Neil Johnson / microbit-ARMBand

Official Sheffield ARMBand micro:bit program

microbit/microbit-dal/source/bluetooth/MicroBitIOPinService.cpp@0:b9164b348919, 2016-10-17 (annotated)

Committer:
MrBedfordVan
Date:
Mon Oct 17 12:41:20 2016 +0000
Revision:
0:b9164b348919
Official Sheffield ARMBand Micro:bit program

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MrBedfordVan 0:b9164b348919 1 /*
MrBedfordVan 0:b9164b348919 2 The MIT License (MIT)
MrBedfordVan 0:b9164b348919 3
MrBedfordVan 0:b9164b348919 4 Copyright (c) 2016 British Broadcasting Corporation.
MrBedfordVan 0:b9164b348919 5 This software is provided by Lancaster University by arrangement with the BBC.
MrBedfordVan 0:b9164b348919 6
MrBedfordVan 0:b9164b348919 7 Permission is hereby granted, free of charge, to any person obtaining a
MrBedfordVan 0:b9164b348919 8 copy of this software and associated documentation files (the "Software"),
MrBedfordVan 0:b9164b348919 9 to deal in the Software without restriction, including without limitation
MrBedfordVan 0:b9164b348919 10 the rights to use, copy, modify, merge, publish, distribute, sublicense,
MrBedfordVan 0:b9164b348919 11 and/or sell copies of the Software, and to permit persons to whom the
MrBedfordVan 0:b9164b348919 12 Software is furnished to do so, subject to the following conditions:
MrBedfordVan 0:b9164b348919 13
MrBedfordVan 0:b9164b348919 14 The above copyright notice and this permission notice shall be included in
MrBedfordVan 0:b9164b348919 15 all copies or substantial portions of the Software.
MrBedfordVan 0:b9164b348919 16
MrBedfordVan 0:b9164b348919 17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
MrBedfordVan 0:b9164b348919 18 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
MrBedfordVan 0:b9164b348919 19 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
MrBedfordVan 0:b9164b348919 20 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
MrBedfordVan 0:b9164b348919 21 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
MrBedfordVan 0:b9164b348919 22 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
MrBedfordVan 0:b9164b348919 23 DEALINGS IN THE SOFTWARE.
MrBedfordVan 0:b9164b348919 24 */
MrBedfordVan 0:b9164b348919 25
MrBedfordVan 0:b9164b348919 26 /**
MrBedfordVan 0:b9164b348919 27 * Class definition for the custom MicroBit IOPin Service.
MrBedfordVan 0:b9164b348919 28 * Provides a BLE service to remotely read the state of the I/O Pin, and configure its behaviour.
MrBedfordVan 0:b9164b348919 29 */
MrBedfordVan 0:b9164b348919 30 #include "MicroBitConfig.h"
MrBedfordVan 0:b9164b348919 31 #include "ble/UUID.h"
MrBedfordVan 0:b9164b348919 32
MrBedfordVan 0:b9164b348919 33 #include "MicroBitIOPinService.h"
MrBedfordVan 0:b9164b348919 34 #include "MicroBitFiber.h"
MrBedfordVan 0:b9164b348919 35
MrBedfordVan 0:b9164b348919 36 /**
MrBedfordVan 0:b9164b348919 37 * Constructor.
MrBedfordVan 0:b9164b348919 38 * Create a representation of the IOPinService
MrBedfordVan 0:b9164b348919 39 * @param _ble The instance of a BLE device that we're running on.
MrBedfordVan 0:b9164b348919 40 * @param _io An instance of MicroBitIO that this service will use to perform
MrBedfordVan 0:b9164b348919 41 * I/O operations.
MrBedfordVan 0:b9164b348919 42 */
MrBedfordVan 0:b9164b348919 43 MicroBitIOPinService::MicroBitIOPinService(BLEDevice &_ble, MicroBitIO &_io) :
MrBedfordVan 0:b9164b348919 44 ble(_ble), io(_io)
MrBedfordVan 0:b9164b348919 45 {
MrBedfordVan 0:b9164b348919 46 // Create the AD characteristic, that defines whether each pin is treated as analogue or digital
MrBedfordVan 0:b9164b348919 47 GattCharacteristic ioPinServiceADCharacteristic(MicroBitIOPinServiceADConfigurationUUID, (uint8_t *)&ioPinServiceADCharacteristicBuffer, 0, sizeof(ioPinServiceADCharacteristicBuffer), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE);
MrBedfordVan 0:b9164b348919 48
MrBedfordVan 0:b9164b348919 49 // Create the IO characteristic, that defines whether each pin is treated as input or output
MrBedfordVan 0:b9164b348919 50 GattCharacteristic ioPinServiceIOCharacteristic(MicroBitIOPinServiceIOConfigurationUUID, (uint8_t *)&ioPinServiceIOCharacteristicBuffer, 0, sizeof(ioPinServiceIOCharacteristicBuffer), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE);
MrBedfordVan 0:b9164b348919 51
MrBedfordVan 0:b9164b348919 52 // Create the Data characteristic, that allows the actual read and write operations.
MrBedfordVan 0:b9164b348919 53 ioPinServiceDataCharacteristic = new GattCharacteristic(MicroBitIOPinServiceDataUUID, (uint8_t *)ioPinServiceDataCharacteristicBuffer, 0, sizeof(ioPinServiceDataCharacteristicBuffer), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
MrBedfordVan 0:b9164b348919 54
MrBedfordVan 0:b9164b348919 55 ioPinServiceDataCharacteristic->setReadAuthorizationCallback(this, &MicroBitIOPinService::onDataRead);
MrBedfordVan 0:b9164b348919 56
MrBedfordVan 0:b9164b348919 57 ioPinServiceADCharacteristicBuffer = 0;
MrBedfordVan 0:b9164b348919 58 ioPinServiceIOCharacteristicBuffer = 0;
MrBedfordVan 0:b9164b348919 59 memset(ioPinServiceIOData, 0, sizeof(ioPinServiceIOData));
MrBedfordVan 0:b9164b348919 60
MrBedfordVan 0:b9164b348919 61 // Set default security requirements
MrBedfordVan 0:b9164b348919 62 ioPinServiceADCharacteristic.requireSecurity(SecurityManager::MICROBIT_BLE_SECURITY_LEVEL);
MrBedfordVan 0:b9164b348919 63 ioPinServiceIOCharacteristic.requireSecurity(SecurityManager::MICROBIT_BLE_SECURITY_LEVEL);
MrBedfordVan 0:b9164b348919 64 ioPinServiceDataCharacteristic->requireSecurity(SecurityManager::MICROBIT_BLE_SECURITY_LEVEL);
MrBedfordVan 0:b9164b348919 65
MrBedfordVan 0:b9164b348919 66 GattCharacteristic *characteristics[] = {&ioPinServiceADCharacteristic, &ioPinServiceIOCharacteristic, ioPinServiceDataCharacteristic};
MrBedfordVan 0:b9164b348919 67 GattService service(MicroBitIOPinServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
MrBedfordVan 0:b9164b348919 68
MrBedfordVan 0:b9164b348919 69 ble.addService(service);
MrBedfordVan 0:b9164b348919 70
MrBedfordVan 0:b9164b348919 71 ioPinServiceADCharacteristicHandle = ioPinServiceADCharacteristic.getValueHandle();
MrBedfordVan 0:b9164b348919 72 ioPinServiceIOCharacteristicHandle = ioPinServiceIOCharacteristic.getValueHandle();
MrBedfordVan 0:b9164b348919 73
MrBedfordVan 0:b9164b348919 74 ble.gattServer().write(ioPinServiceADCharacteristicHandle, (const uint8_t *)&ioPinServiceADCharacteristicBuffer, sizeof(ioPinServiceADCharacteristicBuffer));
MrBedfordVan 0:b9164b348919 75 ble.gattServer().write(ioPinServiceIOCharacteristicHandle, (const uint8_t *)&ioPinServiceIOCharacteristicBuffer, sizeof(ioPinServiceIOCharacteristicBuffer));
MrBedfordVan 0:b9164b348919 76
MrBedfordVan 0:b9164b348919 77 ble.onDataWritten(this, &MicroBitIOPinService::onDataWritten);
MrBedfordVan 0:b9164b348919 78 fiber_add_idle_component(this);
MrBedfordVan 0:b9164b348919 79 }
MrBedfordVan 0:b9164b348919 80
MrBedfordVan 0:b9164b348919 81 /**
MrBedfordVan 0:b9164b348919 82 * Determines if the given pin was configured as a digital pin by the BLE ADPinConfigurationCharacterisitic.
MrBedfordVan 0:b9164b348919 83 *
MrBedfordVan 0:b9164b348919 84 * @param i the enumeration of the pin to test
MrBedfordVan 0:b9164b348919 85 * @return 1 if this pin is configured as digital, 0 otherwise
MrBedfordVan 0:b9164b348919 86 */
MrBedfordVan 0:b9164b348919 87 int MicroBitIOPinService::isDigital(int i)
MrBedfordVan 0:b9164b348919 88 {
MrBedfordVan 0:b9164b348919 89 return ((ioPinServiceADCharacteristicBuffer & (1 << i)) == 0);
MrBedfordVan 0:b9164b348919 90 }
MrBedfordVan 0:b9164b348919 91
MrBedfordVan 0:b9164b348919 92 /**
MrBedfordVan 0:b9164b348919 93 * Determines if the given pin was configured as an analog pin by the BLE ADPinConfigurationCharacterisitic.
MrBedfordVan 0:b9164b348919 94 *
MrBedfordVan 0:b9164b348919 95 * @param i the enumeration of the pin to test
MrBedfordVan 0:b9164b348919 96 * @return 1 if this pin is configured as analog, 0 otherwise
MrBedfordVan 0:b9164b348919 97 */
MrBedfordVan 0:b9164b348919 98 int MicroBitIOPinService::isAnalog(int i)
MrBedfordVan 0:b9164b348919 99 {
MrBedfordVan 0:b9164b348919 100 return ((ioPinServiceADCharacteristicBuffer & (1 << i)) != 0);
MrBedfordVan 0:b9164b348919 101 }
MrBedfordVan 0:b9164b348919 102
MrBedfordVan 0:b9164b348919 103 /**
MrBedfordVan 0:b9164b348919 104 * Determines if the given pin was configured as an input by the BLE IOPinConfigurationCharacterisitic.
MrBedfordVan 0:b9164b348919 105 *
MrBedfordVan 0:b9164b348919 106 * @param i the enumeration of the pin to test
MrBedfordVan 0:b9164b348919 107 * @return 1 if this pin is configured as an input, 0 otherwise
MrBedfordVan 0:b9164b348919 108 */
MrBedfordVan 0:b9164b348919 109 int MicroBitIOPinService::isInput(int i)
MrBedfordVan 0:b9164b348919 110 {
MrBedfordVan 0:b9164b348919 111 return ((ioPinServiceIOCharacteristicBuffer & (1 << i)) != 0);
MrBedfordVan 0:b9164b348919 112 }
MrBedfordVan 0:b9164b348919 113
MrBedfordVan 0:b9164b348919 114 /**
MrBedfordVan 0:b9164b348919 115 * Determines if the given pin was configured as output by the BLE IOPinConfigurationCharacterisitic.
MrBedfordVan 0:b9164b348919 116 *
MrBedfordVan 0:b9164b348919 117 * @param i the enumeration of the pin to test
MrBedfordVan 0:b9164b348919 118 * @return 1 if this pin is configured as an output, 0 otherwise
MrBedfordVan 0:b9164b348919 119 */
MrBedfordVan 0:b9164b348919 120 int MicroBitIOPinService::isOutput(int i)
MrBedfordVan 0:b9164b348919 121 {
MrBedfordVan 0:b9164b348919 122 return ((ioPinServiceIOCharacteristicBuffer & (1 << i)) == 0);
MrBedfordVan 0:b9164b348919 123 }
MrBedfordVan 0:b9164b348919 124
MrBedfordVan 0:b9164b348919 125 /**
MrBedfordVan 0:b9164b348919 126 * Callback. Invoked when any of our attributes are written via BLE.
MrBedfordVan 0:b9164b348919 127 */
MrBedfordVan 0:b9164b348919 128 void MicroBitIOPinService::onDataWritten(const GattWriteCallbackParams *params)
MrBedfordVan 0:b9164b348919 129 {
MrBedfordVan 0:b9164b348919 130 // Check for writes to the IO configuration characteristic
MrBedfordVan 0:b9164b348919 131 if (params->handle == ioPinServiceIOCharacteristicHandle && params->len >= sizeof(ioPinServiceIOCharacteristicBuffer))
MrBedfordVan 0:b9164b348919 132 {
MrBedfordVan 0:b9164b348919 133 uint32_t *value = (uint32_t *)params->data;
MrBedfordVan 0:b9164b348919 134
MrBedfordVan 0:b9164b348919 135 // Our IO configuration may be changing... read the new value, and push it back into the BLE stack.
MrBedfordVan 0:b9164b348919 136 ioPinServiceIOCharacteristicBuffer = *value;
MrBedfordVan 0:b9164b348919 137 ble.gattServer().write(ioPinServiceIOCharacteristicHandle, (const uint8_t *)&ioPinServiceIOCharacteristicBuffer, sizeof(ioPinServiceIOCharacteristicBuffer));
MrBedfordVan 0:b9164b348919 138
MrBedfordVan 0:b9164b348919 139 // Also, drop any selected pins into input mode, so we can pick up changes later
MrBedfordVan 0:b9164b348919 140 for (int i=0; i < MICROBIT_IO_PIN_SERVICE_PINCOUNT; i++)
MrBedfordVan 0:b9164b348919 141 {
MrBedfordVan 0:b9164b348919 142 if(isDigital(i) && isInput(i))
MrBedfordVan 0:b9164b348919 143 io.pin[i].getDigitalValue();
MrBedfordVan 0:b9164b348919 144 //MicroBitIOPins[i]->getDigitalValue();
MrBedfordVan 0:b9164b348919 145
MrBedfordVan 0:b9164b348919 146 if(isAnalog(i) && isInput(i))
MrBedfordVan 0:b9164b348919 147 io.pin[i].getAnalogValue();
MrBedfordVan 0:b9164b348919 148 //MicroBitIOPins[i]->getAnalogValue();
MrBedfordVan 0:b9164b348919 149 }
MrBedfordVan 0:b9164b348919 150 }
MrBedfordVan 0:b9164b348919 151
MrBedfordVan 0:b9164b348919 152 // Check for writes to the IO configuration characteristic
MrBedfordVan 0:b9164b348919 153 if (params->handle == ioPinServiceADCharacteristicHandle && params->len >= sizeof(ioPinServiceADCharacteristicBuffer))
MrBedfordVan 0:b9164b348919 154 {
MrBedfordVan 0:b9164b348919 155 uint32_t *value = (uint32_t *)params->data;
MrBedfordVan 0:b9164b348919 156
MrBedfordVan 0:b9164b348919 157 // Our IO configuration may be changing... read the new value, and push it back into the BLE stack.
MrBedfordVan 0:b9164b348919 158 ioPinServiceADCharacteristicBuffer = *value;
MrBedfordVan 0:b9164b348919 159 ble.gattServer().write(ioPinServiceADCharacteristicHandle, (const uint8_t *)&ioPinServiceADCharacteristicBuffer, sizeof(ioPinServiceADCharacteristicBuffer));
MrBedfordVan 0:b9164b348919 160
MrBedfordVan 0:b9164b348919 161 // Also, drop any selected pins into input mode, so we can pick up changes later
MrBedfordVan 0:b9164b348919 162 for (int i=0; i < MICROBIT_IO_PIN_SERVICE_PINCOUNT; i++)
MrBedfordVan 0:b9164b348919 163 {
MrBedfordVan 0:b9164b348919 164 if(isDigital(i) && isInput(i))
MrBedfordVan 0:b9164b348919 165 io.pin[i].getDigitalValue();
MrBedfordVan 0:b9164b348919 166 //MicroBitIOPins[i]->getDigitalValue();
MrBedfordVan 0:b9164b348919 167
MrBedfordVan 0:b9164b348919 168 if(isAnalog(i) && isInput(i))
MrBedfordVan 0:b9164b348919 169 io.pin[i].getAnalogValue();
MrBedfordVan 0:b9164b348919 170 //MicroBitIOPins[i]->getAnalogValue();
MrBedfordVan 0:b9164b348919 171 }
MrBedfordVan 0:b9164b348919 172 }
MrBedfordVan 0:b9164b348919 173
MrBedfordVan 0:b9164b348919 174 if (params->handle == ioPinServiceDataCharacteristic->getValueHandle())
MrBedfordVan 0:b9164b348919 175 {
MrBedfordVan 0:b9164b348919 176 // We have some pin data to change...
MrBedfordVan 0:b9164b348919 177 uint16_t len = params->len;
MrBedfordVan 0:b9164b348919 178 IOData *data = (IOData *)params->data;
MrBedfordVan 0:b9164b348919 179
MrBedfordVan 0:b9164b348919 180 // There may be multiple write operaitons... take each in turn and update the pin values
MrBedfordVan 0:b9164b348919 181 while (len >= sizeof(IOData))
MrBedfordVan 0:b9164b348919 182 {
MrBedfordVan 0:b9164b348919 183 if (isOutput(data->pin))
MrBedfordVan 0:b9164b348919 184 {
MrBedfordVan 0:b9164b348919 185 if (isDigital(data->pin))
MrBedfordVan 0:b9164b348919 186 io.pin[data->pin].setDigitalValue(data->value);
MrBedfordVan 0:b9164b348919 187 //MicroBitIOPins[data->pin]->setDigitalValue(data->value);
MrBedfordVan 0:b9164b348919 188 else
MrBedfordVan 0:b9164b348919 189 io.pin[data->pin].setAnalogValue(data->value*4);
MrBedfordVan 0:b9164b348919 190 //MicroBitIOPins[data->pin]->setAnalogValue(data->value*4);
MrBedfordVan 0:b9164b348919 191 }
MrBedfordVan 0:b9164b348919 192
MrBedfordVan 0:b9164b348919 193 data++;
MrBedfordVan 0:b9164b348919 194 len -= sizeof(IOData);
MrBedfordVan 0:b9164b348919 195 }
MrBedfordVan 0:b9164b348919 196 }
MrBedfordVan 0:b9164b348919 197 }
MrBedfordVan 0:b9164b348919 198
MrBedfordVan 0:b9164b348919 199 /**
MrBedfordVan 0:b9164b348919 200 * Callback. invoked when the BLE data characteristic is read.
MrBedfordVan 0:b9164b348919 201 *
MrBedfordVan 0:b9164b348919 202 * Reads all the pins marked as inputs, and updates the data stored in the characteristic.
MrBedfordVan 0:b9164b348919 203 */
MrBedfordVan 0:b9164b348919 204 void MicroBitIOPinService::onDataRead(GattReadAuthCallbackParams *params)
MrBedfordVan 0:b9164b348919 205 {
MrBedfordVan 0:b9164b348919 206 if (params->handle == ioPinServiceDataCharacteristic->getValueHandle())
MrBedfordVan 0:b9164b348919 207 {
MrBedfordVan 0:b9164b348919 208
MrBedfordVan 0:b9164b348919 209 // Scan through all pins that our BLE client may be listening for. If any have changed value, update the BLE characterisitc, and NOTIFY our client.
MrBedfordVan 0:b9164b348919 210 int pairs = 0;
MrBedfordVan 0:b9164b348919 211
MrBedfordVan 0:b9164b348919 212 for (int i=0; i < MICROBIT_IO_PIN_SERVICE_PINCOUNT; i++)
MrBedfordVan 0:b9164b348919 213 {
MrBedfordVan 0:b9164b348919 214 if (isInput(i))
MrBedfordVan 0:b9164b348919 215 {
MrBedfordVan 0:b9164b348919 216 uint8_t value;
MrBedfordVan 0:b9164b348919 217
MrBedfordVan 0:b9164b348919 218 if (isDigital(i))
MrBedfordVan 0:b9164b348919 219 value = io.pin[i].getDigitalValue();
MrBedfordVan 0:b9164b348919 220 //value = MicroBitIOPins[i]->getDigitalValue();
MrBedfordVan 0:b9164b348919 221 else
MrBedfordVan 0:b9164b348919 222 value = io.pin[i].getAnalogValue();
MrBedfordVan 0:b9164b348919 223 //value = MicroBitIOPins[i]->getAnalogValue();
MrBedfordVan 0:b9164b348919 224
MrBedfordVan 0:b9164b348919 225 ioPinServiceIOData[i] = value;
MrBedfordVan 0:b9164b348919 226 ioPinServiceDataCharacteristicBuffer[pairs].pin = i;
MrBedfordVan 0:b9164b348919 227 ioPinServiceDataCharacteristicBuffer[pairs].value = value;
MrBedfordVan 0:b9164b348919 228
MrBedfordVan 0:b9164b348919 229 pairs++;
MrBedfordVan 0:b9164b348919 230
MrBedfordVan 0:b9164b348919 231 if (pairs >= MICROBIT_IO_PIN_SERVICE_DATA_SIZE)
MrBedfordVan 0:b9164b348919 232 break;
MrBedfordVan 0:b9164b348919 233 }
MrBedfordVan 0:b9164b348919 234 }
MrBedfordVan 0:b9164b348919 235
MrBedfordVan 0:b9164b348919 236 // If there's any data, issue a BLE notification.
MrBedfordVan 0:b9164b348919 237 if (pairs > 0)
MrBedfordVan 0:b9164b348919 238 ble.gattServer().notify(ioPinServiceDataCharacteristic->getValueHandle(), (uint8_t *)ioPinServiceDataCharacteristicBuffer, pairs * sizeof(IOData));
MrBedfordVan 0:b9164b348919 239 }
MrBedfordVan 0:b9164b348919 240 }
MrBedfordVan 0:b9164b348919 241
MrBedfordVan 0:b9164b348919 242
MrBedfordVan 0:b9164b348919 243 /**
MrBedfordVan 0:b9164b348919 244 * Periodic callback from MicroBit scheduler.
MrBedfordVan 0:b9164b348919 245 *
MrBedfordVan 0:b9164b348919 246 * Check if any of the pins we're watching need updating. Notify any connected
MrBedfordVan 0:b9164b348919 247 * device with any changes.
MrBedfordVan 0:b9164b348919 248 */
MrBedfordVan 0:b9164b348919 249 void MicroBitIOPinService::idleTick()
MrBedfordVan 0:b9164b348919 250 {
MrBedfordVan 0:b9164b348919 251 // If we're not we're connected, then there's nothing to do...
MrBedfordVan 0:b9164b348919 252 if (!ble.getGapState().connected)
MrBedfordVan 0:b9164b348919 253 return;
MrBedfordVan 0:b9164b348919 254
MrBedfordVan 0:b9164b348919 255 // Scan through all pins that our BLE client may be listening for. If any have changed value, update the BLE characterisitc, and NOTIFY our client.
MrBedfordVan 0:b9164b348919 256 int pairs = 0;
MrBedfordVan 0:b9164b348919 257
MrBedfordVan 0:b9164b348919 258 for (int i=0; i < MICROBIT_IO_PIN_SERVICE_PINCOUNT; i++)
MrBedfordVan 0:b9164b348919 259 {
MrBedfordVan 0:b9164b348919 260 if (isInput(i))
MrBedfordVan 0:b9164b348919 261 {
MrBedfordVan 0:b9164b348919 262 uint8_t value;
MrBedfordVan 0:b9164b348919 263
MrBedfordVan 0:b9164b348919 264 if (isDigital(i))
MrBedfordVan 0:b9164b348919 265 value = io.pin[i].getDigitalValue();
MrBedfordVan 0:b9164b348919 266 //value = MicroBitIOPins[i]->getDigitalValue();
MrBedfordVan 0:b9164b348919 267 else
MrBedfordVan 0:b9164b348919 268 value = io.pin[i].getAnalogValue();
MrBedfordVan 0:b9164b348919 269 //value = MicroBitIOPins[i]->getAnalogValue();
MrBedfordVan 0:b9164b348919 270
MrBedfordVan 0:b9164b348919 271 // If the data has changed, send an update.
MrBedfordVan 0:b9164b348919 272 if (value != ioPinServiceIOData[i])
MrBedfordVan 0:b9164b348919 273 {
MrBedfordVan 0:b9164b348919 274 ioPinServiceIOData[i] = value;
MrBedfordVan 0:b9164b348919 275
MrBedfordVan 0:b9164b348919 276 ioPinServiceDataCharacteristicBuffer[pairs].pin = i;
MrBedfordVan 0:b9164b348919 277 ioPinServiceDataCharacteristicBuffer[pairs].value = value;
MrBedfordVan 0:b9164b348919 278
MrBedfordVan 0:b9164b348919 279 pairs++;
MrBedfordVan 0:b9164b348919 280
MrBedfordVan 0:b9164b348919 281 if (pairs >= MICROBIT_IO_PIN_SERVICE_DATA_SIZE)
MrBedfordVan 0:b9164b348919 282 break;
MrBedfordVan 0:b9164b348919 283 }
MrBedfordVan 0:b9164b348919 284 }
MrBedfordVan 0:b9164b348919 285 }
MrBedfordVan 0:b9164b348919 286
MrBedfordVan 0:b9164b348919 287 // If there were any changes, issue a BLE notification.
MrBedfordVan 0:b9164b348919 288 if (pairs > 0)
MrBedfordVan 0:b9164b348919 289 ble.gattServer().notify(ioPinServiceDataCharacteristic->getValueHandle(), (uint8_t *)ioPinServiceDataCharacteristicBuffer, pairs * sizeof(IOData));
MrBedfordVan 0:b9164b348919 290 }
MrBedfordVan 0:b9164b348919 291
MrBedfordVan 0:b9164b348919 292 const uint8_t MicroBitIOPinServiceUUID[] = {
MrBedfordVan 0:b9164b348919 293 0xe9,0x5d,0x12,0x7b,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
MrBedfordVan 0:b9164b348919 294 };
MrBedfordVan 0:b9164b348919 295
MrBedfordVan 0:b9164b348919 296 const uint8_t MicroBitIOPinServiceIOConfigurationUUID[] = {
MrBedfordVan 0:b9164b348919 297 0xe9,0x5d,0xb9,0xfe,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
MrBedfordVan 0:b9164b348919 298 };
MrBedfordVan 0:b9164b348919 299
MrBedfordVan 0:b9164b348919 300 const uint8_t MicroBitIOPinServiceADConfigurationUUID[] = {
MrBedfordVan 0:b9164b348919 301 0xe9,0x5d,0x58,0x99,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
MrBedfordVan 0:b9164b348919 302 };
MrBedfordVan 0:b9164b348919 303
MrBedfordVan 0:b9164b348919 304 const uint8_t MicroBitIOPinServiceDataUUID[] = {
MrBedfordVan 0:b9164b348919 305 0xe9,0x5d,0x8d,0x00,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
MrBedfordVan 0:b9164b348919 306 };
MrBedfordVan 0:b9164b348919 307
MrBedfordVan 0:b9164b348919 308 /*
MrBedfordVan 0:b9164b348919 309 MicroBitPin * const MicroBitIOPins[] = {
MrBedfordVan 0:b9164b348919 310 &uBit.io.P0,
MrBedfordVan 0:b9164b348919 311 &uBit.io.P1,
MrBedfordVan 0:b9164b348919 312 &uBit.io.P2,
MrBedfordVan 0:b9164b348919 313 &uBit.io.P3,
MrBedfordVan 0:b9164b348919 314 &uBit.io.P4,
MrBedfordVan 0:b9164b348919 315 &uBit.io.P5,
MrBedfordVan 0:b9164b348919 316 &uBit.io.P6,
MrBedfordVan 0:b9164b348919 317 &uBit.io.P7,
MrBedfordVan 0:b9164b348919 318 &uBit.io.P8,
MrBedfordVan 0:b9164b348919 319 &uBit.io.P9,
MrBedfordVan 0:b9164b348919 320 &uBit.io.P10,
MrBedfordVan 0:b9164b348919 321 &uBit.io.P11,
MrBedfordVan 0:b9164b348919 322 &uBit.io.P12,
MrBedfordVan 0:b9164b348919 323 &uBit.io.P13,
MrBedfordVan 0:b9164b348919 324 &uBit.io.P14,
MrBedfordVan 0:b9164b348919 325 &uBit.io.P15,
MrBedfordVan 0:b9164b348919 326 &uBit.io.P16,
MrBedfordVan 0:b9164b348919 327 &uBit.io.P19,
MrBedfordVan 0:b9164b348919 328 &uBit.io.P20
MrBedfordVan 0:b9164b348919 329 };
MrBedfordVan 0:b9164b348919 330 */