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Fix attributes not found with 16/32bit UUIDs.

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* Some peripherals will advertise 16/32bit UUIDs but when queried for their handles
they do not convert the UUID to 128 bit locally and will return attribute not found.

This patch will query the peripheral a second time with a 128bit converted UUID.
This commit is contained in:
h2zero 2020-12-28 15:40:01 -07:00
parent 27fc792952
commit 39a3a63f80
3 changed files with 36 additions and 1 deletions
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10
src/NimBLEClient.cpp
View file

@ -454,6 +454,16 @@ NimBLERemoteService* NimBLEClient::getService(const NimBLEUUID &uuid) {
if(m_servicesVector.size() > prev_size) {
return m_servicesVector.back();
}
// If the request was successful but 16/32 bit service not found
// try again with the 128 bit uuid.
if(uuid.bitSize() == BLE_UUID_TYPE_16 ||
uuid.bitSize() == BLE_UUID_TYPE_32)
{
NimBLEUUID uuid128(uuid);
uuid128.to128();
return getService(uuid128);
}
}
NIMBLE_LOGD(LOG_TAG, "<< getService: not found");

13
src/NimBLERemoteCharacteristic.cpp
View file

@ -244,7 +244,7 @@ NimBLERemoteDescriptor* NimBLERemoteCharacteristic::getDescriptor(const NimBLEUU
for(auto &it: m_descriptorVector) {
if(it->getUUID() == uuid) {
NIMBLE_LOGD(LOG_TAG, "<< getDescriptor: found");
NIMBLE_LOGD(LOG_TAG, "<< getDescriptor: found the descriptor with uuid: %s", uuid.toString().c_str());
return it;
}
}
@ -254,7 +254,18 @@ NimBLERemoteDescriptor* NimBLERemoteCharacteristic::getDescriptor(const NimBLEUU
if(m_descriptorVector.size() > prev_size) {
return m_descriptorVector.back();
}
// If the request was successful but 16/32 bit descriptor not found
// try again with the 128 bit uuid.
if(uuid.bitSize() == BLE_UUID_TYPE_16 ||
uuid.bitSize() == BLE_UUID_TYPE_32)
{
NimBLEUUID uuid128(uuid);
uuid128.to128();
return getDescriptor(uuid128);
}
}
NIMBLE_LOGD(LOG_TAG, "<< getDescriptor: Not found");
return nullptr;
} // getDescriptor

14
src/NimBLERemoteService.cpp
View file

@ -94,8 +94,11 @@ NimBLERemoteCharacteristic* NimBLERemoteService::getCharacteristic(const char* u
* @return A pointer to the characteristic object, or nullptr if not found.
*/
NimBLERemoteCharacteristic* NimBLERemoteService::getCharacteristic(const NimBLEUUID &uuid) {
NIMBLE_LOGD(LOG_TAG, ">> getCharacteristic: uuid: %s", uuid.toString().c_str());
for(auto &it: m_characteristicVector) {
if(it->getUUID() == uuid) {
NIMBLE_LOGD(LOG_TAG, "<< getCharacteristic: found the characteristic with uuid: %s", uuid.toString().c_str());
return it;
}
}
@ -105,8 +108,19 @@ NimBLERemoteCharacteristic* NimBLERemoteService::getCharacteristic(const NimBLEU
if(m_characteristicVector.size() > prev_size) {
return m_characteristicVector.back();
}
// If the request was successful but 16/32 bit characteristic not found
// try again with the 128 bit uuid.
if(uuid.bitSize() == BLE_UUID_TYPE_16 ||
uuid.bitSize() == BLE_UUID_TYPE_32)
{
NimBLEUUID uuid128(uuid);
uuid128.to128();
return getCharacteristic(uuid128);
}
}
NIMBLE_LOGD(LOG_TAG, "<< getCharacteristic: not found");
return nullptr;
} // getCharacteristic