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habpack.c
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habpack.c
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#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include <time.h>
#include <inttypes.h>
#include "habpack.h"
#include "global.h"
#include "base64.h"
#include "cmp.h"
extern void LogMessage( const char *format, ... );
#define SECONDS_IN_A_DAY 86400
static int hb_buf_ptr = 0;
static int hb_ptr_max = 20;
static bool file_reader(cmp_ctx_t *ctx, void *data, size_t limit)
{
uint32_t i;
if (hb_buf_ptr + limit >= hb_ptr_max)
return false;
for(i = 0; i < limit; i++)
{
*(uint8_t *)data = ((uint8_t *)(ctx->buf))[hb_buf_ptr];
data++;
hb_buf_ptr++;
}
return true;
}
static bool file_skipper(struct cmp_ctx_s *ctx, size_t count)
{
if (hb_buf_ptr + count >= hb_ptr_max)
return false;
hb_buf_ptr += count;
return true;
}
static size_t file_writer(cmp_ctx_t *ctx, const void *data, size_t count)
{
uint32_t i;
if (hb_buf_ptr + count >= hb_ptr_max)
return 0;
for (i = 0; i < count; i++)
{
((char*)ctx->buf)[hb_buf_ptr] = *((uint8_t*)data);
data++;
hb_buf_ptr++;
}
return count;
}
static uint16_t CRC16(unsigned char *ptr)
{
uint16_t CRC;
int j;
CRC = 0xffff;
for ( ; *ptr; ptr++ )
{
CRC ^= ( ( ( unsigned int ) *ptr ) << 8 );
for ( j = 0; j < 8; j++ )
{
if ( CRC & 0x8000 )
CRC = ( CRC << 1 ) ^ 0x1021;
else
CRC <<= 1;
}
}
return CRC;
}
#define TRY_PARSE_STRING(processing) \
if(cmp_object_is_str(&item) \
&& cmp_object_to_str(&cmp, &item, str, str_max_length)) \
{ \
processing \
}
#define TRY_PARSE_FLOAT(processing) \
if(cmp_object_is_float(&item) \
&& cmp_object_as_float(&item, &tf32)) \
{ \
processing \
}
#define TRY_PARSE_DOUBLE(processing) \
if(cmp_object_is_double(&item) \
&& cmp_object_as_double(&item, &tf64)) \
{ \
processing \
}
#define TRY_PARSE_UNSIGNED_INTEGER(processing) \
if(cmp_object_is_uinteger(&item) \
&& cmp_object_as_uinteger(&item, &tu64)) \
{ \
processing \
}
#define TRY_PARSE_SIGNED_INTEGER(processing) \
if(cmp_object_is_sinteger(&item) \
&& cmp_object_as_sinteger(&item, &ts64)) \
{ \
processing \
}
#define TRY_PARSE_ARRAY(processing) \
if(cmp_object_is_array(&item) \
&& cmp_object_as_array(&item, &array_size)) \
{ \
for (j = 0; j < array_size; j++) \
{ \
/* Read array element */ \
if(!cmp_read_object(&cmp, &item)) \
return 0; \
\
processing \
} \
}
#define TRY_PARSE_ARRAY_AT_ONCE(processing) \
if(cmp_object_is_array(&item) \
&& cmp_object_as_array(&item, &array_size)) \
{ \
processing \
}
#define TRY_PARSE_ARRAY_AT_ONCE_NESTED(processing) \
if(cmp_object_is_array(&item) \
&& cmp_object_as_array(&item, &array_size2)) \
{ \
processing \
}
void Habpack_telem_store_field(received_t *Received, uint64_t map_id, char *field_name, int64_t *ptr_integer, double *ptr_real, char *ptr_string)
{
habpack_telem_linklist_entry_t *walk_ptr, *last_ptr;
if(Received->Telemetry.habpack_extra == NULL)
{
/* First entry */
Received->Telemetry.habpack_extra = malloc(sizeof(habpack_telem_linklist_entry_t));
walk_ptr = Received->Telemetry.habpack_extra;
}
else
{
/* Not first entry, so walk */
last_ptr = Received->Telemetry.habpack_extra;
while(last_ptr->next != NULL)
{
last_ptr = last_ptr->next;
}
last_ptr->next = malloc(sizeof(habpack_telem_linklist_entry_t));
walk_ptr = last_ptr->next;
}
walk_ptr->type = map_id;
strncpy(walk_ptr->name, field_name, 31);
if(ptr_integer != NULL)
{
walk_ptr->value_type = HB_VALUE_INTEGER;
walk_ptr->value.integer = *ptr_integer;
}
else if(ptr_real != NULL)
{
walk_ptr->value_type = HB_VALUE_REAL;
walk_ptr->value.real = *ptr_real;
}
else if(ptr_string != NULL)
{
walk_ptr->value_type = HB_VALUE_STRING;
walk_ptr->value.string = strdup(ptr_string);
}
walk_ptr->next = NULL;
}
#define HABPACK_TELEM_STORE_AS_INT64(value) \
ts64 = (int64_t)value; \
Habpack_telem_store_field( \
Received, \
map_id, \
field_name, \
&ts64, \
NULL, \
NULL \
)
#define HABPACK_TELEM_STORE_AS_DOUBLE(value) \
tf64 = (double)value; \
Habpack_telem_store_field( \
Received, \
map_id, \
field_name, \
NULL, \
&tf64, \
NULL \
)
#define HABPACK_TELEM_STORE_AS_STRING(value) \
Habpack_telem_store_field( \
Received, \
map_id, \
field_name, \
NULL, \
NULL, \
value \
)
// sprintfs a real number without superfluous trailing zeroes.
// sprintf doesn't have that ability, hence this horrible little function
int snprintf_real(char *str, int max_len, double value)
{
int i, len;
len = snprintf(str, max_len, "%f,", value);
if (strchr(str, '.') != NULL)
{
// Just in case there's no dp in the resulting string. There should always be one (I think) but just in case ...
// Look backwards for first non-zero character, starting at the last digit in the string
for (i=len-2; i; i--)
{
if (str[i] != '0')
{
// Found a non zero
if (str[i] == '.')
{
// It's just zeroes after the dp, so we want to keep one zero, so step past that
i++;
}
// Add comma delimeter and null terminator, return the new length
str[++i] = ',';
str[++i] = '\0';
return i;
}
}
}
return len;
}
void Habpack_Telem_UKHAS_String(received_t *Received, char *ukhas_string, uint32_t max_length)
{
uint16_t crc;
uint32_t str_index;
habpack_telem_linklist_entry_t *walk_ptr;
/* $,CALLSIGN */
str_index = snprintf(
ukhas_string,
max_length,
"$$"
);
/* All other fields */
walk_ptr = Received->Telemetry.habpack_extra;
while(walk_ptr != NULL)
{
if(walk_ptr->value_type == HB_VALUE_INTEGER)
{
if(strcmp(walk_ptr->name, "time") == 0)
{
/* Convert time, urgh */
uint64_t temp;
temp = walk_ptr->value.integer % SECONDS_IN_A_DAY;
int hours = temp/(60*60);
temp -= (hours*60*60);
int mins = (temp/60);
int secs = temp-mins*60;
str_index += snprintf(
&ukhas_string[str_index],
(max_length - str_index),
"%02d:%02d:%02d,",
hours,mins,secs
);
}
else
{
str_index += snprintf(
&ukhas_string[str_index],
(max_length - str_index),
"%"PRId64",",
walk_ptr->value.integer
);
}
}
else if(walk_ptr->value_type == HB_VALUE_REAL)
{
str_index += snprintf_real(
&ukhas_string[str_index],
(max_length - str_index),
walk_ptr->value.real
);
}
else if(walk_ptr->value_type == HB_VALUE_STRING)
{
str_index += snprintf(
&ukhas_string[str_index],
(max_length - str_index),
"%s,",
walk_ptr->value.string
);
}
walk_ptr = walk_ptr->next;
}
/* Replace last comma with null */
ukhas_string[--str_index] = '\0';
crc = CRC16((unsigned char *)&ukhas_string[2]);
snprintf(&ukhas_string[str_index],
(max_length - str_index),
"*%04x\n",
crc
);
}
void Habpack_Telem_JSON(received_t *Received, char *json_string, uint32_t max_length)
{
uint32_t str_index;
habpack_telem_linklist_entry_t *walk_ptr;
str_index = snprintf(
json_string,
max_length,
"{\"type\":\"PAYLOAD_TELEMETRY\""
);
/* All other fields */
walk_ptr = Received->Telemetry.habpack_extra;
while(walk_ptr != NULL)
{
str_index += snprintf(
&json_string[str_index],
(max_length - str_index),
",\"%s\":",
walk_ptr->name
);
if(walk_ptr->value_type == HB_VALUE_INTEGER)
{
str_index += snprintf(
&json_string[str_index],
(max_length - str_index),
"%"PRId64,
walk_ptr->value.integer
);
}
else if(walk_ptr->value_type == HB_VALUE_REAL)
{
str_index += snprintf(
&json_string[str_index],
(max_length - str_index),
"%f",
walk_ptr->value.real
);
}
else if(walk_ptr->value_type == HB_VALUE_STRING)
{
str_index += snprintf(
&json_string[str_index],
(max_length - str_index),
"\"%s\"",
walk_ptr->value.string
);
}
walk_ptr = walk_ptr->next;
}
str_index += snprintf(
&json_string[str_index],
(max_length - str_index),
"}"
);
}
void Habpack_Telem_Destroy(received_t *Received)
{
habpack_telem_linklist_entry_t *walk_ptr, *last_ptr;
walk_ptr = Received->Telemetry.habpack_extra;
while(walk_ptr != NULL)
{
if(walk_ptr->value_type == HB_VALUE_STRING)
{
free(walk_ptr->value.string);
}
last_ptr = walk_ptr;
walk_ptr = walk_ptr->next;
free(last_ptr);
}
}
int Habpack_Process_Message(received_t *Received)
{
cmp_ctx_t cmp;
cmp_object_t item;
uint32_t map_size;
uint32_t array_size,array_size2;
uint32_t i,j,k;
uint64_t map_id;
uint64_t tu64;
int64_t ts64;
float tf32;
double tf64;
uint32_t str_max_length = 255;
char str[255];
char field_name[32];
cmp_init(&cmp, (void*)Received->Message, file_reader, file_skipper, file_writer);
hb_buf_ptr = 0;
hb_ptr_max = 256;
Received->isCallingBeacon = false;
/* Open MessagePack Map */
if (!cmp_read_map(&cmp, &map_size))
return 0;
/* Loop through each element of the Map */
for (i=0; i < map_size; i++)
{
/* Read Map ID (aka HABpack field ID) */
if (!(cmp_read_uinteger(&cmp, &map_id)))
return 0;
/* Read HABpack field object */
if(!cmp_read_object(&cmp, &item))
return 0;
/* Parse according to Map ID (aka HABpack field ID) */
switch(map_id)
{
case HABPACK_CALLSIGN:
strncpy(field_name, "callsign", 31);
TRY_PARSE_STRING(
strncpy(Received->Telemetry.Callsign, str, 31);
HABPACK_TELEM_STORE_AS_STRING(str);
)
else TRY_PARSE_UNSIGNED_INTEGER(
snprintf(Received->Telemetry.Callsign, 31, "%lld", tu64);
HABPACK_TELEM_STORE_AS_INT64(tu64);
)
else return 0;
break;
case HABPACK_SENTENCE_ID:
strncpy(field_name, "sentence_id", 31);
TRY_PARSE_UNSIGNED_INTEGER(
Received->Telemetry.SentenceId = tu64;
HABPACK_TELEM_STORE_AS_INT64(tu64);
)
else return 0;
break;
case HABPACK_TIME:
strncpy(field_name, "time", 31);
TRY_PARSE_UNSIGNED_INTEGER(
if(tu64 > SECONDS_IN_A_DAY)
{
/* Larger than 1 day, so must be unix epoch time */
Received->Telemetry.Time = tu64;
HABPACK_TELEM_STORE_AS_INT64(tu64);
/* Strip out date information. TODO: Find a good way of including this in the UKHAS ASCII */
tu64 -= (uint64_t)(tu64 / SECONDS_IN_A_DAY) * SECONDS_IN_A_DAY;
}
else
{
/* Smaller than 1 day, either we've gone over 88mph, or it's seconds since midnight today */
uint64_t unix_epoch_time;
unix_epoch_time = tu64 + (uint64_t)((uint64_t)time(NULL) / SECONDS_IN_A_DAY) * SECONDS_IN_A_DAY;
Received->Telemetry.Time = unix_epoch_time;
HABPACK_TELEM_STORE_AS_INT64(unix_epoch_time);
}
int hours = tu64/(60*60);
tu64 = tu64 - (hours*60*60);
int mins = (tu64/60);
int secs = tu64-mins*60;
snprintf(Received->Telemetry.TimeString, 9, "%02d:%02d:%02d",hours,mins,secs);
)
else return 0;
break;
case HABPACK_POSITION:
TRY_PARSE_ARRAY_AT_ONCE(
/* Check size of the array */
if(array_size == 2 || array_size == 3)
{
/* Latitude - Signed Integer */
if (!(cmp_read_sinteger(&cmp, &ts64)))
{
return 0;
}
Received->Telemetry.Latitude = (double)ts64 / 10e6;
strncpy(field_name, "latitude", 31);
HABPACK_TELEM_STORE_AS_DOUBLE((double)ts64 / 10e6);
/* Longitude - Signed Integer */
if (!(cmp_read_sinteger(&cmp, &ts64)))
{
return 0;
}
Received->Telemetry.Longitude = (double)ts64 / 10e6;
strncpy(field_name, "longitude", 31);
HABPACK_TELEM_STORE_AS_DOUBLE((double)ts64 / 10e6);
/* Altitude (optional) - Signed Integer */
Received->Telemetry.Altitude = 0.0;
if(array_size == 3)
{
if(!(cmp_read_sinteger(&cmp, &ts64)))
{
return 0;
}
Received->Telemetry.Altitude = ts64;
strncpy(field_name, "altitude", 31);
HABPACK_TELEM_STORE_AS_INT64(ts64);
}
}
else return 0;
)
else return 0;
break;
case HABPACK_GNSS_SATELLITES:
strncpy(field_name, "gnss_satellites", 31);
TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_INT64(tu64);
)
else return 0;
break;
case HABPACK_GNSS_LOCK:
strncpy(field_name, "gnss_lock_type", 31);
TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_INT64(tu64);
)
else return 0;
break;
case HABPACK_VOLTAGE:
strncpy(field_name, "voltage", 31);
TRY_PARSE_FLOAT(
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);
)
else TRY_PARSE_DOUBLE(
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
else TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)tu64 / 1000.0); // Scale for mV
)
else TRY_PARSE_SIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)ts64 / 1000.0); // Scale for mV
)
else TRY_PARSE_ARRAY(
snprintf(field_name, 31, "voltage%d", j);
TRY_PARSE_FLOAT(
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);
)
else TRY_PARSE_DOUBLE(
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
else TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)tu64 / 1000.0); // Scale for mV
)
TRY_PARSE_SIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)ts64 / 1000.0); // Scale for mV
)
else return 0;
)
else return 0;
break;
case HABPACK_INTERNAL_TEMPERATURE:
strncpy(field_name, "internal_temperature", 31);
TRY_PARSE_FLOAT(
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);
)
else TRY_PARSE_DOUBLE(
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
else TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)tu64 / 1000.0); // Scale for milli-degrees
)
else TRY_PARSE_SIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)ts64 / 1000.0); // Scale for milli-degrees
)
else TRY_PARSE_ARRAY(
snprintf(field_name, 31, "internal_temperature%d", j);
TRY_PARSE_FLOAT(
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);
)
else TRY_PARSE_DOUBLE(
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
else TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)tu64 / 1000.0); // Scale for milli-degrees
)
TRY_PARSE_SIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)ts64 / 1000.0); // Scale for milli-degrees
)
else return 0;
)
else return 0;
break;
case HABPACK_EXTERNAL_TEMPERATURE:
strncpy(field_name, "external_temperature", 31);
TRY_PARSE_FLOAT(
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);
)
else TRY_PARSE_DOUBLE(
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
else TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)tu64 / 1000.0); // Scale for milli-degrees
)
else TRY_PARSE_SIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)ts64 / 1000.0); // Scale for milli-degrees
)
else TRY_PARSE_ARRAY(
snprintf(field_name, 31, "external_temperature%d", j);
TRY_PARSE_FLOAT(
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);
)
else TRY_PARSE_DOUBLE(
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
else TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)tu64 / 1000.0); // Scale for milli-degrees
)
TRY_PARSE_SIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)ts64 / 1000.0); // Scale for milli-degrees
)
else return 0;
)
else return 0;
break;
case HABPACK_PRESSURE:
strncpy(field_name, "pressure", 31);
TRY_PARSE_FLOAT(
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);
)
else TRY_PARSE_DOUBLE(
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
else TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)tu64 / 1000.0); // Scale for milli-bar
)
else TRY_PARSE_ARRAY(
snprintf(field_name, 31, "pressure%d", j);
TRY_PARSE_FLOAT(
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);
)
else TRY_PARSE_DOUBLE(
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)tu64 / 1000.0); // Scale for milli-bar
)
else return 0;
)
else return 0;
break;
case HABPACK_RELATIVE_HUMIDITY:
strncpy(field_name, "relative_humidity", 31);
TRY_PARSE_FLOAT(
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);
)
else TRY_PARSE_DOUBLE(
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
else TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE(tu64);
)
else TRY_PARSE_ARRAY(
snprintf(field_name, 31, "relative_humidity%d", j);
TRY_PARSE_FLOAT(
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);
)
else TRY_PARSE_DOUBLE(
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE(tu64);
)
else return 0;
)
else return 0;
break;
case HABPACK_ABSOLUTE_HUMIDITY:
strncpy(field_name, "absolute_humidity", 31);
TRY_PARSE_FLOAT(
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);
)
else TRY_PARSE_DOUBLE(
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
else TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)tu64 / 1000.0); // Scale for milli-grams / m^3
)
else TRY_PARSE_ARRAY(
snprintf(field_name, 31, "absolute_humidity%d", j);
TRY_PARSE_FLOAT(
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);
)
else TRY_PARSE_DOUBLE(
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_DOUBLE((double)tu64 / 1000.0); // Scale for milli-grams / m^3
)
else return 0;
)
else return 0;
break;
case HABPACK_DOWNLINK_FREQUENCY:
strncpy(field_name, "downlink_frequency", 31);
TRY_PARSE_UNSIGNED_INTEGER(
Received->isCallingBeacon = true;
Received->Telemetry.DownlinkFrequency = tu64;
HABPACK_TELEM_STORE_AS_INT64(tu64);
)
else return 0;
break;
case HABPACK_DOWNLINK_LORA_MODE:
strncpy(field_name, "downlink_lora_mode", 31);
TRY_PARSE_UNSIGNED_INTEGER(
Received->Telemetry.DownlinkLoraMode = tu64;
HABPACK_TELEM_STORE_AS_INT64(tu64);
)
else return 0;
break;
case HABPACK_DOWNLINK_LORA_IMPLICIT:
strncpy(field_name, "downlink_lora_implicit", 31);
TRY_PARSE_UNSIGNED_INTEGER(
Received->Telemetry.DownlinkLoraMode = -1;
Received->Telemetry.DownlinkLoraImplicit = tu64;
HABPACK_TELEM_STORE_AS_INT64(tu64);
)
else return 0;
break;
case HABPACK_DOWNLINK_LORA_ERRORCODING:
strncpy(field_name, "downlink_lora_error_coding", 31);
TRY_PARSE_UNSIGNED_INTEGER(
Received->Telemetry.DownlinkLoraMode = -1;
Received->Telemetry.DownlinkLoraErrorCoding = tu64;
HABPACK_TELEM_STORE_AS_INT64(tu64);
)
else return 0;
break;
case HABPACK_DOWNLINK_LORA_BANDWIDTH:
strncpy(field_name, "downlink_lora_bandwidth", 31);
TRY_PARSE_UNSIGNED_INTEGER(
Received->Telemetry.DownlinkLoraMode = -1;
/* Convert integer ID to float bandwidth. Ref: https://ukhas.org.uk/communication:habpack */
switch(tu64)
{
case 0:
tf64 = 7.8;
break;
case 1:
tf64 = 10.4;
break;
case 2:
tf64 = 15.6;
break;
case 3:
tf64 = 20.8;
break;
case 4:
tf64 = 31.25;
break;
case 5:
tf64 = 41.7;
break;
case 6:
tf64 = 62.5;
break;
case 7:
tf64 = 125;
break;
case 8:
tf64 = 250;
break;
case 9:
tf64 = 500;
break;
default:
return 0;
}
Received->Telemetry.DownlinkLoraBandwidth = tf64;
HABPACK_TELEM_STORE_AS_DOUBLE(tf64);
)
else return 0;
break;
case HABPACK_DOWNLINK_LORA_SPREADING:
strncpy(field_name, "downlink_lora_spreading_factor", 31);
TRY_PARSE_UNSIGNED_INTEGER(
Received->Telemetry.DownlinkLoraMode = -1;
Received->Telemetry.DownlinkLoraSpreadingFactor = tu64;
HABPACK_TELEM_STORE_AS_INT64(tu64);
)
else return 0;
break;
case HABPACK_DOWNLINK_LORA_LDO:
strncpy(field_name, "downlink_lora_ldo_on", 31);
TRY_PARSE_UNSIGNED_INTEGER(
Received->Telemetry.DownlinkLoraMode = -1;
Received->Telemetry.DownlinkLoraLowDatarateOptimise = tu64;
HABPACK_TELEM_STORE_AS_INT64(tu64);
)
else return 0;
break;
case HABPACK_UPLINK_COUNT:
strncpy(field_name, "uplink_count", 31);
TRY_PARSE_UNSIGNED_INTEGER(
HABPACK_TELEM_STORE_AS_INT64(tu64);
)
else return 0;
break;
case HABPACK_PREDICTED_LANDING_TIME:
strncpy(field_name, "predicted_landing_time", 31);
TRY_PARSE_UNSIGNED_INTEGER(
if(tu64 > SECONDS_IN_A_DAY)
{
/* Larger than 1 day, so must be unix epoch time */
HABPACK_TELEM_STORE_AS_INT64(tu64);
/* Strip out date information. TODO: Find a good way of including this in the UKHAS ASCII */
tu64 -= (uint64_t)(tu64 / SECONDS_IN_A_DAY) * SECONDS_IN_A_DAY;
}
else
{
/* Smaller than 1 day, either we've gone over 88mph, or it's seconds since midnight today */
HABPACK_TELEM_STORE_AS_INT64(tu64 + (uint64_t)((uint64_t)time(NULL) / SECONDS_IN_A_DAY) * SECONDS_IN_A_DAY);
}
)
else return 0;
break;
case HABPACK_PREDICTED_LANDING_POSITION:
TRY_PARSE_ARRAY_AT_ONCE(
/* Check size of the array */
if(array_size == 2 || array_size == 3)
{
/* Latitude - Signed Integer */
if (!(cmp_read_sinteger(&cmp, &ts64)))
{
return 0;
}
strncpy(field_name, "predicted_landing_latitude", 31);
HABPACK_TELEM_STORE_AS_DOUBLE((double)ts64 / 10e6);
/* Longitude - Signed Integer */
if (!(cmp_read_sinteger(&cmp, &ts64)))
{
return 0;
}
strncpy(field_name, "predicted_landing_longitude", 31);
HABPACK_TELEM_STORE_AS_DOUBLE((double)ts64 / 10e6);
/* Altitude (optional) - Signed Integer */
if(array_size == 3)
{
if(!(cmp_read_sinteger(&cmp, &ts64)))
{
return 0;
}
strncpy(field_name, "predicted_landing_altitude", 31);
HABPACK_TELEM_STORE_AS_INT64(ts64);
}
}
else return 0;
)
else return 0;
break;
default: // Unknown
TRY_PARSE_STRING(
snprintf(field_name, 31, "%lld", map_id);
HABPACK_TELEM_STORE_AS_STRING(str);
)
else TRY_PARSE_UNSIGNED_INTEGER(
snprintf(field_name, 31, "%lld", map_id);
HABPACK_TELEM_STORE_AS_INT64(tu64);
)
else TRY_PARSE_SIGNED_INTEGER(
snprintf(field_name, 31, "%lld", map_id);
HABPACK_TELEM_STORE_AS_INT64(ts64);
)
else TRY_PARSE_FLOAT(
snprintf(field_name, 31, "%lld", map_id);
HABPACK_TELEM_STORE_AS_DOUBLE(tf32);