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altos: Move old AO_LAUNCH defines to cc1111/ao_launch.h
[fw/altos] / src / kernel / ao_log_metrum.c
1 /*
2  * Copyright © 2012 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 "ao.h"
20 #include <ao_log.h>
21 #include <ao_data.h>
22 #include <ao_flight.h>
23
24 static __xdata struct ao_log_metrum log;
25
26 __code uint8_t ao_log_format = AO_LOG_FORMAT_TELEMETRUM;
27
28 static uint8_t
29 ao_log_csum(__xdata uint8_t *b) __reentrant
30 {
31         uint8_t sum = 0x5a;
32         uint8_t i;
33
34         for (i = 0; i < sizeof (struct ao_log_metrum); i++)
35                 sum += *b++;
36         return -sum;
37 }
38
39 uint8_t
40 ao_log_metrum(__xdata struct ao_log_metrum *log) __reentrant
41 {
42         uint8_t wrote = 0;
43         /* set checksum */
44         log->csum = 0;
45         log->csum = ao_log_csum((__xdata uint8_t *) log);
46         ao_mutex_get(&ao_log_mutex); {
47                 if (ao_log_current_pos >= ao_log_end_pos && ao_log_running)
48                         ao_log_stop();
49                 if (ao_log_running) {
50                         wrote = 1;
51                         ao_storage_write(ao_log_current_pos,
52                                          log,
53                                          sizeof (struct ao_log_metrum));
54                         ao_log_current_pos += sizeof (struct ao_log_metrum);
55                 }
56         } ao_mutex_put(&ao_log_mutex);
57         return wrote;
58 }
59
60 static uint8_t
61 ao_log_dump_check_data(void)
62 {
63         if (ao_log_csum((uint8_t *) &log) != 0)
64                 return 0;
65         return 1;
66 }
67
68 #if HAS_ADC
69 static __data uint8_t   ao_log_data_pos;
70
71 /* a hack to make sure that ao_log_metrums fill the eeprom block in even units */
72 typedef uint8_t check_log_size[1-(256 % sizeof(struct ao_log_metrum))] ;
73
74 #ifndef AO_SENSOR_INTERVAL_ASCENT
75 #define AO_SENSOR_INTERVAL_ASCENT       1
76 #define AO_SENSOR_INTERVAL_DESCENT      10
77 #define AO_OTHER_INTERVAL               32
78 #endif
79
80 void
81 ao_log(void)
82 {
83         __pdata uint16_t        next_sensor, next_other;
84
85         ao_storage_setup();
86
87         ao_log_scan();
88
89         while (!ao_log_running)
90                 ao_sleep(&ao_log_running);
91
92 #if HAS_FLIGHT
93         log.type = AO_LOG_FLIGHT;
94         log.tick = ao_sample_tick;
95 #if HAS_ACCEL
96         log.u.flight.ground_accel = ao_ground_accel;
97 #endif
98         log.u.flight.ground_pres = ao_ground_pres;
99         log.u.flight.flight = ao_flight_number;
100         ao_log_metrum(&log);
101 #endif
102
103         /* Write the whole contents of the ring to the log
104          * when starting up.
105          */
106         ao_log_data_pos = ao_data_ring_next(ao_data_head);
107         next_other = next_sensor = ao_data_ring[ao_log_data_pos].tick;
108         ao_log_state = ao_flight_startup;
109         for (;;) {
110                 /* Write samples to EEPROM */
111                 while (ao_log_data_pos != ao_data_head) {
112                         log.tick = ao_data_ring[ao_log_data_pos].tick;
113                         if ((int16_t) (log.tick - next_sensor) >= 0) {
114                                 log.type = AO_LOG_SENSOR;
115 #if HAS_MS5607
116                                 log.u.sensor.pres = ao_data_ring[ao_log_data_pos].ms5607_raw.pres;
117                                 log.u.sensor.temp = ao_data_ring[ao_log_data_pos].ms5607_raw.temp;
118 #endif
119 #if HAS_ACCEL
120                                 log.u.sensor.accel = ao_data_accel(&ao_data_ring[ao_log_data_pos]);
121 #endif
122                                 ao_log_metrum(&log);
123                                 if (ao_log_state <= ao_flight_coast)
124                                         next_sensor = log.tick + AO_SENSOR_INTERVAL_ASCENT;
125                                 else
126                                         next_sensor = log.tick + AO_SENSOR_INTERVAL_DESCENT;
127                         }
128                         if ((int16_t) (log.tick - next_other) >= 0) {
129                                 log.type = AO_LOG_TEMP_VOLT;
130                                 log.u.volt.v_batt = ao_data_ring[ao_log_data_pos].adc.v_batt;
131                                 log.u.volt.sense_a = ao_data_ring[ao_log_data_pos].adc.sense_a;
132                                 log.u.volt.sense_m = ao_data_ring[ao_log_data_pos].adc.sense_m;
133                                 ao_log_metrum(&log);
134                                 next_other = log.tick + AO_OTHER_INTERVAL;
135                         }
136                         ao_log_data_pos = ao_data_ring_next(ao_log_data_pos);
137                 }
138 #if HAS_FLIGHT
139                 /* Write state change to EEPROM */
140                 if (ao_flight_state != ao_log_state) {
141                         ao_log_state = ao_flight_state;
142                         log.type = AO_LOG_STATE;
143                         log.tick = ao_time();
144                         log.u.state.state = ao_log_state;
145                         log.u.state.reason = 0;
146                         ao_log_metrum(&log);
147
148                         if (ao_log_state == ao_flight_landed)
149                                 ao_log_stop();
150                 }
151 #endif
152
153                 ao_log_flush();
154
155                 /* Wait for a while */
156                 ao_delay(AO_MS_TO_TICKS(100));
157
158                 /* Stop logging when told to */
159                 while (!ao_log_running)
160                         ao_sleep(&ao_log_running);
161         }
162 }
163 #endif
164
165 uint16_t
166 ao_log_flight(uint8_t slot)
167 {
168         if (!ao_storage_read(ao_log_pos(slot),
169                              &log,
170                              sizeof (struct ao_log_metrum)))
171                 return 0;
172
173         if (ao_log_dump_check_data() && log.type == AO_LOG_FLIGHT)
174                 return log.u.flight.flight;
175         return 0;
176 }