2 * Copyright (C) 2015, 2016 "IoT.bzh"
3 * Author "Romain Forlot" <romain.forlot@iot.bzh>
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 decoder_t::decoder_t()
19 : decoded_value{false, openxc_DynamicField_Type_STRING, false, "", false, 0, false, false}
23 float decoder_t::parseSignalBitfield(const CanSignal& signal, const CanMessage& message)
25 return bitfield_parse_float(message->data, CAN_MESSAGE_SIZE,
26 signal->bitPosition, signal->bitSize, signal->factor,
30 openxc_DynamicField decoder_t::noopDecoder(const CanSignal& signal,
31 const CanSignal& signals, float value, bool* send)
33 decoded_value = { .has_type = true,
34 .type = openxc_DynamicField_Type_NUM,
35 .has_numeric_value = true,
36 .numeric_value = value };
40 openxc_DynamicField decoder_t::booleanDecoder(const CanSignal& signal,
41 const CanSignal& signals, float value, bool* send)
43 decoded_value = { .has_type = true,
44 .type = openxc_DynamicField_Type_BOOL,
45 .has_boolean_value = true,
46 .numeric_value = value == 0.0 ? false : true };
50 openxc_DynamicField decoder_t::ignoreDecoder(const CanSignal& signal,
51 const CanSignal& signals, float value, bool* send)
56 openxc_DynamicField decoded_value = {0};
60 openxc_DynamicField decoder_t::stateDecoder(const CanSignal& signal,
61 const CanSignal& signals, float value, bool* send)
63 openxc_DynamicField decoded_value = {0};
64 decoded_value.has_type = true;
65 decoded_value.type = openxc_DynamicField_Type_STRING;
66 decoded_value.has_string_value = true;
68 const CanSignalState* signalState = lookupSignalState(value, signal);
69 if(signalState != NULL) {
70 ::strcpy(decoded_value.string_value, signalState->name);
77 openxc_DynamicField decoder_t::decodeSignal(const CanSignal& signal,
78 float value, const CanSignal& signals, bool* send)
80 SignalDecoder decoder = signal->decoder == NULL ?
81 noopDecoder : signal->decoder;
82 openxc_DynamicField decoded_value = decoder(signal, signals,
87 openxc_DynamicField decoder_t::decodeSignal(const CanSignal& signal,
88 const CanMessage& message, const CanSignal& signals, bool* send) {
89 float value = parseSignalBitfield(signal, message);
90 return decodeSignal(signal, value, signals, send);