TractionDefs.cxx

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#include "openlcb/TractionDefs.hxx"
 
#include <string.h>
#include "utils/macros.h"
 
namespace openlcb {
 
SpeedType fp16_to_speed(const void *fp16) {
    Velocity speed;
    DASSERT(sizeof(speed) == 4);
    float16_t input;
    const uint8_t* in_p = static_cast<const uint8_t*>(fp16);
    // We assemble the input assuming it is big-endian.
    input = *in_p++;
    input <<= 8;
    input |= *in_p;
    speed.set_wire(input);
    return speed;
}
 
void speed_to_fp16(SpeedType speed, void *fp16) {
    DASSERT(sizeof(speed) == 4);
    float16_t output = speed.get_wire();
    uint8_t* o = static_cast<uint8_t*>(fp16);
    *o++ = output >> 8;
    *o = output & 0xff;
}
 
const uint64_t TractionDefs::IS_TRAIN_EVENT;
const uint64_t TractionDefs::IS_PROXY_EVENT;
 
const uint64_t TractionDefs::NODE_ID_DC_BLOCK;
const uint64_t TractionDefs::NODE_ID_DCC;
const uint64_t TractionDefs::NODE_ID_TMCC;
const uint64_t TractionDefs::NODE_ID_MARKLIN_MOTOROLA;
const uint64_t TractionDefs::NODE_ID_MTH_DCS;
 
}  // namespace openlcb