Wang Xinglu / BLE_API

High level Bluetooth Low Energy API and radio abstraction layer

Dependencies:   nRF51822

Dependents:   LinkNode_LIS3DH

Fork of BLE_API by Bluetooth Low Energy

public/GapScanningParams.h@526:caa67c3187a0, 2015-06-19 (annotated)

Committer:
rgrover1
Date:
Fri Jun 19 15:52:06 2015 +0100
Revision:
526:caa67c3187a0
Parent:
524:6e97ab392e2a
Child:
527:493185cebc03
Synchronized with git rev 9bcd7433

Author: Rohit Grover

Rename BLEDevice as BLE. Retain an alias to BLEDevice for the sake of compatibility with old code.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 379:b379d350aaab 1 /* mbed Microcontroller Library
rgrover1 379:b379d350aaab 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 379:b379d350aaab 3 *
rgrover1 379:b379d350aaab 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 379:b379d350aaab 5 * you may not use this file except in compliance with the License.
rgrover1 379:b379d350aaab 6 * You may obtain a copy of the License at
rgrover1 379:b379d350aaab 7 *
rgrover1 379:b379d350aaab 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 379:b379d350aaab 9 *
rgrover1 379:b379d350aaab 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 379:b379d350aaab 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 379:b379d350aaab 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 379:b379d350aaab 13 * See the License for the specific language governing permissions and
rgrover1 379:b379d350aaab 14 * limitations under the License.
rgrover1 379:b379d350aaab 15 */
rgrover1 379:b379d350aaab 16
rgrover1 379:b379d350aaab 17 #ifndef __GAP_SCANNING_PARAMS_H__
rgrover1 379:b379d350aaab 18 #define __GAP_SCANNING_PARAMS_H__
rgrover1 379:b379d350aaab 19
rgrover1 379:b379d350aaab 20 #include "Gap.h"
rgrover1 379:b379d350aaab 21
rgrover1 379:b379d350aaab 22 class GapScanningParams {
rgrover1 379:b379d350aaab 23 public:
rgrover1 379:b379d350aaab 24 static const unsigned SCAN_INTERVAL_MIN = 0x0004; /**< Minimum Scan interval in 625 us units, i.e. 2.5 ms. */
rgrover1 379:b379d350aaab 25 static const unsigned SCAN_INTERVAL_MAX = 0x4000; /**< Maximum Scan interval in 625 us units, i.e. 10.24 s. */
rgrover1 379:b379d350aaab 26 static const unsigned SCAN_WINDOW_MIN = 0x0004; /**< Minimum Scan window in 625 us units, i.e. 2.5 ms. */
rgrover1 379:b379d350aaab 27 static const unsigned SCAN_WINDOW_MAX = 0x4000; /**< Maximum Scan window in 625 us units, i.e. 10.24 s. */
rgrover1 379:b379d350aaab 28 static const unsigned SCAN_TIMEOUT_MIN = 0x0001; /**< Minimum Scan timeout in seconds. */
rgrover1 379:b379d350aaab 29 static const unsigned SCAN_TIMEOUT_MAX = 0xFFFF; /**< Maximum Scan timeout in seconds. */
rgrover1 379:b379d350aaab 30
rgrover1 379:b379d350aaab 31 public:
rgrover1 379:b379d350aaab 32 GapScanningParams(uint16_t interval = SCAN_INTERVAL_MAX,
rgrover1 379:b379d350aaab 33 uint16_t window = SCAN_WINDOW_MAX,
rgrover1 393:77d0399da8aa 34 uint16_t timeout = 0,
rgrover1 400:868801af787c 35 bool activeScanning = false) : _interval(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(interval)),
rgrover1 400:868801af787c 36 _window(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(window)),
rgrover1 400:868801af787c 37 _timeout(timeout),
rgrover1 400:868801af787c 38 _activeScanning(activeScanning) {
rgrover1 379:b379d350aaab 39 /* stay within limits */
rgrover1 379:b379d350aaab 40 if (_interval < SCAN_INTERVAL_MIN) {
rgrover1 379:b379d350aaab 41 _interval = SCAN_INTERVAL_MIN;
rgrover1 379:b379d350aaab 42 }
rgrover1 379:b379d350aaab 43 if (_interval > SCAN_INTERVAL_MAX) {
rgrover1 379:b379d350aaab 44 _interval = SCAN_INTERVAL_MAX;
rgrover1 379:b379d350aaab 45 }
rgrover1 386:d30591c3d39c 46 if (_window < SCAN_WINDOW_MIN) {
rgrover1 386:d30591c3d39c 47 _window = SCAN_WINDOW_MIN;
rgrover1 386:d30591c3d39c 48 }
rgrover1 386:d30591c3d39c 49 if (_window > SCAN_WINDOW_MAX) {
rgrover1 386:d30591c3d39c 50 _window = SCAN_WINDOW_MAX;
rgrover1 386:d30591c3d39c 51 }
rgrover1 379:b379d350aaab 52 }
rgrover1 379:b379d350aaab 53
rgrover1 400:868801af787c 54 ble_error_t setInterval(uint16_t newIntervalInMS) {
rgrover1 400:868801af787c 55 uint16_t newInterval = Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(newIntervalInMS);
rgrover1 386:d30591c3d39c 56 if ((newInterval >= SCAN_INTERVAL_MIN) && (newInterval < SCAN_INTERVAL_MAX)) {
rgrover1 386:d30591c3d39c 57 _interval = newInterval;
rgrover1 386:d30591c3d39c 58 return BLE_ERROR_NONE;
rgrover1 386:d30591c3d39c 59 }
rgrover1 386:d30591c3d39c 60
rgrover1 386:d30591c3d39c 61 return BLE_ERROR_PARAM_OUT_OF_RANGE;
rgrover1 386:d30591c3d39c 62 }
rgrover1 386:d30591c3d39c 63
rgrover1 400:868801af787c 64 ble_error_t setWindow(uint16_t newWindowInMS) {
rgrover1 400:868801af787c 65 uint16_t newWindow = Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(newWindowInMS);
rgrover1 386:d30591c3d39c 66 if ((newWindow >= SCAN_WINDOW_MIN) && (newWindow < SCAN_WINDOW_MAX)) {
rgrover1 386:d30591c3d39c 67 _window = newWindow;
rgrover1 386:d30591c3d39c 68 return BLE_ERROR_NONE;
rgrover1 386:d30591c3d39c 69 }
rgrover1 386:d30591c3d39c 70
rgrover1 386:d30591c3d39c 71 return BLE_ERROR_PARAM_OUT_OF_RANGE;
rgrover1 386:d30591c3d39c 72 }
rgrover1 386:d30591c3d39c 73
rgrover1 386:d30591c3d39c 74 ble_error_t setTimeout(uint16_t newTimeout) {
rgrover1 416:8764654f61fc 75 _timeout = newTimeout;
rgrover1 416:8764654f61fc 76 return BLE_ERROR_NONE;
rgrover1 386:d30591c3d39c 77 }
rgrover1 379:b379d350aaab 78
rgrover1 393:77d0399da8aa 79 void setActiveScanning(bool activeScanning) {
rgrover1 393:77d0399da8aa 80 _activeScanning = activeScanning;
rgrover1 393:77d0399da8aa 81 }
rgrover1 393:77d0399da8aa 82
rgrover1 526:caa67c3187a0 83
rgrover1 400:868801af787c 84 /* @Note: The following return durations in units of 0.625 ms */
rgrover1 379:b379d350aaab 85 uint16_t getInterval(void) const {return _interval;}
rgrover1 379:b379d350aaab 86 uint16_t getWindow(void) const {return _window; }
rgrover1 400:868801af787c 87
rgrover1 379:b379d350aaab 88 uint16_t getTimeout(void) const {return _timeout; }
rgrover1 393:77d0399da8aa 89 bool getActiveScanning(void) const {return _activeScanning;}
rgrover1 379:b379d350aaab 90
rgrover1 379:b379d350aaab 91 private:
rgrover1 400:868801af787c 92 uint16_t _interval; /**< Scan interval in units of 625us (between 2.5ms to 10.24s). */
rgrover1 400:868801af787c 93 uint16_t _window; /**< Scan window in units of 625us (between 2.5ms to 10.24s). */
rgrover1 379:b379d350aaab 94 uint16_t _timeout; /**< Scan timeout between 0x0001 and 0xFFFF in seconds, 0x0000 disables timeout. */
rgrover1 393:77d0399da8aa 95 bool _activeScanning; /**< obtain not only the advertising data from the peer device, but also their scanResponse if possible. */
rgrover1 379:b379d350aaab 96
rgrover1 379:b379d350aaab 97 private:
rgrover1 379:b379d350aaab 98 /* disallow copy constructor */
rgrover1 379:b379d350aaab 99 GapScanningParams(const GapScanningParams &);
rgrover1 379:b379d350aaab 100 GapScanningParams& operator =(const GapScanningParams &in);
rgrover1 379:b379d350aaab 101 };
rgrover1 379:b379d350aaab 102
rgrover1 379:b379d350aaab 103 #endif // ifndef __GAP_SCANNING_PARAMS_H__