mbed-x
SimpleBLE example for mbed OS 5
Dependents: SimpleBLE-Example-mbedos5
Diff: SimpleBLE.h
- Revision:
- 4:0c99ff9d2373
- Parent:
- 2:15329a3de04c
- Child:
- 5:9b33cae085cc
diff -r 603bb767bccb -r 0c99ff9d2373 SimpleBLE.h
--- a/SimpleBLE.h Fri Aug 19 10:58:38 2016 +0200
+++ b/SimpleBLE.h Fri Aug 19 11:47:47 2016 +0200
@@ -13,11 +13,12 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-
+
#include <string>
#include <sstream>
#include <vector>
#include <map>
+#include "mbed_events.h"
#include "ble/BLE.h"
#define def_fn(T, postfix) \
@@ -75,7 +76,7 @@
class SimpleCharBase {
public:
virtual void update(T newValue) = 0;
- virtual T* getValue(void) = 0;
+ virtual T* getValue(void) = 0;
};
/**
@@ -85,16 +86,16 @@
template <class T, template <typename T2> class U>
class SimpleCharInternal : public Updatable, public SimpleCharBase<T> {
public:
- SimpleCharInternal(BLE* aBle,
- const UUID &uuid,
- GattCharacteristic::Properties_t aGattChar,
+ SimpleCharInternal(BLE* aBle,
+ const UUID &uuid,
+ GattCharacteristic::Properties_t aGattChar,
T aDefaultValue,
void(*aCallback)(T) = NULL) :
ble(aBle), value(new T(aDefaultValue)), callback(aCallback)
{
state = new U<T>(uuid, value, aGattChar);
}
-
+
~SimpleCharInternal() {
if (state) {
free(state);
@@ -103,12 +104,12 @@
free(value);
}
}
-
+
virtual void update(T newValue) {
*value = newValue;
ble->gattServer().write(state->getValueHandle(), (uint8_t *)value, sizeof(T));
}
-
+
U<T>* getChar(void) {
return state;
}
@@ -116,7 +117,7 @@
virtual T* getValue(void) {
return value;
}
-
+
virtual void onDataWritten(const uint8_t* data, size_t len) {
*value = ((T*)data)[0];
if (callback) {
@@ -153,7 +154,7 @@
operator T() const {
return *(base->getValue());
};
-
+
private:
SimpleCharBase<T>* base;
};
@@ -161,38 +162,36 @@
class SimpleBLE {
public:
- SimpleBLE(const char* aName, uint16_t aInterval = 1000, bool aLogging = true)
- : name(aName), interval(aInterval), logging(aLogging)
+ SimpleBLE(const char* aName, uint16_t aInterval = 1000, bool aLogging = true)
+ : name(aName), interval(aInterval), logging(aLogging)
{
ble = &BLE::Instance();
}
~SimpleBLE() {}
-
- void start() {
+
+ void start(EventQueue* aEventQueue) {
+ eventQueue = aEventQueue;
+
ble->init(this, &SimpleBLE::bleInitComplete);
-
+ ble->onEventsToProcess(BLE::OnEventsToProcessCallback_t(this, &SimpleBLE::scheduleBleEventsProcessing));
+
/* SpinWait for initialization to complete. This is necessary because the
* BLE object is used in the main loop below. */
while (ble->hasInitialized() == false) { /* spin loop */ }
}
-
- // Start up the BLE service and just run with it!
- void waitForEvent() {
- ble->waitForEvent();
- }
-
+
void onDisconnection(Gap::DisconnectionEventCallback_t callback) {
ble->gap().onDisconnection(callback);
}
-
+
void onConnection(Gap::ConnectionEventCallback_t callback) {
ble->gap().onConnection(callback);
}
-
+
BLE* getBle(void) {
return ble;
}
-
+
def_fn(uint8_t, u8)
def_fn(uint16_t, u16)
def_fn(uint32_t, u32)
@@ -201,41 +200,41 @@
def_fn(int32_t, i32)
def_fn(bool, bool)
def_fn(float, float)
-
+
private:
void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
{
if (logging) printf("bleInitComplete\r\n");
-
+
BLE& ble = params->ble;
ble_error_t error = params->error;
-
+
if (error != BLE_ERROR_NONE) {
if (logging) printf("BLE Init error %d\r\n", error);
return;
}
-
+
/* Ensure that it is the default instance of BLE */
if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
return;
}
ble.gattServer().onDataWritten(this, &SimpleBLE::onDataWrittenCallback);
-
+
// let's add some services yo (why is there no 'auto' in mbed?)
uint16_t uuid16_list[uint16_services.size()];
size_t uuid16_counter = 0;
- {
+ {
typedef std::map<uint16_t, vector<GattCharacteristic*>* >::iterator it_type;
for(it_type it = uint16_services.begin(); it != uint16_services.end(); it++) {
if (logging) printf("Creating service 0x%x\n", it->first);
- uuid16_list[uuid16_counter++] = it->first;
-
+ uuid16_list[uuid16_counter++] = it->first;
+
GattCharacteristic* charTable[it->second->size()];
for (size_t git = 0; git < it->second->size(); git++) {
charTable[git] = it->second->at(git);
}
-
+
GattService service(it->first, charTable, it->second->size());
ble.gattServer().addService(service);
}
@@ -248,13 +247,13 @@
typedef std::map<string, vector<GattCharacteristic*>* >::iterator it_type;
for(it_type it = uint128_services.begin(); it != uint128_services.end(); it++) {
if (logging) printf("Creating service %s\n", it->first.c_str());
- uuid128_list[uuid128_counter++] = it->first.c_str();
-
+ uuid128_list[uuid128_counter++] = it->first.c_str();
+
GattCharacteristic* charTable[it->second->size()];
for (size_t git = 0; git < it->second->size(); git++) {
charTable[git] = it->second->at(git);
}
-
+
GattService service(UUID(it->first.c_str()), charTable, it->second->size());
ble.gattServer().addService(service);
}
@@ -267,10 +266,10 @@
ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
ble.gap().setAdvertisingInterval(interval);
ble.gap().startAdvertising();
-
+
if (logging) printf("Started advertising\r\n");
}
-
+
void onDataWrittenCallback(const GattWriteCallbackParams *params) {
// see if we know for which char this message is...
typedef std::map<GattCharacteristic*, Updatable* >::iterator it_type;
@@ -280,7 +279,7 @@
}
}
}
-
+
void addToServices(uint16_t uuid, GattCharacteristic* c) {
if (uint16_services.count(uuid) == 0) {
uint16_services[uuid] = new vector<GattCharacteristic*>();
@@ -288,7 +287,7 @@
uint16_services[uuid]->push_back(c);
}
-
+
void addToServices(const char* aUuid, GattCharacteristic* c) {
string uuid(aUuid);
if (uint128_services.count(uuid) == 0) {
@@ -297,58 +296,62 @@
uint128_services[uuid]->push_back(c);
}
-
+
+ void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) {
+ eventQueue->call(Callback<void()>(ble, &BLE::processEvents));
+ }
+
// === START READONLY ===
-
+
template <typename T>
- SimpleChar<T> readOnly(uint16_t serviceUuid,
- const UUID& charUuid,
+ SimpleChar<T> readOnly(uint16_t serviceUuid,
+ const UUID& charUuid,
bool enableNotify = true,
T defaultValue = T()) {
- GattCharacteristic::Properties_t gattChar = enableNotify ?
+ GattCharacteristic::Properties_t gattChar = enableNotify ?
GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY :
GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ;
- SimpleCharInternal<T, ReadOnlyGattCharacteristic>* c =
+ SimpleCharInternal<T, ReadOnlyGattCharacteristic>* c =
new SimpleCharInternal<T, ReadOnlyGattCharacteristic>(ble, charUuid, gattChar, defaultValue);
-
+
addToServices(serviceUuid, c->getChar());
-
+
return *(new SimpleChar<T>(c));
}
template <typename T>
- SimpleChar<T> readOnly(const char* serviceUuid,
- const UUID& charUuid,
+ SimpleChar<T> readOnly(const char* serviceUuid,
+ const UUID& charUuid,
bool enableNotify = true,
T defaultValue = T()) {
- GattCharacteristic::Properties_t gattChar = enableNotify ?
+ GattCharacteristic::Properties_t gattChar = enableNotify ?
GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY :
GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ;
- SimpleCharInternal<T, ReadOnlyGattCharacteristic>* c =
+ SimpleCharInternal<T, ReadOnlyGattCharacteristic>* c =
new SimpleCharInternal<T, ReadOnlyGattCharacteristic>(ble, charUuid, gattChar, defaultValue);
-
+
addToServices(serviceUuid, c->getChar());
return *(new SimpleChar<T>(c));
}
// === END READONLY ===
-
+
// === START READWRITE ===
template <typename T>
- SimpleChar<T> readWrite(uint16_t serviceUuid,
- const UUID& charUuid,
+ SimpleChar<T> readWrite(uint16_t serviceUuid,
+ const UUID& charUuid,
bool enableNotify = true,
T defaultValue = T(),
void(*callback)(T) = NULL) {
- GattCharacteristic::Properties_t gattChar = enableNotify ?
+ GattCharacteristic::Properties_t gattChar = enableNotify ?
GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY :
GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ;
- SimpleCharInternal<T, ReadWriteGattCharacteristic>* c =
+ SimpleCharInternal<T, ReadWriteGattCharacteristic>* c =
new SimpleCharInternal<T, ReadWriteGattCharacteristic>(ble, charUuid, gattChar, defaultValue, callback);
addToServices(serviceUuid, c->getChar());
@@ -357,52 +360,52 @@
return *(new SimpleChar<T>(c));
}
-
-
+
+
template <typename T>
- SimpleChar<T> readWrite(const char* serviceUuid,
- const UUID& charUuid,
+ SimpleChar<T> readWrite(const char* serviceUuid,
+ const UUID& charUuid,
bool enableNotify = true,
T defaultValue = T(),
void(*callback)(T) = NULL) {
- GattCharacteristic::Properties_t gattChar = enableNotify ?
+ GattCharacteristic::Properties_t gattChar = enableNotify ?
GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY :
GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ;
- SimpleCharInternal<T, ReadWriteGattCharacteristic>* c =
+ SimpleCharInternal<T, ReadWriteGattCharacteristic>* c =
new SimpleCharInternal<T, ReadWriteGattCharacteristic>(ble, charUuid, gattChar, defaultValue, callback);
addToServices(serviceUuid, c->getChar());
writeCallbacks[c->getChar()] = c;
-
+
return *(new SimpleChar<T>(c));
}
-
+
template <typename T>
- SimpleChar<T> readWrite(uint16_t serviceUuid,
- const UUID& charUuid,
+ SimpleChar<T> readWrite(uint16_t serviceUuid,
+ const UUID& charUuid,
void(*callback)(T) = NULL) {
return readWrite(serviceUuid, charUuid, true, T(), callback);
}
template <typename T>
- SimpleChar<T> readWrite(const char* serviceUuid,
- const UUID& charUuid,
+ SimpleChar<T> readWrite(const char* serviceUuid,
+ const UUID& charUuid,
void(*callback)(T) = NULL) {
return readWrite(serviceUuid, charUuid, true, T(), callback);
}
-
+
// === END READWRITE ===
-
+
// === START WRITEONLY ===
template <typename T>
- SimpleChar<T> writeOnly(uint16_t serviceUuid,
+ SimpleChar<T> writeOnly(uint16_t serviceUuid,
const UUID& charUuid,
void(*callback)(T) = NULL) {
- SimpleCharInternal<T, WriteOnlyGattCharacteristic>* c =
+ SimpleCharInternal<T, WriteOnlyGattCharacteristic>* c =
new SimpleCharInternal<T, WriteOnlyGattCharacteristic>(ble, charUuid, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NONE, T(), callback);
addToServices(serviceUuid, c->getChar());
@@ -413,20 +416,20 @@
}
template <typename T>
- SimpleChar<T> writeOnly(const char* serviceUuid,
+ SimpleChar<T> writeOnly(const char* serviceUuid,
const UUID& charUuid,
void(*callback)(T) = NULL) {
- SimpleCharInternal<T, WriteOnlyGattCharacteristic>* c =
+ SimpleCharInternal<T, WriteOnlyGattCharacteristic>* c =
new SimpleCharInternal<T, WriteOnlyGattCharacteristic>(ble, charUuid, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NONE, T(), callback);
addToServices(serviceUuid, c->getChar());
writeCallbacks[c->getChar()] = c;
-
+
return *(new SimpleChar<T>(c));
}
-
+
// === END WRITEONLY ===
BLE* ble;
@@ -436,5 +439,6 @@
map<uint16_t, vector<GattCharacteristic*>* > uint16_services;
map<string, vector<GattCharacteristic*>* > uint128_services;
map<GattCharacteristic*, Updatable*> writeCallbacks;
+ EventQueue* eventQueue;
};