btle.cpp

00001 /* mbed Microcontroller Library
00002 * Copyright (c) 2006-2013 ARM Limited
00003 *
00004 * Licensed under the Apache License, Version 2.0 (the "License");
00005 * you may not use this file except in compliance with the License.
00006 * You may obtain a copy of the License at
00007 *
00008 *     http://www.apache.org/licenses/LICENSE-2.0
00009 *
00010 * Unless required by applicable law or agreed to in writing, software
00011 * distributed under the License is distributed on an "AS IS" BASIS,
00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013 * See the License for the specific language governing permissions and
00014 * limitations under the License.
00015 */
00016 
00017 
00018 #include "btle.h"
00019 #include "public/Gap.h"
00020 #include "public/GapEvents.h"
00021 #include "BlueNRGGap.h"
00022 #include "BlueNRGGattServer.h"
00023 #include "Utils.h"
00024 
00025 #ifdef __cplusplus
00026 extern "C" {
00027 #endif
00028 
00029 
00030 /* C File Includes ------------------------------------------------------------------*/
00031 #include "hal_types.h"
00032 #include "hci.h"
00033 #include "bluenrg_hci.h"
00034 #include "gp_timer.h"
00035 #include "hal.h"
00036 #include "osal.h"
00037 #include "hci_internal.h"
00038 #include "bluenrg_hci_internal.h"
00039 #include "bluenrg_gap.h"
00040 #include "sm.h"
00041 #include <stdio.h>
00042 #include <string.h>
00043 #include "role_type.h"
00044 #include "debug.h"
00045 
00046 #ifdef __cplusplus
00047 }
00048 #endif
00049 
00050 
00051 static void btle_handler(/*ble_evt_t * p_ble_evt*/);
00052 void HCI_Input(tHciDataPacket * hciReadPacket);
00053 
00054 //#define BDADDR_SIZE 6
00055 //tHalUint8 bdaddr[BDADDR_SIZE]= {0xaa, 0x00, 0x00, 0xE1, 0x80, 0x02};
00056 
00057 uint16_t g_gap_service_handle = 0;
00058 uint16_t g_appearance_char_handle = 0;
00059 uint16_t g_device_name_char_handle = 0;
00060 
00061 /* Private variables ---------------------------------------------------------*/
00062 volatile uint8_t set_connectable = 1;
00063 
00064 /**************************************************************************/
00065 /*!
00066     @brief      Initialises BTLE and the underlying HW/Device
00067 
00068     @returns
00069 */
00070 /**************************************************************************/
00071 void btle_init(bool isSetAddress)
00072 {
00073     DEBUG("btle_init>>\n\r"); 
00074     tHalUint8 *bleAddr;
00075     int ret;
00076     uint16_t service_handle, dev_name_char_handle, appearance_char_handle;
00077 
00078     //HAL_Init();
00079 
00080     /* Configure the User Button in GPIO Mode */
00081     //BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_GPIO);
00082 
00083     /* Configure the system clock */
00084     //SystemClock_Config();
00085 
00086     /* Delay needed only to be able to acces the JTAG interface after reset
00087     if it will be disabled later. */
00088     Clock_Wait(500);
00089 
00090     /* Initialize the BlueNRG SPI driver */
00091     BNRG_SPI_Init();
00092 
00093     /* Initialize the BlueNRG HCI */
00094     HCI_Init();
00095 
00096     /* Reset BlueNRG SPI interface */
00097     BlueNRG_RST();
00098 
00099     /* The Nucleo board must be configured as SERVER */
00100     //check if issetAddress is set than set address.
00101     if(isSetAddress)
00102     {
00103         bleAddr = BlueNRGGap::getInstance().getAddress();
00104         
00105         tHalUint8 bdaddr[BDADDR_SIZE];
00106         Osal_MemCpy(bdaddr, bleAddr, BDADDR_SIZE);
00107 
00108         ret = aci_hal_write_config_data(CONFIG_DATA_PUBADDR_OFFSET,
00109         CONFIG_DATA_PUBADDR_LEN,
00110         bdaddr);
00111     }    
00112     
00113     ret = aci_gatt_init();
00114     //GAP is always in PERIPHERAL _ROLE as mbed does not support Master role at the moment
00115     ret = aci_gap_init(GAP_PERIPHERAL_ROLE, &service_handle, &dev_name_char_handle, &appearance_char_handle);
00116 
00117     g_gap_service_handle = service_handle;
00118     g_appearance_char_handle = appearance_char_handle;
00119     g_device_name_char_handle = dev_name_char_handle; 
00120     //Device Name is set from Accumulate Adv Data Payload or through setDeviceName API  
00121     /*ret = aci_gatt_update_char_value(service_handle, dev_name_char_handle, 0,
00122                             strlen(name), (tHalUint8 *)name);*/
00123     
00124     return;
00125 }
00126 
00127 void User_Process()
00128 {
00129     if(set_connectable){
00130         setConnectable();
00131         set_connectable = FALSE;
00132     }
00133 }
00134 
00135 void setConnectable(void)
00136 {  
00137     tBleStatus ret;
00138 
00139     const char local_name[] = {AD_TYPE_COMPLETE_LOCAL_NAME,'B','l','u','e','N','R','G', '1', '2'};
00140 
00141     /* disable scan response */
00142     hci_le_set_scan_resp_data(0,NULL);
00143 
00144 
00145     ret = aci_gap_set_discoverable(ADV_IND, 0, 0, PUBLIC_ADDR, NO_WHITE_LIST_USE,
00146     8, local_name, 0, NULL, 0, 0);
00147 
00148 }
00149 
00150 /**************************************************************************/
00151 /*!
00152     @brief
00153 
00154     @param[in]  p_ble_evt
00155     
00156     @returns
00157 */
00158 /**************************************************************************/
00159 static void btle_handler()
00160 {
00161 
00162 }
00163 
00164 
00165 void SPI_Poll(void)
00166 {
00167     //HAL_GPIO_EXTI_Callback_Poll(BNRG_SPI_EXTI_PIN);
00168     return;
00169 }
00170 
00171 #ifdef __cplusplus
00172 extern "C" {
00173 #endif
00174 
00175     /**************************************************************************/
00176     /*!
00177     @brief      Handle HCI Stack Event
00178 
00179     @param[in]  pckt
00180                 Event Packet sent by the stack to be decoded
00181     
00182     @returns
00183 */
00184     /**************************************************************************/
00185     extern void HCI_Event_CB(void *pckt) {
00186         
00187         hci_uart_pckt *hci_pckt = (hci_uart_pckt*)pckt;
00188         hci_event_pckt *event_pckt = (hci_event_pckt*)hci_pckt->data;
00189         
00190         if(hci_pckt->type != HCI_EVENT_PKT)
00191         return;
00192 
00193         switch(event_pckt->evt){
00194             
00195         case EVT_DISCONN_COMPLETE:
00196             {
00197                 evt_disconn_complete *evt = (evt_disconn_complete*)event_pckt;
00198                 
00199                 BlueNRGGap::getInstance().processDisconnectionEvent(evt->handle, BlueNRGGap::REMOTE_USER_TERMINATED_CONNECTION);
00200             }
00201             break;
00202             
00203         case EVT_LE_META_EVENT:
00204             {
00205                 evt_le_meta_event *evt = (evt_le_meta_event *)event_pckt->data;
00206                 
00207                 switch(evt->subevent){
00208                 case EVT_LE_CONN_COMPLETE:
00209                     {                            
00210                         evt_le_connection_complete *cc = (evt_le_connection_complete *)evt->data;
00211                         
00212                         BlueNRGGap::getInstance().setConnectionHandle(cc->handle);
00213                         BlueNRGGap::ConnectionParams_t connectionParams;
00214                         BlueNRGGap::getInstance().getPreferredConnectionParams(&connectionParams);                                                
00215                         BlueNRGGap::getInstance().processConnectionEvent(cc->handle, (const BlueNRGGap::ConnectionParams_t *)&connectionParams);                            
00216                     }
00217                     break;
00218                 }
00219             }
00220             break;
00221             
00222         case EVT_VENDOR:
00223             {
00224                 evt_blue_aci *blue_evt = (evt_blue_aci*)event_pckt->data;
00225                 switch(blue_evt->ecode){
00226                     
00227                 case EVT_BLUE_GATT_READ_PERMIT_REQ:
00228                     {
00229                         DEBUG("EVT_BLUE_GATT_READ_PERMIT_REQ_OK\n\r");
00230                         evt_gatt_read_permit_req *pr = (evt_gatt_read_permit_req*)blue_evt->data;                    
00231                         BlueNRGGattServer::getInstance().Read_Request_CB(pr->attr_handle);                                                
00232                     }
00233                     break;
00234                     
00235                 case EVT_BLUE_GATT_ATTRIBUTE_MODIFIED:         
00236                     {
00237                         /* this callback is invoked when a GATT attribute is modified
00238                             extract callback data and pass to suitable handler function */
00239                         evt_gatt_attr_modified *evt = (evt_gatt_attr_modified*)blue_evt->data;
00240                         DEBUG("EVT_BLUE_GATT_ATTRIBUTE_MODIFIED\n\r");                          
00241                         //DEBUG("CharHandle 0x%x, length: 0x%x, Data: 0x%x\n\r",evt->attr_handle, evt->data_length, (uint16_t)evt->att_data[0]);
00242                         DEBUG("CharHandle %d, length: %d, Data: %d\n\r",evt->attr_handle, evt->data_length, (uint16_t)evt->att_data[0]);       
00243                         
00244                         //Extract the GattCharacteristic from p_characteristics[] and find the properties mask
00245                         GattCharacteristic *p_char = BlueNRGGattServer::getInstance().getCharacteristicFromHandle(evt->attr_handle-1);
00246                         if(p_char!=NULL) {
00247                             DEBUG("getProperties 0x%x\n\r",p_char->getProperties());
00248                             if((p_char->getProperties() &  (GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY
00249                                             | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_INDICATE))) {
00250                                 
00251                                 //Now Check if data written in Enable or Disable
00252                                 if((uint16_t)evt->att_data[0]==1) {
00253                                     //DEBUG("Notify ENABLED\n\r"); 
00254                                     BlueNRGGattServer::getInstance().handleEvent(GattServerEvents::GATT_EVENT_UPDATES_ENABLED, evt->attr_handle);
00255                                 } 
00256                                 else {
00257                                     //DEBUG("Notify DISABLED\n\r"); 
00258                                     BlueNRGGattServer::getInstance().handleEvent(GattServerEvents::GATT_EVENT_UPDATES_DISABLED, evt->attr_handle);
00259                                 }
00260                             }
00261                             
00262                             //Check is attr handle property is WRITEABLE, if yes, generate GATT_EVENT_DATA_WRITTEN Event
00263                             if((p_char->getProperties() &
00264                                         (GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE|
00265                                             GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE))) {
00266                                 GattCharacteristicWriteCBParams params;
00267                                 params.charHandle = evt->attr_handle-1;
00268                                 params.op = GattCharacteristicWriteCBParams::GATTS_CHAR_OP_WRITE_CMD;
00269                                 params.data = evt->att_data;
00270                                 params.len = evt->data_length;
00271                                 params.offset = 0;
00272                                 
00273                                 DEBUG("Data written condition\n\r");
00274                                 //BlueNRGGattServer::getInstance().handleEvent(GattServerEvents::GATT_EVENT_DATA_WRITTEN, evt->attr_handle);
00275                                 BlueNRGGattServer::getInstance().handleDataWrittenEvent(&params);
00276                                 //Write the actual Data to the Attr Handle? (uint8_1[])evt->att_data contains the data
00277                                 if ((p_char->getValueAttribute().getValuePtr() != NULL) && (p_char->getValueAttribute().getInitialLength() > 0)) {
00278                                     BlueNRGGattServer::getInstance().updateValue(p_char->getValueAttribute().getHandle(), 
00279                                     p_char->getValueAttribute().getValuePtr(), p_char->getValueAttribute().getInitialLength(), false /* localOnly */);
00280                                 }
00281                             } 
00282                         }                  
00283                     }
00284                     break;  
00285                     
00286                     //Any cases for Data Sent Notifications?
00287                 case EVT_BLUE_GATT_NOTIFICATION:
00288                     //This is only relevant for Client Side Event
00289                     DEBUG("EVT_BLUE_GATT_NOTIFICATION");
00290                     break;
00291                 case EVT_BLUE_GATT_INDICATION:
00292                     //This is only relevant for Client Side Event
00293                     DEBUG("EVT_BLUE_GATT_INDICATION");
00294                     break;   
00295                     
00296                 case EVT_BLUE_GATT_PROCEDURE_COMPLETE:
00297                     DEBUG("EVT_BLUE_GATT_PROCEDURE_COMPLETE");
00298                     break;                                     
00299                 }
00300             }
00301             break;
00302         }    
00303         
00304         return ;
00305     }
00306 
00307 
00308 #ifdef __cplusplus
00309 }
00310 #endif