_MS_TO_TICKS(200));
122 mid(AO_MS_TO_TICKS(60));
123 pause(AO_MS_TO_TICKS(60));
126 pause(AO_MS_TO_TICKS(360));
130 ao_report_digit(uint8_t digit) __reentrant
133 mid(AO_MS_TO_TICKS(500));
134 pause(AO_MS_TO_TICKS(200));
137 mid(AO_MS_TO_TICKS(200));
138 pause(AO_MS_TO_TICKS(200));
141 pause(AO_MS_TO_TICKS(300));
145 ao_report_number(int16_t n)
147 __xdata uint8_t digits[10];
148 __pdata uint8_t ndigits, i;
154 digits[ndigits++] = n % 10;
160 ao_report_digit(digits[--i]);
165 ao_report_altitude(void)
167 ao_report_number(ao_max_height);
170 #if HAS_BATTERY_REPORT
172 ao_report_battery(void)
174 __xdata struct ao_data packet;
176 ao_data_get(&packet);
177 if (packet.adc.v_batt != 0)
179 ao_sleep(DATA_TO_XDATA(&ao_sample_data));
181 ao_report_number(ao_battery_decivolt(packet.adc.v_batt));
185 #if HAS_IGNITE_REPORT
187 ao_report_igniter_ready(enum ao_igniter igniter)
189 return ao_igniter_status(igniter) == ao_igniter_ready ? 1 : 0;
193 ao_report_igniter(void)
195 return (ao_report_igniter_ready(ao_igniter_drogue) |
196 (ao_report_igniter_ready(ao_igniter_main) << 1));
200 ao_report_continuity(void) __reentrant
205 if (!ao_igniter_present)
208 c = ao_report_igniter();
211 high(AO_MS_TO_TICKS(25));
212 pause(AO_MS_TO_TICKS(100));
217 high(AO_MS_TO_TICKS(20));
218 low(AO_MS_TO_TICKS(20));
222 pause(AO_MS_TO_TICKS(250));
223 for(c = 0; c < AO_PYRO_NUM; c++) {
224 enum ao_igniter_status status = ao_pyro_status(c);
225 if (status == ao_igniter_ready)
226 mid(AO_MS_TO_TICKS(25));
228 low(AO_MS_TO_TICKS(25));
229 pause(AO_MS_TO_TICKS(200));
234 pause(AO_MS_TO_TICKS(100));
237 low(AO_MS_TO_TICKS(100));
238 mid(AO_MS_TO_TICKS(100));
239 high(AO_MS_TO_TICKS(100));
240 mid(AO_MS_TO_TICKS(100));
251 ao_report_state = ao_flight_state;
252 #if HAS_BATTERY_REPORT
253 if (ao_report_state == ao_flight_startup)
258 if (ao_report_state == ao_flight_landed) {
259 ao_report_altitude();
261 ao_delay(AO_SEC_TO_TICKS(5));
265 #if HAS_IGNITE_REPORT
266 if (ao_report_state == ao_flight_idle)
267 ao_report_continuity();
268 while (ao_flight_state == ao_flight_pad) {
270 ao_report_continuity();
272 while (c-- && ao_flight_state == ao_flight_pad)
273 pause(AO_MS_TO_TICKS(100));
276 while (ao_report_state == ao_flight_state)
277 ao_sleep(DATA_TO_XDATA(&ao_flight_state));
281 static __xdata struct ao_task ao_report_task;
286 ao_add_task(&ao_report_task, ao_report, "report");