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btle/btle_discovery.h
- Committer:
- rgrover1
- Date:
- 2015-06-19
- Revision:
- 263:d5da37e9a93b
- Parent:
- 262:d6682155f833
- Child:
- 279:6e5e79f1fb61
File content as of revision 263:d5da37e9a93b:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef _BTLE_DISCOVERY_H_ #define _BTLE_DISCOVERY_H_ #include "ble.h" #include "ServiceDiscovery.h" void bleGattcEventHandler(const ble_evt_t *p_ble_evt); class NordicServiceDiscovery : public ServiceDiscovery { public: static const uint16_t SRV_DISC_START_HANDLE = 0x0001; /**< The start handle value used during service discovery. */ private: static const unsigned BLE_DB_DISCOVERY_MAX_SRV = 4; /**< Maximum number of services we can retain information for after a single discovery. */ static const unsigned BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV = 4; /**< Maximum number of characteristics per service we can retain information for. */ public: ble_error_t launchCharacteristicDiscovery(Gap::Handle_t connectionHandle, Gap::Handle_t startHandle, Gap::Handle_t endHandle); public: void setupDiscoveredServices(const ble_gattc_evt_prim_srvc_disc_rsp_t *response); void setupDiscoveredCharacteristics(const ble_gattc_evt_char_disc_rsp_t *response); void terminateServiceDiscovery(void) { sDiscoveryActive = false; cDiscoveryActive = false; } void terminateCharacteristicDiscovery(void) { cDiscoveryActive = false; sDiscoveryActive = true; serviceIndex++; /* Progress service index to keep discovery alive. */ } private: void resetDiscoveredServices(void) { numServices = 0; serviceIndex = 0; memset(services, 0, sizeof(DiscoveredService) * BLE_DB_DISCOVERY_MAX_SRV); } void resetDiscoveredCharacteristics(void) { numCharacteristics = 0; characteristicIndex = 0; memset(characteristics, 0, sizeof(DiscoveredCharacteristic) * BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV); } public: void serviceDiscoveryStarted(Gap::Handle_t connectionHandle) { connHandle = connectionHandle; resetDiscoveredServices(); sDiscoveryActive = true; cDiscoveryActive = false; } private: void characteristicDiscoveryStarted(Gap::Handle_t connectionHandle) { connHandle = connectionHandle; resetDiscoveredCharacteristics(); cDiscoveryActive = true; sDiscoveryActive = false; } private: friend void bleGattcEventHandler(const ble_evt_t *p_ble_evt); void progressCharacteristicDiscovery(void); void progressServiceDiscovery(void); private: uint8_t serviceIndex; /**< Index of the current service being discovered. This is intended for internal use during service discovery.*/ uint8_t numServices; /**< Number of services at the peers GATT database.*/ uint8_t characteristicIndex; /**< Index of the current characteristic being discovered. This is intended for internal use during service discovery.*/ uint8_t numCharacteristics; /**< Number of characteristics within the service.*/ bool sDiscoveryActive; bool cDiscoveryActive; DiscoveredService services[BLE_DB_DISCOVERY_MAX_SRV]; /**< Information related to the current service being discovered. * This is intended for internal use during service discovery. */ DiscoveredCharacteristic characteristics[BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV]; }; #endif /*_BTLE_DISCOVERY_H_*/