Martin Cottrell / nRF51822

None

Dependencies:   nrf51-sdk

Dependents:   microbit-dal

Fork of nRF51822 by Lancaster University

btle/btle_discovery.h@280:cbaa4cb83548, 2015-06-19 (annotated)

Committer:
rgrover1
Date:
Fri Jun 19 15:55:26 2015 +0100
Revision:
280:cbaa4cb83548
Parent:
279:6e5e79f1fb61
Child:
284:29fb6af6671d
Synchronized with git rev 7a7b768e

Author: Rohit Grover

get onTerminationCallback invoked at the end of serviceDiscovery

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 239:693a1f145b5a 1 /* mbed Microcontroller Library
rgrover1 239:693a1f145b5a 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 239:693a1f145b5a 3 *
rgrover1 239:693a1f145b5a 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 239:693a1f145b5a 5 * you may not use this file except in compliance with the License.
rgrover1 239:693a1f145b5a 6 * You may obtain a copy of the License at
rgrover1 239:693a1f145b5a 7 *
rgrover1 239:693a1f145b5a 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 239:693a1f145b5a 9 *
rgrover1 239:693a1f145b5a 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 239:693a1f145b5a 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 239:693a1f145b5a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 239:693a1f145b5a 13 * See the License for the specific language governing permissions and
rgrover1 239:693a1f145b5a 14 * limitations under the License.
rgrover1 239:693a1f145b5a 15 */
rgrover1 239:693a1f145b5a 16
rgrover1 239:693a1f145b5a 17 #ifndef _BTLE_DISCOVERY_H_
rgrover1 239:693a1f145b5a 18 #define _BTLE_DISCOVERY_H_
rgrover1 239:693a1f145b5a 19
rgrover1 247:df37e7bb3f71 20 #include "ble.h"
rgrover1 263:d5da37e9a93b 21 #include "ServiceDiscovery.h"
rgrover1 247:df37e7bb3f71 22
rgrover1 247:df37e7bb3f71 23 void bleGattcEventHandler(const ble_evt_t *p_ble_evt);
rgrover1 239:693a1f145b5a 24
rgrover1 250:db3c51656388 25 class NordicServiceDiscovery : public ServiceDiscovery
rgrover1 250:db3c51656388 26 {
rgrover1 248:71ef03789dd3 27 public:
rgrover1 260:ea2798f615e5 28 static const uint16_t SRV_DISC_START_HANDLE = 0x0001; /**< The start handle value used during service discovery. */
rgrover1 260:ea2798f615e5 29
rgrover1 260:ea2798f615e5 30 private:
rgrover1 248:71ef03789dd3 31 static const unsigned BLE_DB_DISCOVERY_MAX_SRV = 4; /**< Maximum number of services we can retain information for after a single discovery. */
rgrover1 248:71ef03789dd3 32 static const unsigned BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV = 4; /**< Maximum number of characteristics per service we can retain information for. */
rgrover1 260:ea2798f615e5 33
rgrover1 260:ea2798f615e5 34 public:
rgrover1 260:ea2798f615e5 35 ble_error_t launchCharacteristicDiscovery(Gap::Handle_t connectionHandle, Gap::Handle_t startHandle, Gap::Handle_t endHandle);
rgrover1 239:693a1f145b5a 36
rgrover1 239:693a1f145b5a 37 public:
rgrover1 248:71ef03789dd3 38 void setupDiscoveredServices(const ble_gattc_evt_prim_srvc_disc_rsp_t *response);
rgrover1 248:71ef03789dd3 39 void setupDiscoveredCharacteristics(const ble_gattc_evt_char_disc_rsp_t *response);
rgrover1 248:71ef03789dd3 40
rgrover1 248:71ef03789dd3 41 void terminateServiceDiscovery(void) {
rgrover1 280:cbaa4cb83548 42 bool wasActive = isActive();
rgrover1 280:cbaa4cb83548 43
rgrover1 242:73fc02cc20b1 44 sDiscoveryActive = false;
rgrover1 248:71ef03789dd3 45 cDiscoveryActive = false;
rgrover1 280:cbaa4cb83548 46
rgrover1 280:cbaa4cb83548 47 if (wasActive && onTerminationCallback) {
rgrover1 280:cbaa4cb83548 48 onTerminationCallback(connHandle);
rgrover1 280:cbaa4cb83548 49 }
rgrover1 239:693a1f145b5a 50 }
rgrover1 239:693a1f145b5a 51
rgrover1 245:3abc61d38db3 52 void terminateCharacteristicDiscovery(void) {
rgrover1 245:3abc61d38db3 53 cDiscoveryActive = false;
rgrover1 245:3abc61d38db3 54 sDiscoveryActive = true;
rgrover1 245:3abc61d38db3 55 serviceIndex++; /* Progress service index to keep discovery alive. */
rgrover1 245:3abc61d38db3 56 }
rgrover1 245:3abc61d38db3 57
rgrover1 279:6e5e79f1fb61 58 bool isActive(void) const {
rgrover1 279:6e5e79f1fb61 59 return (sDiscoveryActive || cDiscoveryActive);
rgrover1 279:6e5e79f1fb61 60 }
rgrover1 279:6e5e79f1fb61 61
rgrover1 280:cbaa4cb83548 62 void setOnTermination(TerminationCallback_t callback) {
rgrover1 280:cbaa4cb83548 63 onTerminationCallback = callback;
rgrover1 280:cbaa4cb83548 64 }
rgrover1 280:cbaa4cb83548 65
rgrover1 260:ea2798f615e5 66 private:
rgrover1 239:693a1f145b5a 67 void resetDiscoveredServices(void) {
rgrover1 242:73fc02cc20b1 68 numServices = 0;
rgrover1 242:73fc02cc20b1 69 serviceIndex = 0;
rgrover1 239:693a1f145b5a 70 memset(services, 0, sizeof(DiscoveredService) * BLE_DB_DISCOVERY_MAX_SRV);
rgrover1 239:693a1f145b5a 71 }
rgrover1 239:693a1f145b5a 72
rgrover1 245:3abc61d38db3 73 void resetDiscoveredCharacteristics(void) {
rgrover1 245:3abc61d38db3 74 numCharacteristics = 0;
rgrover1 245:3abc61d38db3 75 characteristicIndex = 0;
rgrover1 245:3abc61d38db3 76 memset(characteristics, 0, sizeof(DiscoveredCharacteristic) * BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV);
rgrover1 245:3abc61d38db3 77 }
rgrover1 245:3abc61d38db3 78
rgrover1 245:3abc61d38db3 79 public:
rgrover1 243:a966506d1e5b 80 void serviceDiscoveryStarted(Gap::Handle_t connectionHandle) {
rgrover1 243:a966506d1e5b 81 connHandle = connectionHandle;
rgrover1 243:a966506d1e5b 82 resetDiscoveredServices();
rgrover1 243:a966506d1e5b 83 sDiscoveryActive = true;
rgrover1 243:a966506d1e5b 84 cDiscoveryActive = false;
rgrover1 243:a966506d1e5b 85 }
rgrover1 243:a966506d1e5b 86
rgrover1 260:ea2798f615e5 87 private:
rgrover1 245:3abc61d38db3 88 void characteristicDiscoveryStarted(Gap::Handle_t connectionHandle) {
rgrover1 245:3abc61d38db3 89 connHandle = connectionHandle;
rgrover1 245:3abc61d38db3 90 resetDiscoveredCharacteristics();
rgrover1 245:3abc61d38db3 91 cDiscoveryActive = true;
rgrover1 245:3abc61d38db3 92 sDiscoveryActive = false;
rgrover1 245:3abc61d38db3 93 }
rgrover1 245:3abc61d38db3 94
rgrover1 251:d4e0cf5e8751 95 private:
rgrover1 251:d4e0cf5e8751 96 friend void bleGattcEventHandler(const ble_evt_t *p_ble_evt);
rgrover1 251:d4e0cf5e8751 97 void progressCharacteristicDiscovery(void);
rgrover1 251:d4e0cf5e8751 98 void progressServiceDiscovery(void);
rgrover1 239:693a1f145b5a 99
rgrover1 248:71ef03789dd3 100 private:
rgrover1 248:71ef03789dd3 101 uint8_t serviceIndex; /**< Index of the current service being discovered. This is intended for internal use during service discovery.*/
rgrover1 248:71ef03789dd3 102 uint8_t numServices; /**< Number of services at the peers GATT database.*/
rgrover1 248:71ef03789dd3 103 uint8_t characteristicIndex; /**< Index of the current characteristic being discovered. This is intended for internal use during service discovery.*/
rgrover1 248:71ef03789dd3 104 uint8_t numCharacteristics; /**< Number of characteristics within the service.*/
rgrover1 248:71ef03789dd3 105
rgrover1 248:71ef03789dd3 106 bool sDiscoveryActive;
rgrover1 248:71ef03789dd3 107 bool cDiscoveryActive;
rgrover1 248:71ef03789dd3 108
rgrover1 248:71ef03789dd3 109 DiscoveredService services[BLE_DB_DISCOVERY_MAX_SRV]; /**< Information related to the current service being discovered.
rgrover1 248:71ef03789dd3 110 * This is intended for internal use during service discovery. */
rgrover1 248:71ef03789dd3 111 DiscoveredCharacteristic characteristics[BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV];
rgrover1 280:cbaa4cb83548 112
rgrover1 280:cbaa4cb83548 113 TerminationCallback_t onTerminationCallback;
rgrover1 240:75b69581d1dd 114 };
rgrover1 240:75b69581d1dd 115
rgrover1 239:693a1f145b5a 116 #endif /*_BTLE_DISCOVERY_H_*/