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Implement the tank pressure

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With the new APOS4 firmware, the latest ix3m and idive models support a
wireless tank sensor. For dives without a tank pressure sensor, the
pressure field in the sample is zero. Thus the first non-zero value
indicates the presence of a tank sensor.
This commit is contained in:
Jef Driesen 2017-09-05 20:25:30 +02:00
parent 45af27734e
commit be8b95fdf9
1 changed files with 38 additions and 0 deletions
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38
src/divesystem_idive_parser.c
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@ -64,6 +64,8 @@ struct divesystem_idive_parser_t {
unsigned int ngasmixes;
unsigned int oxygen[NGASMIXES];
unsigned int helium[NGASMIXES];
unsigned int beginpressure;
unsigned int endpressure;
};
static dc_status_t divesystem_idive_parser_set_data (dc_parser_t *abstract, const unsigned char *data, unsigned int size);
@ -113,6 +115,8 @@ divesystem_idive_parser_create (dc_parser_t **out, dc_context_t *context, unsign
parser->oxygen[i] = 0;
parser->helium[i] = 0;
}
parser->beginpressure = 0;
parser->endpressure = 0;
*out = (dc_parser_t*) parser;
@ -135,6 +139,8 @@ divesystem_idive_parser_set_data (dc_parser_t *abstract, const unsigned char *da
parser->oxygen[i] = 0;
parser->helium[i] = 0;
}
parser->beginpressure = 0;
parser->endpressure = 0;
return DC_STATUS_SUCCESS;
}
@ -173,6 +179,7 @@ divesystem_idive_parser_get_field (dc_parser_t *abstract, dc_field_type_t type,
}
dc_gasmix_t *gasmix = (dc_gasmix_t *) value;
dc_tank_t *tank = (dc_tank_t *) value;
dc_salinity_t *water = (dc_salinity_t *) value;
if (value) {
@ -191,6 +198,19 @@ divesystem_idive_parser_get_field (dc_parser_t *abstract, dc_field_type_t type,
gasmix->oxygen = parser->oxygen[flags] / 100.0;
gasmix->nitrogen = 1.0 - gasmix->oxygen - gasmix->helium;
break;
case DC_FIELD_TANK_COUNT:
if (parser->beginpressure == 0 && parser->endpressure == 0)
return DC_STATUS_UNSUPPORTED;
*((unsigned int *) value) = 1;
break;
case DC_FIELD_TANK:
tank->type = DC_TANKVOLUME_NONE;
tank->volume = 0.0;
tank->workpressure = 0.0;
tank->beginpressure = parser->beginpressure;
tank->endpressure = parser->endpressure;
tank->gasmix = DC_GASMIX_UNKNOWN;
break;
case DC_FIELD_ATMOSPHERIC:
if (parser->model >= IX3M_EASY) {
*((double *) value) = array_uint16_le (data + 11) / 10000.0;
@ -249,6 +269,8 @@ divesystem_idive_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callba
unsigned int he_previous = 0xFFFFFFFF;
unsigned int mode_previous = INVALID;
unsigned int divemode = INVALID;
unsigned int beginpressure = 0;
unsigned int endpressure = 0;
unsigned int nsamples = array_uint16_le (data + 1);
unsigned int samplesize = SZ_SAMPLE_IDIVE;
@ -363,10 +385,26 @@ divesystem_idive_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callba
sample.cns = cns / 100.0;
if (callback) callback (DC_SAMPLE_CNS, sample, userdata);
// Tank Pressure
if (samplesize == SZ_SAMPLE_IX3M_APOS4) {
unsigned int pressure = data[offset + 49];
if (beginpressure == 0 && pressure != 0) {
beginpressure = pressure;
}
if (beginpressure) {
sample.pressure.tank = 0;
sample.pressure.value = pressure;
if (callback) callback (DC_SAMPLE_PRESSURE, sample, userdata);
endpressure = pressure;
}
}
offset += samplesize;
}
// Cache the data for later use.
parser->beginpressure = beginpressure;
parser->endpressure = endpressure;
for (unsigned int i = 0; i < ngasmixes; ++i) {
parser->helium[i] = helium[i];
parser->oxygen[i] = oxygen[i];