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0c84f369c3
The sensor-id in the sample struct was a uint8_t, with all the known problems of unsigned integers. In the rest of the code cylinder ids are signed integers. To avoid confusion, make it a signed int. int8_t should be enough (max. 127 cylinders). To allow for degenerate cases, use an int16_t. 16k cylinders should be enough for everyone. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
43 lines
2.6 KiB
C
43 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#ifndef SAMPLE_H
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#define SAMPLE_H
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#include "units.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define MAX_SENSORS 2
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#define NO_SENSOR -1
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struct sample // BASE TYPE BYTES UNITS RANGE DESCRIPTION
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{ // --------- ----- ----- ----- -----------
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duration_t time; // int32_t 4 seconds (0-34 yrs) elapsed dive time up to this sample
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duration_t stoptime; // int32_t 4 seconds (0-34 yrs) time duration of next deco stop
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duration_t ndl; // int32_t 4 seconds (-1 no val, 0-34 yrs) time duration before no-deco limit
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duration_t tts; // int32_t 4 seconds (0-34 yrs) time duration to reach the surface
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duration_t rbt; // int32_t 4 seconds (0-34 yrs) remaining bottom time
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depth_t depth; // int32_t 4 mm (0-2000 km) dive depth of this sample
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depth_t stopdepth; // int32_t 4 mm (0-2000 km) depth of next deco stop
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temperature_t temperature; // uint32_t 4 mK (0-4 MK) ambient temperature
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pressure_t pressure[MAX_SENSORS]; // int32_t 2x4 mbar (0-2 Mbar) cylinder pressures (main and CCR o2)
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o2pressure_t setpoint; // uint16_t 2 mbar (0-65 bar) O2 partial pressure (will be setpoint)
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o2pressure_t o2sensor[3]; // uint16_t 3x2 mbar (0-65 bar) Up to 3 PO2 sensor values (rebreather)
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bearing_t bearing; // int16_t 2 degrees (-1 no val, 0-360 deg) compass bearing
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int16_t sensor[MAX_SENSORS]; // int16_t 2x2 sensorID (0-16k) ID of cylinder pressure sensor
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uint16_t cns; // uint16_t 2 % (0-64k %) cns% accumulated
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uint8_t heartbeat; // uint8_t 1 beats/m (0-255) heart rate measurement
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volume_t sac; // 4 ml/min predefined SAC
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bool in_deco; // bool 1 y/n y/n this sample is part of deco
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bool manually_entered; // bool 1 y/n y/n this sample was entered by the user,
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// not calculated when planning a dive
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}; // Total size of structure: 63 bytes, excluding padding at end
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extern void add_sample_pressure(struct sample *sample, int sensor, int mbar);
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#ifdef __cplusplus
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}
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#endif
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#endif
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