20200716 read Status Register each second
Dependencies: SDFileSystem mbed-os-example-ble-GattServer max32630fthr
BLEProcess.h@21:51e162c130a9, 2020-07-16 (annotated)
- Committer:
- aureliocarella
- Date:
- Thu Jul 16 14:59:04 2020 +0000
- Revision:
- 21:51e162c130a9
- Parent:
- 0:c671a4833315
20200716
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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mbed_official | 0:c671a4833315 | 1 | /* mbed Microcontroller Library |
mbed_official | 0:c671a4833315 | 2 | * Copyright (c) 2017 ARM Limited |
mbed_official | 0:c671a4833315 | 3 | * |
mbed_official | 0:c671a4833315 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
mbed_official | 0:c671a4833315 | 5 | * you may not use this file except in compliance with the License. |
mbed_official | 0:c671a4833315 | 6 | * You may obtain a copy of the License at |
mbed_official | 0:c671a4833315 | 7 | * |
mbed_official | 0:c671a4833315 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
mbed_official | 0:c671a4833315 | 9 | * |
mbed_official | 0:c671a4833315 | 10 | * Unless required by applicable law or agreed to in writing, software |
mbed_official | 0:c671a4833315 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbed_official | 0:c671a4833315 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbed_official | 0:c671a4833315 | 13 | * See the License for the specific language governing permissions and |
mbed_official | 0:c671a4833315 | 14 | * limitations under the License. |
mbed_official | 0:c671a4833315 | 15 | */ |
mbed_official | 0:c671a4833315 | 16 | |
mbed_official | 0:c671a4833315 | 17 | #ifndef GATT_SERVER_EXAMPLE_BLE_PROCESS_H_ |
mbed_official | 0:c671a4833315 | 18 | #define GATT_SERVER_EXAMPLE_BLE_PROCESS_H_ |
mbed_official | 0:c671a4833315 | 19 | |
mbed_official | 0:c671a4833315 | 20 | #include <stdint.h> |
mbed_official | 0:c671a4833315 | 21 | #include <stdio.h> |
mbed_official | 0:c671a4833315 | 22 | |
mbed_official | 0:c671a4833315 | 23 | #include "events/EventQueue.h" |
mbed_official | 0:c671a4833315 | 24 | #include "platform/Callback.h" |
mbed_official | 0:c671a4833315 | 25 | #include "platform/NonCopyable.h" |
mbed_official | 0:c671a4833315 | 26 | |
mbed_official | 0:c671a4833315 | 27 | #include "ble/BLE.h" |
mbed_official | 0:c671a4833315 | 28 | #include "ble/Gap.h" |
mbed_official | 0:c671a4833315 | 29 | #include "ble/GapAdvertisingParams.h" |
mbed_official | 0:c671a4833315 | 30 | #include "ble/GapAdvertisingData.h" |
mbed_official | 0:c671a4833315 | 31 | #include "ble/FunctionPointerWithContext.h" |
mbed_official | 0:c671a4833315 | 32 | |
mbed_official | 0:c671a4833315 | 33 | /** |
mbed_official | 0:c671a4833315 | 34 | * Handle initialization adn shutdown of the BLE Instance. |
mbed_official | 0:c671a4833315 | 35 | * |
mbed_official | 0:c671a4833315 | 36 | * Setup advertising payload and manage advertising state. |
mbed_official | 0:c671a4833315 | 37 | * Delegate to GattClientProcess once the connection is established. |
mbed_official | 0:c671a4833315 | 38 | */ |
mbed_official | 0:c671a4833315 | 39 | class BLEProcess : private mbed::NonCopyable<BLEProcess> { |
mbed_official | 0:c671a4833315 | 40 | public: |
mbed_official | 0:c671a4833315 | 41 | /** |
mbed_official | 0:c671a4833315 | 42 | * Construct a BLEProcess from an event queue and a ble interface. |
mbed_official | 0:c671a4833315 | 43 | * |
mbed_official | 0:c671a4833315 | 44 | * Call start() to initiate ble processing. |
mbed_official | 0:c671a4833315 | 45 | */ |
mbed_official | 0:c671a4833315 | 46 | BLEProcess(events::EventQueue &event_queue, BLE &ble_interface) : |
mbed_official | 0:c671a4833315 | 47 | _event_queue(event_queue), |
mbed_official | 0:c671a4833315 | 48 | _ble_interface(ble_interface), |
mbed_official | 0:c671a4833315 | 49 | _post_init_cb() { |
mbed_official | 0:c671a4833315 | 50 | } |
mbed_official | 0:c671a4833315 | 51 | |
mbed_official | 0:c671a4833315 | 52 | ~BLEProcess() |
mbed_official | 0:c671a4833315 | 53 | { |
mbed_official | 0:c671a4833315 | 54 | stop(); |
mbed_official | 0:c671a4833315 | 55 | } |
mbed_official | 0:c671a4833315 | 56 | |
mbed_official | 0:c671a4833315 | 57 | /** |
mbed_official | 0:c671a4833315 | 58 | * Subscription to the ble interface initialization event. |
mbed_official | 0:c671a4833315 | 59 | * |
mbed_official | 0:c671a4833315 | 60 | * @param[in] cb The callback object that will be called when the ble |
mbed_official | 0:c671a4833315 | 61 | * interface is initialized. |
mbed_official | 0:c671a4833315 | 62 | */ |
mbed_official | 0:c671a4833315 | 63 | void on_init(mbed::Callback<void(BLE&, events::EventQueue&)> cb) |
mbed_official | 0:c671a4833315 | 64 | { |
mbed_official | 0:c671a4833315 | 65 | _post_init_cb = cb; |
mbed_official | 0:c671a4833315 | 66 | } |
mbed_official | 0:c671a4833315 | 67 | |
mbed_official | 0:c671a4833315 | 68 | /** |
mbed_official | 0:c671a4833315 | 69 | * Initialize the ble interface, configure it and start advertising. |
mbed_official | 0:c671a4833315 | 70 | */ |
mbed_official | 0:c671a4833315 | 71 | bool start() |
mbed_official | 0:c671a4833315 | 72 | { |
mbed_official | 0:c671a4833315 | 73 | printf("Ble process started.\r\n"); |
mbed_official | 0:c671a4833315 | 74 | |
mbed_official | 0:c671a4833315 | 75 | if (_ble_interface.hasInitialized()) { |
mbed_official | 0:c671a4833315 | 76 | printf("Error: the ble instance has already been initialized.\r\n"); |
mbed_official | 0:c671a4833315 | 77 | return false; |
mbed_official | 0:c671a4833315 | 78 | } |
mbed_official | 0:c671a4833315 | 79 | |
mbed_official | 0:c671a4833315 | 80 | _ble_interface.onEventsToProcess( |
mbed_official | 0:c671a4833315 | 81 | makeFunctionPointer(this, &BLEProcess::schedule_ble_events) |
mbed_official | 0:c671a4833315 | 82 | ); |
mbed_official | 0:c671a4833315 | 83 | |
mbed_official | 0:c671a4833315 | 84 | ble_error_t error = _ble_interface.init( |
mbed_official | 0:c671a4833315 | 85 | this, &BLEProcess::when_init_complete |
mbed_official | 0:c671a4833315 | 86 | ); |
mbed_official | 0:c671a4833315 | 87 | |
mbed_official | 0:c671a4833315 | 88 | if (error) { |
mbed_official | 0:c671a4833315 | 89 | printf("Error: %u returned by BLE::init.\r\n", error); |
mbed_official | 0:c671a4833315 | 90 | return false; |
mbed_official | 0:c671a4833315 | 91 | } |
mbed_official | 0:c671a4833315 | 92 | |
mbed_official | 0:c671a4833315 | 93 | return true; |
mbed_official | 0:c671a4833315 | 94 | } |
mbed_official | 0:c671a4833315 | 95 | |
mbed_official | 0:c671a4833315 | 96 | /** |
mbed_official | 0:c671a4833315 | 97 | * Close existing connections and stop the process. |
mbed_official | 0:c671a4833315 | 98 | */ |
mbed_official | 0:c671a4833315 | 99 | void stop() |
mbed_official | 0:c671a4833315 | 100 | { |
mbed_official | 0:c671a4833315 | 101 | if (_ble_interface.hasInitialized()) { |
mbed_official | 0:c671a4833315 | 102 | _ble_interface.shutdown(); |
mbed_official | 0:c671a4833315 | 103 | printf("Ble process stopped."); |
mbed_official | 0:c671a4833315 | 104 | } |
mbed_official | 0:c671a4833315 | 105 | } |
mbed_official | 0:c671a4833315 | 106 | |
mbed_official | 0:c671a4833315 | 107 | private: |
mbed_official | 0:c671a4833315 | 108 | |
mbed_official | 0:c671a4833315 | 109 | /** |
mbed_official | 0:c671a4833315 | 110 | * Schedule processing of events from the BLE middleware in the event queue. |
mbed_official | 0:c671a4833315 | 111 | */ |
mbed_official | 0:c671a4833315 | 112 | void schedule_ble_events(BLE::OnEventsToProcessCallbackContext *event) |
mbed_official | 0:c671a4833315 | 113 | { |
mbed_official | 0:c671a4833315 | 114 | _event_queue.call(mbed::callback(&event->ble, &BLE::processEvents)); |
mbed_official | 0:c671a4833315 | 115 | } |
mbed_official | 0:c671a4833315 | 116 | |
mbed_official | 0:c671a4833315 | 117 | /** |
mbed_official | 0:c671a4833315 | 118 | * Sets up adverting payload and start advertising. |
mbed_official | 0:c671a4833315 | 119 | * |
mbed_official | 0:c671a4833315 | 120 | * This function is invoked when the ble interface is initialized. |
mbed_official | 0:c671a4833315 | 121 | */ |
mbed_official | 0:c671a4833315 | 122 | void when_init_complete(BLE::InitializationCompleteCallbackContext *event) |
mbed_official | 0:c671a4833315 | 123 | { |
mbed_official | 0:c671a4833315 | 124 | if (event->error) { |
mbed_official | 0:c671a4833315 | 125 | printf("Error %u during the initialization\r\n", event->error); |
mbed_official | 0:c671a4833315 | 126 | return; |
mbed_official | 0:c671a4833315 | 127 | } |
mbed_official | 0:c671a4833315 | 128 | printf("Ble instance initialized\r\n"); |
mbed_official | 0:c671a4833315 | 129 | |
mbed_official | 0:c671a4833315 | 130 | Gap &gap = _ble_interface.gap(); |
mbed_official | 0:c671a4833315 | 131 | ble_error_t error = gap.setAdvertisingPayload(make_advertising_data()); |
mbed_official | 0:c671a4833315 | 132 | if (error) { |
mbed_official | 0:c671a4833315 | 133 | printf("Error %u during gap.setAdvertisingPayload\r\n", error); |
mbed_official | 0:c671a4833315 | 134 | return; |
mbed_official | 0:c671a4833315 | 135 | } |
mbed_official | 0:c671a4833315 | 136 | |
mbed_official | 0:c671a4833315 | 137 | gap.setAdvertisingParams(make_advertising_params()); |
mbed_official | 0:c671a4833315 | 138 | |
mbed_official | 0:c671a4833315 | 139 | gap.onConnection(this, &BLEProcess::when_connection); |
mbed_official | 0:c671a4833315 | 140 | gap.onDisconnection(this, &BLEProcess::when_disconnection); |
mbed_official | 0:c671a4833315 | 141 | |
mbed_official | 0:c671a4833315 | 142 | start_advertising(); |
mbed_official | 0:c671a4833315 | 143 | |
mbed_official | 0:c671a4833315 | 144 | if (_post_init_cb) { |
mbed_official | 0:c671a4833315 | 145 | _post_init_cb(_ble_interface, _event_queue); |
mbed_official | 0:c671a4833315 | 146 | } |
mbed_official | 0:c671a4833315 | 147 | } |
mbed_official | 0:c671a4833315 | 148 | |
mbed_official | 0:c671a4833315 | 149 | void when_connection(const Gap::ConnectionCallbackParams_t *connection_event) |
mbed_official | 0:c671a4833315 | 150 | { |
mbed_official | 0:c671a4833315 | 151 | printf("Connected.\r\n"); |
aureliocarella | 21:51e162c130a9 | 152 | //send MAX30001 Start Commands |
mbed_official | 0:c671a4833315 | 153 | } |
mbed_official | 0:c671a4833315 | 154 | |
mbed_official | 0:c671a4833315 | 155 | void when_disconnection(const Gap::DisconnectionCallbackParams_t *event) |
mbed_official | 0:c671a4833315 | 156 | { |
mbed_official | 0:c671a4833315 | 157 | printf("Disconnected.\r\n"); |
mbed_official | 0:c671a4833315 | 158 | start_advertising(); |
mbed_official | 0:c671a4833315 | 159 | } |
mbed_official | 0:c671a4833315 | 160 | |
mbed_official | 0:c671a4833315 | 161 | void start_advertising(void) |
mbed_official | 0:c671a4833315 | 162 | { |
mbed_official | 0:c671a4833315 | 163 | ble_error_t error = _ble_interface.gap().startAdvertising(); |
mbed_official | 0:c671a4833315 | 164 | if (error) { |
mbed_official | 0:c671a4833315 | 165 | printf("Error %u during gap.startAdvertising.\r\n", error); |
mbed_official | 0:c671a4833315 | 166 | return; |
mbed_official | 0:c671a4833315 | 167 | } else { |
mbed_official | 0:c671a4833315 | 168 | printf("Advertising started.\r\n"); |
mbed_official | 0:c671a4833315 | 169 | } |
mbed_official | 0:c671a4833315 | 170 | } |
mbed_official | 0:c671a4833315 | 171 | |
mbed_official | 0:c671a4833315 | 172 | static GapAdvertisingData make_advertising_data(void) |
mbed_official | 0:c671a4833315 | 173 | { |
aureliocarella | 21:51e162c130a9 | 174 | static const uint8_t device_name[] = "TCARE-ECG"; |
mbed_official | 0:c671a4833315 | 175 | GapAdvertisingData advertising_data; |
mbed_official | 0:c671a4833315 | 176 | |
mbed_official | 0:c671a4833315 | 177 | // add advertising flags |
mbed_official | 0:c671a4833315 | 178 | advertising_data.addFlags( |
mbed_official | 0:c671a4833315 | 179 | GapAdvertisingData::LE_GENERAL_DISCOVERABLE | |
mbed_official | 0:c671a4833315 | 180 | GapAdvertisingData::BREDR_NOT_SUPPORTED |
mbed_official | 0:c671a4833315 | 181 | ); |
mbed_official | 0:c671a4833315 | 182 | |
mbed_official | 0:c671a4833315 | 183 | // add device name |
mbed_official | 0:c671a4833315 | 184 | advertising_data.addData( |
mbed_official | 0:c671a4833315 | 185 | GapAdvertisingData::COMPLETE_LOCAL_NAME, |
mbed_official | 0:c671a4833315 | 186 | device_name, |
mbed_official | 0:c671a4833315 | 187 | sizeof(device_name) |
mbed_official | 0:c671a4833315 | 188 | ); |
mbed_official | 0:c671a4833315 | 189 | |
mbed_official | 0:c671a4833315 | 190 | return advertising_data; |
mbed_official | 0:c671a4833315 | 191 | } |
mbed_official | 0:c671a4833315 | 192 | |
mbed_official | 0:c671a4833315 | 193 | static GapAdvertisingParams make_advertising_params(void) |
mbed_official | 0:c671a4833315 | 194 | { |
mbed_official | 0:c671a4833315 | 195 | return GapAdvertisingParams( |
mbed_official | 0:c671a4833315 | 196 | /* type */ GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED, |
mbed_official | 0:c671a4833315 | 197 | /* interval */ GapAdvertisingParams::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(500), |
mbed_official | 0:c671a4833315 | 198 | /* timeout */ 0 |
mbed_official | 0:c671a4833315 | 199 | ); |
mbed_official | 0:c671a4833315 | 200 | } |
mbed_official | 0:c671a4833315 | 201 | |
mbed_official | 0:c671a4833315 | 202 | events::EventQueue &_event_queue; |
mbed_official | 0:c671a4833315 | 203 | BLE &_ble_interface; |
mbed_official | 0:c671a4833315 | 204 | mbed::Callback<void(BLE&, events::EventQueue&)> _post_init_cb; |
mbed_official | 0:c671a4833315 | 205 | }; |
mbed_official | 0:c671a4833315 | 206 | |
mbed_official | 0:c671a4833315 | 207 | #endif /* GATT_SERVER_EXAMPLE_BLE_PROCESS_H_ */ |