Lancaster University / BLE_API

Lancaster University's fork of the mbed BLE API. Lives on github, https://github.com/lancaster-university/BLE_API

Dependents:   microbit-dal microbit-dal microbit-ble-open microbit-dal ... more

Fork of BLE_API by Bluetooth Low Energy

ble/GapAdvertisingParams.h@898:319202fb0824, 2015-11-26 (annotated)

Committer:
rgrover1
Date:
Thu Nov 26 12:52:01 2015 +0000
Revision:
898:319202fb0824
Parent:
786:d6d7087d8377
Child:
906:8ddab3271c2f
Synchronized with git rev cb039a43

Author: Irit Arkin

New version



Based on the main repo's master version, with edits to the API.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 710:b2e1a2660ec2 1 /* mbed Microcontroller Library
rgrover1 710:b2e1a2660ec2 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 710:b2e1a2660ec2 3 *
rgrover1 710:b2e1a2660ec2 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 710:b2e1a2660ec2 5 * you may not use this file except in compliance with the License.
rgrover1 710:b2e1a2660ec2 6 * You may obtain a copy of the License at
rgrover1 710:b2e1a2660ec2 7 *
rgrover1 710:b2e1a2660ec2 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 710:b2e1a2660ec2 9 *
rgrover1 710:b2e1a2660ec2 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 710:b2e1a2660ec2 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 710:b2e1a2660ec2 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 710:b2e1a2660ec2 13 * See the License for the specific language governing permissions and
rgrover1 710:b2e1a2660ec2 14 * limitations under the License.
rgrover1 710:b2e1a2660ec2 15 */
rgrover1 710:b2e1a2660ec2 16
rgrover1 710:b2e1a2660ec2 17 #ifndef __GAP_ADVERTISING_PARAMS_H__
rgrover1 710:b2e1a2660ec2 18 #define __GAP_ADVERTISING_PARAMS_H__
rgrover1 710:b2e1a2660ec2 19
rgrover1 786:d6d7087d8377 20 /**
rgrover1 786:d6d7087d8377 21 * This class provides a wrapper for the core advertising parameters,
rgrover1 786:d6d7087d8377 22 * including the advertising type (Connectable Undirected,
rgrover1 898:319202fb0824 23 * Non Connectable Undirected and so on), as well as the advertising and
rgrover1 786:d6d7087d8377 24 * timeout intervals.
rgrover1 786:d6d7087d8377 25 */
rgrover1 710:b2e1a2660ec2 26 class GapAdvertisingParams {
rgrover1 710:b2e1a2660ec2 27 public:
rgrover1 710:b2e1a2660ec2 28 static const unsigned GAP_ADV_PARAMS_INTERVAL_MIN = 0x0020;
rgrover1 710:b2e1a2660ec2 29 static const unsigned GAP_ADV_PARAMS_INTERVAL_MIN_NONCON = 0x00A0;
rgrover1 710:b2e1a2660ec2 30 static const unsigned GAP_ADV_PARAMS_INTERVAL_MAX = 0x4000;
rgrover1 710:b2e1a2660ec2 31 static const unsigned GAP_ADV_PARAMS_TIMEOUT_MAX = 0x3FFF;
rgrover1 710:b2e1a2660ec2 32
rgrover1 710:b2e1a2660ec2 33 /*!
rgrover1 710:b2e1a2660ec2 34 * Encapsulates the peripheral advertising modes, which determine how
rgrover1 898:319202fb0824 35 * the device appears to other central devices in hearing range.
rgrover1 710:b2e1a2660ec2 36 */
rgrover1 710:b2e1a2660ec2 37 enum AdvertisingType_t {
rgrover1 710:b2e1a2660ec2 38 ADV_CONNECTABLE_UNDIRECTED, /**< Vol 3, Part C, Section 9.3.4 and Vol 6, Part B, Section 2.3.1.1 */
rgrover1 710:b2e1a2660ec2 39 ADV_CONNECTABLE_DIRECTED, /**< Vol 3, Part C, Section 9.3.3 and Vol 6, Part B, Section 2.3.1.2 */
rgrover1 710:b2e1a2660ec2 40 ADV_SCANNABLE_UNDIRECTED, /**< Include support for Scan Response payloads, see Vol 6, Part B, Section 2.3.1.4 */
rgrover1 710:b2e1a2660ec2 41 ADV_NON_CONNECTABLE_UNDIRECTED /**< Vol 3, Part C, Section 9.3.2 and Vol 6, Part B, Section 2.3.1.3 */
rgrover1 710:b2e1a2660ec2 42 };
rgrover1 898:319202fb0824 43 typedef enum AdvertisingType_t AdvertisingType; /* Deprecated type alias. */
rgrover1 710:b2e1a2660ec2 44
rgrover1 710:b2e1a2660ec2 45 public:
rgrover1 710:b2e1a2660ec2 46 GapAdvertisingParams(AdvertisingType_t advType = ADV_CONNECTABLE_UNDIRECTED,
rgrover1 710:b2e1a2660ec2 47 uint16_t interval = GAP_ADV_PARAMS_INTERVAL_MIN_NONCON,
rgrover1 710:b2e1a2660ec2 48 uint16_t timeout = 0) : _advType(advType), _interval(interval), _timeout(timeout) {
rgrover1 898:319202fb0824 49 /* Interval checks. */
rgrover1 710:b2e1a2660ec2 50 if (_advType == ADV_CONNECTABLE_DIRECTED) {
rgrover1 898:319202fb0824 51 /* Interval must be 0 in directed connectable mode. */
rgrover1 710:b2e1a2660ec2 52 _interval = 0;
rgrover1 710:b2e1a2660ec2 53 } else if (_advType == ADV_NON_CONNECTABLE_UNDIRECTED) {
rgrover1 898:319202fb0824 54 /* Min interval is slightly larger than in other modes. */
rgrover1 710:b2e1a2660ec2 55 if (_interval < GAP_ADV_PARAMS_INTERVAL_MIN_NONCON) {
rgrover1 710:b2e1a2660ec2 56 _interval = GAP_ADV_PARAMS_INTERVAL_MIN_NONCON;
rgrover1 710:b2e1a2660ec2 57 }
rgrover1 710:b2e1a2660ec2 58 if (_interval > GAP_ADV_PARAMS_INTERVAL_MAX) {
rgrover1 710:b2e1a2660ec2 59 _interval = GAP_ADV_PARAMS_INTERVAL_MAX;
rgrover1 710:b2e1a2660ec2 60 }
rgrover1 710:b2e1a2660ec2 61 } else {
rgrover1 898:319202fb0824 62 /* Stay within interval limits. */
rgrover1 710:b2e1a2660ec2 63 if (_interval < GAP_ADV_PARAMS_INTERVAL_MIN) {
rgrover1 710:b2e1a2660ec2 64 _interval = GAP_ADV_PARAMS_INTERVAL_MIN;
rgrover1 710:b2e1a2660ec2 65 }
rgrover1 710:b2e1a2660ec2 66 if (_interval > GAP_ADV_PARAMS_INTERVAL_MAX) {
rgrover1 710:b2e1a2660ec2 67 _interval = GAP_ADV_PARAMS_INTERVAL_MAX;
rgrover1 710:b2e1a2660ec2 68 }
rgrover1 710:b2e1a2660ec2 69 }
rgrover1 710:b2e1a2660ec2 70
rgrover1 898:319202fb0824 71 /* Timeout checks. */
rgrover1 710:b2e1a2660ec2 72 if (timeout) {
rgrover1 898:319202fb0824 73 /* Stay within timeout limits. */
rgrover1 710:b2e1a2660ec2 74 if (_timeout > GAP_ADV_PARAMS_TIMEOUT_MAX) {
rgrover1 710:b2e1a2660ec2 75 _timeout = GAP_ADV_PARAMS_TIMEOUT_MAX;
rgrover1 710:b2e1a2660ec2 76 }
rgrover1 710:b2e1a2660ec2 77 }
rgrover1 710:b2e1a2660ec2 78 }
rgrover1 710:b2e1a2660ec2 79
rgrover1 766:03f1a26f132f 80 static const uint16_t UNIT_0_625_MS = 625; /**< Number of microseconds in 0.625 milliseconds. */
rgrover1 766:03f1a26f132f 81 static uint16_t MSEC_TO_ADVERTISEMENT_DURATION_UNITS(uint32_t durationInMillis) {
rgrover1 766:03f1a26f132f 82 return (durationInMillis * 1000) / UNIT_0_625_MS;
rgrover1 766:03f1a26f132f 83 }
rgrover1 766:03f1a26f132f 84 static uint16_t ADVERTISEMENT_DURATION_UNITS_TO_MS(uint16_t gapUnits) {
rgrover1 766:03f1a26f132f 85 return (gapUnits * UNIT_0_625_MS) / 1000;
rgrover1 766:03f1a26f132f 86 }
rgrover1 766:03f1a26f132f 87
rgrover1 786:d6d7087d8377 88 AdvertisingType_t getAdvertisingType(void) const {
rgrover1 786:d6d7087d8377 89 return _advType;
rgrover1 786:d6d7087d8377 90 }
rgrover1 786:d6d7087d8377 91
rgrover1 786:d6d7087d8377 92 /**
rgrover1 898:319202fb0824 93 * @return the advertisement interval (in milliseconds).
rgrover1 786:d6d7087d8377 94 */
rgrover1 786:d6d7087d8377 95 uint16_t getInterval(void) const {
rgrover1 786:d6d7087d8377 96 return ADVERTISEMENT_DURATION_UNITS_TO_MS(_interval);
rgrover1 786:d6d7087d8377 97 }
rgrover1 786:d6d7087d8377 98
rgrover1 786:d6d7087d8377 99 /**
rgrover1 898:319202fb0824 100 * @return the advertisement interval in advertisement duration units (0.625ms units).
rgrover1 786:d6d7087d8377 101 */
rgrover1 786:d6d7087d8377 102 uint16_t getIntervalInADVUnits(void) const {
rgrover1 786:d6d7087d8377 103 return _interval;
rgrover1 786:d6d7087d8377 104 }
rgrover1 786:d6d7087d8377 105
rgrover1 786:d6d7087d8377 106 uint16_t getTimeout(void) const {
rgrover1 786:d6d7087d8377 107 return _timeout;
rgrover1 786:d6d7087d8377 108 }
rgrover1 710:b2e1a2660ec2 109
rgrover1 710:b2e1a2660ec2 110 void setAdvertisingType(AdvertisingType_t newAdvType) {_advType = newAdvType; }
rgrover1 786:d6d7087d8377 111 void setInterval(uint16_t newInterval) {_interval = MSEC_TO_ADVERTISEMENT_DURATION_UNITS(newInterval);}
rgrover1 710:b2e1a2660ec2 112 void setTimeout(uint16_t newTimeout) {_timeout = newTimeout; }
rgrover1 710:b2e1a2660ec2 113
rgrover1 710:b2e1a2660ec2 114 private:
rgrover1 710:b2e1a2660ec2 115 AdvertisingType_t _advType;
rgrover1 898:319202fb0824 116 uint16_t _interval; /* In ADV duration units (i.e. 0.625ms). */
rgrover1 898:319202fb0824 117 uint16_t _timeout; /* In seconds. */
rgrover1 710:b2e1a2660ec2 118 };
rgrover1 710:b2e1a2660ec2 119
rgrover1 710:b2e1a2660ec2 120 #endif // ifndef __GAP_ADVERTISING_PARAMS_H__