Maxim Integrated / Mbed 2 deprecated MAXWSNENV_demo Featured

BTLE demo for MAXWSNENV.

Dependencies:   BLE_API BMP180 Si7020 mbed MaximBLE

Characteristic.h@2:6f76d6160601, 2016-08-18 (annotated)

Committer:
enginerd
Date:
Thu Aug 18 21:09:13 2016 +0000
Revision:
2:6f76d6160601
Parent:
0:f71931ae3db1 
Updated library versions.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kgills 0:f71931ae3db1 1 /*******************************************************************************
kgills 0:f71931ae3db1 2 * Copyright (C) 2015 Maxim Integrated Products, Inc., All Rights Reserved.
kgills 0:f71931ae3db1 3 *
kgills 0:f71931ae3db1 4 * Permission is hereby granted, free of charge, to any person obtaining a
kgills 0:f71931ae3db1 5 * copy of this software and associated documentation files (the "Software"),
kgills 0:f71931ae3db1 6 * to deal in the Software without restriction, including without limitation
kgills 0:f71931ae3db1 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
kgills 0:f71931ae3db1 8 * and/or sell copies of the Software, and to permit persons to whom the
kgills 0:f71931ae3db1 9 * Software is furnished to do so, subject to the following conditions:
kgills 0:f71931ae3db1 10 *
kgills 0:f71931ae3db1 11 * The above copyright notice and this permission notice shall be included
kgills 0:f71931ae3db1 12 * in all copies or substantial portions of the Software.
kgills 0:f71931ae3db1 13 *
kgills 0:f71931ae3db1 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
kgills 0:f71931ae3db1 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
kgills 0:f71931ae3db1 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
kgills 0:f71931ae3db1 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
kgills 0:f71931ae3db1 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
kgills 0:f71931ae3db1 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
kgills 0:f71931ae3db1 20 * OTHER DEALINGS IN THE SOFTWARE.
kgills 0:f71931ae3db1 21 *
kgills 0:f71931ae3db1 22 * Except as contained in this notice, the name of Maxim Integrated
kgills 0:f71931ae3db1 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
kgills 0:f71931ae3db1 24 * Products, Inc. Branding Policy.
kgills 0:f71931ae3db1 25 *
kgills 0:f71931ae3db1 26 * The mere transfer of this software does not imply any licenses
kgills 0:f71931ae3db1 27 * of trade secrets, proprietary technology, copyrights, patents,
kgills 0:f71931ae3db1 28 * trademarks, maskwork rights, or any other form of intellectual
kgills 0:f71931ae3db1 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
kgills 0:f71931ae3db1 30 * ownership rights.
kgills 0:f71931ae3db1 31 *******************************************************************************
kgills 0:f71931ae3db1 32 */
kgills 0:f71931ae3db1 33
kgills 0:f71931ae3db1 34 #ifndef __BLE_CHARACTERISTIC_H__
kgills 0:f71931ae3db1 35 #define __BLE_CHARACTERISTIC_H__
kgills 0:f71931ae3db1 36
kgills 0:f71931ae3db1 37 #include "mbed.h"
kgills 0:f71931ae3db1 38 #include "BLE.h"
kgills 0:f71931ae3db1 39
kgills 0:f71931ae3db1 40 /**
kgills 0:f71931ae3db1 41 * @class Characteristic
kgills 0:f71931ae3db1 42 * @brief Abstract characteristic class.
kgills 0:f71931ae3db1 43 * @details Implement sub class derived from this for custom characteristic.
kgills 0:f71931ae3db1 44 */
kgills 0:f71931ae3db1 45 class Characteristic
kgills 0:f71931ae3db1 46 {
kgills 0:f71931ae3db1 47 public:
kgills 0:f71931ae3db1 48
kgills 0:f71931ae3db1 49 static const unsigned TIMESTAMP_BYTES = 7;
kgills 0:f71931ae3db1 50
kgills 0:f71931ae3db1 51 virtual GattCharacteristic *getChar(void) = 0;
kgills 0:f71931ae3db1 52 virtual uint8_t getNumBytes(void) = 0;
kgills 0:f71931ae3db1 53 virtual uint8_t *getBytes(void) = 0;
kgills 0:f71931ae3db1 54
kgills 0:f71931ae3db1 55 protected:
kgills 0:f71931ae3db1 56
kgills 0:f71931ae3db1 57 // Convert time_t to the timestamp format
kgills 0:f71931ae3db1 58 static void date_time(time_t time, uint8_t *buf) {
kgills 0:f71931ae3db1 59 // Convert time_t to Year, Month, Day, Hour, Minute, Second
kgills 0:f71931ae3db1 60 struct tm ts = *localtime(&time);
kgills 0:f71931ae3db1 61
kgills 0:f71931ae3db1 62 buf[1] = ((ts.tm_year+1900) & 0xFF00) >> 8;
kgills 0:f71931ae3db1 63 buf[0] = (ts.tm_year+1900) & 0xFF;
kgills 0:f71931ae3db1 64
kgills 0:f71931ae3db1 65 buf[2] = (ts.tm_mon + 1) & 0xFF;
kgills 0:f71931ae3db1 66 buf[3] = ts.tm_mday & 0xFF;
kgills 0:f71931ae3db1 67 buf[4] = ts.tm_hour & 0xFF;
kgills 0:f71931ae3db1 68 buf[5] = ts.tm_min & 0xFF;
kgills 0:f71931ae3db1 69 buf[6] = ts.tm_sec & 0xFF;
kgills 0:f71931ae3db1 70 }
kgills 0:f71931ae3db1 71
kgills 0:f71931ae3db1 72 // Convert floating point numbers to IEEE-11073 32-bit float
kgills 0:f71931ae3db1 73 static uint32_t float_bytes(float _float, uint8_t exp) {
kgills 0:f71931ae3db1 74 // Calculate how much to adjust mantissa
kgills 0:f71931ae3db1 75 uint8_t exponent = 0xFF - exp + 1;
kgills 0:f71931ae3db1 76 while(exp > 0) {
kgills 0:f71931ae3db1 77 _float *=10;
kgills 0:f71931ae3db1 78 exp--;
kgills 0:f71931ae3db1 79 }
kgills 0:f71931ae3db1 80 uint32_t mantissa = (uint32_t)(_float);
kgills 0:f71931ae3db1 81 return (((uint32_t)exponent) << 24) | mantissa;
kgills 0:f71931ae3db1 82 }
kgills 0:f71931ae3db1 83 };
kgills 0:f71931ae3db1 84
kgills 0:f71931ae3db1 85 #endif /* #ifndef __BLE_CHARACTERISTIC_H__*/