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add support for onDataWritten for the URIValue characteristic.

master
Rohit Grover 2014-11-27 09:53:43 +00:00
parent 4708c024fa
commit 6d5a5e36b6
1 changed files with 29 additions and 3 deletions
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32
services/URIBeacon2Service.h
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@ -60,8 +60,32 @@ public:
ble.addService(beaconControlService);
serviceAdded = true;
ble.onDataWritten(this, &URIBeacon2Service::onDataWritten);
}
/**
* This callback allows the DFU service to receive the initial trigger to
* handover control to the bootloader; but first the application is given a
* chance to clean up.
*/
virtual void onDataWritten(const GattCharacteristicWriteCBParams *params) {
if (params->charHandle == uriDataChar.getValueAttribute().getHandle()) {
/* we don't handle very large writes at the moment. */
if ((params->offset != 0) || (params->len > MAX_SIZE_URI_DATA_CHAR_VALUE)) {
return;
}
uriDataLength = params->len;
memcpy(uriDataValue, params->data, uriDataLength);
setup();
ble.setAdvertisingPayload();
}
}
/**
* for debugging only
*/
void dumpEncodedSeviceData() const {
printf("encoded: '");
for (unsigned i = 0; i < payloadIndex; i++) {
@ -72,9 +96,9 @@ public:
private:
void setup(void) {
payloadIndex = 0;
const uint8_t BEACON_UUID[] = {0xD8, 0xFE};
payloadIndex = 0;
serviceDataPayload[payloadIndex++] = BEACON_UUID[0];
serviceDataPayload[payloadIndex++] = BEACON_UUID[1];
serviceDataPayload[payloadIndex++] = flags;
@ -84,9 +108,11 @@ private:
size_t sizeofURLData = uriDataLength;
size_t encodedBytes = encodeURISchemePrefix(urlData, sizeofURLData) + encodeURI(urlData, sizeofURLData);
ble.setTxPower(power);
ble.clearAdvertisingPayload();
ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_UUID, sizeof(BEACON_UUID));
ble.accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceDataPayload, encodedBytes + 4);
ble.setTxPower(power);
}
size_t encodeURISchemePrefix(const char *&urldata, size_t &sizeofURLData) {