Diff: public/Gap.h

Revision:

106:a20be740075d

Child:

116:ca826083980e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/public/Gap.h	Wed Jul 23 15:09:23 2014 +0100
@@ -0,0 +1,129 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __GAP_H__
+#define __GAP_H__
+
+#include "mbed.h"
+#include "blecommon.h"
+#include "GapAdvertisingData.h"
+#include "GapAdvertisingParams.h"
+#include "GapEvents.h"
+
+/**************************************************************************/
+/*!
+    \brief
+    The base class used to abstract GAP functionality to a specific radio
+    transceiver, SOC or BLE Stack.
+*/
+/**************************************************************************/
+class Gap
+{
+public:
+    typedef enum addr_type_e {
+        ADDR_TYPE_PUBLIC = 0,
+        ADDR_TYPE_RANDOM_STATIC,
+        ADDR_TYPE_RANDOM_PRIVATE_RESOLVABLE,
+        ADDR_TYPE_RANDOM_PRIVATE_NON_RESOLVABLE
+    } addr_type_t;
+
+    /* Describes the current state of the device (more than one bit can be set) */
+    typedef struct GapState_s {
+        unsigned advertising : 1; /**< peripheral is currently advertising */
+        unsigned connected   : 1; /**< peripheral is connected to a central */
+    } GapState_t;
+
+    typedef uint16_t Handle_t;
+
+    typedef struct {
+      uint16_t minConnectionInterval;        /**< Minimum Connection Interval in 1.25 ms units, see @ref BLE_GAP_CP_LIMITS.*/
+      uint16_t maxConnectionInterval;        /**< Maximum Connection Interval in 1.25 ms units, see @ref BLE_GAP_CP_LIMITS.*/
+      uint16_t slaveLatency;                 /**< Slave Latency in number of connection events, see @ref BLE_GAP_CP_LIMITS.*/
+      uint16_t connectionSupervisionTimeout; /**< Connection Supervision Timeout in 10 ms units, see @ref BLE_GAP_CP_LIMITS.*/
+    } ConnectionParams_t;
+
+public:
+    /* These functions must be defined in the sub-class */
+    virtual ble_error_t setAddress(addr_type_t type, const uint8_t address[6]) = 0;
+    virtual ble_error_t setAdvertisingData(const GapAdvertisingData &, const GapAdvertisingData &) = 0;
+    virtual ble_error_t startAdvertising(const GapAdvertisingParams &) = 0;
+    virtual ble_error_t stopAdvertising(void)                    = 0;
+    virtual ble_error_t disconnect(void)                         = 0;
+    virtual ble_error_t getPreferredConnectionParams(ConnectionParams_t *params) = 0;
+    virtual ble_error_t setPreferredConnectionParams(const ConnectionParams_t *params) = 0;
+    virtual ble_error_t updateConnectionParams(Handle_t handle, const ConnectionParams_t *params) = 0;
+
+    typedef void (*EventCallback_t)(void);
+    typedef void (*HandleSpecificEventCallback_t)(Handle_t);
+
+    /* Event callback handlers */
+    void setOnTimeout(EventCallback_t callback) {
+        onTimeout = callback;
+    }
+    void setOnConnection(HandleSpecificEventCallback_t callback) {
+        onConnection = callback;
+    }
+    void setOnDisconnection(HandleSpecificEventCallback_t callback) {
+        onDisconnection = callback;
+    }
+
+    void processHandleSpecificEvent(GapEvents::gapEvent_e type, Handle_t handle) {
+        switch (type) {
+            case GapEvents::GAP_EVENT_CONNECTED:
+                state.connected = 1;
+                if (onConnection) {
+                    onConnection(handle);
+                }
+                break;
+            case GapEvents::GAP_EVENT_DISCONNECTED:
+                state.connected = 0;
+                if (onDisconnection) {
+                    onDisconnection(handle);
+                }
+                break;
+        }
+    }
+
+    void processEvent(GapEvents::gapEvent_e type) {
+        switch (type) {
+            case GapEvents::GAP_EVENT_TIMEOUT:
+                state.advertising = 0;
+                if (onTimeout) {
+                    onTimeout();
+                }
+                break;
+        }
+    }
+
+    GapState_t getState(void) const {
+        return state;
+    }
+
+protected:
+    Gap() : state(), onTimeout(NULL), onConnection(NULL), onDisconnection(NULL) {
+        /* empty */
+    }
+
+protected:
+    GapState_t state;
+
+private:
+    EventCallback_t               onTimeout;
+    HandleSpecificEventCallback_t onConnection;
+    HandleSpecificEventCallback_t onDisconnection;
+};
+
+#endif // ifndef __GAP_H__