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131 lines
4.2 KiB
C++
131 lines
4.2 KiB
C++
/* Copyright (c) 2016 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "jerryscript-mbed-util/logging.h"
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#include "jerryscript-mbed-library-registry/wrap_tools.h"
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#include "mbed.h"
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/**
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* DigitalOut#write (native JavaScript method)
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*
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* Writes a binary value to a DigitalOut.
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*
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* @param value 1 or 0, specifying whether the output pin is high or low,
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* respectively
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* @returns undefined, or an error if invalid arguments are provided.
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*/
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DECLARE_CLASS_FUNCTION(DigitalOut, write) {
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CHECK_ARGUMENT_COUNT(DigitalOut, write, (args_count == 1));
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CHECK_ARGUMENT_TYPE_ALWAYS(DigitalOut, write, 0, number);
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// Extract native DigitalOut pointer
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uintptr_t ptr_val;
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jerry_get_object_native_handle(this_obj, &ptr_val);
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DigitalOut* native_ptr = reinterpret_cast<DigitalOut*>(ptr_val);
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int arg0 = jerry_get_number_value(args[0]);
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native_ptr->write(arg0);
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return jerry_create_undefined();
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}
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/**
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* DigitalOut#read (native JavaScript method)
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*
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* Reads the current status of a DigitalOut
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*
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* @returns 1 if the pin is currently high, or 0 if the pin is currently low.
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*/
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DECLARE_CLASS_FUNCTION(DigitalOut, read) {
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CHECK_ARGUMENT_COUNT(DigitalOut, read, (args_count == 0));
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// Extract native DigitalOut pointer
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uintptr_t ptr_val;
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jerry_get_object_native_handle(this_obj, &ptr_val);
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DigitalOut* native_ptr = reinterpret_cast<DigitalOut*>(ptr_val);
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int result = native_ptr->read();
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return jerry_create_number(result);
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}
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/**
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* DigitalOut#is_connected (native JavaScript method)
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*
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* @returns 0 if the DigitalOut is set to NC, or 1 if it is connected to an
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* actual pin
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*/
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DECLARE_CLASS_FUNCTION(DigitalOut, is_connected) {
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CHECK_ARGUMENT_COUNT(DigitalOut, is_connected, (args_count == 0));
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// Extract native DigitalOut pointer
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uintptr_t ptr_val;
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jerry_get_object_native_handle(this_obj, &ptr_val);
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DigitalOut* native_ptr = reinterpret_cast<DigitalOut*>(ptr_val);
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int result = native_ptr->is_connected();
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return jerry_create_number(result);
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}
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/**
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* DigitalOut#destructor
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*
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* Called if/when the DigitalOut is GC'ed.
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*/
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void NAME_FOR_CLASS_NATIVE_DESTRUCTOR(DigitalOut)(const uintptr_t native_handle) {
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delete reinterpret_cast<DigitalOut*>(native_handle);
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}
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/**
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* DigitalOut (native JavaScript constructor)
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*
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* @param pin_name mbed pin to connect the DigitalOut to.
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* @param value (optional) Initial value of the DigitalOut.
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* @returns a JavaScript object representing a DigitalOut.
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*/
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DECLARE_CLASS_CONSTRUCTOR(DigitalOut) {
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CHECK_ARGUMENT_COUNT(DigitalOut, __constructor, (args_count == 1 || args_count == 2));
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CHECK_ARGUMENT_TYPE_ALWAYS(DigitalOut, __constructor, 0, number);
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CHECK_ARGUMENT_TYPE_ON_CONDITION(DigitalOut, __constructor, 1, number, (args_count == 2));
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uintptr_t native_ptr;
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// Call correct overload of DigitalOut::DigitalOut depending on the
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// arguments passed.
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PinName pin_name = PinName(jerry_get_number_value(args[0]));
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switch (args_count) {
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case 1:
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native_ptr = (uintptr_t) new DigitalOut(pin_name);
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break;
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case 2:
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int value = static_cast<int>(jerry_get_number_value(args[1]));
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native_ptr = (uintptr_t) new DigitalOut(pin_name, value);
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break;
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}
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// create the jerryscript object
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jerry_value_t js_object = jerry_create_object();
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jerry_set_object_native_handle(js_object, native_ptr, NAME_FOR_CLASS_NATIVE_DESTRUCTOR(DigitalOut));
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// attach methods
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ATTACH_CLASS_FUNCTION(js_object, DigitalOut, write);
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ATTACH_CLASS_FUNCTION(js_object, DigitalOut, read);
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ATTACH_CLASS_FUNCTION(js_object, DigitalOut, is_connected);
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return js_object;
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}
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