Martin Woolley
My fork
Dependencies: BLE_API nRF51822-bluetooth-mdw
Fork of
microbit-dal
by 
Lancaster University
inc/bluetooth/MicroBitBLEManager.h@76:50e98a8862ab, 2016-12-27 (annotated)
- Committer:
- bluetooth_mdw
- Date:
- Tue Dec 27 10:59:38 2016 +0000
- Revision:
- 76:50e98a8862ab
- Parent:
- 74:9771cd712730
Solution
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| Jonathan Austin |
1:8aa5cdb4ab67 | 1 | /* |
| Jonathan Austin |
1:8aa5cdb4ab67 | 2 | The MIT License (MIT) |
| Jonathan Austin |
1:8aa5cdb4ab67 | 3 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 4 | Copyright (c) 2016 British Broadcasting Corporation. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 5 | This software is provided by Lancaster University by arrangement with the BBC. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 6 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 7 | Permission is hereby granted, free of charge, to any person obtaining a |
| Jonathan Austin |
1:8aa5cdb4ab67 | 8 | copy of this software and associated documentation files (the "Software"), |
| Jonathan Austin |
1:8aa5cdb4ab67 | 9 | to deal in the Software without restriction, including without limitation |
| Jonathan Austin |
1:8aa5cdb4ab67 | 10 | the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| Jonathan Austin |
1:8aa5cdb4ab67 | 11 | and/or sell copies of the Software, and to permit persons to whom the |
| Jonathan Austin |
1:8aa5cdb4ab67 | 12 | Software is furnished to do so, subject to the following conditions: |
| Jonathan Austin |
1:8aa5cdb4ab67 | 13 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 14 | The above copyright notice and this permission notice shall be included in |
| Jonathan Austin |
1:8aa5cdb4ab67 | 15 | all copies or substantial portions of the Software. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 16 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 17 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| Jonathan Austin |
1:8aa5cdb4ab67 | 18 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| Jonathan Austin |
1:8aa5cdb4ab67 | 19 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| Jonathan Austin |
1:8aa5cdb4ab67 | 20 | THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| Jonathan Austin |
1:8aa5cdb4ab67 | 21 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| Jonathan Austin |
1:8aa5cdb4ab67 | 22 | FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| Jonathan Austin |
1:8aa5cdb4ab67 | 23 | DEALINGS IN THE SOFTWARE. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 24 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 25 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 26 | #ifndef MICROBIT_BLE_MANAGER_H |
| Jonathan Austin |
1:8aa5cdb4ab67 | 27 | #define MICROBIT_BLE_MANAGER_H |
| Jonathan Austin |
1:8aa5cdb4ab67 | 28 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 29 | #include "mbed.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 30 | #include "MicroBitConfig.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 31 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 32 | /* |
| Jonathan Austin |
1:8aa5cdb4ab67 | 33 | * The underlying Nordic libraries that support BLE do not compile cleanly with the stringent GCC settings we employ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 34 | * If we're compiling under GCC, then we suppress any warnings generated from this code (but not the rest of the DAL) |
| Jonathan Austin |
1:8aa5cdb4ab67 | 35 | * The ARM cc compiler is more tolerant. We don't test __GNUC__ here to detect GCC as ARMCC also typically sets this |
| Jonathan Austin |
1:8aa5cdb4ab67 | 36 | * as a compatability option, but does not support the options used... |
| Jonathan Austin |
1:8aa5cdb4ab67 | 37 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 38 | #if !defined (__arm) |
| Jonathan Austin |
1:8aa5cdb4ab67 | 39 | #pragma GCC diagnostic push |
| Jonathan Austin |
1:8aa5cdb4ab67 | 40 | #pragma GCC diagnostic ignored "-Wunused-parameter" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 41 | #endif |
| Jonathan Austin |
1:8aa5cdb4ab67 | 42 | #include "ble/BLE.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 43 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 44 | /* |
| Jonathan Austin |
1:8aa5cdb4ab67 | 45 | * Return to our predefined compiler settings. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 46 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 47 | #if !defined (__arm) |
| Jonathan Austin |
1:8aa5cdb4ab67 | 48 | #pragma GCC diagnostic pop |
| Jonathan Austin |
1:8aa5cdb4ab67 | 49 | #endif |
| Jonathan Austin |
1:8aa5cdb4ab67 | 50 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 51 | #include "ble/services/DeviceInformationService.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 52 | #include "MicroBitDFUService.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 53 | #include "MicroBitEventService.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 54 | #include "MicroBitLEDService.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 55 | #include "MicroBitAccelerometerService.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 56 | #include "MicroBitMagnetometerService.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 57 | #include "MicroBitButtonService.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 58 | #include "MicroBitIOPinService.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 59 | #include "MicroBitTemperatureService.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 60 | #include "ExternalEvents.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 61 | #include "MicroBitButton.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 62 | #include "MicroBitStorage.h" |
| Jonathan Austin |
1:8aa5cdb4ab67 | 63 | |
| bluetooth_mdw | 74:9771cd712730 | 64 | #include "MicroBitAnimationService.h" |
| bluetooth_mdw | 74:9771cd712730 | 65 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 66 | #define MICROBIT_BLE_PAIR_REQUEST 0x01 |
| Jonathan Austin |
1:8aa5cdb4ab67 | 67 | #define MICROBIT_BLE_PAIR_COMPLETE 0x02 |
| Jonathan Austin |
1:8aa5cdb4ab67 | 68 | #define MICROBIT_BLE_PAIR_PASSCODE 0x04 |
| Jonathan Austin |
1:8aa5cdb4ab67 | 69 | #define MICROBIT_BLE_PAIR_SUCCESSFUL 0x08 |
| Jonathan Austin |
1:8aa5cdb4ab67 | 70 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 71 | #define MICROBIT_BLE_PAIRING_TIMEOUT 90 |
| Jonathan Austin |
1:8aa5cdb4ab67 | 72 | #define MICROBIT_BLE_POWER_LEVELS 8 |
| Jonathan Austin |
1:8aa5cdb4ab67 | 73 | #define MICROBIT_BLE_MAXIMUM_BONDS 4 |
| Jonathan Austin |
1:8aa5cdb4ab67 | 74 | #define MICROBIT_BLE_ENABLE_BONDING true |
| Jonathan Austin |
1:8aa5cdb4ab67 | 75 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 76 | extern const int8_t MICROBIT_BLE_POWER_LEVEL[]; |
| Jonathan Austin |
1:8aa5cdb4ab67 | 77 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 78 | struct BLESysAttribute |
| Jonathan Austin |
1:8aa5cdb4ab67 | 79 | { |
| LancasterUniversity | 3:d86a4ddc1867 | 80 | uint8_t sys_attr[8]; |
| Jonathan Austin |
1:8aa5cdb4ab67 | 81 | }; |
| Jonathan Austin |
1:8aa5cdb4ab67 | 82 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 83 | struct BLESysAttributeStore |
| Jonathan Austin |
1:8aa5cdb4ab67 | 84 | { |
| Jonathan Austin |
1:8aa5cdb4ab67 | 85 | BLESysAttribute sys_attrs[MICROBIT_BLE_MAXIMUM_BONDS]; |
| Jonathan Austin |
1:8aa5cdb4ab67 | 86 | }; |
| Jonathan Austin |
1:8aa5cdb4ab67 | 87 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 88 | /** |
| Jonathan Austin |
1:8aa5cdb4ab67 | 89 | * Class definition for the MicroBitBLEManager. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 90 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 91 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 92 | class MicroBitBLEManager : MicroBitComponent |
| Jonathan Austin |
1:8aa5cdb4ab67 | 93 | { |
| Jonathan Austin |
1:8aa5cdb4ab67 | 94 | public: |
| Jonathan Austin |
1:8aa5cdb4ab67 | 95 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 96 | // The mbed abstraction of the BlueTooth Low Energy (BLE) hardware |
| Jonathan Austin |
1:8aa5cdb4ab67 | 97 | BLEDevice *ble; |
| Jonathan Austin |
1:8aa5cdb4ab67 | 98 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 99 | //an instance of MicroBitStorage used to store sysAttrs from softdevice |
| Jonathan Austin |
1:8aa5cdb4ab67 | 100 | MicroBitStorage* storage; |
| Jonathan Austin |
1:8aa5cdb4ab67 | 101 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 102 | /** |
| Jonathan Austin |
1:8aa5cdb4ab67 | 103 | * Constructor. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 104 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 105 | * Configure and manage the micro:bit's Bluetooth Low Energy (BLE) stack. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 106 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 107 | * @param _storage an instance of MicroBitStorage used to persist sys attribute information. (This is required for compatability with iOS). |
| Jonathan Austin |
1:8aa5cdb4ab67 | 108 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 109 | * @note The BLE stack *cannot* be brought up in a static context (the software simply hangs or corrupts itself). |
| Jonathan Austin |
1:8aa5cdb4ab67 | 110 | * Hence, the init() member function should be used to initialise the BLE stack. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 111 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 112 | MicroBitBLEManager(MicroBitStorage& _storage); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 113 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 114 | /** |
| Jonathan Austin |
1:8aa5cdb4ab67 | 115 | * Constructor. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 116 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 117 | * Configure and manage the micro:bit's Bluetooth Low Energy (BLE) stack. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 118 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 119 | * @note The BLE stack *cannot* be brought up in a static context (the software simply hangs or corrupts itself). |
| Jonathan Austin |
1:8aa5cdb4ab67 | 120 | * Hence, the init() member function should be used to initialise the BLE stack. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 121 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 122 | MicroBitBLEManager(); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 123 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 124 | /** |
| Jonathan Austin |
1:8aa5cdb4ab67 | 125 | * Post constructor initialisation method as the BLE stack cannot be brought |
| Jonathan Austin |
1:8aa5cdb4ab67 | 126 | * up in a static context. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 127 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 128 | * @param deviceName The name used when advertising |
| Jonathan Austin |
1:8aa5cdb4ab67 | 129 | * @param serialNumber The serial number exposed by the device information service |
| Jonathan Austin |
1:8aa5cdb4ab67 | 130 | * @param messageBus An instance of an EventModel, used during pairing. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 131 | * @param enableBonding If true, the security manager enabled bonding. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 132 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 133 | * @code |
| Jonathan Austin |
1:8aa5cdb4ab67 | 134 | * bleManager.init(uBit.getName(), uBit.getSerial(), uBit.messageBus, true); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 135 | * @endcode |
| Jonathan Austin |
1:8aa5cdb4ab67 | 136 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 137 | void init(ManagedString deviceName, ManagedString serialNumber, EventModel& messageBus, bool enableBonding); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 138 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 139 | /** |
| Jonathan Austin |
1:8aa5cdb4ab67 | 140 | * Change the output power level of the transmitter to the given value. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 141 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 142 | * @param power a value in the range 0..7, where 0 is the lowest power and 7 is the highest. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 143 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 144 | * @return MICROBIT_OK on success, or MICROBIT_INVALID_PARAMETER if the value is out of range. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 145 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 146 | * @code |
| Jonathan Austin |
1:8aa5cdb4ab67 | 147 | * // maximum transmission power. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 148 | * bleManager.setTransmitPower(7); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 149 | * @endcode |
| Jonathan Austin |
1:8aa5cdb4ab67 | 150 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 151 | int setTransmitPower(int power); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 152 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 153 | /** |
| Jonathan Austin |
1:8aa5cdb4ab67 | 154 | * Enter pairing mode. This is mode is called to initiate pairing, and to enable FOTA programming |
| Jonathan Austin |
1:8aa5cdb4ab67 | 155 | * of the micro:bit in cases where BLE is disabled during normal operation. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 156 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 157 | * @param display An instance of MicroBitDisplay used when displaying pairing information. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 158 | * @param authorizationButton The button to use to authorise a pairing request. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 159 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 160 | * @code |
| Jonathan Austin |
1:8aa5cdb4ab67 | 161 | * // initiate pairing mode |
| Jonathan Austin |
1:8aa5cdb4ab67 | 162 | * bleManager.pairingMode(uBit.display, uBit.buttonA); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 163 | * @endcode |
| Jonathan Austin |
1:8aa5cdb4ab67 | 164 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 165 | void pairingMode(MicroBitDisplay &display, MicroBitButton &authorisationButton); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 166 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 167 | /** |
| Jonathan Austin |
1:8aa5cdb4ab67 | 168 | * When called, the micro:bit will begin advertising for a predefined period, |
| Jonathan Austin |
1:8aa5cdb4ab67 | 169 | * MICROBIT_BLE_ADVERTISING_TIMEOUT seconds to bonded devices. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 170 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 171 | void advertise(); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 172 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 173 | /** |
| Jonathan Austin |
1:8aa5cdb4ab67 | 174 | * Determines the number of devices currently bonded with this micro:bit. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 175 | * @return The number of active bonds. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 176 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 177 | int getBondCount(); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 178 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 179 | /** |
| Jonathan Austin |
1:8aa5cdb4ab67 | 180 | * A request to pair has been received from a BLE device. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 181 | * If we're in pairing mode, display the passkey to the user. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 182 | * Also, purge the bonding table if it has reached capacity. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 183 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 184 | * @note for internal use only. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 185 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 186 | void pairingRequested(ManagedString passKey); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 187 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 188 | /** |
| Jonathan Austin |
1:8aa5cdb4ab67 | 189 | * A pairing request has been sucessfully completed. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 190 | * If we're in pairing mode, display a success or failure message. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 191 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 192 | * @note for internal use only. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 193 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 194 | void pairingComplete(bool success); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 195 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 196 | /** |
| Jonathan Austin |
1:8aa5cdb4ab67 | 197 | * Periodic callback in thread context. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 198 | * We use this here purely to safely issue a disconnect operation after a pairing operation is complete. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 199 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 200 | void idleTick(); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 201 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 202 | private: |
| Jonathan Austin |
1:8aa5cdb4ab67 | 203 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 204 | /** |
| Jonathan Austin |
1:8aa5cdb4ab67 | 205 | * Displays the device's ID code as a histogram on the provided MicroBitDisplay instance. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 206 | * |
| Jonathan Austin |
1:8aa5cdb4ab67 | 207 | * @param display The display instance used for displaying the histogram. |
| Jonathan Austin |
1:8aa5cdb4ab67 | 208 | */ |
| Jonathan Austin |
1:8aa5cdb4ab67 | 209 | void showNameHistogram(MicroBitDisplay &display); |
| Jonathan Austin |
1:8aa5cdb4ab67 | 210 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 211 | int pairingStatus; |
| Jonathan Austin |
1:8aa5cdb4ab67 | 212 | ManagedString passKey; |
| Jonathan Austin |
1:8aa5cdb4ab67 | 213 | ManagedString deviceName; |
| Jonathan Austin |
1:8aa5cdb4ab67 | 214 | |
| Jonathan Austin |
1:8aa5cdb4ab67 | 215 | }; |
| Jonathan Austin |
1:8aa5cdb4ab67 | 216 | |
| LancasterUniversity | 3:d86a4ddc1867 | 217 | #endif |