![](/media/cache/profiles/DalekSelfie2.jpg.50x50_q85.jpg)
mbed based IoT Gateway More details http://blog.thiseldo.co.uk/wp-filez/IoTGateway.pdf
Dependencies: NetServices FatFileSystem csv_parser mbed MQTTClient RF12B DNSResolver SDFileSystem
Payloads/PayloadV2.h
- Committer:
- SomeRandomBloke
- Date:
- 2012-04-02
- Revision:
- 0:a29a0225f203
File content as of revision 0:a29a0225f203:
/** IoT Gateway RFM12B payload V2 format handling * * @author Andrew Lindsay * * @section LICENSE * * Copyright (c) 2012 Andrew Lindsay (andrew [at] thiseldo [dot] co [dot] uk) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @section DESCRIPTION * * */ #ifndef _PAYLOADV2_H #define _PAYLOADV2_H #include "mbed.h" #include "PayloadDef.h" #define V2_DATATYPE_BYTE 0 #define V2_DATATYPE_SHORT 1 #define V2_DATATYPE_LONG 2 #define V2_DATATYPE_STRING 3 /** V2 header definition */ typedef struct { uint8_t typeId; // Type and sensor ID high uint8_t id; // Sensor ID } __attribute__((packed)) payloadv2Header; /** Byte reading definition */ typedef struct { uint16_t type:4; // Type uint16_t id:12; // Sensor ID int8_t reading; // Reading } __attribute__((packed)) payloadv2ByteReading; /** Short reading definition */ typedef struct { uint16_t type:4; // Type uint16_t id:12; // Sensor ID int16_t reading; // Reading } __attribute__((packed)) payloadv2ShortReading; /** Long reading definition */ typedef struct { uint16_t type:4; // Type uint16_t id:12; // Sensor ID int32_t reading; // Reading } __attribute__((packed)) payloadv2LongReading; /** String reading definition */ typedef struct { uint16_t type:4; // Type uint16_t id:12; // Sensor ID int8_t length; // String length uint8_t str[1]; // First character or data } __attribute__((packed)) payloadv2StringReading; /** Class definition for Payload V2 format */ class PayloadV2: public PayloadDef { public: /** Default Constructor */ PayloadV2(); /** Alternative constructor for passing payload details * * @param pptr Pointer to payload data * @param plen Length of paylod data */ PayloadV2( uint8_t *pptr, short plen ); /** Get the number of readings in a payload * * @returns the number of readings found in payload so they can be read */ virtual short numReadings(); /** Get a single reading from the payload * * @param readingNum The number of the reading, starts from 0 upto number of readings in payload * @returns Integer representation of reading */ virtual int reading( short readingNum ); /** Get the sensor ID for the specified reading within the payload * * @param readingNum The number of the reading, starts from 0 upto number of readings in payload * @returns Integer representation of reading */ virtual short sensorId( short readingNum ); /* The next functions are extra to the PayloadV2 type */ /** Get the pointer to the specified reading within the payload * * @param readingNum The number of the reading, starts from 0 upto number of readings in payload * @returns Pointer to the reading */ uint8_t *readingPtr( short readingNum ); /** Get a single Byte reading from the payload * * @param readingNum The number of the reading, starts from 0 upto number of readings in payload * @returns Byte 8 bit Integer representation of reading */ int8_t readingByte( short readingNum ); /** Get a single short reading from the payload * * @param readingNum The number of the reading, starts from 0 upto number of readings in payload * @returns Short, 16 bit Integer representation of reading */ short readingShort( short readingNum ); /** Get a single Long reading from the payload * * @param readingNum The number of the reading, starts from 0 upto number of readings in payload * @returns Long 32bit Integer representation of reading */ int readingLong( short readingNum ); /** Get the type of the specified reading * * @param readingNum The number of the reading, starts from 0 upto number of readings in payload * @returns type of the reading, byte, short, long, string. */ short readingType( short readingNum ); }; #endif /* _PAYLOADV2_H */