modbus_device_handler.h

/*
   Copyright (C) AC SOFTWARE SP. Z O.O
 
   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; either version 2
   of the License, or (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
 
#ifndef SRC_SUPLA_MODBUS_MODBUS_DEVICE_HANDLER_H_
#define SRC_SUPLA_MODBUS_MODBUS_DEVICE_HANDLER_H_
 
#include "modbus_client_handler.h"
 
#define EM_REGISTER_BLOCK_MAX_SIZE (30)
 
class SuplaDeviceClass;
 
namespace Supla {
 
class ModbusDeviceHandler : public ModbusClientHandler {
 public:
  explicit ModbusDeviceHandler(uint16_t offset = 0);
 
  Supla::Modbus::Result holdingProcessRequest(uint16_t address,
                               uint16_t nRegs,
                               uint8_t *regBuffer,
                               Supla::Modbus::Access access) override;
 
  bool isHoldingSupported() override;
  bool isInputSupported() override;
 private:
  int fillRegBuffer(uint8_t *regBuffer,
                    char *input,
                    int *reg,
                    int regOffset,
                    int nRegs,
                    int fieldSize);
};
 
}  // namespace Supla
 
#endif  // SRC_SUPLA_MODBUS_MODBUS_DEVICE_HANDLER_H_