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‎.gitignore‎

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*.o
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*~

‎Makefile‎

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all:
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node-gyp configure build
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ut:
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node unit_test.js
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‎README.md‎

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Arduinojs
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=========
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4-
javascript for openFPGAdunino
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javascript wrapper for openFPGAdunino library
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Only support basic number argument for api. There is no string or structure support.
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Install the nodejs and nodejs-gyp:
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apt-get install nodejs
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npm install -g node-gyp
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Build the project:
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node-gyp configure build
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Test the project:
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node unit_test.js

‎binding.gyp‎

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{
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"targets": [
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{
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"target_name": "openfpgadunino",
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"sources": [ "openfpgadunino.cc" ]
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}
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]
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}

‎openfgpadunino.cc‎

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#define BUILDING_NODE_EXTENSION
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#include <string>
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#include <sstream>
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#include <map>
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#include <node.h>
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#include "simulation.h"
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using namespace v8;
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using namespace std;
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#define DEFINE_FUNCTION_HANDLE(fun_name) \
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Handle<Value> fun_name##_agent(const Arguments& args) {return agent(#fun_name, args);}
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#define GET_FUNCTION_HANDLE(fun_name) \
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fun_name##_agent
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#define DEFINE_FUNCTION(ret,function,arg) \
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{#ret,#function,#arg, (void*)function, GET_FUNCTION_HANDLE(function)}
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typedef struct table_t {
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string return_type;
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string name;
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string arg_list;
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void* addr;
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Handle<Value> (*call)(const Arguments&);
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} fun_table;
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fun_table TABLE_NULL = { "", "", "", NULL, NULL };
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extern fun_table table[];
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int parser_func_arg_count(string arg_list) {
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int i = 1;
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const char* arg = arg_list.c_str();
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if (arg_list.length() == 0)
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return 0;
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while (*arg != '\0') {
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if (*arg == ',')
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i++;
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arg++;
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}
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return i;
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}
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#define REGISTER int
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#define MAX_ARGC 8
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#define ARG(x) (arg[x])
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#define ARG0
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#define ARG1 ARG(0)
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#define ARG2 ARG1, ARG(1)
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#define ARG3 ARG2, ARG(2)
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#define ARG4 ARG3, ARG(3)
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#define ARG5 ARG4, ARG(4)
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#define ARG6 ARG5, ARG(5)
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#define ARG7 ARG6, ARG(6)
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#define ARG8 ARG7, ARG(7)
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typedef int (*FUNC0)(void);
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typedef int (*FUNC1)(REGISTER);
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typedef int (*FUNC2)(REGISTER, REGISTER);
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typedef int (*FUNC3)(REGISTER, REGISTER, REGISTER);
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typedef int (*FUNC4)(REGISTER, REGISTER, REGISTER, REGISTER);
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typedef int (*FUNC5)(REGISTER, REGISTER, REGISTER, REGISTER, REGISTER);
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typedef int (*FUNC6)(REGISTER, REGISTER, REGISTER, REGISTER, REGISTER,
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REGISTER);
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typedef int (*FUNC7)(REGISTER, REGISTER, REGISTER, REGISTER, REGISTER, REGISTER,
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REGISTER);
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typedef int (*FUNC8)(REGISTER, REGISTER, REGISTER, REGISTER, REGISTER, REGISTER,
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REGISTER, REGISTER);
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Handle<Value> agent(string name, const Arguments& args) {
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HandleScope scope;
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fun_table* table_p = table;
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void* func_address = NULL;
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int argc;
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REGISTER ret = 0;
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REGISTER arg[MAX_ARGC];
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while (table_p != &TABLE_NULL) {
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if (table_p->name == name) {
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func_address = table_p->addr;
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argc = parser_func_arg_count(table_p->arg_list);
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}
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table_p++;
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}
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if (func_address == NULL) {
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string message = "Wrong method name ";
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message+= name;
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ThrowException(Exception::TypeError(String::New(message.c_str())));
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return scope.Close(Undefined());
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}
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if (args.Length() != argc) {
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stringstream s;
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string message ="Wrong number of arguments need ";
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s << argc;
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message+= s.str();
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ThrowException(
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Exception::TypeError(String::New(message.c_str())));
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return scope.Close(Undefined());
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}
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for(int i=0; i< argc;i++) {
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if(!args[i]->IsNumber()) {
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stringstream s;
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string message ="Wrong arguments ";
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s << i;
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message+= s.str();
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ThrowException(Exception::TypeError(String::New(message.c_str())));
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return scope.Close(Undefined());
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}
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}
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for(int i=0; i< argc;i++)
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arg[i] = args[i]->NumberValue();
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switch (argc) {
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case 0:
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ret = ((FUNC0) func_address)(ARG0);
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break;
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case 1:
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ret = ((FUNC1) func_address)(ARG1);
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break;
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case 2:
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ret = ((FUNC2) func_address)(ARG2);
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break;
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case 3:
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ret = ((FUNC3) func_address)(ARG3);
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break;
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case 4:
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ret = ((FUNC4) func_address)(ARG4);
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break;
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case 5:
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ret = ((FUNC5) func_address)(ARG5);
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break;
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case 6:
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ret = ((FUNC6) func_address)(ARG6);
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break;
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case 7:
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ret = ((FUNC7) func_address)(ARG7);
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break;
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case 8:
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ret = ((FUNC8) func_address)(ARG8);
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break;
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default:
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break;
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}
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Local < Number > num = Number::New(ret);
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return scope.Close(num);
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}
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int add(int a, int b) {
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return a + b;
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}
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//Add handle
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DEFINE_FUNCTION_HANDLE(add);
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DEFINE_FUNCTION_HANDLE(led);
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DEFINE_FUNCTION_HANDLE(ioa);
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DEFINE_FUNCTION_HANDLE(iob);
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DEFINE_FUNCTION_HANDLE(sleep);
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//Add c function
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fun_table table[] = {
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DEFINE_FUNCTION(char,add,(char a, char b)),
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DEFINE_FUNCTION(void,led,(int id, char r, char g, char b)),
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DEFINE_FUNCTION(void,ioa,(int id, int value)),
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DEFINE_FUNCTION(void,iob,(int id, int value)),
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DEFINE_FUNCTION(unsigned int,sleep,(unsigned int seconds)),
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TABLE_NULL
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};
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//todo map<string, void*> fun_table;
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void Init(Handle<Object> exports) {
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fun_table* table_p = table;
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while (table_p != &TABLE_NULL) {
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exports->Set(String::NewSymbol(table_p->name.c_str()),
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FunctionTemplate::New(table_p->call)->GetFunction());
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table_p++;
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}
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//Add spetial case function whose parameter is not number
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}
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NODE_MODULE(openfpgadunino, Init)

‎simulation.h‎

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//Functionality: Initial the broad
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int init(void)
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{
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return 1;
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}
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//Functionality: Control the led
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//Argument:
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//id: The id of led can be 0-3
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//r: The red color of led
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//g: The greem color of led
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//b: The blue color of led
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void led(int id, char r, char g, char b)
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{
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}
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//Functionality: Control the IO port a
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//Argument:
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//id: use 0-26
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//value: Can be 1 or 0
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void ioa(int id, int value)
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{
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}
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//Functionality: Control the IO port b
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//Argument:
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//id: use 0-26
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//value: Can be 1 or 0
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void iob(int id, int value)
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{
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}
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//Functionality: print the string to the console
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//Argument:
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//format:output format string
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int print(const char* format, ...)
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{
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return 1;
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}
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//Functionality: Sleep for seconds
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//Argument:
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//seconds The seconds for sleeping
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//Functionality: Sleep for micro seconds
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//Argument:
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//usecods: The micro seconds for sleeping
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#endif /* LOPHILO_H_ */

‎unit_test.js‎

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var meteroi = require('./build/Release/meteroi');
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console.log( 'This should be eight:', meteroi.add(3,5));
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console.log( 'Sleep for 2 second');
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meteroi.sleep(2);
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console.log( 'Set ioa');
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meteroi.ioa(1,1);
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console.log( 'Set led');
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meteroi.led(1,255,255,255);

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