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btle/btle_discovery.h@291:d7590ed48009, 2015-06-19 (annotated)
- Committer:
- rgrover1
- Date:
- Fri Jun 19 15:55:27 2015 +0100
- Revision:
- 291:d7590ed48009
- Parent:
- 290:83c994bf62d0
- Child:
- 292:01b717803437
Synchronized with git rev c852d134
Author: Rohit Grover
white space diffs.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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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 | 284:29fb6af6671d | 29 | static const uint16_t SRV_DISC_END_HANDLE = 0xFFFF; /**< The end handle value used during service discovery. */ |
rgrover1 | 260:ea2798f615e5 | 30 | |
rgrover1 | 289:b33301b019e6 | 31 | public: |
rgrover1 | 248:71ef03789dd3 | 32 | 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 | 33 | 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 | 34 | |
rgrover1 | 260:ea2798f615e5 | 35 | public: |
rgrover1 | 288:1d85c4a4d397 | 36 | NordicServiceDiscovery() : serviceIndex(0), |
rgrover1 | 288:1d85c4a4d397 | 37 | numServices(0), |
rgrover1 | 288:1d85c4a4d397 | 38 | characteristicIndex(0), |
rgrover1 | 288:1d85c4a4d397 | 39 | numCharacteristics(0), |
rgrover1 | 288:1d85c4a4d397 | 40 | state(INACTIVE), |
rgrover1 | 288:1d85c4a4d397 | 41 | services(), |
rgrover1 | 288:1d85c4a4d397 | 42 | characteristics(), |
rgrover1 | 288:1d85c4a4d397 | 43 | onTerminationCallback(NULL) { |
rgrover1 | 288:1d85c4a4d397 | 44 | /* empty */ |
rgrover1 | 288:1d85c4a4d397 | 45 | } |
rgrover1 | 288:1d85c4a4d397 | 46 | |
rgrover1 | 288:1d85c4a4d397 | 47 | public: |
rgrover1 | 260:ea2798f615e5 | 48 | ble_error_t launchCharacteristicDiscovery(Gap::Handle_t connectionHandle, Gap::Handle_t startHandle, Gap::Handle_t endHandle); |
rgrover1 | 239:693a1f145b5a | 49 | |
rgrover1 | 239:693a1f145b5a | 50 | public: |
rgrover1 | 248:71ef03789dd3 | 51 | void setupDiscoveredServices(const ble_gattc_evt_prim_srvc_disc_rsp_t *response); |
rgrover1 | 248:71ef03789dd3 | 52 | void setupDiscoveredCharacteristics(const ble_gattc_evt_char_disc_rsp_t *response); |
rgrover1 | 248:71ef03789dd3 | 53 | |
rgrover1 | 290:83c994bf62d0 | 54 | void triggerServiceUUIDDiscovery(void); |
rgrover1 | 290:83c994bf62d0 | 55 | void processDiscoverUUIDResponse(const ble_gattc_evt_char_val_by_uuid_read_rsp_t *response); |
rgrover1 | 290:83c994bf62d0 | 56 | void removeFirstServiceNeedingUUIDDiscovery(void); |
rgrover1 | 290:83c994bf62d0 | 57 | |
rgrover1 | 248:71ef03789dd3 | 58 | void terminateServiceDiscovery(void) { |
rgrover1 | 280:cbaa4cb83548 | 59 | bool wasActive = isActive(); |
rgrover1 | 286:042b01e59cf8 | 60 | state = INACTIVE; |
rgrover1 | 280:cbaa4cb83548 | 61 | |
rgrover1 | 280:cbaa4cb83548 | 62 | if (wasActive && onTerminationCallback) { |
rgrover1 | 280:cbaa4cb83548 | 63 | onTerminationCallback(connHandle); |
rgrover1 | 280:cbaa4cb83548 | 64 | } |
rgrover1 | 239:693a1f145b5a | 65 | } |
rgrover1 | 239:693a1f145b5a | 66 | |
rgrover1 | 245:3abc61d38db3 | 67 | void terminateCharacteristicDiscovery(void) { |
rgrover1 | 286:042b01e59cf8 | 68 | if (state == CHARACTERISTIC_DISCOVERY_ACTIVE) { |
rgrover1 | 286:042b01e59cf8 | 69 | state = SERVICE_DISCOVERY_ACTIVE; |
rgrover1 | 286:042b01e59cf8 | 70 | } |
rgrover1 | 245:3abc61d38db3 | 71 | serviceIndex++; /* Progress service index to keep discovery alive. */ |
rgrover1 | 245:3abc61d38db3 | 72 | } |
rgrover1 | 245:3abc61d38db3 | 73 | |
rgrover1 | 279:6e5e79f1fb61 | 74 | bool isActive(void) const { |
rgrover1 | 286:042b01e59cf8 | 75 | return state != INACTIVE; |
rgrover1 | 279:6e5e79f1fb61 | 76 | } |
rgrover1 | 279:6e5e79f1fb61 | 77 | |
rgrover1 | 280:cbaa4cb83548 | 78 | void setOnTermination(TerminationCallback_t callback) { |
rgrover1 | 280:cbaa4cb83548 | 79 | onTerminationCallback = callback; |
rgrover1 | 280:cbaa4cb83548 | 80 | } |
rgrover1 | 280:cbaa4cb83548 | 81 | |
rgrover1 | 260:ea2798f615e5 | 82 | private: |
rgrover1 | 239:693a1f145b5a | 83 | void resetDiscoveredServices(void) { |
rgrover1 | 242:73fc02cc20b1 | 84 | numServices = 0; |
rgrover1 | 242:73fc02cc20b1 | 85 | serviceIndex = 0; |
rgrover1 | 239:693a1f145b5a | 86 | memset(services, 0, sizeof(DiscoveredService) * BLE_DB_DISCOVERY_MAX_SRV); |
rgrover1 | 239:693a1f145b5a | 87 | } |
rgrover1 | 239:693a1f145b5a | 88 | |
rgrover1 | 245:3abc61d38db3 | 89 | void resetDiscoveredCharacteristics(void) { |
rgrover1 | 245:3abc61d38db3 | 90 | numCharacteristics = 0; |
rgrover1 | 245:3abc61d38db3 | 91 | characteristicIndex = 0; |
rgrover1 | 245:3abc61d38db3 | 92 | memset(characteristics, 0, sizeof(DiscoveredCharacteristic) * BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV); |
rgrover1 | 245:3abc61d38db3 | 93 | } |
rgrover1 | 245:3abc61d38db3 | 94 | |
rgrover1 | 245:3abc61d38db3 | 95 | public: |
rgrover1 | 243:a966506d1e5b | 96 | void serviceDiscoveryStarted(Gap::Handle_t connectionHandle) { |
rgrover1 | 291:d7590ed48009 | 97 | connHandle = connectionHandle; |
rgrover1 | 243:a966506d1e5b | 98 | resetDiscoveredServices(); |
rgrover1 | 286:042b01e59cf8 | 99 | state = SERVICE_DISCOVERY_ACTIVE; |
rgrover1 | 243:a966506d1e5b | 100 | } |
rgrover1 | 243:a966506d1e5b | 101 | |
rgrover1 | 260:ea2798f615e5 | 102 | private: |
rgrover1 | 245:3abc61d38db3 | 103 | void characteristicDiscoveryStarted(Gap::Handle_t connectionHandle) { |
rgrover1 | 291:d7590ed48009 | 104 | connHandle = connectionHandle; |
rgrover1 | 245:3abc61d38db3 | 105 | resetDiscoveredCharacteristics(); |
rgrover1 | 286:042b01e59cf8 | 106 | state = CHARACTERISTIC_DISCOVERY_ACTIVE; |
rgrover1 | 245:3abc61d38db3 | 107 | } |
rgrover1 | 245:3abc61d38db3 | 108 | |
rgrover1 | 251:d4e0cf5e8751 | 109 | private: |
rgrover1 | 251:d4e0cf5e8751 | 110 | friend void bleGattcEventHandler(const ble_evt_t *p_ble_evt); |
rgrover1 | 251:d4e0cf5e8751 | 111 | void progressCharacteristicDiscovery(void); |
rgrover1 | 251:d4e0cf5e8751 | 112 | void progressServiceDiscovery(void); |
rgrover1 | 239:693a1f145b5a | 113 | |
rgrover1 | 248:71ef03789dd3 | 114 | private: |
rgrover1 | 248:71ef03789dd3 | 115 | uint8_t serviceIndex; /**< Index of the current service being discovered. This is intended for internal use during service discovery.*/ |
rgrover1 | 248:71ef03789dd3 | 116 | uint8_t numServices; /**< Number of services at the peers GATT database.*/ |
rgrover1 | 248:71ef03789dd3 | 117 | uint8_t characteristicIndex; /**< Index of the current characteristic being discovered. This is intended for internal use during service discovery.*/ |
rgrover1 | 248:71ef03789dd3 | 118 | uint8_t numCharacteristics; /**< Number of characteristics within the service.*/ |
rgrover1 | 248:71ef03789dd3 | 119 | |
rgrover1 | 286:042b01e59cf8 | 120 | enum State_t { |
rgrover1 | 286:042b01e59cf8 | 121 | INACTIVE, |
rgrover1 | 286:042b01e59cf8 | 122 | SERVICE_DISCOVERY_ACTIVE, |
rgrover1 | 286:042b01e59cf8 | 123 | CHARACTERISTIC_DISCOVERY_ACTIVE, |
rgrover1 | 290:83c994bf62d0 | 124 | DISCOVER_SERVICE_UUIDS, |
rgrover1 | 286:042b01e59cf8 | 125 | } state; |
rgrover1 | 248:71ef03789dd3 | 126 | |
rgrover1 | 248:71ef03789dd3 | 127 | DiscoveredService services[BLE_DB_DISCOVERY_MAX_SRV]; /**< Information related to the current service being discovered. |
rgrover1 | 248:71ef03789dd3 | 128 | * This is intended for internal use during service discovery. */ |
rgrover1 | 248:71ef03789dd3 | 129 | DiscoveredCharacteristic characteristics[BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV]; |
rgrover1 | 280:cbaa4cb83548 | 130 | |
rgrover1 | 280:cbaa4cb83548 | 131 | TerminationCallback_t onTerminationCallback; |
rgrover1 | 240:75b69581d1dd | 132 | }; |
rgrover1 | 240:75b69581d1dd | 133 | |
rgrover1 | 239:693a1f145b5a | 134 | #endif /*_BTLE_DISCOVERY_H_*/ |