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; 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 __pdata uint32_t ao_log_current_pos;
21 static __pdata uint32_t ao_log_start_pos;
22 static __xdata uint8_t ao_log_running;
23 static __xdata uint8_t ao_log_mutex;
26 ao_log_csum(uint8_t *b)
31 for (i = 0; i < sizeof (struct ao_log_record); i++)
37 ao_log_data(struct ao_log_record *log)
41 log->csum = ao_log_csum((uint8_t *) log);
42 ao_mutex_get(&ao_log_mutex); {
44 ao_ee_write(ao_log_current_pos,
46 sizeof (struct ao_log_record));
47 ao_log_current_pos += sizeof (struct ao_log_record);
48 if (ao_log_current_pos >= AO_EE_DATA_SIZE)
49 ao_log_current_pos = 0;
50 if (ao_log_current_pos == ao_log_start_pos)
53 } ao_mutex_put(&ao_log_mutex);
62 __xdata struct ao_log_record log;
63 __xdata uint16_t ao_flight_number;
66 ao_log_dump_check_data(void)
68 if (ao_log_csum((uint8_t *) &log) != 0)
76 if (!ao_ee_read(0, (uint8_t *) &log, sizeof (struct ao_log_record)))
77 ao_panic(AO_PANIC_LOG);
78 if (ao_log_dump_check_data() && log.type == AO_LOG_FLIGHT) {
79 ao_flight_number = log.u.flight.flight + 1;
80 if (ao_flight_number == 0)
85 ao_wakeup(&ao_flight_number);
88 __xdata uint8_t ao_log_adc_pos;
89 __xdata enum flight_state ao_log_state;
91 /* a hack to make sure that ao_log_records fill the eeprom block in even units */
92 typedef uint8_t check_log_size[1-(256 % sizeof(struct ao_log_record))] ;
99 while (!ao_log_running)
100 ao_sleep(&ao_log_running);
102 log.type = AO_LOG_FLIGHT;
103 log.tick = ao_flight_tick;
104 log.u.flight.ground_accel = ao_ground_accel;
105 log.u.flight.flight = ao_flight_number;
108 /* Write the whole contents of the ring to the log
111 ao_log_adc_pos = ao_adc_ring_next(ao_adc_head);
113 /* Write samples to EEPROM */
114 while (ao_log_adc_pos != ao_adc_head) {
115 log.type = AO_LOG_SENSOR;
116 log.tick = ao_adc_ring[ao_log_adc_pos].tick;
117 log.u.sensor.accel = ao_adc_ring[ao_log_adc_pos].accel;
118 log.u.sensor.pres = ao_adc_ring[ao_log_adc_pos].pres;
120 if ((ao_log_adc_pos & 0x1f) == 0) {
121 log.type = AO_LOG_TEMP_VOLT;
122 log.tick = ao_adc_ring[ao_log_adc_pos].tick;
123 log.u.temp_volt.temp = ao_adc_ring[ao_log_adc_pos].temp;
124 log.u.temp_volt.v_batt = ao_adc_ring[ao_log_adc_pos].v_batt;
126 log.type = AO_LOG_DEPLOY;
127 log.tick = ao_adc_ring[ao_log_adc_pos].tick;
128 log.u.deploy.drogue = ao_adc_ring[ao_log_adc_pos].sense_d;
129 log.u.deploy.main = ao_adc_ring[ao_log_adc_pos].sense_m;
132 ao_log_adc_pos = ao_adc_ring_next(ao_log_adc_pos);
134 /* Write state change to EEPROM */
135 if (ao_flight_state != ao_log_state) {
136 ao_log_state = ao_flight_state;
137 log.type = AO_LOG_STATE;
138 log.tick = ao_flight_tick;
139 log.u.state.state = ao_log_state;
140 log.u.state.reason = 0;
143 if (ao_log_state == ao_flight_landed)
147 /* Wait for a while */
148 ao_delay(AO_MS_TO_TICKS(100));
150 /* Stop logging when told to */
151 while (!ao_log_running)
152 ao_sleep(&ao_log_running);
161 ao_wakeup(&ao_log_running);
171 static __xdata struct ao_task ao_log_task;
178 /* For now, just log the flight starting at the begining of eeprom */
179 ao_log_start_pos = 0;
180 ao_log_current_pos = ao_log_start_pos;
181 ao_log_state = ao_flight_invalid;
183 /* Create a task to log events to eeprom */
184 ao_add_task(&ao_log_task, ao_log, "log");