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(__xdata uint8_t *b) __reentrant
31 for (i = 0; i < sizeof (struct ao_log_record); i++)
37 ao_log_data(__xdata struct ao_log_record *log) __reentrant
42 log->csum = ao_log_csum((__xdata uint8_t *) log);
43 ao_mutex_get(&ao_log_mutex); {
46 ao_ee_write(ao_log_current_pos,
48 sizeof (struct ao_log_record));
49 ao_log_current_pos += sizeof (struct ao_log_record);
50 if (ao_log_current_pos >= AO_EE_DATA_SIZE)
51 ao_log_current_pos = 0;
52 if (ao_log_current_pos == ao_log_start_pos)
55 } ao_mutex_put(&ao_log_mutex);
65 __xdata struct ao_log_record log;
66 __xdata uint16_t ao_flight_number;
69 ao_log_dump_check_data(void)
71 if (ao_log_csum((uint8_t *) &log) != 0)
79 if (!ao_ee_read(0, (uint8_t *) &log, sizeof (struct ao_log_record)))
80 ao_panic(AO_PANIC_LOG);
81 if (ao_log_dump_check_data() && log.type == AO_LOG_FLIGHT) {
82 ao_flight_number = log.u.flight.flight + 1;
83 if (ao_flight_number == 0)
88 ao_wakeup(&ao_flight_number);
91 __xdata uint8_t ao_log_adc_pos;
92 __xdata enum flight_state ao_log_state;
94 /* a hack to make sure that ao_log_records fill the eeprom block in even units */
95 typedef uint8_t check_log_size[1-(256 % sizeof(struct ao_log_record))] ;
102 while (!ao_log_running)
103 ao_sleep(&ao_log_running);
105 log.type = AO_LOG_FLIGHT;
106 log.tick = ao_flight_tick;
107 log.u.flight.ground_accel = ao_ground_accel;
108 log.u.flight.flight = ao_flight_number;
111 /* Write the whole contents of the ring to the log
114 ao_log_adc_pos = ao_adc_ring_next(ao_adc_head);
116 /* Write samples to EEPROM */
117 while (ao_log_adc_pos != ao_adc_head) {
118 log.type = AO_LOG_SENSOR;
119 log.tick = ao_adc_ring[ao_log_adc_pos].tick;
120 log.u.sensor.accel = ao_adc_ring[ao_log_adc_pos].accel;
121 log.u.sensor.pres = ao_adc_ring[ao_log_adc_pos].pres;
123 if ((ao_log_adc_pos & 0x1f) == 0) {
124 log.type = AO_LOG_TEMP_VOLT;
125 log.tick = ao_adc_ring[ao_log_adc_pos].tick;
126 log.u.temp_volt.temp = ao_adc_ring[ao_log_adc_pos].temp;
127 log.u.temp_volt.v_batt = ao_adc_ring[ao_log_adc_pos].v_batt;
129 log.type = AO_LOG_DEPLOY;
130 log.tick = ao_adc_ring[ao_log_adc_pos].tick;
131 log.u.deploy.drogue = ao_adc_ring[ao_log_adc_pos].sense_d;
132 log.u.deploy.main = ao_adc_ring[ao_log_adc_pos].sense_m;
135 ao_log_adc_pos = ao_adc_ring_next(ao_log_adc_pos);
137 /* Write state change to EEPROM */
138 if (ao_flight_state != ao_log_state) {
139 ao_log_state = ao_flight_state;
140 log.type = AO_LOG_STATE;
141 log.tick = ao_flight_tick;
142 log.u.state.state = ao_log_state;
143 log.u.state.reason = 0;
146 if (ao_log_state == ao_flight_landed)
150 /* Wait for a while */
151 ao_delay(AO_MS_TO_TICKS(100));
153 /* Stop logging when told to */
154 while (!ao_log_running)
155 ao_sleep(&ao_log_running);
164 ao_wakeup(&ao_log_running);
174 static __xdata struct ao_task ao_log_task;
181 /* For now, just log the flight starting at the begining of eeprom */
182 ao_log_start_pos = 0;
183 ao_log_current_pos = ao_log_start_pos;
184 ao_log_state = ao_flight_invalid;
186 /* Create a task to log events to eeprom */
187 ao_add_task(&ao_log_task, ao_log, "log");