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.
20 #include "../utils/socketcan-bcm.hpp"
27 event_filter_t() : frequency{NAN}, min{NAN}, max{NAN} {}
30 class low_can_subscription_t
36 std::string sig_name_;
37 std::string bus_name_;
39 uint8_t bit_position_; /*!< bitPosition_ - The starting bit of the signal in its CAN message (assuming
40 * non-inverted bit numbering, i.e. the most significant bit of
42 uint8_t bit_size_; /*!< bit_size_ - The width of the bit field in the CAN message. */
43 float factor_; /*!< factor_ - The final value will be multiplied by this factor. Use 1 if you
44 * don't need a factor. */
45 float offset_; /*!< offset_ - The final value will be added to this offset. Use 0 if you
46 * don't need an offset. */
49 struct event_filter_t event_filter_;
51 utils::socketcan_bcm_t socket_;
53 low_can_subscription_t();
54 low_can_subscription_t(struct event_filter_t event_filter);
55 low_can_subscription_t(const low_can_subscription_t& s) = delete;
56 low_can_subscription_t(low_can_subscription_t&& s);
58 low_can_subscription_t& operator=(const low_can_subscription_t& s);
59 explicit operator bool() const;
61 int get_index() const;
62 const std::string get_sig_name() const;
63 float get_frequency() const;
64 float get_min() const;
65 float get_max() const;
66 utils::socketcan_bcm_t& get_socket();
68 void set_frequency(float freq);
69 void set_min(float min);
70 void set_max(float max);
72 int create_rx_filter();
73 int create_rx_filter(const std::string& bus_name, const std::string& sig_name, uint32_t can_id, uint8_t bit_position, uint8_t bit_size, float factor, float offset);