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Heinrichs Weikamp: Add Placeholder for GPS Coordinates on OSTC5 #87

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Heinrichs Weikamp: Add Placeholder for GPS Coordinates on OSTC5 #87

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Heinrichs Weikamp: Add Placeholder for GPS Coordinates on OSTC5
mikeller Jun 16, 2025
c6bc43e
Update src/hw_ostc_parser.c
mikeller Jun 16, 2025
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23 changes: 23 additions & 0 deletions src/hw_ostc_parser.c
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Original file line number Diff line number Diff line change
Expand Up @@ -153,6 +153,11 @@ typedef struct hw_ostc_parser_t {
bool scrubber_warning_reported;
} hw_ostc_parser_t;

typedef union {
unsigned int intval;
float floatval;
} coordinate_value_t;

static dc_status_t hw_ostc_parser_get_datetime (dc_parser_t *abstract, dc_datetime_t *datetime);
static dc_status_t hw_ostc_parser_get_field (dc_parser_t *abstract, dc_field_type_t type, unsigned int flags, void *value);
static dc_status_t hw_ostc_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_t callback, void *userdata);
Expand Down Expand Up @@ -1203,6 +1208,24 @@ hw_ostc_parser_internal_foreach (hw_ostc_parser_t *parser, dc_sample_callback_t
length -= 2;
}

// GNSS position update (placeholder for now)
if (events & 0x0400) {
if (length < 8) {
ERROR (abstract->context, "Buffer underflow detected!");
return DC_STATUS_DATAFORMAT;
}

coordinate_value_t lon;
lon.intval = array_uint32_le(data + offset); // Longitude
coordinate_value_t lat;
lat.intval = array_uint32_le(data + offset + 4); // Latitude

INFO(abstract->context, "Received GPS coordinates %f / %f", lat.floatval, lon.floatval);

offset += 8;
length -= 8;
}

// Scrubber state update
if (events & 0x0800) {
if (length < 2) {
Expand Down
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