| /* |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| */ |
| |
| #include <stdio.h> |
| #include <plc4c/spi/evaluation_helper.h> |
| #include "s7_address.h" |
| |
| // Array of discriminator values that match the enum type constants. |
| // (The order is identical to the enum constants so we can use the |
| // enum constant to directly access a given types discriminator values) |
| const plc4c_s7_read_write_s7_address_discriminator plc4c_s7_read_write_s7_address_discriminators[] = { |
| {/* plc4c_s7_read_write_s7_address_any */ |
| .addressType = 0x10} |
| }; |
| |
| // Function returning the discriminator values for a given type constant. |
| plc4c_s7_read_write_s7_address_discriminator plc4c_s7_read_write_s7_address_get_discriminator(plc4c_s7_read_write_s7_address_type type) { |
| return plc4c_s7_read_write_s7_address_discriminators[type]; |
| } |
| |
| // Create an empty NULL-struct |
| static const plc4c_s7_read_write_s7_address plc4c_s7_read_write_s7_address_null_const; |
| |
| plc4c_s7_read_write_s7_address plc4c_s7_read_write_s7_address_null() { |
| return plc4c_s7_read_write_s7_address_null_const; |
| } |
| |
| |
| // Parse function. |
| plc4c_return_code plc4c_s7_read_write_s7_address_parse(plc4c_spi_read_buffer* io, plc4c_s7_read_write_s7_address** _message) { |
| uint16_t startPos = plc4c_spi_read_get_pos(io); |
| uint16_t curPos; |
| plc4c_return_code _res = OK; |
| |
| // Allocate enough memory to contain this data structure. |
| (*_message) = malloc(sizeof(plc4c_s7_read_write_s7_address)); |
| if(*_message == NULL) { |
| return NO_MEMORY; |
| } |
| |
| // Discriminator Field (addressType) (Used as input to a switch field) |
| uint8_t addressType = 0; |
| _res = plc4c_spi_read_unsigned_byte(io, 8, (uint8_t*) &addressType); |
| if(_res != OK) { |
| return _res; |
| } |
| |
| // Switch Field (Depending on the discriminator values, passes the instantiation to a sub-type) |
| if(addressType == 0x10) { /* S7AddressAny */ |
| (*_message)->_type = plc4c_s7_read_write_s7_address_type_plc4c_s7_read_write_s7_address_any; |
| |
| // Enum field (transportSize) |
| plc4c_s7_read_write_transport_size transportSize = plc4c_s7_read_write_transport_size_null(); |
| _res = plc4c_spi_read_signed_byte(io, 8, (int8_t*) &transportSize); |
| if(_res != OK) { |
| return _res; |
| } |
| (*_message)->s7_address_any_transport_size = transportSize; |
| |
| |
| |
| // Simple Field (numberOfElements) |
| uint16_t numberOfElements = 0; |
| _res = plc4c_spi_read_unsigned_short(io, 16, (uint16_t*) &numberOfElements); |
| if(_res != OK) { |
| return _res; |
| } |
| (*_message)->s7_address_any_number_of_elements = numberOfElements; |
| |
| |
| |
| // Simple Field (dbNumber) |
| uint16_t dbNumber = 0; |
| _res = plc4c_spi_read_unsigned_short(io, 16, (uint16_t*) &dbNumber); |
| if(_res != OK) { |
| return _res; |
| } |
| (*_message)->s7_address_any_db_number = dbNumber; |
| |
| |
| |
| // Enum field (area) |
| plc4c_s7_read_write_memory_area area = plc4c_s7_read_write_memory_area_null(); |
| _res = plc4c_spi_read_signed_byte(io, 8, (int8_t*) &area); |
| if(_res != OK) { |
| return _res; |
| } |
| (*_message)->s7_address_any_area = area; |
| |
| |
| |
| // Reserved Field (Compartmentalized so the "reserved" variable can't leak) |
| { |
| unsigned int _reserved = 0; |
| _res = plc4c_spi_read_unsigned_byte(io, 5, (uint8_t*) &_reserved); |
| if(_res != OK) { |
| return _res; |
| } |
| if(_reserved != 0x00) { |
| printf("Expected constant value '%d' but got '%d' for reserved field.", 0x00, _reserved); |
| } |
| } |
| |
| |
| |
| // Simple Field (byteAddress) |
| uint16_t byteAddress = 0; |
| _res = plc4c_spi_read_unsigned_short(io, 16, (uint16_t*) &byteAddress); |
| if(_res != OK) { |
| return _res; |
| } |
| (*_message)->s7_address_any_byte_address = byteAddress; |
| |
| |
| |
| // Simple Field (bitAddress) |
| unsigned int bitAddress = 0; |
| _res = plc4c_spi_read_unsigned_byte(io, 3, (uint8_t*) &bitAddress); |
| if(_res != OK) { |
| return _res; |
| } |
| (*_message)->s7_address_any_bit_address = bitAddress; |
| |
| } |
| |
| return OK; |
| } |
| |
| plc4c_return_code plc4c_s7_read_write_s7_address_serialize(plc4c_spi_write_buffer* io, plc4c_s7_read_write_s7_address* _message) { |
| plc4c_return_code _res = OK; |
| |
| // Discriminator Field (addressType) |
| plc4c_spi_write_unsigned_byte(io, 8, plc4c_s7_read_write_s7_address_get_discriminator(_message->_type).addressType); |
| |
| // Switch Field (Depending of the current type, serialize the sub-type elements) |
| switch(_message->_type) { |
| case plc4c_s7_read_write_s7_address_type_plc4c_s7_read_write_s7_address_any: { |
| |
| // Enum field (transportSize) |
| _res = plc4c_spi_write_signed_byte(io, 8, _message->s7_address_any_transport_size); |
| if(_res != OK) { |
| return _res; |
| } |
| |
| // Simple Field (numberOfElements) |
| _res = plc4c_spi_write_unsigned_short(io, 16, _message->s7_address_any_number_of_elements); |
| if(_res != OK) { |
| return _res; |
| } |
| |
| // Simple Field (dbNumber) |
| _res = plc4c_spi_write_unsigned_short(io, 16, _message->s7_address_any_db_number); |
| if(_res != OK) { |
| return _res; |
| } |
| |
| // Enum field (area) |
| _res = plc4c_spi_write_signed_byte(io, 8, _message->s7_address_any_area); |
| if(_res != OK) { |
| return _res; |
| } |
| |
| // Reserved Field |
| _res = plc4c_spi_write_unsigned_byte(io, 5, 0x00); |
| if(_res != OK) { |
| return _res; |
| } |
| |
| // Simple Field (byteAddress) |
| _res = plc4c_spi_write_unsigned_short(io, 16, _message->s7_address_any_byte_address); |
| if(_res != OK) { |
| return _res; |
| } |
| |
| // Simple Field (bitAddress) |
| _res = plc4c_spi_write_unsigned_byte(io, 3, _message->s7_address_any_bit_address); |
| if(_res != OK) { |
| return _res; |
| } |
| |
| break; |
| } |
| } |
| |
| return OK; |
| } |
| |
| uint16_t plc4c_s7_read_write_s7_address_length_in_bytes(plc4c_s7_read_write_s7_address* _message) { |
| return plc4c_s7_read_write_s7_address_length_in_bits(_message) / 8; |
| } |
| |
| uint16_t plc4c_s7_read_write_s7_address_length_in_bits(plc4c_s7_read_write_s7_address* _message) { |
| uint16_t lengthInBits = 0; |
| |
| // Discriminator Field (addressType) |
| lengthInBits += 8; |
| |
| // Depending of the current type, add the length of sub-type elements ... |
| switch(_message->_type) { |
| case plc4c_s7_read_write_s7_address_type_plc4c_s7_read_write_s7_address_any: { |
| |
| // Enum Field (transportSize) |
| lengthInBits += 8; |
| |
| |
| // Simple field (numberOfElements) |
| lengthInBits += 16; |
| |
| |
| // Simple field (dbNumber) |
| lengthInBits += 16; |
| |
| |
| // Enum Field (area) |
| lengthInBits += 8; |
| |
| |
| // Reserved Field (reserved) |
| lengthInBits += 5; |
| |
| |
| // Simple field (byteAddress) |
| lengthInBits += 16; |
| |
| |
| // Simple field (bitAddress) |
| lengthInBits += 3; |
| |
| break; |
| } |
| } |
| |
| return lengthInBits; |
| } |
| |