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_end_pos;
22 static __pdata uint32_t ao_log_start_pos;
23 static __xdata uint8_t ao_log_running;
24 static __xdata uint8_t ao_log_mutex;
27 ao_log_csum(__xdata uint8_t *b) __reentrant
32 for (i = 0; i < sizeof (struct ao_log_record); i++)
38 ao_log_data(__xdata struct ao_log_record *log) __reentrant
43 log->csum = ao_log_csum((__xdata uint8_t *) log);
44 ao_mutex_get(&ao_log_mutex); {
45 if (ao_log_current_pos >= ao_log_end_pos)
49 ao_storage_write(ao_log_current_pos,
51 sizeof (struct ao_log_record));
52 ao_log_current_pos += sizeof (struct ao_log_record);
54 } ao_mutex_put(&ao_log_mutex);
64 __xdata struct ao_log_record log;
65 __xdata uint16_t ao_flight_number;
68 ao_log_dump_check_data(void)
70 if (ao_log_csum((uint8_t *) &log) != 0)
78 if (!ao_storage_read(0, &log, sizeof (struct ao_log_record)))
79 ao_panic(AO_PANIC_LOG);
80 if (ao_log_dump_check_data() && log.type == AO_LOG_FLIGHT) {
81 ao_flight_number = log.u.flight.flight + 1;
82 if (ao_flight_number == 0)
87 ao_wakeup(&ao_flight_number);
90 __xdata uint8_t ao_log_adc_pos;
91 __xdata enum flight_state ao_log_state;
93 /* a hack to make sure that ao_log_records fill the eeprom block in even units */
94 typedef uint8_t check_log_size[1-(256 % sizeof(struct ao_log_record))] ;
101 /* For now, use all of the available space */
102 ao_log_current_pos = 0;
103 ao_log_end_pos = ao_storage_config;
107 while (!ao_log_running)
108 ao_sleep(&ao_log_running);
110 log.type = AO_LOG_FLIGHT;
111 log.tick = ao_flight_tick;
112 log.u.flight.ground_accel = ao_ground_accel;
113 log.u.flight.flight = ao_flight_number;
116 /* Write the whole contents of the ring to the log
119 ao_log_adc_pos = ao_adc_ring_next(ao_adc_head);
121 /* Write samples to EEPROM */
122 while (ao_log_adc_pos != ao_adc_head) {
123 log.type = AO_LOG_SENSOR;
124 log.tick = ao_adc_ring[ao_log_adc_pos].tick;
125 log.u.sensor.accel = ao_adc_ring[ao_log_adc_pos].accel;
126 log.u.sensor.pres = ao_adc_ring[ao_log_adc_pos].pres;
128 if ((ao_log_adc_pos & 0x1f) == 0) {
129 log.type = AO_LOG_TEMP_VOLT;
130 log.tick = ao_adc_ring[ao_log_adc_pos].tick;
131 log.u.temp_volt.temp = ao_adc_ring[ao_log_adc_pos].temp;
132 log.u.temp_volt.v_batt = ao_adc_ring[ao_log_adc_pos].v_batt;
134 log.type = AO_LOG_DEPLOY;
135 log.tick = ao_adc_ring[ao_log_adc_pos].tick;
136 log.u.deploy.drogue = ao_adc_ring[ao_log_adc_pos].sense_d;
137 log.u.deploy.main = ao_adc_ring[ao_log_adc_pos].sense_m;
140 ao_log_adc_pos = ao_adc_ring_next(ao_log_adc_pos);
142 /* Write state change to EEPROM */
143 if (ao_flight_state != ao_log_state) {
144 ao_log_state = ao_flight_state;
145 log.type = AO_LOG_STATE;
146 log.tick = ao_flight_tick;
147 log.u.state.state = ao_log_state;
148 log.u.state.reason = 0;
151 if (ao_log_state == ao_flight_landed)
155 /* Wait for a while */
156 ao_delay(AO_MS_TO_TICKS(100));
158 /* Stop logging when told to */
159 while (!ao_log_running)
160 ao_sleep(&ao_log_running);
169 ao_wakeup(&ao_log_running);
179 static __xdata struct ao_task ao_log_task;
186 /* For now, just log the flight starting at the begining of eeprom */
187 ao_log_state = ao_flight_invalid;
189 /* Create a task to log events to eeprom */
190 ao_add_task(&ao_log_task, ao_log, "log");