Michael Galis / nRF51822

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Fork of nRF51822 by Nordic Semiconductor

source/nRF5xServiceDiscovery.h@639:abe58b2a2b5d, 2017-02-26 (annotated)

Committer:
galism
Date:
Sun Feb 26 03:15:43 2017 +0000
Revision:
639:abe58b2a2b5d
Parent:
592:f9574772b816
Child:
631:e613866d34ba
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UserRevisionLine numberNew contents of line
vcoubard 544:9e3d053ad4ec 1 /* mbed Microcontroller Library
vcoubard 544:9e3d053ad4ec 2 * Copyright (c) 2006-2013 ARM Limited
vcoubard 544:9e3d053ad4ec 3 *
vcoubard 544:9e3d053ad4ec 4 * Licensed under the Apache License, Version 2.0 (the "License");
vcoubard 544:9e3d053ad4ec 5 * you may not use this file except in compliance with the License.
vcoubard 544:9e3d053ad4ec 6 * You may obtain a copy of the License at
vcoubard 544:9e3d053ad4ec 7 *
vcoubard 544:9e3d053ad4ec 8 * http://www.apache.org/licenses/LICENSE-2.0
vcoubard 544:9e3d053ad4ec 9 *
vcoubard 544:9e3d053ad4ec 10 * Unless required by applicable law or agreed to in writing, software
vcoubard 544:9e3d053ad4ec 11 * distributed under the License is distributed on an "AS IS" BASIS,
vcoubard 544:9e3d053ad4ec 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vcoubard 544:9e3d053ad4ec 13 * See the License for the specific language governing permissions and
vcoubard 544:9e3d053ad4ec 14 * limitations under the License.
vcoubard 544:9e3d053ad4ec 15 */
vcoubard 544:9e3d053ad4ec 16
vcoubard 544:9e3d053ad4ec 17 #ifndef __NRF_SERVICE_DISCOVERY_H__
vcoubard 544:9e3d053ad4ec 18 #define __NRF_SERVICE_DISCOVERY_H__
vcoubard 544:9e3d053ad4ec 19
vcoubard 544:9e3d053ad4ec 20 #include "ble/ServiceDiscovery.h"
vcoubard 544:9e3d053ad4ec 21 #include "ble/DiscoveredService.h"
vcoubard 544:9e3d053ad4ec 22 #include "nRF5xDiscoveredCharacteristic.h"
vcoubard 544:9e3d053ad4ec 23
vcoubard 544:9e3d053ad4ec 24 #include "ble.h"
vcoubard 544:9e3d053ad4ec 25 #include "ble_gattc.h"
vcoubard 544:9e3d053ad4ec 26
vcoubard 544:9e3d053ad4ec 27 class nRF5xGattClient; /* forward declaration */
vcoubard 544:9e3d053ad4ec 28
vcoubard 544:9e3d053ad4ec 29 class nRF5xServiceDiscovery : public ServiceDiscovery
vcoubard 544:9e3d053ad4ec 30 {
vcoubard 544:9e3d053ad4ec 31 public:
vcoubard 544:9e3d053ad4ec 32 static const uint16_t SRV_DISC_START_HANDLE = 0x0001; /**< The start handle value used during service discovery. */
vcoubard 544:9e3d053ad4ec 33 static const uint16_t SRV_DISC_END_HANDLE = 0xFFFF; /**< The end handle value used during service discovery. */
vcoubard 544:9e3d053ad4ec 34
vcoubard 544:9e3d053ad4ec 35 public:
vcoubard 544:9e3d053ad4ec 36 static const unsigned BLE_DB_DISCOVERY_MAX_SRV = 4; /**< Maximum number of services we can retain information for after a single discovery. */
vcoubard 544:9e3d053ad4ec 37 static const unsigned BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV = 4; /**< Maximum number of characteristics per service we can retain information for. */
vcoubard 544:9e3d053ad4ec 38
vcoubard 544:9e3d053ad4ec 39 public:
vcoubard 544:9e3d053ad4ec 40 nRF5xServiceDiscovery(nRF5xGattClient *gattcIn) :
vcoubard 544:9e3d053ad4ec 41 gattc(gattcIn),
vcoubard 544:9e3d053ad4ec 42 serviceIndex(0),
vcoubard 544:9e3d053ad4ec 43 numServices(0),
vcoubard 544:9e3d053ad4ec 44 numCharacteristics(0),
vcoubard 544:9e3d053ad4ec 45 state(INACTIVE),
vcoubard 544:9e3d053ad4ec 46 services(),
vcoubard 544:9e3d053ad4ec 47 characteristics(),
vcoubard 544:9e3d053ad4ec 48 serviceUUIDDiscoveryQueue(this),
vcoubard 544:9e3d053ad4ec 49 charUUIDDiscoveryQueue(this),
vcoubard 544:9e3d053ad4ec 50 onTerminationCallback(NULL) {
vcoubard 544:9e3d053ad4ec 51 /* empty */
vcoubard 544:9e3d053ad4ec 52 }
vcoubard 544:9e3d053ad4ec 53
vcoubard 544:9e3d053ad4ec 54 virtual ble_error_t launch(Gap::Handle_t connectionHandle,
vcoubard 544:9e3d053ad4ec 55 ServiceDiscovery::ServiceCallback_t sc,
vcoubard 544:9e3d053ad4ec 56 ServiceDiscovery::CharacteristicCallback_t cc,
vcoubard 544:9e3d053ad4ec 57 const UUID &matchingServiceUUIDIn,
vcoubard 544:9e3d053ad4ec 58 const UUID &matchingCharacteristicUUIDIn)
vcoubard 544:9e3d053ad4ec 59 {
vcoubard 544:9e3d053ad4ec 60 if (isActive()) {
vcoubard 544:9e3d053ad4ec 61 return BLE_ERROR_INVALID_STATE;
vcoubard 544:9e3d053ad4ec 62 }
vcoubard 544:9e3d053ad4ec 63
vcoubard 544:9e3d053ad4ec 64 serviceCallback = sc;
vcoubard 544:9e3d053ad4ec 65 characteristicCallback = cc;
vcoubard 544:9e3d053ad4ec 66 matchingServiceUUID = matchingServiceUUIDIn;
vcoubard 544:9e3d053ad4ec 67 matchingCharacteristicUUID = matchingCharacteristicUUIDIn;
vcoubard 544:9e3d053ad4ec 68
vcoubard 544:9e3d053ad4ec 69 serviceDiscoveryStarted(connectionHandle);
vcoubard 544:9e3d053ad4ec 70
vcoubard 544:9e3d053ad4ec 71 uint32_t rc;
vcoubard 544:9e3d053ad4ec 72 if ((rc = sd_ble_gattc_primary_services_discover(connectionHandle, SRV_DISC_START_HANDLE, NULL)) != NRF_SUCCESS) {
vcoubard 544:9e3d053ad4ec 73 terminate();
vcoubard 544:9e3d053ad4ec 74 switch (rc) {
vcoubard 544:9e3d053ad4ec 75 case NRF_ERROR_INVALID_PARAM:
vcoubard 544:9e3d053ad4ec 76 case BLE_ERROR_INVALID_CONN_HANDLE:
vcoubard 544:9e3d053ad4ec 77 return BLE_ERROR_INVALID_PARAM;
vcoubard 544:9e3d053ad4ec 78 case NRF_ERROR_BUSY:
vcoubard 544:9e3d053ad4ec 79 return BLE_STACK_BUSY;
vcoubard 544:9e3d053ad4ec 80 default:
vcoubard 544:9e3d053ad4ec 81 case NRF_ERROR_INVALID_STATE:
vcoubard 544:9e3d053ad4ec 82 return BLE_ERROR_INVALID_STATE;
vcoubard 544:9e3d053ad4ec 83 }
vcoubard 544:9e3d053ad4ec 84 }
vcoubard 544:9e3d053ad4ec 85
vcoubard 544:9e3d053ad4ec 86 return BLE_ERROR_NONE;
vcoubard 544:9e3d053ad4ec 87 }
vcoubard 544:9e3d053ad4ec 88
vcoubard 544:9e3d053ad4ec 89 virtual bool isActive(void) const {
vcoubard 544:9e3d053ad4ec 90 return state != INACTIVE;
vcoubard 544:9e3d053ad4ec 91 }
vcoubard 544:9e3d053ad4ec 92
vcoubard 544:9e3d053ad4ec 93 virtual void terminate(void) {
vcoubard 544:9e3d053ad4ec 94 terminateServiceDiscovery();
vcoubard 544:9e3d053ad4ec 95 }
vcoubard 544:9e3d053ad4ec 96
vcoubard 592:f9574772b816 97 void terminate(Gap::Handle_t connectionHandle) {
vcoubard 592:f9574772b816 98 if(connHandle == connectionHandle) {
vcoubard 592:f9574772b816 99 terminate();
vcoubard 592:f9574772b816 100 }
vcoubard 592:f9574772b816 101 }
vcoubard 592:f9574772b816 102
vcoubard 570:f162898cb6c4 103 virtual void onTermination(ServiceDiscovery::TerminationCallback_t callback) {
vcoubard 570:f162898cb6c4 104 onTerminationCallback = callback;
vcoubard 567:e1800bd55a9e 105 }
vcoubard 567:e1800bd55a9e 106
vcoubard 575:7023a8204a1b 107 /**
vcoubard 575:7023a8204a1b 108 * @brief Clear nRF5xServiceDiscovery's state.
vcoubard 575:7023a8204a1b 109 *
vcoubard 575:7023a8204a1b 110 * @return
vcoubard 575:7023a8204a1b 111 * BLE_ERROR_NONE if successful.
vcoubard 575:7023a8204a1b 112 */
vcoubard 575:7023a8204a1b 113 virtual ble_error_t reset(void) {
vcoubard 575:7023a8204a1b 114 /* Clear all state that is from the parent, including private members */
vcoubard 575:7023a8204a1b 115 if (ServiceDiscovery::reset() != BLE_ERROR_NONE) {
vcoubard 575:7023a8204a1b 116 return BLE_ERROR_INVALID_STATE;
vcoubard 575:7023a8204a1b 117 }
vcoubard 575:7023a8204a1b 118
vcoubard 575:7023a8204a1b 119 /* Clear derived class members */
vcoubard 575:7023a8204a1b 120 serviceIndex = 0;
vcoubard 575:7023a8204a1b 121 numServices = 0;
vcoubard 575:7023a8204a1b 122 numCharacteristics = 0;
vcoubard 575:7023a8204a1b 123
vcoubard 575:7023a8204a1b 124 state = INACTIVE;
vcoubard 575:7023a8204a1b 125
vcoubard 575:7023a8204a1b 126 serviceUUIDDiscoveryQueue.reset();
vcoubard 575:7023a8204a1b 127 charUUIDDiscoveryQueue.reset();
vcoubard 575:7023a8204a1b 128
vcoubard 575:7023a8204a1b 129 onTerminationCallback = NULL;
vcoubard 575:7023a8204a1b 130
vcoubard 575:7023a8204a1b 131 return BLE_ERROR_NONE;
vcoubard 575:7023a8204a1b 132 }
vcoubard 575:7023a8204a1b 133
vcoubard 544:9e3d053ad4ec 134 private:
vcoubard 544:9e3d053ad4ec 135 ble_error_t launchCharacteristicDiscovery(Gap::Handle_t connectionHandle, Gap::Handle_t startHandle, Gap::Handle_t endHandle);
vcoubard 544:9e3d053ad4ec 136
vcoubard 544:9e3d053ad4ec 137 private:
vcoubard 544:9e3d053ad4ec 138 void setupDiscoveredServices(const ble_gattc_evt_prim_srvc_disc_rsp_t *response);
vcoubard 544:9e3d053ad4ec 139 void setupDiscoveredCharacteristics(const ble_gattc_evt_char_disc_rsp_t *response);
vcoubard 544:9e3d053ad4ec 140
vcoubard 544:9e3d053ad4ec 141 void triggerServiceUUIDDiscovery(void);
vcoubard 544:9e3d053ad4ec 142 void processDiscoverUUIDResponse(const ble_gattc_evt_char_val_by_uuid_read_rsp_t *response);
vcoubard 544:9e3d053ad4ec 143 void removeFirstServiceNeedingUUIDDiscovery(void);
vcoubard 544:9e3d053ad4ec 144
vcoubard 544:9e3d053ad4ec 145 void terminateServiceDiscovery(void) {
vcoubard 592:f9574772b816 146 discoveredCharacteristic = nRF5xDiscoveredCharacteristic();
vcoubard 592:f9574772b816 147
vcoubard 544:9e3d053ad4ec 148 bool wasActive = isActive();
vcoubard 544:9e3d053ad4ec 149 state = INACTIVE;
vcoubard 544:9e3d053ad4ec 150
vcoubard 544:9e3d053ad4ec 151 if (wasActive && onTerminationCallback) {
vcoubard 544:9e3d053ad4ec 152 onTerminationCallback(connHandle);
vcoubard 544:9e3d053ad4ec 153 }
vcoubard 544:9e3d053ad4ec 154 }
vcoubard 544:9e3d053ad4ec 155
vcoubard 592:f9574772b816 156 void terminateCharacteristicDiscovery(ble_error_t err) {
vcoubard 544:9e3d053ad4ec 157 if (state == CHARACTERISTIC_DISCOVERY_ACTIVE) {
vcoubard 592:f9574772b816 158 if(discoveredCharacteristic != nRF5xDiscoveredCharacteristic()) {
vcoubard 592:f9574772b816 159 if(err == BLE_ERROR_NONE) {
vcoubard 592:f9574772b816 160 // fullfill the last characteristic
vcoubard 592:f9574772b816 161 discoveredCharacteristic.setLastHandle(services[serviceIndex].getEndHandle());
vcoubard 592:f9574772b816 162
vcoubard 592:f9574772b816 163 if ((matchingCharacteristicUUID == UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN)) ||
vcoubard 592:f9574772b816 164 ((matchingCharacteristicUUID == discoveredCharacteristic.getUUID()) &&
vcoubard 592:f9574772b816 165 (matchingServiceUUID != UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN)))) {
vcoubard 592:f9574772b816 166 if (characteristicCallback) {
vcoubard 592:f9574772b816 167 characteristicCallback(&discoveredCharacteristic);
vcoubard 592:f9574772b816 168 }
vcoubard 592:f9574772b816 169 }
vcoubard 592:f9574772b816 170 }
vcoubard 592:f9574772b816 171 discoveredCharacteristic = nRF5xDiscoveredCharacteristic();
vcoubard 592:f9574772b816 172 }
vcoubard 592:f9574772b816 173
vcoubard 544:9e3d053ad4ec 174 state = SERVICE_DISCOVERY_ACTIVE;
vcoubard 544:9e3d053ad4ec 175 }
vcoubard 544:9e3d053ad4ec 176 serviceIndex++; /* Progress service index to keep discovery alive. */
vcoubard 544:9e3d053ad4ec 177 }
vcoubard 544:9e3d053ad4ec 178
vcoubard 544:9e3d053ad4ec 179 private:
vcoubard 544:9e3d053ad4ec 180 void resetDiscoveredServices(void) {
vcoubard 544:9e3d053ad4ec 181 numServices = 0;
vcoubard 544:9e3d053ad4ec 182 serviceIndex = 0;
vcoubard 544:9e3d053ad4ec 183 }
vcoubard 544:9e3d053ad4ec 184
vcoubard 544:9e3d053ad4ec 185 void resetDiscoveredCharacteristics(void) {
vcoubard 544:9e3d053ad4ec 186 numCharacteristics = 0;
vcoubard 544:9e3d053ad4ec 187 }
vcoubard 544:9e3d053ad4ec 188
vcoubard 544:9e3d053ad4ec 189 private:
vcoubard 544:9e3d053ad4ec 190 void serviceDiscoveryStarted(Gap::Handle_t connectionHandle) {
vcoubard 544:9e3d053ad4ec 191 connHandle = connectionHandle;
vcoubard 544:9e3d053ad4ec 192 resetDiscoveredServices();
vcoubard 544:9e3d053ad4ec 193 state = SERVICE_DISCOVERY_ACTIVE;
vcoubard 544:9e3d053ad4ec 194 }
vcoubard 544:9e3d053ad4ec 195
vcoubard 544:9e3d053ad4ec 196 private:
vcoubard 544:9e3d053ad4ec 197 void characteristicDiscoveryStarted(Gap::Handle_t connectionHandle) {
vcoubard 544:9e3d053ad4ec 198 connHandle = connectionHandle;
vcoubard 544:9e3d053ad4ec 199 resetDiscoveredCharacteristics();
vcoubard 544:9e3d053ad4ec 200 state = CHARACTERISTIC_DISCOVERY_ACTIVE;
vcoubard 544:9e3d053ad4ec 201 }
vcoubard 544:9e3d053ad4ec 202
vcoubard 544:9e3d053ad4ec 203 private:
vcoubard 544:9e3d053ad4ec 204 /**
vcoubard 544:9e3d053ad4ec 205 * A datatype to contain service-indices for which long UUIDs need to be
vcoubard 544:9e3d053ad4ec 206 * discovered using read_val_by_uuid().
vcoubard 544:9e3d053ad4ec 207 */
vcoubard 544:9e3d053ad4ec 208 class ServiceUUIDDiscoveryQueue {
vcoubard 544:9e3d053ad4ec 209 public:
vcoubard 544:9e3d053ad4ec 210 ServiceUUIDDiscoveryQueue(nRF5xServiceDiscovery *parent) :
vcoubard 544:9e3d053ad4ec 211 numIndices(0),
vcoubard 544:9e3d053ad4ec 212 serviceIndices(),
vcoubard 544:9e3d053ad4ec 213 parentDiscoveryObject(parent) {
vcoubard 544:9e3d053ad4ec 214 /* empty */
vcoubard 544:9e3d053ad4ec 215 }
vcoubard 544:9e3d053ad4ec 216
vcoubard 544:9e3d053ad4ec 217 public:
vcoubard 544:9e3d053ad4ec 218 void reset(void) {
vcoubard 544:9e3d053ad4ec 219 numIndices = 0;
vcoubard 544:9e3d053ad4ec 220 for (unsigned i = 0; i < BLE_DB_DISCOVERY_MAX_SRV; i++) {
vcoubard 544:9e3d053ad4ec 221 serviceIndices[i] = INVALID_INDEX;
vcoubard 544:9e3d053ad4ec 222 }
vcoubard 544:9e3d053ad4ec 223 }
vcoubard 544:9e3d053ad4ec 224 void enqueue(int serviceIndex) {
vcoubard 544:9e3d053ad4ec 225 serviceIndices[numIndices++] = serviceIndex;
vcoubard 544:9e3d053ad4ec 226 }
vcoubard 544:9e3d053ad4ec 227 int dequeue(void) {
vcoubard 544:9e3d053ad4ec 228 if (numIndices == 0) {
vcoubard 544:9e3d053ad4ec 229 return INVALID_INDEX;
vcoubard 544:9e3d053ad4ec 230 }
vcoubard 544:9e3d053ad4ec 231
vcoubard 544:9e3d053ad4ec 232 unsigned valueToReturn = serviceIndices[0];
vcoubard 544:9e3d053ad4ec 233 numIndices--;
vcoubard 544:9e3d053ad4ec 234 for (unsigned i = 0; i < numIndices; i++) {
vcoubard 544:9e3d053ad4ec 235 serviceIndices[i] = serviceIndices[i + 1];
vcoubard 544:9e3d053ad4ec 236 }
vcoubard 544:9e3d053ad4ec 237
vcoubard 544:9e3d053ad4ec 238 return valueToReturn;
vcoubard 544:9e3d053ad4ec 239 }
vcoubard 544:9e3d053ad4ec 240 unsigned getFirst(void) const {
vcoubard 544:9e3d053ad4ec 241 return serviceIndices[0];
vcoubard 544:9e3d053ad4ec 242 }
vcoubard 544:9e3d053ad4ec 243 size_t getCount(void) const {
vcoubard 544:9e3d053ad4ec 244 return numIndices;
vcoubard 544:9e3d053ad4ec 245 }
vcoubard 544:9e3d053ad4ec 246
vcoubard 544:9e3d053ad4ec 247 /**
vcoubard 544:9e3d053ad4ec 248 * Trigger UUID discovery for the first of the enqueued ServiceIndices.
vcoubard 544:9e3d053ad4ec 249 */
vcoubard 544:9e3d053ad4ec 250 void triggerFirst(void);
vcoubard 544:9e3d053ad4ec 251
vcoubard 544:9e3d053ad4ec 252 private:
vcoubard 544:9e3d053ad4ec 253 static const int INVALID_INDEX = -1;
vcoubard 544:9e3d053ad4ec 254
vcoubard 544:9e3d053ad4ec 255 private:
vcoubard 544:9e3d053ad4ec 256 size_t numIndices;
vcoubard 544:9e3d053ad4ec 257 int serviceIndices[BLE_DB_DISCOVERY_MAX_SRV];
vcoubard 544:9e3d053ad4ec 258
vcoubard 544:9e3d053ad4ec 259 nRF5xServiceDiscovery *parentDiscoveryObject;
vcoubard 544:9e3d053ad4ec 260 };
vcoubard 544:9e3d053ad4ec 261 friend class ServiceUUIDDiscoveryQueue;
vcoubard 544:9e3d053ad4ec 262
vcoubard 544:9e3d053ad4ec 263 /**
vcoubard 544:9e3d053ad4ec 264 * A datatype to contain characteristic-indices for which long UUIDs need to
vcoubard 544:9e3d053ad4ec 265 * be discovered using read_val_by_uuid().
vcoubard 544:9e3d053ad4ec 266 */
vcoubard 544:9e3d053ad4ec 267 class CharUUIDDiscoveryQueue {
vcoubard 544:9e3d053ad4ec 268 public:
vcoubard 544:9e3d053ad4ec 269 CharUUIDDiscoveryQueue(nRF5xServiceDiscovery *parent) :
vcoubard 544:9e3d053ad4ec 270 numIndices(0),
vcoubard 544:9e3d053ad4ec 271 charIndices(),
vcoubard 544:9e3d053ad4ec 272 parentDiscoveryObject(parent) {
vcoubard 544:9e3d053ad4ec 273 /* empty */
vcoubard 544:9e3d053ad4ec 274 }
vcoubard 544:9e3d053ad4ec 275
vcoubard 544:9e3d053ad4ec 276 public:
vcoubard 544:9e3d053ad4ec 277 void reset(void) {
vcoubard 544:9e3d053ad4ec 278 numIndices = 0;
vcoubard 544:9e3d053ad4ec 279 for (unsigned i = 0; i < BLE_DB_DISCOVERY_MAX_SRV; i++) {
vcoubard 544:9e3d053ad4ec 280 charIndices[i] = INVALID_INDEX;
vcoubard 544:9e3d053ad4ec 281 }
vcoubard 544:9e3d053ad4ec 282 }
vcoubard 544:9e3d053ad4ec 283 void enqueue(int serviceIndex) {
vcoubard 544:9e3d053ad4ec 284 charIndices[numIndices++] = serviceIndex;
vcoubard 544:9e3d053ad4ec 285 }
vcoubard 544:9e3d053ad4ec 286 int dequeue(void) {
vcoubard 544:9e3d053ad4ec 287 if (numIndices == 0) {
vcoubard 544:9e3d053ad4ec 288 return INVALID_INDEX;
vcoubard 544:9e3d053ad4ec 289 }
vcoubard 544:9e3d053ad4ec 290
vcoubard 544:9e3d053ad4ec 291 unsigned valueToReturn = charIndices[0];
vcoubard 544:9e3d053ad4ec 292 numIndices--;
vcoubard 544:9e3d053ad4ec 293 for (unsigned i = 0; i < numIndices; i++) {
vcoubard 544:9e3d053ad4ec 294 charIndices[i] = charIndices[i + 1];
vcoubard 544:9e3d053ad4ec 295 }
vcoubard 544:9e3d053ad4ec 296
vcoubard 544:9e3d053ad4ec 297 return valueToReturn;
vcoubard 544:9e3d053ad4ec 298 }
vcoubard 544:9e3d053ad4ec 299 unsigned getFirst(void) const {
vcoubard 544:9e3d053ad4ec 300 return charIndices[0];
vcoubard 544:9e3d053ad4ec 301 }
vcoubard 544:9e3d053ad4ec 302 size_t getCount(void) const {
vcoubard 544:9e3d053ad4ec 303 return numIndices;
vcoubard 544:9e3d053ad4ec 304 }
vcoubard 544:9e3d053ad4ec 305
vcoubard 544:9e3d053ad4ec 306 /**
vcoubard 544:9e3d053ad4ec 307 * Trigger UUID discovery for the first of the enqueued charIndices.
vcoubard 544:9e3d053ad4ec 308 */
vcoubard 544:9e3d053ad4ec 309 void triggerFirst(void);
vcoubard 544:9e3d053ad4ec 310
vcoubard 544:9e3d053ad4ec 311 private:
vcoubard 544:9e3d053ad4ec 312 static const int INVALID_INDEX = -1;
vcoubard 544:9e3d053ad4ec 313
vcoubard 544:9e3d053ad4ec 314 private:
vcoubard 544:9e3d053ad4ec 315 size_t numIndices;
vcoubard 544:9e3d053ad4ec 316 int charIndices[BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV];
vcoubard 544:9e3d053ad4ec 317
vcoubard 544:9e3d053ad4ec 318 nRF5xServiceDiscovery *parentDiscoveryObject;
vcoubard 544:9e3d053ad4ec 319 };
vcoubard 544:9e3d053ad4ec 320 friend class CharUUIDDiscoveryQueue;
vcoubard 544:9e3d053ad4ec 321
vcoubard 544:9e3d053ad4ec 322 private:
vcoubard 544:9e3d053ad4ec 323 friend void bleGattcEventHandler(const ble_evt_t *p_ble_evt);
vcoubard 544:9e3d053ad4ec 324 void progressCharacteristicDiscovery(void);
vcoubard 544:9e3d053ad4ec 325 void progressServiceDiscovery(void);
vcoubard 544:9e3d053ad4ec 326
vcoubard 544:9e3d053ad4ec 327 private:
vcoubard 544:9e3d053ad4ec 328 nRF5xGattClient *gattc;
vcoubard 544:9e3d053ad4ec 329
vcoubard 544:9e3d053ad4ec 330 private:
vcoubard 544:9e3d053ad4ec 331 uint8_t serviceIndex; /**< Index of the current service being discovered. This is intended for internal use during service discovery.*/
vcoubard 544:9e3d053ad4ec 332 uint8_t numServices; /**< Number of services at the peers GATT database.*/
vcoubard 544:9e3d053ad4ec 333 uint8_t numCharacteristics; /**< Number of characteristics within the service.*/
vcoubard 544:9e3d053ad4ec 334
vcoubard 544:9e3d053ad4ec 335 enum State_t {
vcoubard 544:9e3d053ad4ec 336 INACTIVE,
vcoubard 544:9e3d053ad4ec 337 SERVICE_DISCOVERY_ACTIVE,
vcoubard 544:9e3d053ad4ec 338 CHARACTERISTIC_DISCOVERY_ACTIVE,
vcoubard 544:9e3d053ad4ec 339 DISCOVER_SERVICE_UUIDS,
vcoubard 544:9e3d053ad4ec 340 DISCOVER_CHARACTERISTIC_UUIDS,
vcoubard 544:9e3d053ad4ec 341 } state;
vcoubard 544:9e3d053ad4ec 342
vcoubard 544:9e3d053ad4ec 343 DiscoveredService services[BLE_DB_DISCOVERY_MAX_SRV]; /**< Information related to the current service being discovered.
vcoubard 544:9e3d053ad4ec 344 * This is intended for internal use during service discovery. */
vcoubard 544:9e3d053ad4ec 345 nRF5xDiscoveredCharacteristic characteristics[BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV];
vcoubard 544:9e3d053ad4ec 346
vcoubard 544:9e3d053ad4ec 347 ServiceUUIDDiscoveryQueue serviceUUIDDiscoveryQueue;
vcoubard 544:9e3d053ad4ec 348 CharUUIDDiscoveryQueue charUUIDDiscoveryQueue;
vcoubard 544:9e3d053ad4ec 349
vcoubard 544:9e3d053ad4ec 350 TerminationCallback_t onTerminationCallback;
vcoubard 592:f9574772b816 351
vcoubard 592:f9574772b816 352 /*
vcoubard 592:f9574772b816 353 * The currently discovered characteristic. Discovery of a characteristic
vcoubard 592:f9574772b816 354 * is a two phase process.
vcoubard 592:f9574772b816 355 * First, declaration handle is fetched, it provide the UUID, the value handle and
vcoubard 592:f9574772b816 356 * the properties of a characteristic.
vcoubard 592:f9574772b816 357 * Second, the next declaration handle is fetched, with its declaration handle, it is
vcoubard 592:f9574772b816 358 * possible to compute the last handle of the discovered characteristic and fill the
vcoubard 592:f9574772b816 359 * missing part of the object.
vcoubard 592:f9574772b816 360 * If there is no remaining characteristic to discover, the last handle of the
vcoubard 592:f9574772b816 361 * discovered characteristic will be set to the last handle of its enclosing service.
vcoubard 592:f9574772b816 362 */
vcoubard 592:f9574772b816 363 nRF5xDiscoveredCharacteristic discoveredCharacteristic;
vcoubard 544:9e3d053ad4ec 364 };
vcoubard 544:9e3d053ad4ec 365
rgrover1 388:db85a09c27ef 366 #endif /*__NRF_SERVICE_DISCOVERY_H__*/