OnBoardLED.h

00001 /**
00002  * @file    LightResource.h
00003  * @brief   mbed CoAP Endpoint Light resource supporting CoAP GET and PUT
00004  * @author  Doug Anson, Michael Koster
00005  * @version 1.0
00006  * @see
00007  *
00008  * Copyright (c) 2014
00009  *
00010  * Licensed under the Apache License, Version 2.0 (the "License");
00011  * you may not use this file except in compliance with the License.
00012  * You may obtain a copy of the License at
00013  *
00014  *     http://www.apache.org/licenses/LICENSE-2.0
00015  *
00016  * Unless required by applicable law or agreed to in writing, software
00017  * distributed under the License is distributed on an "AS IS" BASIS,
00018  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00019  * See the License for the specific language governing permissions and
00020  * limitations under the License.
00021  */
00022 
00023 #ifndef __LED_RESOURCE_H__
00024 #define __LED_RESOURCE_H__
00025 
00026 
00027 // Base class
00028 #include "DynamicResource.h"
00029 
00030 // our Light
00031 DigitalOut LED_red(LED1);
00032 DigitalOut LED_green(LED2);
00033 DigitalOut LED_blue(LED3);
00034 
00035 static char * LED_color_value = {"0000000"}; //RRGGBBII
00036 
00037 void LED_set_color(char * color_string)
00038 {
00039     static uint8_t red, green, blue, index;
00040     int color_int;
00041 
00042     sscanf(color_string, "%X", &color_int);
00043     
00044     index = color_int & 255;
00045     blue = color_int >> 8 & 255;
00046     green = color_int >> 16 & 255;
00047     red = color_int >> 24 & 255;
00048         
00049     if(index == 0) {
00050         LED_red = !(red & 1);    
00051         LED_green = !(green & 1);    
00052         LED_blue = !(blue & 1);    
00053     }
00054 }
00055 
00056 /** LightResource class
00057  */
00058 class LEDResource : public DynamicResource
00059 {
00060 
00061 public:
00062     /**
00063     Default constructor
00064     @param logger input logger instance for this resource
00065     @param name input the Light resource name
00066     @param observable input the resource is Observable (default: FALSE)
00067     */
00068     LEDResource(const Logger *logger,const char *name,const bool observable = false) : DynamicResource(logger,name,"OnBoardLED",SN_GRS_GET_ALLOWED|SN_GRS_PUT_ALLOWED,observable) {
00069     LED_set_color("00000000");
00070     wait(0.5);
00071     LED_set_color("FF000000");
00072     wait(0.5);
00073     LED_set_color("00FF0000");
00074     wait(0.5);
00075     LED_set_color("0000FF00");
00076     wait(0.5);
00077     LED_set_color(LED_color_value);
00078     }
00079 
00080     /**
00081     Get the value of the LED
00082     @returns string containing the last setting
00083     */
00084     virtual string get() {
00085         return(LED_color_value);
00086     }
00087 
00088     /**
00089     Set the value of the LED
00090     @param string input the string containing the desired setting
00091     */
00092     virtual void put(const string value) {
00093         if( sizeof(value) == sizeof(LED_color_value) ){
00094             LED_color_value = (char *)value.c_str();
00095             LED_set_color(LED_color_value);
00096         }
00097     }
00098 };
00099 
00100 #endif // __LED_RESOURCE_H__