Giovanni Bauermeister / nRF51822

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Dependencies:   nrf51-sdk

Dependents:  

Fork of nRF51822 by Lancaster University

source/nRF5xCharacteristicDescriptorDiscoverer.h@544:9e3d053ad4ec, 2016-01-11 (annotated)

Committer:
vcoubard
Date:
Mon Jan 11 10:19:04 2016 +0000
Revision:
544:9e3d053ad4ec
Parent:
543:53215259c0d2 
Synchronized with git rev dc2dfb0a

Author: Vincent Coubard

Add status parameter in terminateCharacteristicDiscovery function.

Fix terminate discovery (the replacement of the discovery was done after

the call to terminate).

When searching for a running discovery, dismiss results where the

characteristic is equal to the default characteristic value

Add Discovery::operator!=

Add support of DiscoveredCharacteristic last handle in the characteristic

discovery process

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vcoubard 542:1bf9c597f44f 1 /* mbed Microcontroller Library
vcoubard 542:1bf9c597f44f 2 * Copyright (c) 2006-2015 ARM Limited
vcoubard 542:1bf9c597f44f 3 *
vcoubard 542:1bf9c597f44f 4 * Licensed under the Apache License, Version 2.0 (the "License");
vcoubard 542:1bf9c597f44f 5 * you may not use this file except in compliance with the License.
vcoubard 542:1bf9c597f44f 6 * You may obtain a copy of the License at
vcoubard 542:1bf9c597f44f 7 *
vcoubard 542:1bf9c597f44f 8 * http://www.apache.org/licenses/LICENSE-2.0
vcoubard 542:1bf9c597f44f 9 *
vcoubard 542:1bf9c597f44f 10 * Unless required by applicable law or agreed to in writing, software
vcoubard 542:1bf9c597f44f 11 * distributed under the License is distributed on an "AS IS" BASIS,
vcoubard 542:1bf9c597f44f 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vcoubard 542:1bf9c597f44f 13 * See the License for the specific language governing permissions and
vcoubard 542:1bf9c597f44f 14 * limitations under the License.
vcoubard 542:1bf9c597f44f 15 */
vcoubard 542:1bf9c597f44f 16
vcoubard 542:1bf9c597f44f 17 #ifndef __NRF_CHARACTERISTIC_DESCRIPTOR_DISCOVERY_H__
vcoubard 542:1bf9c597f44f 18 #define __NRF_CHARACTERISTIC_DESCRIPTOR_DISCOVERY_H__
vcoubard 542:1bf9c597f44f 19
vcoubard 542:1bf9c597f44f 20 #include "ble/Gap.h"
vcoubard 542:1bf9c597f44f 21 #include "ble/DiscoveredCharacteristic.h"
vcoubard 542:1bf9c597f44f 22 #include "ble/CharacteristicDescriptorDiscovery.h"
vcoubard 542:1bf9c597f44f 23 #include "ble/GattClient.h"
vcoubard 542:1bf9c597f44f 24 #include "ble_gattc.h"
vcoubard 542:1bf9c597f44f 25
vcoubard 542:1bf9c597f44f 26 /**
vcoubard 542:1bf9c597f44f 27 * @brief Manage the discovery of Characteristic descriptors
vcoubard 542:1bf9c597f44f 28 * @details is a bridge beetween BLE API and nordic stack regarding Characteristic
vcoubard 542:1bf9c597f44f 29 * Descriptor discovery. The BLE API can launch, monitorate and ask for termination
vcoubard 542:1bf9c597f44f 30 * of a discovery. The nordic stack will provide new descriptors and indicate when
vcoubard 542:1bf9c597f44f 31 * the discovery is done
vcoubard 542:1bf9c597f44f 32 */
vcoubard 542:1bf9c597f44f 33 class nRF5xCharacteristicDescriptorDiscoverer
vcoubard 542:1bf9c597f44f 34 {
vcoubard 542:1bf9c597f44f 35 typedef CharacteristicDescriptorDiscovery::DiscoveryCallback_t DiscoveryCallback_t;
vcoubard 542:1bf9c597f44f 36 typedef CharacteristicDescriptorDiscovery::TerminationCallback_t TerminationCallback_t;
vcoubard 542:1bf9c597f44f 37
vcoubard 542:1bf9c597f44f 38 public:
vcoubard 542:1bf9c597f44f 39 nRF5xCharacteristicDescriptorDiscoverer(size_t concurrentConnectionsCount = 3);
vcoubard 542:1bf9c597f44f 40
vcoubard 542:1bf9c597f44f 41 ~nRF5xCharacteristicDescriptorDiscoverer();
vcoubard 542:1bf9c597f44f 42
vcoubard 542:1bf9c597f44f 43 /**
vcoubard 542:1bf9c597f44f 44 * Launch a new characteristic descriptor discovery for a given
vcoubard 542:1bf9c597f44f 45 * DiscoveredCharacteristic.
vcoubard 542:1bf9c597f44f 46 * @note: this will be called by BLE API side
vcoubard 542:1bf9c597f44f 47 */
vcoubard 542:1bf9c597f44f 48 ble_error_t launch(
vcoubard 542:1bf9c597f44f 49 const DiscoveredCharacteristic& characteristic,
vcoubard 542:1bf9c597f44f 50 const DiscoveryCallback_t& callback,
vcoubard 542:1bf9c597f44f 51 const TerminationCallback_t& terminationCallback
vcoubard 542:1bf9c597f44f 52 );
vcoubard 542:1bf9c597f44f 53
vcoubard 542:1bf9c597f44f 54 /**
vcoubard 542:1bf9c597f44f 55 * @brief indicate if a characteristic descriptor discovery is active for a
vcoubard 542:1bf9c597f44f 56 * given DiscoveredCharacteristic
vcoubard 542:1bf9c597f44f 57 * @note: this will be called by BLE API side
vcoubard 542:1bf9c597f44f 58 */
vcoubard 542:1bf9c597f44f 59 bool isActive(const DiscoveredCharacteristic& characteristic) const;
vcoubard 542:1bf9c597f44f 60
vcoubard 542:1bf9c597f44f 61 /**
vcoubard 542:1bf9c597f44f 62 * @brief reauest the termination of characteristic descriptor discovery
vcoubard 542:1bf9c597f44f 63 * for a give DiscoveredCharacteristic
vcoubard 542:1bf9c597f44f 64 * @note: this will be called by BLE API side
vcoubard 542:1bf9c597f44f 65 */
vcoubard 542:1bf9c597f44f 66 void requestTerminate(const DiscoveredCharacteristic& characteristic);
vcoubard 542:1bf9c597f44f 67
vcoubard 542:1bf9c597f44f 68 /**
vcoubard 542:1bf9c597f44f 69 * @brief process descriptors discovered from the nordic stack
vcoubard 542:1bf9c597f44f 70 */
vcoubard 542:1bf9c597f44f 71 void process(uint16_t handle, const ble_gattc_evt_desc_disc_rsp_t& descriptors);
vcoubard 542:1bf9c597f44f 72
vcoubard 542:1bf9c597f44f 73 /**
vcoubard 542:1bf9c597f44f 74 * @brief Called by the nordic stack when the discovery is over.
vcoubard 542:1bf9c597f44f 75 */
vcoubard 543:53215259c0d2 76 void terminate(uint16_t handle, ble_error_t err);
vcoubard 542:1bf9c597f44f 77
vcoubard 542:1bf9c597f44f 78 private:
vcoubard 542:1bf9c597f44f 79 nRF5xCharacteristicDescriptorDiscoverer(const nRF5xCharacteristicDescriptorDiscoverer&);
vcoubard 542:1bf9c597f44f 80 nRF5xCharacteristicDescriptorDiscoverer& operator=(const nRF5xCharacteristicDescriptorDiscoverer&);
vcoubard 542:1bf9c597f44f 81
vcoubard 542:1bf9c597f44f 82 struct Discovery {
vcoubard 542:1bf9c597f44f 83 Discovery() : characteristic(), onDiscovery(), onTerminate() { }
vcoubard 542:1bf9c597f44f 84
vcoubard 542:1bf9c597f44f 85 Discovery(const DiscoveredCharacteristic& c, const DiscoveryCallback_t& dCb, const TerminationCallback_t& tCb) :
vcoubard 542:1bf9c597f44f 86 characteristic(c),
vcoubard 542:1bf9c597f44f 87 onDiscovery(dCb),
vcoubard 542:1bf9c597f44f 88 onTerminate(tCb) {
vcoubard 542:1bf9c597f44f 89 }
vcoubard 542:1bf9c597f44f 90
vcoubard 542:1bf9c597f44f 91 DiscoveredCharacteristic characteristic;
vcoubard 542:1bf9c597f44f 92 DiscoveryCallback_t onDiscovery;
vcoubard 542:1bf9c597f44f 93 TerminationCallback_t onTerminate;
vcoubard 542:1bf9c597f44f 94
vcoubard 542:1bf9c597f44f 95 void process(GattAttribute::Handle_t handle, const UUID& uuid) {
vcoubard 542:1bf9c597f44f 96 CharacteristicDescriptorDiscovery::DiscoveryCallbackParams_t params = {
vcoubard 542:1bf9c597f44f 97 characteristic,
vcoubard 542:1bf9c597f44f 98 DiscoveredCharacteristicDescriptor(
vcoubard 542:1bf9c597f44f 99 characteristic.getGattClient(),
vcoubard 542:1bf9c597f44f 100 characteristic.getConnectionHandle(),
vcoubard 542:1bf9c597f44f 101 handle,
vcoubard 542:1bf9c597f44f 102 uuid
vcoubard 542:1bf9c597f44f 103 )
vcoubard 542:1bf9c597f44f 104 };
vcoubard 542:1bf9c597f44f 105 onDiscovery.call(&params);
vcoubard 542:1bf9c597f44f 106 }
vcoubard 542:1bf9c597f44f 107
vcoubard 543:53215259c0d2 108 void terminate(ble_error_t err) {
vcoubard 542:1bf9c597f44f 109 CharacteristicDescriptorDiscovery::TerminationCallbackParams_t params = {
vcoubard 543:53215259c0d2 110 characteristic,
vcoubard 543:53215259c0d2 111 err
vcoubard 542:1bf9c597f44f 112 };
vcoubard 542:1bf9c597f44f 113 onTerminate.call(&params);
vcoubard 542:1bf9c597f44f 114 }
vcoubard 542:1bf9c597f44f 115
vcoubard 542:1bf9c597f44f 116 friend bool operator==(const Discovery& lhs, const Discovery& rhs) {
vcoubard 542:1bf9c597f44f 117 return lhs.characteristic == rhs.characteristic &&
vcoubard 542:1bf9c597f44f 118 lhs.onDiscovery == rhs.onDiscovery &&
vcoubard 544:9e3d053ad4ec 119 lhs.onTerminate == rhs.onTerminate;
vcoubard 544:9e3d053ad4ec 120 }
vcoubard 544:9e3d053ad4ec 121
vcoubard 544:9e3d053ad4ec 122 friend bool operator!=(const Discovery& lhs, const Discovery& rhs) {
vcoubard 544:9e3d053ad4ec 123 return !(lhs == rhs);
vcoubard 542:1bf9c597f44f 124 }
vcoubard 542:1bf9c597f44f 125 };
vcoubard 542:1bf9c597f44f 126
vcoubard 542:1bf9c597f44f 127 Discovery* findRunningDiscovery(const DiscoveredCharacteristic& characteristic);
vcoubard 542:1bf9c597f44f 128 Discovery* findRunningDiscovery(const DiscoveredCharacteristic& characteristic) const;
vcoubard 542:1bf9c597f44f 129 Discovery* findRunningDiscovery(uint16_t handle);
vcoubard 542:1bf9c597f44f 130 void removeDiscovery(Discovery* discovery);
vcoubard 542:1bf9c597f44f 131 Discovery* getAvailableDiscoverySlot();
vcoubard 542:1bf9c597f44f 132 bool isConnectionInUse(uint16_t connHandle);
vcoubard 543:53215259c0d2 133 static ble_error_t gattc_descriptors_discover(uint16_t connection_handle, uint16_t start_handle, uint16_t end_handle);
vcoubard 543:53215259c0d2 134
vcoubard 542:1bf9c597f44f 135
vcoubard 542:1bf9c597f44f 136 size_t maximumConcurrentConnectionsCount;
vcoubard 542:1bf9c597f44f 137 Discovery *discoveryRunning;
vcoubard 542:1bf9c597f44f 138 };
vcoubard 542:1bf9c597f44f 139
vcoubard 542:1bf9c597f44f 140 #endif /*__NRF_CHARACTERISTIC_DESCRIPTOR_DISCOVERY_H__*/