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/*
* Copyright © 2011 Keith Packard <keithp@keithp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "ao.h"
static __data uint16_t ao_log_tiny_interval;
#define AO_LOG_TINY_INTERVAL_DEFAULT AO_MS_TO_TICKS(1000)
#if USE_FAST_ASCENT_LOG
#define AO_LOG_TINY_INTERVAL_ASCENT AO_MS_TO_TICKS(100)
#define AO_PAD_RING 8
#else
#define AO_LOG_TINY_INTERVAL_ASCENT AO_LOG_TINY_INTERVAL_DEFAULT
#define AO_PAD_RING 2
#endif
__code uint8_t ao_log_format = AO_LOG_FORMAT_TINY;
void
ao_log_tiny_set_interval(uint16_t ticks)
{
ao_log_tiny_interval = ticks;
}
static void ao_log_tiny_data(uint16_t d)
{
if (ao_log_current_pos >= ao_log_end_pos && ao_log_running)
ao_log_stop();
if (ao_log_running) {
ao_storage_write(ao_log_current_pos, DATA_TO_XDATA(&d), 2);
ao_log_current_pos += 2;
}
}
static __xdata uint16_t ao_log_pad_ring[AO_PAD_RING];
static __pdata uint8_t ao_log_pad_ring_pos;
#define ao_pad_ring_next(n) (((n) + 1) & (AO_PAD_RING - 1))
static void ao_log_tiny_queue(uint16_t d)
{
ao_log_pad_ring[ao_log_pad_ring_pos] = d;
ao_log_pad_ring_pos = ao_pad_ring_next(ao_log_pad_ring_pos);
}
static void ao_log_tiny_start(void)
{
uint8_t p;
uint16_t d;
ao_log_tiny_data(ao_flight_number);
ao_log_tiny_data(ao_ground_pres);
p = ao_log_pad_ring_pos;
do {
d = ao_log_pad_ring[p];
/*
* ignore unwritten slots
*/
if (d)
ao_log_tiny_data(d);
p = ao_pad_ring_next(p);
} while (p != ao_log_pad_ring_pos);
}
void
ao_log(void)
{
uint16_t last_time;
uint16_t now;
enum ao_flight_state ao_log_tiny_state;
int32_t sum;
int16_t count;
uint8_t ao_log_data;
uint8_t ao_log_started = 0;
ao_storage_setup();
ao_log_scan();
ao_log_tiny_state = ao_flight_invalid;
ao_log_tiny_interval = AO_LOG_TINY_INTERVAL_ASCENT;
sum = 0;
count = 0;
ao_log_data = ao_sample_data;
last_time = ao_time();
for (;;) {
/*
* Add in pending sample data
*/
ao_sleep(DATA_TO_XDATA(&ao_sample_data));
while (ao_log_data != ao_sample_data) {
sum += ao_data_pres(&ao_data_ring[ao_log_data]);
count++;
ao_log_data = ao_data_ring_next(ao_log_data);
}
if (ao_log_running) {
if (!ao_log_started) {
ao_log_tiny_start();
ao_log_started = 1;
}
if (ao_flight_state != ao_log_tiny_state) {
ao_log_tiny_data(ao_flight_state | 0x8000);
ao_log_tiny_state = ao_flight_state;
ao_log_tiny_interval = AO_LOG_TINY_INTERVAL_DEFAULT;
#if AO_LOG_TINY_INTERVAL_ASCENT != AO_LOG_TINY_INTERVAL_DEFAULT
if (ao_log_tiny_state <= ao_flight_coast)
ao_log_tiny_interval = AO_LOG_TINY_INTERVAL_ASCENT;
#endif
if (ao_log_tiny_state == ao_flight_landed)
ao_log_stop();
}
}
/* Stop logging when told to */
if (!ao_log_running && ao_log_started)
ao_exit();
/*
* Write out the sample when finished
*/
now = ao_time();
if ((int16_t) (now - (last_time + ao_log_tiny_interval)) >= 0 && count) {
count = sum / count;
if (ao_log_started)
ao_log_tiny_data(count);
else
ao_log_tiny_queue(count);
sum = 0;
count = 0;
last_time = now;
}
}
}
uint16_t
ao_log_flight(uint8_t slot)
{
static __xdata uint16_t flight;
(void) slot;
ao_storage_read(0, &flight, 2);
if (flight == 0xffff)
flight = 0;
return flight;
}
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