2 * Copyright © 2011 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; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
20 static __xdata uint8_t ao_log_mutex;
21 static __xdata struct ao_log_record log;
24 ao_log_csum(__xdata uint8_t *b) __reentrant
29 for (i = 0; i < sizeof (struct ao_log_record); i++)
35 ao_log_data(__xdata struct ao_log_record *log) __reentrant
40 log->csum = ao_log_csum((__xdata uint8_t *) log);
41 ao_mutex_get(&ao_log_mutex); {
42 if (ao_log_current_pos >= ao_log_end_pos && ao_log_running)
46 ao_storage_write(ao_log_current_pos,
48 sizeof (struct ao_log_record));
49 ao_log_current_pos += sizeof (struct ao_log_record);
51 } ao_mutex_put(&ao_log_mutex);
56 ao_log_dump_check_data(void)
58 if (ao_log_csum((uint8_t *) &log) != 0)
63 static __data uint8_t ao_log_adc_pos;
65 /* a hack to make sure that ao_log_records fill the eeprom block in even units */
66 typedef uint8_t check_log_size[1-(256 % sizeof(struct ao_log_record))] ;
68 #define AO_SENSOR_INTERVAL_ASCENT 1
69 #define AO_SENSOR_INTERVAL_DESCENT 10
70 #define AO_OTHER_INTERVAL 32
75 __pdata uint16_t next_sensor, next_other;
81 while (!ao_log_running)
82 ao_sleep(&ao_log_running);
84 log.type = AO_LOG_FLIGHT;
85 log.tick = ao_sample_tick;
87 log.u.flight.ground_accel = ao_ground_accel;
89 log.u.flight.flight = ao_flight_number;
92 /* Write the whole contents of the ring to the log
95 ao_log_adc_pos = ao_adc_ring_next(ao_sample_adc);
96 next_other = next_sensor = ao_adc_ring[ao_log_adc_pos].tick;
97 ao_log_state = ao_flight_startup;
99 /* Write samples to EEPROM */
100 while (ao_log_adc_pos != ao_sample_adc) {
101 log.tick = ao_adc_ring[ao_log_adc_pos].tick;
102 if ((int16_t) (log.tick - next_sensor) >= 0) {
103 log.type = AO_LOG_SENSOR;
104 log.u.sensor.accel = ao_adc_ring[ao_log_adc_pos].accel;
105 log.u.sensor.pres = ao_adc_ring[ao_log_adc_pos].pres;
107 if (ao_log_state <= ao_flight_coast)
108 next_sensor = log.tick + AO_SENSOR_INTERVAL_ASCENT;
110 next_sensor = log.tick + AO_SENSOR_INTERVAL_DESCENT;
112 if ((int16_t) (log.tick - next_other) >= 0) {
113 log.type = AO_LOG_TEMP_VOLT;
114 log.u.temp_volt.temp = ao_adc_ring[ao_log_adc_pos].temp;
115 log.u.temp_volt.v_batt = ao_adc_ring[ao_log_adc_pos].v_batt;
117 log.type = AO_LOG_DEPLOY;
118 log.u.deploy.drogue = ao_adc_ring[ao_log_adc_pos].sense_d;
119 log.u.deploy.main = ao_adc_ring[ao_log_adc_pos].sense_m;
121 next_other = log.tick + AO_OTHER_INTERVAL;
123 ao_log_adc_pos = ao_adc_ring_next(ao_log_adc_pos);
125 /* Write state change to EEPROM */
126 if (ao_flight_state != ao_log_state) {
127 ao_log_state = ao_flight_state;
128 log.type = AO_LOG_STATE;
129 log.tick = ao_sample_tick;
130 log.u.state.state = ao_log_state;
131 log.u.state.reason = 0;
134 if (ao_log_state == ao_flight_landed)
138 /* Wait for a while */
139 ao_delay(AO_MS_TO_TICKS(100));
141 /* Stop logging when told to */
142 while (!ao_log_running)
143 ao_sleep(&ao_log_running);
148 ao_log_flight(uint8_t slot)
150 if (!ao_storage_read(ao_log_pos(slot),
152 sizeof (struct ao_log_record)))
155 if (ao_log_dump_check_data() && log.type == AO_LOG_FLIGHT)
156 return log.u.flight.flight;