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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 #include "common/common.h " 00018 #include "nordic_common.h" 00019 00020 #include "app_timer.h " 00021 #include "btle.h" 00022 00023 #include "ble_stack_handler_types.h " 00024 #include "ble_radio_notification.h " 00025 #include "ble_flash.h " 00026 #if NEED_BOND_MANAGER 00027 #include "ble_bondmngr.h" 00028 #endif 00029 #include "ble_conn_params.h " 00030 00031 #include "btle_gap.h" 00032 #include "btle_advertising.h" 00033 #include "custom/custom_helper.h" 00034 00035 #include "softdevice_handler.h " 00036 #include "pstorage.h " 00037 00038 #include "GapEvents.h" 00039 #include "nRF51Gap.h" 00040 #include "nRF51GattServer.h" 00041 00042 #include "ble_hci.h" 00043 00044 #if NEED_BOND_MANAGER /* disabled by default */ 00045 static void service_error_callback(uint32_t nrf_error); 00046 #endif 00047 extern "C" void assert_nrf_callback(uint16_t line_num, const uint8_t *p_file_name); 00048 void app_error_handler(uint32_t error_code, uint32_t line_num, const uint8_t *p_file_name); 00049 00050 #if NEED_BOND_MANAGER /* disabled by default */ 00051 static error_t bond_manager_init(void); 00052 #endif 00053 00054 static void btle_handler(ble_evt_t *p_ble_evt); 00055 00056 static void sys_evt_dispatch(uint32_t sys_evt) 00057 { 00058 #if NEED_PSTORAGE /* disabled by default */ 00059 pstorage_sys_event_handler(sys_evt); 00060 #endif 00061 } 00062 00063 error_t btle_init(void) 00064 { 00065 const bool useScheduler = false; 00066 SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_XTAL_20_PPM, useScheduler); 00067 00068 // Enable BLE stack 00069 /** 00070 * Using this call, the application can select whether to include the 00071 * Service Changed characteristic in the GATT Server. The default in all 00072 * previous releases has been to include the Service Changed characteristic, 00073 * but this affects how GATT clients behave. Specifically, it requires 00074 * clients to subscribe to this attribute and not to cache attribute handles 00075 * between connections unless the devices are bonded. If the application 00076 * does not need to change the structure of the GATT server attributes at 00077 * runtime this adds unnecessary complexity to the interaction with peer 00078 * clients. If the SoftDevice is enabled with the Service Changed 00079 * Characteristics turned off, then clients are allowed to cache attribute 00080 * handles making applications simpler on both sides. 00081 */ 00082 static const bool IS_SRVC_CHANGED_CHARACT_PRESENT = false; 00083 ble_enable_params_t enableParams = { 00084 .gatts_enable_params = { 00085 .service_changed = IS_SRVC_CHANGED_CHARACT_PRESENT 00086 } 00087 }; 00088 if (sd_ble_enable(&enableParams) != NRF_SUCCESS) { 00089 return ERROR_INVALID_PARAM; 00090 } 00091 00092 ble_gap_addr_t addr; 00093 if (sd_ble_gap_address_get(&addr) != NRF_SUCCESS) { 00094 return ERROR_INVALID_PARAM; 00095 } 00096 if (sd_ble_gap_address_set(BLE_GAP_ADDR_CYCLE_MODE_NONE, &addr) != NRF_SUCCESS) { 00097 return ERROR_INVALID_PARAM; 00098 } 00099 00100 ASSERT_STATUS( softdevice_ble_evt_handler_set(btle_handler)); 00101 ASSERT_STATUS( softdevice_sys_evt_handler_set(sys_evt_dispatch)); 00102 00103 #if NEED_BOND_MANAGER /* disabled by default */ 00104 bond_manager_init(); 00105 #endif 00106 btle_gap_init(); 00107 00108 return ERROR_NONE; 00109 } 00110 00111 static void btle_handler(ble_evt_t *p_ble_evt) 00112 { 00113 /* Library service handlers */ 00114 #if NEED_BOND_MANAGER /* disabled by default */ 00115 ble_bondmngr_on_ble_evt(p_ble_evt); 00116 #endif 00117 #if SDK_CONN_PARAMS_MODULE_ENABLE 00118 ble_conn_params_on_ble_evt(p_ble_evt); 00119 #endif 00120 00121 /* Custom event handler */ 00122 switch (p_ble_evt->header.evt_id) { 00123 case BLE_GAP_EVT_CONNECTED: { 00124 Gap::Handle_t handle = p_ble_evt->evt.gap_evt.conn_handle; 00125 nRF51Gap::getInstance().setConnectionHandle(handle); 00126 const Gap::ConnectionParams_t *params = reinterpret_cast<Gap::ConnectionParams_t *>(&(p_ble_evt->evt.gap_evt.params.connected.conn_params)); 00127 nRF51Gap::getInstance().processConnectionEvent(handle, params); 00128 break; 00129 } 00130 00131 case BLE_GAP_EVT_DISCONNECTED: { 00132 Gap::Handle_t handle = p_ble_evt->evt.gap_evt.conn_handle; 00133 // Since we are not in a connection and have not started advertising, 00134 // store bonds 00135 nRF51Gap::getInstance().setConnectionHandle (BLE_CONN_HANDLE_INVALID); 00136 #if NEED_BOND_MANAGER /* disabled by default */ 00137 ASSERT_STATUS_RET_VOID ( ble_bondmngr_bonded_centrals_store()); 00138 #endif 00139 00140 if (p_ble_evt->evt.gap_evt.params.disconnected.reason == BLE_HCI_LOCAL_HOST_TERMINATED_CONNECTION) { 00141 nRF51Gap::getInstance().processDisconnectionEvent(handle, Gap::LOCAL_HOST_TERMINATED_CONNECTION); 00142 } 00143 break; 00144 } 00145 00146 case BLE_GAP_EVT_SEC_PARAMS_REQUEST: { 00147 ble_gap_sec_params_t sec_params = {0}; 00148 00149 sec_params.timeout = 30; /*< Timeout for Pairing Request or 00150 * Security Request (in seconds). */ 00151 sec_params.bond = 1; /**< Perform bonding. */ 00152 sec_params.mitm = CFG_BLE_SEC_PARAM_MITM; 00153 sec_params.io_caps = CFG_BLE_SEC_PARAM_IO_CAPABILITIES; 00154 sec_params.oob = CFG_BLE_SEC_PARAM_OOB; 00155 sec_params.min_key_size = CFG_BLE_SEC_PARAM_MIN_KEY_SIZE; 00156 sec_params.max_key_size = CFG_BLE_SEC_PARAM_MAX_KEY_SIZE; 00157 00158 ASSERT_STATUS_RET_VOID(sd_ble_gap_sec_params_reply(nRF51Gap::getInstance().getConnectionHandle(), 00159 BLE_GAP_SEC_STATUS_SUCCESS, &sec_params)); 00160 } 00161 break; 00162 00163 case BLE_GAP_EVT_TIMEOUT: 00164 if (p_ble_evt->evt.gap_evt.params.timeout.src == BLE_GAP_TIMEOUT_SRC_ADVERTISEMENT) { 00165 nRF51Gap::getInstance().processEvent(GapEvents::GAP_EVENT_TIMEOUT); 00166 } 00167 break; 00168 00169 case BLE_GATTC_EVT_TIMEOUT: 00170 case BLE_GATTS_EVT_TIMEOUT: 00171 // Disconnect on GATT Server and Client timeout events. 00172 // ASSERT_STATUS_RET_VOID (sd_ble_gap_disconnect(m_conn_handle, 00173 // BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION)); 00174 break; 00175 00176 default: 00177 break; 00178 } 00179 00180 nRF51GattServer::getInstance().hwCallback(p_ble_evt); 00181 } 00182 00183 #if NEED_BOND_MANAGER /* disabled by default */ 00184 /**************************************************************************/ 00185 /*! 00186 @brief Initialises the bond manager 00187 00188 @note Bond data will be cleared on reset if the bond delete 00189 button is pressed during initialisation (the button is 00190 defined as CFG_BLE_BOND_DELETE_BUTTON_NUM). 00191 00192 @returns 00193 */ 00194 /**************************************************************************/ 00195 static error_t bond_manager_init(void) 00196 { 00197 ble_bondmngr_init_t bond_para = {0}; 00198 00199 ASSERT_STATUS ( pstorage_init()); 00200 00201 bond_para.flash_page_num_bond = CFG_BLE_BOND_FLASH_PAGE_BOND; 00202 bond_para.flash_page_num_sys_attr = CFG_BLE_BOND_FLASH_PAGE_SYS_ATTR; 00203 //bond_para.bonds_delete = boardButtonCheck(CFG_BLE_BOND_DELETE_BUTTON_NUM) ; 00204 bond_para.evt_handler = NULL; 00205 bond_para.error_handler = service_error_callback; 00206 00207 ASSERT_STATUS( ble_bondmngr_init( &bond_para )); 00208 00209 /* Init radio active/inactive notification to flash (to only perform flashing when the radio is inactive) */ 00210 // ASSERT_STATUS( ble_radio_notification_init(NRF_APP_PRIORITY_HIGH, 00211 // NRF_RADIO_NOTIFICATION_DISTANCE_4560US, 00212 // ble_flash_on_radio_active_evt) ); 00213 00214 return ERROR_NONE; 00215 } 00216 #endif // #if NEED_BOND_MANAGER 00217 00218 #if NEED_BOND_MANAGER /* disabled by default */ 00219 /**************************************************************************/ 00220 /*! 00221 @brief 00222 @param[in] nrf_error 00223 @returns 00224 */ 00225 /**************************************************************************/ 00226 static void service_error_callback(uint32_t nrf_error) 00227 { 00228 ASSERT_STATUS_RET_VOID( nrf_error ); 00229 } 00230 #endif // #if NEED_BOND_MANAGER 00231 00232 /**************************************************************************/ 00233 /*! 00234 @brief Callback when an error occurs inside the SoftDevice 00235 00236 @param[in] line_num 00237 @param[in] p-file_name 00238 00239 @returns 00240 */ 00241 /**************************************************************************/ 00242 void assert_nrf_callback(uint16_t line_num, const uint8_t *p_file_name) 00243 { 00244 ASSERT(false, (void) 0); 00245 } 00246 00247 /**************************************************************************/ 00248 /*! 00249 @brief Handler for general errors above the SoftDevice layer. 00250 Typically we can' recover from this so we do a reset. 00251 00252 @param[in] error_code 00253 @param[in] line_num 00254 @param[in] p-file_name 00255 00256 @returns 00257 */ 00258 /**************************************************************************/ 00259 void app_error_handler(uint32_t error_code, 00260 uint32_t line_num, 00261 const uint8_t *p_file_name) 00262 { 00263 ASSERT_STATUS_RET_VOID( error_code ); 00264 NVIC_SystemReset(); 00265 }
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