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Diffstat (limited to 'can-config-generator/src/main.cpp')
| -rw-r--r-- | can-config-generator/src/main.cpp | 398 |
1 files changed, 398 insertions, 0 deletions
diff --git a/can-config-generator/src/main.cpp b/can-config-generator/src/main.cpp new file mode 100644 index 00000000..cfefed84 --- /dev/null +++ b/can-config-generator/src/main.cpp @@ -0,0 +1,398 @@ +/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Loïc Collignon" <loic.collignon@iot.bzh>
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * Licensed 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 <unistd.h>
+#include <stdlib.h>
+#include <libgen.h>
+#include <exception>
+#include <fstream>
+#include <iostream>
+#include <string>
+#include <numeric>
+#include <iterator>
+#include <json.hpp>
+#include "openxc/message_set.hpp"
+
+#define EXIT_SUCCESS 0
+#define EXIT_UNKNOWN_ERROR 1
+#define EXIT_COMMAND_LINE_ERROR 2
+#define EXIT_PROGRAM_ERROR 3
+
+template <typename T>
+struct generator
+{
+ T v_;
+ std::string line_prefix_;
+ generator(T v, std::string line_prefix = "") : v_{v}, line_prefix_{line_prefix} {}
+};
+
+template <>
+struct generator<openxc::signal>
+{
+ const openxc::signal& v_;
+ std::uint32_t index_;
+ std::string line_prefix_;
+ generator(const openxc::signal& v, std::uint32_t index, std::string line_prefix = "")
+ : v_{v}, index_{index}, line_prefix_{line_prefix}
+ {
+ }
+};
+
+template <typename T>
+generator<T> gen(const T& v, std::string line_prefix = "") { return generator<T>(v, line_prefix); }
+
+generator<openxc::signal> gen(const openxc::signal& v, std::uint32_t index, std::string line_prefix = "")
+{
+ return generator<openxc::signal>(v, index, line_prefix);
+}
+
+template <typename T>
+std::ostream& operator<<(std::ostream& o, const generator<T>& v)
+{
+ o << v.line_prefix_ << v.v_;
+ return o;
+}
+
+template <>
+std::ostream& operator<<(std::ostream& o, const generator<bool>& v)
+{
+ o << v.line_prefix_ << (v.v_ ? "true" : "false");
+ return o;
+}
+
+template <>
+std::ostream& operator<<(std::ostream& o, const generator<float>& v)
+{
+ o << v.line_prefix_ << std::showpoint << v.v_ << "f";
+ return o;
+}
+
+template <>
+std::ostream& operator<<(std::ostream& o, const generator<std::string>& v)
+{
+ o << v.line_prefix_ << '\"' << v.v_ << '\"';
+ return o;
+}
+
+template <typename T>
+std::ostream& operator<<(std::ostream& o, const generator<std::vector<T>>& v)
+{
+ o << v.line_prefix_ << "{\n";
+ auto sz = v.v_.size();
+ for(const T& i : v.v_)
+ {
+ o << gen(i, v.line_prefix_ + '\t');
+ if (sz > 1) o << ",";
+ --sz;
+ o << '\n';
+ }
+ o << v.line_prefix_ << '}';
+ return o;
+}
+
+template <>
+std::ostream& operator<<(std::ostream& o, const generator<openxc::message_set>& v)
+{
+ o << v.line_prefix_
+ << '{'
+ << "0, "
+ << gen(v.v_.name()) << ", "
+ << v.v_.buses().size() << ", "
+ << v.v_.messages().size() << ", "
+ << std::accumulate(
+ std::begin(v.v_.messages()),
+ std::end(v.v_.messages()),
+ 0,
+ [](int sum, const openxc::can_message& p) { return sum + p.signals().size(); }
+ ) << ", "
+ << v.v_.commands().size() << ", "
+ << v.v_.diagnostic_messages().size() << "}";
+ return o;
+}
+
+template <>
+std::ostream& operator<<(std::ostream& o, const generator<openxc::can_message>& v)
+{
+ o << v.line_prefix_
+ << "can_message_definition_t("
+ << "0, "
+ << gen(v.v_.bus()) << ", "
+ << v.v_.id() << ", "
+ << "can_message_format_t::STANDARD, "
+ << "frequency_clock_t(" << gen(v.v_.max_frequency()) << "), "
+ << gen(v.v_.force_send_changed())
+ << ')';
+ return o;
+}
+
+template <>
+std::ostream& operator<<(std::ostream& o, const generator<std::map<std::string, std::vector<std::uint32_t>>>& v)
+{
+ o << v.line_prefix_ << "{\n";
+ std::uint32_t c1 = v.v_.size();
+ for(const auto& state : v.v_)
+ {
+ std::uint32_t c2 = state.second.size();
+ for(const auto& i : state.second)
+ {
+ o << v.line_prefix_ << "\t" << "{" << i << ", " << gen(state.first) << "}";
+ if (c1 > 1 || c2 > 1) o << ',';
+ o << '\n';
+ --c2;
+ }
+ --c1;
+ }
+ o << v.line_prefix_ << "}";
+ return o;
+}
+
+template <>
+std::ostream& operator<<(std::ostream& o, const generator<openxc::signal>& v)
+{
+ o << v.line_prefix_ << "{\n"
+ << v.line_prefix_ << "\t0,\n"
+ << v.line_prefix_ << "\t" << v.index_ << ",\n"
+ << v.line_prefix_ << "\t" << gen(v.v_.generic_name()) << ",\n"
+ << v.line_prefix_ << "\t" << v.v_.bit_position() << ",\n"
+ << v.line_prefix_ << "\t" << v.v_.bit_size() << ",\n"
+ << v.line_prefix_ << "\t" << gen(v.v_.factor()) << ", \n"
+ << v.line_prefix_ << "\t" << v.v_.offset() << ", \n"
+ << v.line_prefix_ << "\t" << "0,\n"
+ << v.line_prefix_ << "\t" << "0,\n"
+ << v.line_prefix_ << "\tfrequency_clock_t(" << gen(v.v_.max_frequency()) << "),\n"
+ << v.line_prefix_ << "\t" << gen(v.v_.send_same()) << ",\n"
+ << v.line_prefix_ << "\t" << gen(v.v_.force_send_changed()) << ",\n"
+ << gen(v.v_.states(), v.line_prefix_ + '\t') << ",\n"
+ << v.line_prefix_ << '\t' << gen(v.v_.writable()) << ",\n"
+ << v.line_prefix_ << '\t' << (v.v_.decoder().size() ? v.v_.decoder() : "nullptr") << ",\n"
+ << v.line_prefix_ << '\t' << (v.v_.encoder().size() ? v.v_.encoder() : "nullptr") << ",\n"
+ << v.line_prefix_ << '\t' << "false\n"
+ << v.line_prefix_ << "}";
+ return o;
+}
+
+template <>
+std::ostream& operator<<(std::ostream& o, const generator<openxc::diagnostic_message>& v)
+{
+ o << v.line_prefix_ << "{\n"
+ << v.line_prefix_ << "\t" << v.v_.pid() << ",\n"
+ << v.line_prefix_ << "\t" << gen(v.v_.name()) << ",\n"
+ << v.line_prefix_ << "\t" << 0 << ",\n"
+ << v.line_prefix_ << "\t" << 0 << ",\n"
+ << v.line_prefix_ << "\t" << "UNIT::INVALID" << ",\n"
+ << v.line_prefix_ << "\t" << gen(v.v_.frequency()) << ",\n"
+ << v.line_prefix_ << "\t" << (v.v_.decoder().size() ? v.v_.decoder() : "nullptr") << ",\n"
+ << v.line_prefix_ << "\t" << (v.v_.callback().size() ? v.v_.callback() : "nullptr") << ",\n"
+ << v.line_prefix_ << "\t" << "true" << "\n"
+ << v.line_prefix_ << "}";
+ return o;
+}
+
+/// @brief Generate the configuration code.
+/// @param[in] header Content to be inserted as a header.
+/// @param[in] footer Content to be inserted as a footer.
+/// @param[in] message_set Configuration read from the json file.
+/// @param[in] out Stream to write on.
+void generate(const std::string& header, const std::string& footer, const openxc::message_set& message_set, std::ostream& out)
+{
+ out << "#include \"configuration.hpp\"\n"
+ << "#include \"can/can-decoder.hpp\"\n\n";
+
+ if (header.size()) out << header << "\n";
+
+ out << "configuration_t::configuration_t()\n"
+ << " : can_message_set_{" << gen(message_set) << "}\n"
+ << " , can_message_definition_\n"
+ << " {\n"
+ << gen(message_set.messages(), "\t\t") << '\n'
+ << " }\n"
+ << " , can_signals_\n"
+ << " {\n";
+ std::uint32_t message_count = message_set.messages().size();
+ std::uint32_t index = 0;
+ for(const openxc::can_message& m : message_set.messages())
+ {
+ out << " {\n";
+ std::uint32_t signal_count = m.signals().size();
+ for(const openxc::signal& s : m.signals())
+ {
+ out << gen(s, index, " ");
+ if (signal_count > 1) out << ',';
+ --signal_count;
+ out << '\n';
+ }
+ out << " }";
+ if (index + 1 < message_count) out << ',';
+ ++index;
+ out << '\n';
+ }
+ out << " }\n"
+ << " , diagnostic_messages_\n"
+ << " {\n"
+ << gen(message_set.diagnostic_messages(), " ") << "\n"
+ << " }\n"
+ << "{\n"
+ << "}\n\n"
+ << "const std::string configuration_t::get_diagnostic_bus() const\n"
+ << "{\n";
+
+ std::string active_bus = "";
+ for (const auto& d : message_set.diagnostic_messages())
+ {
+ if (d.bus().size() == 0) std::cerr << "ERROR: The bus name should be set for each diagnostic message." << std::endl;
+ if (active_bus.size() == 0) active_bus = d.bus();
+ if (active_bus != d.bus()) std::cerr << "ERROR: The bus name should be the same for each diagnostic message." << std::endl;
+ }
+
+ out << " return " << gen(active_bus) << ";\n"
+ << "}\n\n";
+ out << footer << std::endl;
+}
+
+/// @brief Read whole file content to a string.
+/// @param[in] file Path to the file.
+/// @return A std::string which contains the file content. If @c file is an empty string, the return value is also empty.
+/// @exception std::runtime_error Throw this exception if the specified file is not found or cannot be opened.
+std::string read_file(const std::string& file)
+{
+ if(file.size() == 0) return std::string();
+
+ std::string content;
+ std::ifstream stream(file);
+ if (stream)
+ {
+ stream.seekg(0, std::ios::end);
+ content.reserve(stream.tellg());
+ stream.seekg(0, std::ios::beg);
+ content.assign((std::istreambuf_iterator<char>(stream)), std::istreambuf_iterator<char>());
+ return content;
+ }
+ std::stringstream ss;
+ ss << "The specified file (" << file << ") is not found!";
+ throw std::runtime_error(ss.str());
+}
+
+/// @brief Read whole file content as a json document.
+/// @param[in] file Path to the file.
+/// @return A @c nlohmann::json object.
+/// @exception std::runtime_error Throw this exception if the specified file is not found or cannot be opened.
+nlohmann::json read_json(const std::string& file)
+{
+ std::ifstream stream(file);
+ if (stream)
+ {
+ nlohmann::json result;
+ stream >> result;
+ return result;
+ }
+ std::stringstream ss;
+ ss << "The specified file (" << file << ") is not found!";
+ throw std::runtime_error(ss.str());
+}
+
+// function that show the help information
+void showhelpinfo(char *s)
+{
+std::cout<<"Usage: "<<s<<" <-m inpout.json> [-o configuration-generated.cpp]"<< std::endl;
+std::cout<<"option: "<<"-m input.json : JSON file describing CAN messages and signals"<< std::endl;
+std::cout<<" "<<"-h header.cpp : header source file insert at the beginning of generated file"<< std::endl;
+std::cout<<" "<<"-f footer.cpp : footer source file append to generated file."<< std::endl;
+std::cout<<" "<<"-o configuration-generated.cpp : output source file. Name has to be configuration-generated.cpp"<< std::endl;
+}
+
+/// @brief Entry point.
+/// @param[in] argc Argument's count.
+/// @param[in] argv Argument's array.
+/// @return Exit code, zero if success.
+int main(int argc, char *argv[])
+{
+ try
+ {
+ std::string appName = argv[0];
+ std::string message_set_file;
+ std::string output_file;
+ std::string header_file;
+ std::string footer_file;
+
+ char tmp;
+ /*if the program is ran witout options ,it will show the usgage and exit*/
+ if(argc == 1)
+ {
+ showhelpinfo(argv[0]);
+ exit(1);
+ }
+ /*use function getopt to get the arguments with option."hu:p:s:v" indicate
+ that option h,v are the options without arguments while u,p,s are the
+ options with arguments*/
+ while((tmp=getopt(argc,argv,"m:h:f:o:"))!=-1)
+ {
+ switch(tmp)
+ {
+ case 'h':
+ header_file = optarg;
+ break;
+ case 'f':
+ footer_file = optarg;
+ break;
+ case 'm':
+ message_set_file = optarg;
+ break;
+ case 'o':
+ output_file = optarg;
+ break;
+ default:
+ showhelpinfo(argv[0]);
+ break;
+ }
+ }
+
+ std::stringstream header;
+ header << read_file(header_file);
+
+ std::string footer = read_file(footer_file);
+ openxc::message_set message_set;
+ message_set.from_json(read_json(message_set_file));
+
+ std::string message_set_path = dirname(strdup(message_set_file.c_str()));
+ for(const auto& s : message_set.extra_sources())
+ {
+ std::string extra_source = s;
+ extra_source = message_set_path + "/" + extra_source;
+ header << "\n// >>>>> " << s << " >>>>>\n" << read_file(extra_source) << "\n// <<<<< " << s << " <<<<<\n";
+ }
+
+ std::ofstream out;
+ if (output_file.size())
+ {
+ out.open(output_file);
+ if(!out)
+ {
+ std::stringstream ss;
+ ss << "Can't open the ouput file (" << output_file << ") for writing!";
+ throw std::runtime_error(ss.str());
+ }
+ }
+ generate(header.str(), footer, message_set, output_file.size() ? out : std::cout);
+ }
+ catch (std::exception& e)
+ {
+ std::cerr << "ERROR: Unhandled exception - " << e.what() << std::endl;
+ return EXIT_UNKNOWN_ERROR;
+ }
+ return EXIT_SUCCESS;
+}
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