/ nRF51822

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Dependents:   Peripheral_1_serial_copy Peripheral_1_serial 151006_1st_Scenario_normal

Fork of nRF51822 by Nordic Semiconductor

btle/btle_discovery.cpp@306:76e2e7349319, 2015-06-19 (annotated)

Committer:
rgrover1
Date:
Fri Jun 19 15:55:29 2015 +0100
Revision:
306:76e2e7349319
Parent:
305:293634834813
Child:
311:5d5abc30e3a8
Synchronized with git rev 579beff9

Author: Rohit Grover

add CharUUIDDiscoveryQueue

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 243:a966506d1e5b 1 /* mbed Microcontroller Library
rgrover1 243:a966506d1e5b 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 243:a966506d1e5b 3 *
rgrover1 243:a966506d1e5b 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 243:a966506d1e5b 5 * you may not use this file except in compliance with the License.
rgrover1 243:a966506d1e5b 6 * You may obtain a copy of the License at
rgrover1 243:a966506d1e5b 7 *
rgrover1 243:a966506d1e5b 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 243:a966506d1e5b 9 *
rgrover1 243:a966506d1e5b 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 243:a966506d1e5b 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 243:a966506d1e5b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 243:a966506d1e5b 13 * See the License for the specific language governing permissions and
rgrover1 243:a966506d1e5b 14 * limitations under the License.
rgrover1 243:a966506d1e5b 15 */
rgrover1 243:a966506d1e5b 16
rgrover1 287:faa0dc7ae513 17 #include <stdio.h>
rgrover1 287:faa0dc7ae513 18
rgrover1 239:693a1f145b5a 19 #include "blecommon.h"
rgrover1 239:693a1f145b5a 20 #include "UUID.h"
rgrover1 239:693a1f145b5a 21 #include "Gap.h"
rgrover1 239:693a1f145b5a 22 #include "nrf_error.h"
rgrover1 239:693a1f145b5a 23 #include "btle_discovery.h"
rgrover1 239:693a1f145b5a 24 #include "ble_err.h"
rgrover1 243:a966506d1e5b 25
rgrover1 278:26e3f0ef1e14 26 static NordicServiceDiscovery sdSingleton;
rgrover1 239:693a1f145b5a 27
rgrover1 239:693a1f145b5a 28 ble_error_t
rgrover1 275:fd709cd8b1b2 29 ServiceDiscovery::launch(Gap::Handle_t connectionHandle,
rgrover1 275:fd709cd8b1b2 30 ServiceCallback_t sc,
rgrover1 275:fd709cd8b1b2 31 CharacteristicCallback_t cc,
rgrover1 275:fd709cd8b1b2 32 const UUID &matchingServiceUUIDIn,
rgrover1 275:fd709cd8b1b2 33 const UUID &matchingCharacteristicUUIDIn)
rgrover1 239:693a1f145b5a 34 {
rgrover1 281:2280bb1a9a9e 35 if (isActive()) {
rgrover1 281:2280bb1a9a9e 36 return BLE_ERROR_INVALID_STATE;
rgrover1 281:2280bb1a9a9e 37 }
rgrover1 281:2280bb1a9a9e 38
rgrover1 278:26e3f0ef1e14 39 sdSingleton.serviceCallback = sc;
rgrover1 278:26e3f0ef1e14 40 sdSingleton.characteristicCallback = cc;
rgrover1 278:26e3f0ef1e14 41 sdSingleton.matchingServiceUUID = matchingServiceUUIDIn;
rgrover1 278:26e3f0ef1e14 42 sdSingleton.matchingCharacteristicUUID = matchingCharacteristicUUIDIn;
rgrover1 273:8ada9e8111a3 43
rgrover1 278:26e3f0ef1e14 44 sdSingleton.serviceDiscoveryStarted(connectionHandle);
rgrover1 239:693a1f145b5a 45
rgrover1 239:693a1f145b5a 46 uint32_t rc;
rgrover1 248:71ef03789dd3 47 if ((rc = sd_ble_gattc_primary_services_discover(connectionHandle, NordicServiceDiscovery::SRV_DISC_START_HANDLE, NULL)) != NRF_SUCCESS) {
rgrover1 278:26e3f0ef1e14 48 sdSingleton.terminate();
rgrover1 239:693a1f145b5a 49 switch (rc) {
rgrover1 239:693a1f145b5a 50 case NRF_ERROR_INVALID_PARAM:
rgrover1 239:693a1f145b5a 51 case BLE_ERROR_INVALID_CONN_HANDLE:
rgrover1 239:693a1f145b5a 52 return BLE_ERROR_INVALID_PARAM;
rgrover1 239:693a1f145b5a 53 case NRF_ERROR_BUSY:
rgrover1 239:693a1f145b5a 54 return BLE_STACK_BUSY;
rgrover1 239:693a1f145b5a 55 default:
rgrover1 239:693a1f145b5a 56 case NRF_ERROR_INVALID_STATE:
rgrover1 239:693a1f145b5a 57 return BLE_ERROR_INVALID_STATE;
rgrover1 239:693a1f145b5a 58 }
rgrover1 239:693a1f145b5a 59 }
rgrover1 239:693a1f145b5a 60
rgrover1 239:693a1f145b5a 61 return BLE_ERROR_NONE;
rgrover1 239:693a1f145b5a 62 }
rgrover1 239:693a1f145b5a 63
rgrover1 248:71ef03789dd3 64 void
rgrover1 248:71ef03789dd3 65 ServiceDiscovery::terminate(void)
rgrover1 248:71ef03789dd3 66 {
rgrover1 278:26e3f0ef1e14 67 sdSingleton.terminateServiceDiscovery();
rgrover1 248:71ef03789dd3 68 }
rgrover1 248:71ef03789dd3 69
rgrover1 279:6e5e79f1fb61 70 bool
rgrover1 279:6e5e79f1fb61 71 ServiceDiscovery::isActive(void)
rgrover1 279:6e5e79f1fb61 72 {
rgrover1 279:6e5e79f1fb61 73 return sdSingleton.isActive();
rgrover1 279:6e5e79f1fb61 74 }
rgrover1 279:6e5e79f1fb61 75
rgrover1 280:cbaa4cb83548 76 void ServiceDiscovery::onTermination(TerminationCallback_t callback) {
rgrover1 280:cbaa4cb83548 77 sdSingleton.setOnTermination(callback);
rgrover1 280:cbaa4cb83548 78 }
rgrover1 280:cbaa4cb83548 79
rgrover1 243:a966506d1e5b 80 ble_error_t
rgrover1 252:4b3f294415f5 81 NordicServiceDiscovery::launchCharacteristicDiscovery(Gap::Handle_t connectionHandle,
rgrover1 252:4b3f294415f5 82 Gap::Handle_t startHandle,
rgrover1 252:4b3f294415f5 83 Gap::Handle_t endHandle)
rgrover1 252:4b3f294415f5 84 {
rgrover1 278:26e3f0ef1e14 85 sdSingleton.characteristicDiscoveryStarted(connectionHandle);
rgrover1 239:693a1f145b5a 86
rgrover1 239:693a1f145b5a 87 ble_gattc_handle_range_t handleRange = {
rgrover1 239:693a1f145b5a 88 .start_handle = startHandle,
rgrover1 239:693a1f145b5a 89 .end_handle = endHandle
rgrover1 239:693a1f145b5a 90 };
rgrover1 239:693a1f145b5a 91 uint32_t rc;
rgrover1 239:693a1f145b5a 92 if ((rc = sd_ble_gattc_characteristics_discover(connectionHandle, &handleRange)) != NRF_SUCCESS) {
rgrover1 278:26e3f0ef1e14 93 sdSingleton.terminateCharacteristicDiscovery();
rgrover1 239:693a1f145b5a 94 switch (rc) {
rgrover1 239:693a1f145b5a 95 case BLE_ERROR_INVALID_CONN_HANDLE:
rgrover1 239:693a1f145b5a 96 case NRF_ERROR_INVALID_ADDR:
rgrover1 239:693a1f145b5a 97 return BLE_ERROR_INVALID_PARAM;
rgrover1 239:693a1f145b5a 98 case NRF_ERROR_BUSY:
rgrover1 239:693a1f145b5a 99 return BLE_STACK_BUSY;
rgrover1 239:693a1f145b5a 100 default:
rgrover1 239:693a1f145b5a 101 case NRF_ERROR_INVALID_STATE:
rgrover1 239:693a1f145b5a 102 return BLE_ERROR_INVALID_STATE;
rgrover1 239:693a1f145b5a 103 }
rgrover1 239:693a1f145b5a 104 }
rgrover1 239:693a1f145b5a 105
rgrover1 239:693a1f145b5a 106 return BLE_ERROR_NONE;
rgrover1 239:693a1f145b5a 107 }
rgrover1 239:693a1f145b5a 108
rgrover1 239:693a1f145b5a 109 void
rgrover1 305:293634834813 110 NordicServiceDiscovery::ServiceUUIDDiscoveryQueue::triggerFirst(void)
rgrover1 290:83c994bf62d0 111 {
rgrover1 293:cd86acfe41be 112 while (numIndices) { /* loop until a call to char_value_by_uuid_read() succeeds or we run out of pending indices. */
rgrover1 301:59e7404a4ea3 113 parentDiscoveryObject->state = DISCOVER_SERVICE_UUIDS;
rgrover1 290:83c994bf62d0 114
rgrover1 295:5566c7b83bb5 115 unsigned serviceIndex = getFirst();
rgrover1 290:83c994bf62d0 116 ble_uuid_t uuid = {
rgrover1 290:83c994bf62d0 117 .uuid = BLE_UUID_SERVICE_PRIMARY,
rgrover1 290:83c994bf62d0 118 .type = BLE_UUID_TYPE_BLE,
rgrover1 290:83c994bf62d0 119 };
rgrover1 290:83c994bf62d0 120 ble_gattc_handle_range_t handleRange = {
rgrover1 301:59e7404a4ea3 121 .start_handle = parentDiscoveryObject->services[serviceIndex].getStartHandle(),
rgrover1 301:59e7404a4ea3 122 .end_handle = parentDiscoveryObject->services[serviceIndex].getEndHandle(),
rgrover1 290:83c994bf62d0 123 };
rgrover1 301:59e7404a4ea3 124 if (sd_ble_gattc_char_value_by_uuid_read(parentDiscoveryObject->connHandle, &uuid, &handleRange) == NRF_SUCCESS) {
rgrover1 293:cd86acfe41be 125 return;
rgrover1 290:83c994bf62d0 126 }
rgrover1 290:83c994bf62d0 127
rgrover1 293:cd86acfe41be 128 /* Skip this service if we fail to launch a read for its service-declaration
rgrover1 293:cd86acfe41be 129 * attribute. Its UUID will remain INVALID, and it may not match any filters. */
rgrover1 299:19064275c0e0 130 dequeue();
rgrover1 290:83c994bf62d0 131 }
rgrover1 290:83c994bf62d0 132
rgrover1 293:cd86acfe41be 133 /* Switch back to service discovery upon exhausting the service-indices pending UUID discovery. */
rgrover1 301:59e7404a4ea3 134 if (parentDiscoveryObject->state == DISCOVER_SERVICE_UUIDS) {
rgrover1 301:59e7404a4ea3 135 parentDiscoveryObject->state = SERVICE_DISCOVERY_ACTIVE;
rgrover1 290:83c994bf62d0 136 }
rgrover1 290:83c994bf62d0 137 }
rgrover1 290:83c994bf62d0 138
rgrover1 290:83c994bf62d0 139 void
rgrover1 306:76e2e7349319 140 NordicServiceDiscovery::CharUUIDDiscoveryQueue::triggerFirst(void)
rgrover1 306:76e2e7349319 141 {
rgrover1 306:76e2e7349319 142 while (numIndices) { /* loop until a call to char_value_by_uuid_read() succeeds or we run out of pending indices. */
rgrover1 306:76e2e7349319 143 parentDiscoveryObject->state = DISCOVER_CHARACTERISTIC_UUIDS;
rgrover1 306:76e2e7349319 144
rgrover1 306:76e2e7349319 145 unsigned charIndex = getFirst();
rgrover1 306:76e2e7349319 146 ble_uuid_t uuid = {
rgrover1 306:76e2e7349319 147 .uuid = BLE_UUID_CHARACTERISTIC,
rgrover1 306:76e2e7349319 148 .type = BLE_UUID_TYPE_BLE,
rgrover1 306:76e2e7349319 149 };
rgrover1 306:76e2e7349319 150 ble_gattc_handle_range_t handleRange = {
rgrover1 306:76e2e7349319 151 .start_handle = parentDiscoveryObject->characteristics[charIndex].getDeclHandle(),
rgrover1 306:76e2e7349319 152 .end_handle = parentDiscoveryObject->characteristics[charIndex].getDeclHandle() + 1,
rgrover1 306:76e2e7349319 153 };
rgrover1 306:76e2e7349319 154 if (sd_ble_gattc_char_value_by_uuid_read(parentDiscoveryObject->connHandle, &uuid, &handleRange) == NRF_SUCCESS) {
rgrover1 306:76e2e7349319 155 return;
rgrover1 306:76e2e7349319 156 }
rgrover1 306:76e2e7349319 157
rgrover1 306:76e2e7349319 158 /* Skip this service if we fail to launch a read for its service-declaration
rgrover1 306:76e2e7349319 159 * attribute. Its UUID will remain INVALID, and it may not match any filters. */
rgrover1 306:76e2e7349319 160 dequeue();
rgrover1 306:76e2e7349319 161 }
rgrover1 306:76e2e7349319 162
rgrover1 306:76e2e7349319 163 /* Switch back to service discovery upon exhausting the service-indices pending UUID discovery. */
rgrover1 306:76e2e7349319 164 if (parentDiscoveryObject->state == DISCOVER_CHARACTERISTIC_UUIDS) {
rgrover1 306:76e2e7349319 165 parentDiscoveryObject->state = CHARACTERISTIC_DISCOVERY_ACTIVE;
rgrover1 306:76e2e7349319 166 }
rgrover1 306:76e2e7349319 167 }
rgrover1 306:76e2e7349319 168
rgrover1 306:76e2e7349319 169 void
rgrover1 290:83c994bf62d0 170 NordicServiceDiscovery::processDiscoverUUIDResponse(const ble_gattc_evt_char_val_by_uuid_read_rsp_t *response)
rgrover1 290:83c994bf62d0 171 {
rgrover1 299:19064275c0e0 172 if (state == DISCOVER_SERVICE_UUIDS) {
rgrover1 299:19064275c0e0 173 if ((response->count == 1) && (response->value_len == UUID::LENGTH_OF_LONG_UUID)) {
rgrover1 299:19064275c0e0 174 UUID::LongUUIDBytes_t uuid;
rgrover1 299:19064275c0e0 175 /* Switch longUUID bytes to MSB */
rgrover1 299:19064275c0e0 176 for (unsigned i = 0; i < UUID::LENGTH_OF_LONG_UUID; i++) {
rgrover1 299:19064275c0e0 177 uuid[i] = response->handle_value[0].p_value[UUID::LENGTH_OF_LONG_UUID - 1 - i];
rgrover1 299:19064275c0e0 178 }
rgrover1 290:83c994bf62d0 179
rgrover1 305:293634834813 180 unsigned serviceIndex = serviceUUIDDiscoveryQueue.dequeue();
rgrover1 299:19064275c0e0 181 services[serviceIndex].setupLongUUID(uuid);
rgrover1 299:19064275c0e0 182
rgrover1 305:293634834813 183 serviceUUIDDiscoveryQueue.triggerFirst();
rgrover1 306:76e2e7349319 184 } else {
rgrover1 306:76e2e7349319 185 serviceUUIDDiscoveryQueue.dequeue();
rgrover1 306:76e2e7349319 186 }
rgrover1 306:76e2e7349319 187 } else if (state == DISCOVER_CHARACTERISTIC_UUIDS) {
rgrover1 306:76e2e7349319 188 if ((response->count == 1) && (response->value_len == UUID::LENGTH_OF_LONG_UUID + 1 /* props */ + 2 /* value handle */)) {
rgrover1 306:76e2e7349319 189 UUID::LongUUIDBytes_t uuid;
rgrover1 306:76e2e7349319 190 /* Switch longUUID bytes to MSB */
rgrover1 306:76e2e7349319 191 for (unsigned i = 0; i < UUID::LENGTH_OF_LONG_UUID; i++) {
rgrover1 306:76e2e7349319 192 uuid[i] = response->handle_value[0].p_value[3 + UUID::LENGTH_OF_LONG_UUID - 1 - i];
rgrover1 306:76e2e7349319 193 }
rgrover1 306:76e2e7349319 194
rgrover1 306:76e2e7349319 195 unsigned charIndex = charUUIDDiscoveryQueue.dequeue();
rgrover1 306:76e2e7349319 196 characteristics[charIndex].setupLongUUID(uuid);
rgrover1 306:76e2e7349319 197
rgrover1 306:76e2e7349319 198 charUUIDDiscoveryQueue.triggerFirst();
rgrover1 306:76e2e7349319 199 } else {
rgrover1 306:76e2e7349319 200 charUUIDDiscoveryQueue.dequeue();
rgrover1 296:8d25fe68d731 201 }
rgrover1 296:8d25fe68d731 202 }
rgrover1 290:83c994bf62d0 203 }
rgrover1 290:83c994bf62d0 204
rgrover1 290:83c994bf62d0 205 void
rgrover1 240:75b69581d1dd 206 NordicServiceDiscovery::setupDiscoveredServices(const ble_gattc_evt_prim_srvc_disc_rsp_t *response)
rgrover1 239:693a1f145b5a 207 {
rgrover1 242:73fc02cc20b1 208 serviceIndex = 0;
rgrover1 242:73fc02cc20b1 209 numServices = response->count;
rgrover1 239:693a1f145b5a 210
rgrover1 239:693a1f145b5a 211 /* Account for the limitation on the number of discovered services we can handle at a time. */
rgrover1 242:73fc02cc20b1 212 if (numServices > BLE_DB_DISCOVERY_MAX_SRV) {
rgrover1 242:73fc02cc20b1 213 numServices = BLE_DB_DISCOVERY_MAX_SRV;
rgrover1 239:693a1f145b5a 214 }
rgrover1 239:693a1f145b5a 215
rgrover1 305:293634834813 216 serviceUUIDDiscoveryQueue.reset();
rgrover1 242:73fc02cc20b1 217 for (unsigned serviceIndex = 0; serviceIndex < numServices; serviceIndex++) {
rgrover1 283:c4c2aeab86c3 218 if (response->services[serviceIndex].uuid.type == BLE_UUID_TYPE_UNKNOWN) {
rgrover1 305:293634834813 219 serviceUUIDDiscoveryQueue.enqueue(serviceIndex);
rgrover1 294:a2219bad9d4a 220 services[serviceIndex].setup(response->services[serviceIndex].handle_range.start_handle,
rgrover1 294:a2219bad9d4a 221 response->services[serviceIndex].handle_range.end_handle);
rgrover1 294:a2219bad9d4a 222 } else {
rgrover1 294:a2219bad9d4a 223 services[serviceIndex].setup(response->services[serviceIndex].uuid.uuid,
rgrover1 294:a2219bad9d4a 224 response->services[serviceIndex].handle_range.start_handle,
rgrover1 294:a2219bad9d4a 225 response->services[serviceIndex].handle_range.end_handle);
rgrover1 283:c4c2aeab86c3 226 }
rgrover1 239:693a1f145b5a 227 }
rgrover1 290:83c994bf62d0 228
rgrover1 290:83c994bf62d0 229 /* Trigger discovery of service UUID if necessary. */
rgrover1 305:293634834813 230 if (serviceUUIDDiscoveryQueue.getCount()) {
rgrover1 305:293634834813 231 serviceUUIDDiscoveryQueue.triggerFirst();
rgrover1 290:83c994bf62d0 232 }
rgrover1 239:693a1f145b5a 233 }
rgrover1 239:693a1f145b5a 234
rgrover1 239:693a1f145b5a 235 void
rgrover1 240:75b69581d1dd 236 NordicServiceDiscovery::setupDiscoveredCharacteristics(const ble_gattc_evt_char_disc_rsp_t *response)
rgrover1 239:693a1f145b5a 237 {
rgrover1 242:73fc02cc20b1 238 characteristicIndex = 0;
rgrover1 242:73fc02cc20b1 239 numCharacteristics = response->count;
rgrover1 239:693a1f145b5a 240
rgrover1 239:693a1f145b5a 241 /* Account for the limitation on the number of discovered characteristics we can handle at a time. */
rgrover1 242:73fc02cc20b1 242 if (numCharacteristics > BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV) {
rgrover1 242:73fc02cc20b1 243 numCharacteristics = BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV;
rgrover1 239:693a1f145b5a 244 }
rgrover1 239:693a1f145b5a 245
rgrover1 306:76e2e7349319 246 charUUIDDiscoveryQueue.reset();
rgrover1 242:73fc02cc20b1 247 for (unsigned charIndex = 0; charIndex < numCharacteristics; charIndex++) {
rgrover1 306:76e2e7349319 248 if (response->chars[charIndex].uuid.type == BLE_UUID_TYPE_UNKNOWN) {
rgrover1 306:76e2e7349319 249 charUUIDDiscoveryQueue.enqueue(charIndex);
rgrover1 306:76e2e7349319 250 characteristics[charIndex].setup(*(const uint8_t *)(&response->chars[charIndex].char_props),
rgrover1 306:76e2e7349319 251 response->chars[charIndex].handle_decl,
rgrover1 306:76e2e7349319 252 response->chars[charIndex].handle_value);
rgrover1 306:76e2e7349319 253 } else {
rgrover1 306:76e2e7349319 254 characteristics[charIndex].setup(response->chars[charIndex].uuid.uuid,
rgrover1 306:76e2e7349319 255 *(const uint8_t *)(&response->chars[charIndex].char_props),
rgrover1 306:76e2e7349319 256 response->chars[charIndex].handle_decl,
rgrover1 306:76e2e7349319 257 response->chars[charIndex].handle_value);
rgrover1 306:76e2e7349319 258 }
rgrover1 306:76e2e7349319 259 }
rgrover1 306:76e2e7349319 260
rgrover1 306:76e2e7349319 261 /* Trigger discovery of char UUID if necessary. */
rgrover1 306:76e2e7349319 262 if (charUUIDDiscoveryQueue.getCount()) {
rgrover1 306:76e2e7349319 263 charUUIDDiscoveryQueue.triggerFirst();
rgrover1 239:693a1f145b5a 264 }
rgrover1 243:a966506d1e5b 265 }
rgrover1 243:a966506d1e5b 266
rgrover1 251:d4e0cf5e8751 267 void
rgrover1 251:d4e0cf5e8751 268 NordicServiceDiscovery::progressCharacteristicDiscovery(void)
rgrover1 251:d4e0cf5e8751 269 {
rgrover1 276:ae6e5129b395 270 /* Iterate through the previously discovered characteristics cached in characteristics[]. */
rgrover1 286:042b01e59cf8 271 while ((state == CHARACTERISTIC_DISCOVERY_ACTIVE) && (characteristicIndex < numCharacteristics)) {
rgrover1 285:55ac765bcc8d 272 if ((matchingCharacteristicUUID == UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN)) ||
rgrover1 282:6633922380bf 273 (matchingCharacteristicUUID == characteristics[characteristicIndex].getShortUUID())) {
rgrover1 282:6633922380bf 274 if (characteristicCallback) {
rgrover1 282:6633922380bf 275 characteristicCallback(characteristics[characteristicIndex]);
rgrover1 282:6633922380bf 276 }
rgrover1 255:d228656b0cd1 277 }
rgrover1 251:d4e0cf5e8751 278
rgrover1 251:d4e0cf5e8751 279 characteristicIndex++;
rgrover1 251:d4e0cf5e8751 280 }
rgrover1 251:d4e0cf5e8751 281
rgrover1 276:ae6e5129b395 282 /* Relaunch discovery of new characteristics beyond the last entry cached in characteristics[]. */
rgrover1 286:042b01e59cf8 283 if (state == CHARACTERISTIC_DISCOVERY_ACTIVE) {
rgrover1 276:ae6e5129b395 284 /* Determine the ending handle of the last cached characteristic. */
rgrover1 264:5533ac0adf4b 285 Gap::Handle_t startHandle = characteristics[characteristicIndex - 1].getValueHandle() + 1;
rgrover1 264:5533ac0adf4b 286 Gap::Handle_t endHandle = services[serviceIndex].getEndHandle();
rgrover1 274:f82e0ecba699 287 resetDiscoveredCharacteristics(); /* Note: resetDiscoveredCharacteristics() must come after fetching start and end Handles. */
rgrover1 251:d4e0cf5e8751 288
rgrover1 251:d4e0cf5e8751 289 if (startHandle < endHandle) {
rgrover1 251:d4e0cf5e8751 290 ble_gattc_handle_range_t handleRange = {
rgrover1 251:d4e0cf5e8751 291 .start_handle = startHandle,
rgrover1 251:d4e0cf5e8751 292 .end_handle = endHandle
rgrover1 251:d4e0cf5e8751 293 };
rgrover1 258:62d6bf03e6a4 294 if (sd_ble_gattc_characteristics_discover(connHandle, &handleRange) != NRF_SUCCESS) {
rgrover1 258:62d6bf03e6a4 295 terminateCharacteristicDiscovery();
rgrover1 258:62d6bf03e6a4 296 }
rgrover1 251:d4e0cf5e8751 297 } else {
rgrover1 277:91705df8495e 298 terminateCharacteristicDiscovery();
rgrover1 251:d4e0cf5e8751 299 }
rgrover1 251:d4e0cf5e8751 300 }
rgrover1 251:d4e0cf5e8751 301 }
rgrover1 251:d4e0cf5e8751 302
rgrover1 251:d4e0cf5e8751 303 void
rgrover1 251:d4e0cf5e8751 304 NordicServiceDiscovery::progressServiceDiscovery(void)
rgrover1 251:d4e0cf5e8751 305 {
rgrover1 276:ae6e5129b395 306 /* Iterate through the previously discovered services cached in services[]. */
rgrover1 286:042b01e59cf8 307 while ((state == SERVICE_DISCOVERY_ACTIVE) && (serviceIndex < numServices)) {
rgrover1 285:55ac765bcc8d 308 if ((matchingServiceUUID == UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN)) ||
rgrover1 298:c10ee33f68ab 309 (matchingServiceUUID == services[serviceIndex].getUUID().getShortUUID())) {
rgrover1 277:91705df8495e 310 if (serviceCallback) {
rgrover1 277:91705df8495e 311 serviceCallback(services[serviceIndex]);
rgrover1 277:91705df8495e 312 }
rgrover1 251:d4e0cf5e8751 313
rgrover1 286:042b01e59cf8 314 if ((state == SERVICE_DISCOVERY_ACTIVE) && characteristicCallback) {
rgrover1 277:91705df8495e 315 launchCharacteristicDiscovery(connHandle, services[serviceIndex].getStartHandle(), services[serviceIndex].getEndHandle());
rgrover1 277:91705df8495e 316 } else {
rgrover1 277:91705df8495e 317 serviceIndex++;
rgrover1 277:91705df8495e 318 }
rgrover1 251:d4e0cf5e8751 319 } else {
rgrover1 277:91705df8495e 320 serviceIndex++;
rgrover1 251:d4e0cf5e8751 321 }
rgrover1 251:d4e0cf5e8751 322 }
rgrover1 276:ae6e5129b395 323
rgrover1 276:ae6e5129b395 324 /* Relaunch discovery of new services beyond the last entry cached in services[]. */
rgrover1 286:042b01e59cf8 325 if ((state == SERVICE_DISCOVERY_ACTIVE) && (numServices > 0) && (serviceIndex > 0)) {
rgrover1 276:ae6e5129b395 326 /* Determine the ending handle of the last cached service. */
rgrover1 264:5533ac0adf4b 327 Gap::Handle_t endHandle = services[serviceIndex - 1].getEndHandle();
rgrover1 274:f82e0ecba699 328 resetDiscoveredServices(); /* Note: resetDiscoveredServices() must come after fetching endHandle. */
rgrover1 251:d4e0cf5e8751 329
rgrover1 284:29fb6af6671d 330 if (endHandle == SRV_DISC_END_HANDLE) {
rgrover1 258:62d6bf03e6a4 331 terminateServiceDiscovery();
rgrover1 284:29fb6af6671d 332 } else {
rgrover1 284:29fb6af6671d 333 if (sd_ble_gattc_primary_services_discover(connHandle, endHandle, NULL) != NRF_SUCCESS) {
rgrover1 284:29fb6af6671d 334 terminateServiceDiscovery();
rgrover1 284:29fb6af6671d 335 }
rgrover1 258:62d6bf03e6a4 336 }
rgrover1 251:d4e0cf5e8751 337 }
rgrover1 251:d4e0cf5e8751 338 }
rgrover1 251:d4e0cf5e8751 339
rgrover1 243:a966506d1e5b 340 void bleGattcEventHandler(const ble_evt_t *p_ble_evt)
rgrover1 243:a966506d1e5b 341 {
rgrover1 243:a966506d1e5b 342 switch (p_ble_evt->header.evt_id) {
rgrover1 243:a966506d1e5b 343 case BLE_GATTC_EVT_PRIM_SRVC_DISC_RSP:
rgrover1 243:a966506d1e5b 344 switch (p_ble_evt->evt.gattc_evt.gatt_status) {
rgrover1 243:a966506d1e5b 345 case BLE_GATT_STATUS_SUCCESS:
rgrover1 278:26e3f0ef1e14 346 sdSingleton.setupDiscoveredServices(&p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp);
rgrover1 243:a966506d1e5b 347 break;
rgrover1 243:a966506d1e5b 348
rgrover1 243:a966506d1e5b 349 case BLE_GATT_STATUS_ATTERR_ATTRIBUTE_NOT_FOUND:
rgrover1 243:a966506d1e5b 350 default:
rgrover1 278:26e3f0ef1e14 351 sdSingleton.terminate();
rgrover1 243:a966506d1e5b 352 break;
rgrover1 243:a966506d1e5b 353 }
rgrover1 243:a966506d1e5b 354 break;
rgrover1 243:a966506d1e5b 355
rgrover1 243:a966506d1e5b 356 case BLE_GATTC_EVT_CHAR_DISC_RSP:
rgrover1 243:a966506d1e5b 357 switch (p_ble_evt->evt.gattc_evt.gatt_status) {
rgrover1 243:a966506d1e5b 358 case BLE_GATT_STATUS_SUCCESS:
rgrover1 278:26e3f0ef1e14 359 sdSingleton.setupDiscoveredCharacteristics(&p_ble_evt->evt.gattc_evt.params.char_disc_rsp);
rgrover1 243:a966506d1e5b 360 break;
rgrover1 243:a966506d1e5b 361
rgrover1 243:a966506d1e5b 362 case BLE_GATT_STATUS_ATTERR_ATTRIBUTE_NOT_FOUND:
rgrover1 243:a966506d1e5b 363 default:
rgrover1 278:26e3f0ef1e14 364 sdSingleton.terminateCharacteristicDiscovery();
rgrover1 243:a966506d1e5b 365 break;
rgrover1 243:a966506d1e5b 366 }
rgrover1 243:a966506d1e5b 367 break;
rgrover1 290:83c994bf62d0 368 case BLE_GATTC_EVT_CHAR_VAL_BY_UUID_READ_RSP: {
rgrover1 290:83c994bf62d0 369 if (sdSingleton.isActive()) {
rgrover1 290:83c994bf62d0 370 sdSingleton.processDiscoverUUIDResponse(&p_ble_evt->evt.gattc_evt.params.char_val_by_uuid_read_rsp);
rgrover1 290:83c994bf62d0 371 }
rgrover1 290:83c994bf62d0 372
rgrover1 290:83c994bf62d0 373 break;
rgrover1 290:83c994bf62d0 374 }
rgrover1 243:a966506d1e5b 375 }
rgrover1 243:a966506d1e5b 376
rgrover1 278:26e3f0ef1e14 377 sdSingleton.progressCharacteristicDiscovery();
rgrover1 278:26e3f0ef1e14 378 sdSingleton.progressServiceDiscovery();
rgrover1 239:693a1f145b5a 379 }