OpenDTU/lib/Hoymiles/src/commands/MultiDataCommand.cpp

85 lines
2.3 KiB
C++

#include "MultiDataCommand.h"
#include "crc.h"
MultiDataCommand::MultiDataCommand(uint64_t target_address, uint64_t router_address, uint8_t data_type, time_t time)
: CommandAbstract(target_address, router_address)
{
_payload[0] = 0x15;
_payload[9] = 0x80;
setDataType(data_type);
_payload[11] = 0x00;
setTime(time);
_payload[16] = 0x00; // Gap
_payload[17] = 0x00; // Gap
_payload[18] = 0x00;
_payload[19] = 0x00;
_payload[20] = 0x00; // Password
_payload[21] = 0x00; // Password
_payload[22] = 0x00; // Password
_payload[23] = 0x00; // Password
udpateCRC();
_payload_size = 26;
}
void MultiDataCommand::setDataType(uint8_t data_type)
{
_payload[10] = data_type;
udpateCRC();
}
uint8_t MultiDataCommand::getDataType()
{
return _payload[10];
}
void MultiDataCommand::setTime(time_t time)
{
_payload[12] = (uint8_t)(time >> 24);
_payload[13] = (uint8_t)(time >> 16);
_payload[14] = (uint8_t)(time >> 8);
_payload[15] = (uint8_t)(time);
udpateCRC();
}
time_t MultiDataCommand::getTime()
{
return (time_t)(_payload[12] << 24)
| (time_t)(_payload[13] << 16)
| (time_t)(_payload[14] << 8)
| (time_t)(_payload[15]);
}
CommandAbstract* MultiDataCommand::getRequestFrameCommand(uint8_t frame_no)
{
_cmdRequestFrame.setTargetAddress(getTargetAddress());
_cmdRequestFrame.setFrameNo(frame_no);
return &_cmdRequestFrame;
}
bool MultiDataCommand::handleResponse(InverterAbstract* inverter, fragment_t fragment[], uint8_t max_fragment_id)
{
// All fragments are available --> Check CRC
uint16_t crc = 0xffff, crcRcv;
for (uint8_t i = 0; i < max_fragment_id; i++) {
if (i == max_fragment_id - 1) {
// Last packet
crc = crc16(fragment[i].fragment, fragment[i].len - 2, crc);
crcRcv = (fragment[i].fragment[fragment[i].len - 2] << 8)
| (fragment[i].fragment[fragment[i].len - 1]);
} else {
crc = crc16(fragment[i].fragment, fragment[i].len, crc);
}
}
return crc == crcRcv;
}
void MultiDataCommand::udpateCRC()
{
uint16_t crc = crc16(&_payload[10], 14); // From data_type till password
_payload[24] = (uint8_t)(crc >> 8);
_payload[25] = (uint8_t)(crc);
}