50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
#include "MicroBitConfig.h"
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#include "ble/UUID.h"
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#include "BLEHF2Service.h"
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#include "MicroBitEvent.h"
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BLEHF2Service::BLEHF2Service(BLEDevice &_ble) :
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ble(_ble)
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{
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GattCharacteristic txCharacteristic(BLEHF2TxCharacteristicUUID, (uint8_t *)&txCharacteristicMessage, 0,
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sizeof(txCharacteristicMessage), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
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// Initialise our characteristic values.
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memset(&txCharacteristicMessage, 0, sizeof(txCharacteristicMessage));
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// Set default security requirements
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txCharacteristic.requireSecurity(SecurityManager::MICROBIT_BLE_SECURITY_LEVEL);
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// setup GATT table
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GattCharacteristic *characteristics[] = {&txCharacteristic};
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GattService service(BLEHF2ServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
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ble.addService(service);
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// retreive handles
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txCharacteristicHandle = txCharacteristic.getValueHandle();
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// initialize data
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ble.gattServer().write(txCharacteristicHandle,(uint8_t *)&txCharacteristicMessage, sizeof(txCharacteristicMessage));
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}
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void BLEHF2Service::sendSerial(const char *data, int len, bool isError) {
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if (ble.getGapState().connected)
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{
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int32_t sent = 0;
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while(sent < len) {
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int32_t n = min(BLEHF2_DATA_LENGTH, len - sent);
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txCharacteristicMessage.command = (isError ? BLEHF2_FLAG_SERIAL_OUT : BLEHF2_FLAG_SERIAL_ERR) | n;
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memcpy(&txCharacteristicMessage.data, data + sent, n);
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ble.gattServer().notify(txCharacteristicHandle,(uint8_t *)&txCharacteristicMessage, sizeof(txCharacteristicMessage));
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sent += n;
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}
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}
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}
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const uint8_t BLEHF2ServiceUUID[] = {
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0xb1,0x12,0xf5,0xe6,0x26,0x79,0x30,0xda,0xa2,0x6e,0x02,0x73,0xb6,0x04,0x38,0x49
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};
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const uint8_t BLEHF2TxCharacteristicUUID[] = {
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0xb1,0x12,0xf5,0xe6,0x26,0x79,0x30,0xda,0xa2,0x6e,0x02,0x73,0xb6,0x04,0x38,0x4a
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}; |