Diff: nRF51Gap.cpp

Revision:

0:eff01767de02

Child:

1:f84abedbf4fb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nRF51Gap.cpp	Wed Mar 26 14:38:17 2014 +0000
@@ -0,0 +1,233 @@
+/* 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.
+ */
+  
+#include "nRF51Gap.h"
+#include "mbed.h"
+
+#include "common/common.h"
+#include "ble_advdata.h"
+
+/**************************************************************************/
+/*!
+    @brief  Sets the advertising parameters and payload for the device
+
+    @param[in]  params
+                Basic advertising details, including the advertising
+                delay, timeout and how the device should be advertised
+    @params[in] advData
+                The primary advertising data payload
+    @params[in] scanResponse
+                The optional Scan Response payload if the advertising
+                type is set to \ref GapAdvertisingParams::ADV_SCANNABLE_UNDIRECTED
+                in \ref GapAdveritinngParams
+            
+    @returns    \ref ble_error_t
+    
+    @retval     BLE_ERROR_NONE
+                Everything executed properly
+
+    @retval     BLE_ERROR_BUFFER_OVERFLOW
+                The proposed action would cause a buffer overflow.  All
+                advertising payloads must be <= 31 bytes, for example.
+                
+    @retval     BLE_ERROR_NOT_IMPLEMENTED
+                A feature was requested that is not yet supported in the
+                nRF51 firmware or hardware.
+
+    @retval     BLE_ERROR_PARAM_OUT_OF_RANGE
+                One of the proposed values is outside the valid range.
+
+    @section EXAMPLE
+
+    @code
+
+    @endcode
+*/
+/**************************************************************************/
+ble_error_t nRF51Gap::setAdvertisingData(GapAdvertisingData & advData, GapAdvertisingData & scanResponse)
+{
+    /* Make sure we don't exceed the advertising payload length */
+    if (advData.getPayloadLen() > GAP_ADVERTISING_DATA_MAX_PAYLOAD)
+    {
+        return BLE_ERROR_BUFFER_OVERFLOW;
+    }
+    
+    /* Make sure we have a payload! */
+    if (advData.getPayloadLen() == 0)
+    {
+      return BLE_ERROR_PARAM_OUT_OF_RANGE;
+    }
+
+    /* Check the scan response payload limits */
+    //if ((params.getAdvertisingType() == GapAdvertisingParams::ADV_SCANNABLE_UNDIRECTED))
+    //{
+    //    /* Check if we're within the upper limit */
+    //    if (advData.getPayloadLen() > GAP_ADVERTISING_DATA_MAX_PAYLOAD)
+    //    {
+    //        return BLE_ERROR_BUFFER_OVERFLOW;
+    //    }
+    //    /* Make sure we have a payload! */
+    //    if (advData.getPayloadLen() == 0)
+    //    {
+    //        return BLE_ERROR_PARAM_OUT_OF_RANGE;
+    //    }
+    //}
+    
+    /* Send advertising data! */
+    ASSERT( ERROR_NONE == sd_ble_gap_adv_data_set(advData.getPayload(), advData.getPayloadLen(),
+                                                  scanResponse.getPayload(), scanResponse.getPayloadLen()), BLE_ERROR_PARAM_OUT_OF_RANGE);
+
+	/* Make sure the GAP Service appearance value is aligned with the appearance from GapAdvertisingData */	
+	ASSERT( ERROR_NONE == sd_ble_gap_appearance_set(advData.getAppearance()), BLE_ERROR_PARAM_OUT_OF_RANGE);
+
+    /* ToDo: Perform some checks on the payload, for example the Scan Response can't */
+    /* contains a flags AD type, etc. */
+
+    return BLE_ERROR_NONE;
+}
+
+/**************************************************************************/
+/*!
+    @brief  Starts the BLE HW, initialising any services that were
+            added before this function was called.
+            
+    @note   All services must be added before calling this function!
+            
+    @returns    ble_error_t
+    
+    @retval     BLE_ERROR_NONE
+                Everything executed properly
+                
+    @section EXAMPLE
+
+    @code
+
+    @endcode
+*/
+/**************************************************************************/
+ble_error_t nRF51Gap::startAdvertising(GapAdvertisingParams & params)
+{
+      /* Make sure we support the advertising type */
+    if (params.getAdvertisingType() == GapAdvertisingParams::ADV_CONNECTABLE_DIRECTED)
+    {
+        /* ToDo: This requires a propery security implementation, etc. */
+        return BLE_ERROR_NOT_IMPLEMENTED;
+    }
+
+    /* Check interval range */
+    if (params.getAdvertisingType() == GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED)
+    {
+        /* Min delay is slightly longer for unconnectable devices */
+        if ((params.getInterval() < GAP_ADV_PARAMS_INTERVAL_MIN_NONCON) ||
+            (params.getInterval() > GAP_ADV_PARAMS_INTERVAL_MAX))
+        {
+            return BLE_ERROR_PARAM_OUT_OF_RANGE;
+        }
+    }
+    else
+    {
+        if ((params.getInterval() < GAP_ADV_PARAMS_INTERVAL_MIN) ||
+            (params.getInterval() > GAP_ADV_PARAMS_INTERVAL_MAX))
+        {
+            return BLE_ERROR_PARAM_OUT_OF_RANGE;
+        }
+    }
+
+    /* Check timeout is zero for Connectable Directed */
+    if ((params.getAdvertisingType() == GapAdvertisingParams::ADV_CONNECTABLE_DIRECTED) &&
+        (params.getTimeout() != 0))
+    {
+        /* Timeout must be 0 with this type, although we'll never get here */
+        /* since this isn't implemented yet anyway */
+        return BLE_ERROR_PARAM_OUT_OF_RANGE;
+    }
+
+    /* Check timeout for other advertising types */
+    if ((params.getAdvertisingType() != GapAdvertisingParams::ADV_CONNECTABLE_DIRECTED) &&
+        (params.getTimeout() > GAP_ADV_PARAMS_TIMEOUT_MAX))
+    {
+        return BLE_ERROR_PARAM_OUT_OF_RANGE;
+    }
+
+    /* Start Advertising */
+    ble_gap_adv_params_t adv_para = { 0 };
+
+    adv_para.type        = params.getAdvertisingType() ;
+    adv_para.p_peer_addr = NULL                        ; // Undirected advertisement
+    adv_para.fp          = BLE_GAP_ADV_FP_ANY          ;
+    adv_para.p_whitelist = NULL                        ;
+    adv_para.interval    = params.getInterval()        ; // advertising interval (in units of 0.625 ms)
+    adv_para.timeout     = params.getTimeout()         ;
+
+    ASSERT( ERROR_NONE == sd_ble_gap_adv_start(&adv_para), BLE_ERROR_PARAM_OUT_OF_RANGE);
+		
+	state.advertising = 1;
+
+    return BLE_ERROR_NONE;
+}
+
+/**************************************************************************/
+/*!
+    @brief  Stops the BLE HW and disconnects from any devices
+            
+    @returns    ble_error_t
+    
+    @retval     BLE_ERROR_NONE
+                Everything executed properly
+                
+    @section EXAMPLE
+
+    @code
+
+    @endcode
+*/
+/**************************************************************************/
+ble_error_t nRF51Gap::stopAdvertising(void)
+{
+    /* Stop Advertising */
+    ASSERT( ERROR_NONE == sd_ble_gap_adv_stop(), BLE_ERROR_PARAM_OUT_OF_RANGE);
+
+	state.advertising = 0;
+
+    return BLE_ERROR_NONE;
+}
+
+/**************************************************************************/
+/*!
+    @brief  Disconnects if we are connected to a central device
+            
+    @returns    ble_error_t
+    
+    @retval     BLE_ERROR_NONE
+                Everything executed properly
+                
+    @section EXAMPLE
+
+    @code
+
+    @endcode
+*/
+/**************************************************************************/
+ble_error_t nRF51Gap::disconnect(void)
+{
+	/* Disconnect if we are connected to a central device */
+    // ASSERT( ERROR_NONE == sd_ble_gap_disconnect(), BLE_ERROR_PARAM_OUT_OF_RANGE);
+
+	state.advertising = 0;
+    state.connected = 0;
+	
+    return BLE_ERROR_NONE;
+}