Productize / nRF51822

library for BLE_GAP_backpack

Dependencies:   nrf51-sdk

Fork of nRF51822 by Nordic Semiconductor

source/nRF5xServiceDiscovery.h@638:6307ad2949a7, 2016-11-02 (annotated)

Committer:
Siemen
Date:
Wed Nov 02 14:11:43 2016 +0000
Revision:
638:6307ad2949a7
Parent:
631:e613866d34ba 
bug fixed advertisement interval indication

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vcoubard 631:e613866d34ba 1 /* mbed Microcontroller Library
vcoubard 631:e613866d34ba 2 * Copyright (c) 2006-2013 ARM Limited
vcoubard 631:e613866d34ba 3 *
vcoubard 631:e613866d34ba 4 * Licensed under the Apache License, Version 2.0 (the "License");
vcoubard 631:e613866d34ba 5 * you may not use this file except in compliance with the License.
vcoubard 631:e613866d34ba 6 * You may obtain a copy of the License at
vcoubard 631:e613866d34ba 7 *
vcoubard 631:e613866d34ba 8 * http://www.apache.org/licenses/LICENSE-2.0
vcoubard 631:e613866d34ba 9 *
vcoubard 631:e613866d34ba 10 * Unless required by applicable law or agreed to in writing, software
vcoubard 631:e613866d34ba 11 * distributed under the License is distributed on an "AS IS" BASIS,
vcoubard 631:e613866d34ba 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vcoubard 631:e613866d34ba 13 * See the License for the specific language governing permissions and
vcoubard 631:e613866d34ba 14 * limitations under the License.
vcoubard 631:e613866d34ba 15 */
vcoubard 631:e613866d34ba 16
vcoubard 631:e613866d34ba 17 #ifndef __NRF_SERVICE_DISCOVERY_H__
vcoubard 631:e613866d34ba 18 #define __NRF_SERVICE_DISCOVERY_H__
vcoubard 631:e613866d34ba 19
vcoubard 631:e613866d34ba 20 #include "ble/ServiceDiscovery.h"
vcoubard 631:e613866d34ba 21 #include "ble/DiscoveredService.h"
vcoubard 631:e613866d34ba 22 #include "nRF5xDiscoveredCharacteristic.h"
vcoubard 631:e613866d34ba 23
vcoubard 631:e613866d34ba 24 #include "nrf_ble.h"
vcoubard 631:e613866d34ba 25 #include "ble_gattc.h"
vcoubard 631:e613866d34ba 26
vcoubard 631:e613866d34ba 27 class nRF5xGattClient; /* forward declaration */
vcoubard 631:e613866d34ba 28
vcoubard 631:e613866d34ba 29 class nRF5xServiceDiscovery : public ServiceDiscovery
vcoubard 631:e613866d34ba 30 {
vcoubard 631:e613866d34ba 31 public:
vcoubard 631:e613866d34ba 32 static const uint16_t SRV_DISC_START_HANDLE = 0x0001; /**< The start handle value used during service discovery. */
vcoubard 631:e613866d34ba 33 static const uint16_t SRV_DISC_END_HANDLE = 0xFFFF; /**< The end handle value used during service discovery. */
vcoubard 631:e613866d34ba 34
vcoubard 631:e613866d34ba 35 public:
vcoubard 631:e613866d34ba 36 static const unsigned BLE_DB_DISCOVERY_MAX_SRV = 4; /**< Maximum number of services we can retain information for after a single discovery. */
vcoubard 631:e613866d34ba 37 static const unsigned BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV = 4; /**< Maximum number of characteristics per service we can retain information for. */
vcoubard 631:e613866d34ba 38
vcoubard 631:e613866d34ba 39 public:
vcoubard 631:e613866d34ba 40 nRF5xServiceDiscovery(nRF5xGattClient *gattcIn) :
vcoubard 631:e613866d34ba 41 gattc(gattcIn),
vcoubard 631:e613866d34ba 42 serviceIndex(0),
vcoubard 631:e613866d34ba 43 numServices(0),
vcoubard 631:e613866d34ba 44 numCharacteristics(0),
vcoubard 631:e613866d34ba 45 state(INACTIVE),
vcoubard 631:e613866d34ba 46 services(),
vcoubard 631:e613866d34ba 47 characteristics(),
vcoubard 631:e613866d34ba 48 serviceUUIDDiscoveryQueue(this),
vcoubard 631:e613866d34ba 49 charUUIDDiscoveryQueue(this),
vcoubard 631:e613866d34ba 50 onTerminationCallback(NULL) {
vcoubard 631:e613866d34ba 51 /* empty */
vcoubard 631:e613866d34ba 52 }
vcoubard 631:e613866d34ba 53
vcoubard 631:e613866d34ba 54 virtual ble_error_t launch(Gap::Handle_t connectionHandle,
vcoubard 631:e613866d34ba 55 ServiceDiscovery::ServiceCallback_t sc,
vcoubard 631:e613866d34ba 56 ServiceDiscovery::CharacteristicCallback_t cc,
vcoubard 631:e613866d34ba 57 const UUID &matchingServiceUUIDIn,
vcoubard 631:e613866d34ba 58 const UUID &matchingCharacteristicUUIDIn)
vcoubard 631:e613866d34ba 59 {
vcoubard 631:e613866d34ba 60 if (isActive()) {
vcoubard 631:e613866d34ba 61 return BLE_ERROR_INVALID_STATE;
vcoubard 631:e613866d34ba 62 }
vcoubard 631:e613866d34ba 63
vcoubard 631:e613866d34ba 64 serviceCallback = sc;
vcoubard 631:e613866d34ba 65 characteristicCallback = cc;
vcoubard 631:e613866d34ba 66 matchingServiceUUID = matchingServiceUUIDIn;
vcoubard 631:e613866d34ba 67 matchingCharacteristicUUID = matchingCharacteristicUUIDIn;
vcoubard 631:e613866d34ba 68
vcoubard 631:e613866d34ba 69 serviceDiscoveryStarted(connectionHandle);
vcoubard 631:e613866d34ba 70
vcoubard 631:e613866d34ba 71 uint32_t rc;
vcoubard 631:e613866d34ba 72 if ((rc = sd_ble_gattc_primary_services_discover(connectionHandle, SRV_DISC_START_HANDLE, NULL)) != NRF_SUCCESS) {
vcoubard 631:e613866d34ba 73 terminate();
vcoubard 631:e613866d34ba 74 switch (rc) {
vcoubard 631:e613866d34ba 75 case NRF_ERROR_INVALID_PARAM:
vcoubard 631:e613866d34ba 76 case BLE_ERROR_INVALID_CONN_HANDLE:
vcoubard 631:e613866d34ba 77 return BLE_ERROR_INVALID_PARAM;
vcoubard 631:e613866d34ba 78 case NRF_ERROR_BUSY:
vcoubard 631:e613866d34ba 79 return BLE_STACK_BUSY;
vcoubard 631:e613866d34ba 80 default:
vcoubard 631:e613866d34ba 81 case NRF_ERROR_INVALID_STATE:
vcoubard 631:e613866d34ba 82 return BLE_ERROR_INVALID_STATE;
vcoubard 631:e613866d34ba 83 }
vcoubard 631:e613866d34ba 84 }
vcoubard 631:e613866d34ba 85
vcoubard 631:e613866d34ba 86 return BLE_ERROR_NONE;
vcoubard 631:e613866d34ba 87 }
vcoubard 631:e613866d34ba 88
vcoubard 631:e613866d34ba 89 virtual bool isActive(void) const {
vcoubard 631:e613866d34ba 90 return state != INACTIVE;
vcoubard 631:e613866d34ba 91 }
vcoubard 631:e613866d34ba 92
vcoubard 631:e613866d34ba 93 virtual void terminate(void) {
vcoubard 631:e613866d34ba 94 terminateServiceDiscovery();
vcoubard 631:e613866d34ba 95 }
vcoubard 631:e613866d34ba 96
vcoubard 631:e613866d34ba 97 void terminate(Gap::Handle_t connectionHandle) {
vcoubard 631:e613866d34ba 98 if(connHandle == connectionHandle) {
vcoubard 631:e613866d34ba 99 terminate();
vcoubard 631:e613866d34ba 100 }
vcoubard 631:e613866d34ba 101 }
vcoubard 631:e613866d34ba 102
vcoubard 631:e613866d34ba 103 virtual void onTermination(ServiceDiscovery::TerminationCallback_t callback) {
vcoubard 631:e613866d34ba 104 onTerminationCallback = callback;
vcoubard 631:e613866d34ba 105 }
vcoubard 631:e613866d34ba 106
vcoubard 631:e613866d34ba 107 /**
vcoubard 631:e613866d34ba 108 * @brief Clear nRF5xServiceDiscovery's state.
vcoubard 631:e613866d34ba 109 *
vcoubard 631:e613866d34ba 110 * @return
vcoubard 631:e613866d34ba 111 * BLE_ERROR_NONE if successful.
vcoubard 631:e613866d34ba 112 */
vcoubard 631:e613866d34ba 113 virtual ble_error_t reset(void) {
vcoubard 631:e613866d34ba 114 /* Clear all state that is from the parent, including private members */
vcoubard 631:e613866d34ba 115 if (ServiceDiscovery::reset() != BLE_ERROR_NONE) {
vcoubard 631:e613866d34ba 116 return BLE_ERROR_INVALID_STATE;
vcoubard 631:e613866d34ba 117 }
vcoubard 631:e613866d34ba 118
vcoubard 631:e613866d34ba 119 /* Clear derived class members */
vcoubard 631:e613866d34ba 120 serviceIndex = 0;
vcoubard 631:e613866d34ba 121 numServices = 0;
vcoubard 631:e613866d34ba 122 numCharacteristics = 0;
vcoubard 631:e613866d34ba 123
vcoubard 631:e613866d34ba 124 state = INACTIVE;
vcoubard 631:e613866d34ba 125
vcoubard 631:e613866d34ba 126 serviceUUIDDiscoveryQueue.reset();
vcoubard 631:e613866d34ba 127 charUUIDDiscoveryQueue.reset();
vcoubard 631:e613866d34ba 128
vcoubard 631:e613866d34ba 129 onTerminationCallback = NULL;
vcoubard 631:e613866d34ba 130
vcoubard 631:e613866d34ba 131 return BLE_ERROR_NONE;
vcoubard 631:e613866d34ba 132 }
vcoubard 631:e613866d34ba 133
vcoubard 631:e613866d34ba 134 private:
vcoubard 631:e613866d34ba 135 ble_error_t launchCharacteristicDiscovery(Gap::Handle_t connectionHandle, Gap::Handle_t startHandle, Gap::Handle_t endHandle);
vcoubard 631:e613866d34ba 136
vcoubard 631:e613866d34ba 137 private:
vcoubard 631:e613866d34ba 138 void setupDiscoveredServices(const ble_gattc_evt_prim_srvc_disc_rsp_t *response);
vcoubard 631:e613866d34ba 139 void setupDiscoveredCharacteristics(const ble_gattc_evt_char_disc_rsp_t *response);
vcoubard 631:e613866d34ba 140
vcoubard 631:e613866d34ba 141 void triggerServiceUUIDDiscovery(void);
vcoubard 631:e613866d34ba 142 void processDiscoverUUIDResponse(const ble_gattc_evt_char_val_by_uuid_read_rsp_t *response);
vcoubard 631:e613866d34ba 143 void removeFirstServiceNeedingUUIDDiscovery(void);
vcoubard 631:e613866d34ba 144
vcoubard 631:e613866d34ba 145 void terminateServiceDiscovery(void) {
vcoubard 631:e613866d34ba 146 discoveredCharacteristic = nRF5xDiscoveredCharacteristic();
vcoubard 631:e613866d34ba 147
vcoubard 631:e613866d34ba 148 bool wasActive = isActive();
vcoubard 631:e613866d34ba 149 state = INACTIVE;
vcoubard 631:e613866d34ba 150
vcoubard 631:e613866d34ba 151 if (wasActive && onTerminationCallback) {
vcoubard 631:e613866d34ba 152 onTerminationCallback(connHandle);
vcoubard 631:e613866d34ba 153 }
vcoubard 631:e613866d34ba 154 }
vcoubard 631:e613866d34ba 155
vcoubard 631:e613866d34ba 156 void terminateCharacteristicDiscovery(ble_error_t err) {
vcoubard 631:e613866d34ba 157 if (state == CHARACTERISTIC_DISCOVERY_ACTIVE) {
vcoubard 631:e613866d34ba 158 if(discoveredCharacteristic != nRF5xDiscoveredCharacteristic()) {
vcoubard 631:e613866d34ba 159 if(err == BLE_ERROR_NONE) {
vcoubard 631:e613866d34ba 160 // fullfill the last characteristic
vcoubard 631:e613866d34ba 161 discoveredCharacteristic.setLastHandle(services[serviceIndex].getEndHandle());
vcoubard 631:e613866d34ba 162
vcoubard 631:e613866d34ba 163 if ((matchingCharacteristicUUID == UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN)) ||
vcoubard 631:e613866d34ba 164 ((matchingCharacteristicUUID == discoveredCharacteristic.getUUID()) &&
vcoubard 631:e613866d34ba 165 (matchingServiceUUID != UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN)))) {
vcoubard 631:e613866d34ba 166 if (characteristicCallback) {
vcoubard 631:e613866d34ba 167 characteristicCallback(&discoveredCharacteristic);
vcoubard 631:e613866d34ba 168 }
vcoubard 631:e613866d34ba 169 }
vcoubard 631:e613866d34ba 170 }
vcoubard 631:e613866d34ba 171 discoveredCharacteristic = nRF5xDiscoveredCharacteristic();
vcoubard 631:e613866d34ba 172 }
vcoubard 631:e613866d34ba 173
vcoubard 631:e613866d34ba 174 state = SERVICE_DISCOVERY_ACTIVE;
vcoubard 631:e613866d34ba 175 }
vcoubard 631:e613866d34ba 176 serviceIndex++; /* Progress service index to keep discovery alive. */
vcoubard 631:e613866d34ba 177 }
vcoubard 631:e613866d34ba 178
vcoubard 631:e613866d34ba 179 private:
vcoubard 631:e613866d34ba 180 void resetDiscoveredServices(void) {
vcoubard 631:e613866d34ba 181 numServices = 0;
vcoubard 631:e613866d34ba 182 serviceIndex = 0;
vcoubard 631:e613866d34ba 183 }
vcoubard 631:e613866d34ba 184
vcoubard 631:e613866d34ba 185 void resetDiscoveredCharacteristics(void) {
vcoubard 631:e613866d34ba 186 numCharacteristics = 0;
vcoubard 631:e613866d34ba 187 }
vcoubard 631:e613866d34ba 188
vcoubard 631:e613866d34ba 189 private:
vcoubard 631:e613866d34ba 190 void serviceDiscoveryStarted(Gap::Handle_t connectionHandle) {
vcoubard 631:e613866d34ba 191 connHandle = connectionHandle;
vcoubard 631:e613866d34ba 192 resetDiscoveredServices();
vcoubard 631:e613866d34ba 193 state = SERVICE_DISCOVERY_ACTIVE;
vcoubard 631:e613866d34ba 194 }
vcoubard 631:e613866d34ba 195
vcoubard 631:e613866d34ba 196 private:
vcoubard 631:e613866d34ba 197 void characteristicDiscoveryStarted(Gap::Handle_t connectionHandle) {
vcoubard 631:e613866d34ba 198 connHandle = connectionHandle;
vcoubard 631:e613866d34ba 199 resetDiscoveredCharacteristics();
vcoubard 631:e613866d34ba 200 state = CHARACTERISTIC_DISCOVERY_ACTIVE;
vcoubard 631:e613866d34ba 201 }
vcoubard 631:e613866d34ba 202
vcoubard 631:e613866d34ba 203 private:
vcoubard 631:e613866d34ba 204 /**
vcoubard 631:e613866d34ba 205 * A datatype to contain service-indices for which long UUIDs need to be
vcoubard 631:e613866d34ba 206 * discovered using read_val_by_uuid().
vcoubard 631:e613866d34ba 207 */
vcoubard 631:e613866d34ba 208 class ServiceUUIDDiscoveryQueue {
vcoubard 631:e613866d34ba 209 public:
vcoubard 631:e613866d34ba 210 ServiceUUIDDiscoveryQueue(nRF5xServiceDiscovery *parent) :
vcoubard 631:e613866d34ba 211 numIndices(0),
vcoubard 631:e613866d34ba 212 serviceIndices(),
vcoubard 631:e613866d34ba 213 parentDiscoveryObject(parent) {
vcoubard 631:e613866d34ba 214 /* empty */
vcoubard 631:e613866d34ba 215 }
vcoubard 631:e613866d34ba 216
vcoubard 631:e613866d34ba 217 public:
vcoubard 631:e613866d34ba 218 void reset(void) {
vcoubard 631:e613866d34ba 219 numIndices = 0;
vcoubard 631:e613866d34ba 220 for (unsigned i = 0; i < BLE_DB_DISCOVERY_MAX_SRV; i++) {
vcoubard 631:e613866d34ba 221 serviceIndices[i] = INVALID_INDEX;
vcoubard 631:e613866d34ba 222 }
vcoubard 631:e613866d34ba 223 }
vcoubard 631:e613866d34ba 224 void enqueue(int serviceIndex) {
vcoubard 631:e613866d34ba 225 serviceIndices[numIndices++] = serviceIndex;
vcoubard 631:e613866d34ba 226 }
vcoubard 631:e613866d34ba 227 int dequeue(void) {
vcoubard 631:e613866d34ba 228 if (numIndices == 0) {
vcoubard 631:e613866d34ba 229 return INVALID_INDEX;
vcoubard 631:e613866d34ba 230 }
vcoubard 631:e613866d34ba 231
vcoubard 631:e613866d34ba 232 unsigned valueToReturn = serviceIndices[0];
vcoubard 631:e613866d34ba 233 numIndices--;
vcoubard 631:e613866d34ba 234 for (unsigned i = 0; i < numIndices; i++) {
vcoubard 631:e613866d34ba 235 serviceIndices[i] = serviceIndices[i + 1];
vcoubard 631:e613866d34ba 236 }
vcoubard 631:e613866d34ba 237
vcoubard 631:e613866d34ba 238 return valueToReturn;
vcoubard 631:e613866d34ba 239 }
vcoubard 631:e613866d34ba 240 unsigned getFirst(void) const {
vcoubard 631:e613866d34ba 241 return serviceIndices[0];
vcoubard 631:e613866d34ba 242 }
vcoubard 631:e613866d34ba 243 size_t getCount(void) const {
vcoubard 631:e613866d34ba 244 return numIndices;
vcoubard 631:e613866d34ba 245 }
vcoubard 631:e613866d34ba 246
vcoubard 631:e613866d34ba 247 /**
vcoubard 631:e613866d34ba 248 * Trigger UUID discovery for the first of the enqueued ServiceIndices.
vcoubard 631:e613866d34ba 249 */
vcoubard 631:e613866d34ba 250 void triggerFirst(void);
vcoubard 631:e613866d34ba 251
vcoubard 631:e613866d34ba 252 private:
vcoubard 631:e613866d34ba 253 static const int INVALID_INDEX = -1;
vcoubard 631:e613866d34ba 254
vcoubard 631:e613866d34ba 255 private:
vcoubard 631:e613866d34ba 256 size_t numIndices;
vcoubard 631:e613866d34ba 257 int serviceIndices[BLE_DB_DISCOVERY_MAX_SRV];
vcoubard 631:e613866d34ba 258
vcoubard 631:e613866d34ba 259 nRF5xServiceDiscovery *parentDiscoveryObject;
vcoubard 631:e613866d34ba 260 };
vcoubard 631:e613866d34ba 261 friend class ServiceUUIDDiscoveryQueue;
vcoubard 631:e613866d34ba 262
vcoubard 631:e613866d34ba 263 /**
vcoubard 631:e613866d34ba 264 * A datatype to contain characteristic-indices for which long UUIDs need to
vcoubard 631:e613866d34ba 265 * be discovered using read_val_by_uuid().
vcoubard 631:e613866d34ba 266 */
vcoubard 631:e613866d34ba 267 class CharUUIDDiscoveryQueue {
vcoubard 631:e613866d34ba 268 public:
vcoubard 631:e613866d34ba 269 CharUUIDDiscoveryQueue(nRF5xServiceDiscovery *parent) :
vcoubard 631:e613866d34ba 270 numIndices(0),
vcoubard 631:e613866d34ba 271 charIndices(),
vcoubard 631:e613866d34ba 272 parentDiscoveryObject(parent) {
vcoubard 631:e613866d34ba 273 /* empty */
vcoubard 631:e613866d34ba 274 }
vcoubard 631:e613866d34ba 275
vcoubard 631:e613866d34ba 276 public:
vcoubard 631:e613866d34ba 277 void reset(void) {
vcoubard 631:e613866d34ba 278 numIndices = 0;
vcoubard 631:e613866d34ba 279 for (unsigned i = 0; i < BLE_DB_DISCOVERY_MAX_SRV; i++) {
vcoubard 631:e613866d34ba 280 charIndices[i] = INVALID_INDEX;
vcoubard 631:e613866d34ba 281 }
vcoubard 631:e613866d34ba 282 }
vcoubard 631:e613866d34ba 283 void enqueue(int serviceIndex) {
vcoubard 631:e613866d34ba 284 charIndices[numIndices++] = serviceIndex;
vcoubard 631:e613866d34ba 285 }
vcoubard 631:e613866d34ba 286 int dequeue(void) {
vcoubard 631:e613866d34ba 287 if (numIndices == 0) {
vcoubard 631:e613866d34ba 288 return INVALID_INDEX;
vcoubard 631:e613866d34ba 289 }
vcoubard 631:e613866d34ba 290
vcoubard 631:e613866d34ba 291 unsigned valueToReturn = charIndices[0];
vcoubard 631:e613866d34ba 292 numIndices--;
vcoubard 631:e613866d34ba 293 for (unsigned i = 0; i < numIndices; i++) {
vcoubard 631:e613866d34ba 294 charIndices[i] = charIndices[i + 1];
vcoubard 631:e613866d34ba 295 }
vcoubard 631:e613866d34ba 296
vcoubard 631:e613866d34ba 297 return valueToReturn;
vcoubard 631:e613866d34ba 298 }
vcoubard 631:e613866d34ba 299 unsigned getFirst(void) const {
vcoubard 631:e613866d34ba 300 return charIndices[0];
vcoubard 631:e613866d34ba 301 }
vcoubard 631:e613866d34ba 302 size_t getCount(void) const {
vcoubard 631:e613866d34ba 303 return numIndices;
vcoubard 631:e613866d34ba 304 }
vcoubard 631:e613866d34ba 305
vcoubard 631:e613866d34ba 306 /**
vcoubard 631:e613866d34ba 307 * Trigger UUID discovery for the first of the enqueued charIndices.
vcoubard 631:e613866d34ba 308 */
vcoubard 631:e613866d34ba 309 void triggerFirst(void);
vcoubard 631:e613866d34ba 310
vcoubard 631:e613866d34ba 311 private:
vcoubard 631:e613866d34ba 312 static const int INVALID_INDEX = -1;
vcoubard 631:e613866d34ba 313
vcoubard 631:e613866d34ba 314 private:
vcoubard 631:e613866d34ba 315 size_t numIndices;
vcoubard 631:e613866d34ba 316 int charIndices[BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV];
vcoubard 631:e613866d34ba 317
vcoubard 631:e613866d34ba 318 nRF5xServiceDiscovery *parentDiscoveryObject;
vcoubard 631:e613866d34ba 319 };
vcoubard 631:e613866d34ba 320 friend class CharUUIDDiscoveryQueue;
vcoubard 631:e613866d34ba 321
vcoubard 631:e613866d34ba 322 private:
vcoubard 631:e613866d34ba 323 friend void bleGattcEventHandler(const ble_evt_t *p_ble_evt);
vcoubard 631:e613866d34ba 324 void progressCharacteristicDiscovery(void);
vcoubard 631:e613866d34ba 325 void progressServiceDiscovery(void);
vcoubard 631:e613866d34ba 326
vcoubard 631:e613866d34ba 327 private:
vcoubard 631:e613866d34ba 328 nRF5xGattClient *gattc;
vcoubard 631:e613866d34ba 329
vcoubard 631:e613866d34ba 330 private:
vcoubard 631:e613866d34ba 331 uint8_t serviceIndex; /**< Index of the current service being discovered. This is intended for internal use during service discovery.*/
vcoubard 631:e613866d34ba 332 uint8_t numServices; /**< Number of services at the peers GATT database.*/
vcoubard 631:e613866d34ba 333 uint8_t numCharacteristics; /**< Number of characteristics within the service.*/
vcoubard 631:e613866d34ba 334
vcoubard 631:e613866d34ba 335 enum State_t {
vcoubard 631:e613866d34ba 336 INACTIVE,
vcoubard 631:e613866d34ba 337 SERVICE_DISCOVERY_ACTIVE,
vcoubard 631:e613866d34ba 338 CHARACTERISTIC_DISCOVERY_ACTIVE,
vcoubard 631:e613866d34ba 339 DISCOVER_SERVICE_UUIDS,
vcoubard 631:e613866d34ba 340 DISCOVER_CHARACTERISTIC_UUIDS,
vcoubard 631:e613866d34ba 341 } state;
vcoubard 631:e613866d34ba 342
vcoubard 631:e613866d34ba 343 DiscoveredService services[BLE_DB_DISCOVERY_MAX_SRV]; /**< Information related to the current service being discovered.
vcoubard 631:e613866d34ba 344 * This is intended for internal use during service discovery. */
vcoubard 631:e613866d34ba 345 nRF5xDiscoveredCharacteristic characteristics[BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV];
vcoubard 631:e613866d34ba 346
vcoubard 631:e613866d34ba 347 ServiceUUIDDiscoveryQueue serviceUUIDDiscoveryQueue;
vcoubard 631:e613866d34ba 348 CharUUIDDiscoveryQueue charUUIDDiscoveryQueue;
vcoubard 631:e613866d34ba 349
vcoubard 631:e613866d34ba 350 TerminationCallback_t onTerminationCallback;
vcoubard 631:e613866d34ba 351
vcoubard 631:e613866d34ba 352 /*
vcoubard 631:e613866d34ba 353 * The currently discovered characteristic. Discovery of a characteristic
vcoubard 631:e613866d34ba 354 * is a two phase process.
vcoubard 631:e613866d34ba 355 * First, declaration handle is fetched, it provide the UUID, the value handle and
vcoubard 631:e613866d34ba 356 * the properties of a characteristic.
vcoubard 631:e613866d34ba 357 * Second, the next declaration handle is fetched, with its declaration handle, it is
vcoubard 631:e613866d34ba 358 * possible to compute the last handle of the discovered characteristic and fill the
vcoubard 631:e613866d34ba 359 * missing part of the object.
vcoubard 631:e613866d34ba 360 * If there is no remaining characteristic to discover, the last handle of the
vcoubard 631:e613866d34ba 361 * discovered characteristic will be set to the last handle of its enclosing service.
vcoubard 631:e613866d34ba 362 */
vcoubard 631:e613866d34ba 363 nRF5xDiscoveredCharacteristic discoveredCharacteristic;
vcoubard 631:e613866d34ba 364 };
vcoubard 631:e613866d34ba 365
rgrover1 388:db85a09c27ef 366 #endif /*__NRF_SERVICE_DISCOVERY_H__*/