Productize / nRF51822

library for BLE_GAP_backpack

Dependencies:   nrf51-sdk

Fork of nRF51822 by Nordic Semiconductor

source/btle/btle.cpp@563:9c4b96f7be8d, 2016-01-11 (annotated)

Committer:
vcoubard
Date:
Mon Jan 11 10:19:16 2016 +0000
Revision:
563:9c4b96f7be8d
Parent:
549:3f782c64d014
Child:
565:cf03471a4ec4
Synchronized with git rev 7e784e0e

Author: Vincent Coubard

Merge branch 'develop' of https://github.com/ARMmbed/ble-nrf51822 into characteristicDescriptorDiscovery

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vcoubard 541:884f95bf5351 1 /* mbed Microcontroller Library
vcoubard 541:884f95bf5351 2 * Copyright (c) 2006-2013 ARM Limited
vcoubard 541:884f95bf5351 3 *
vcoubard 541:884f95bf5351 4 * Licensed under the Apache License, Version 2.0 (the "License");
vcoubard 541:884f95bf5351 5 * you may not use this file except in compliance with the License.
vcoubard 541:884f95bf5351 6 * You may obtain a copy of the License at
vcoubard 541:884f95bf5351 7 *
vcoubard 541:884f95bf5351 8 * http://www.apache.org/licenses/LICENSE-2.0
vcoubard 541:884f95bf5351 9 *
vcoubard 541:884f95bf5351 10 * Unless required by applicable law or agreed to in writing, software
vcoubard 541:884f95bf5351 11 * distributed under the License is distributed on an "AS IS" BASIS,
vcoubard 541:884f95bf5351 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vcoubard 541:884f95bf5351 13 * See the License for the specific language governing permissions and
vcoubard 541:884f95bf5351 14 * limitations under the License.
vcoubard 541:884f95bf5351 15 */
vcoubard 541:884f95bf5351 16
vcoubard 541:884f95bf5351 17 #include "common/common.h"
vcoubard 541:884f95bf5351 18 #include "nordic_common.h"
vcoubard 541:884f95bf5351 19
vcoubard 541:884f95bf5351 20 #include "btle.h"
vcoubard 541:884f95bf5351 21
vcoubard 541:884f95bf5351 22 #include "ble_flash.h"
vcoubard 541:884f95bf5351 23 #include "ble_conn_params.h"
vcoubard 541:884f95bf5351 24
vcoubard 541:884f95bf5351 25 #include "btle_gap.h"
vcoubard 541:884f95bf5351 26 #include "btle_advertising.h"
vcoubard 541:884f95bf5351 27 #include "custom/custom_helper.h"
vcoubard 541:884f95bf5351 28
vcoubard 541:884f95bf5351 29 #include "ble/GapEvents.h"
vcoubard 541:884f95bf5351 30 #include "nRF5xGap.h"
vcoubard 541:884f95bf5351 31 #include "nRF5xGattServer.h"
vcoubard 541:884f95bf5351 32 #include "nRF5xSecurityManager.h"
vcoubard 541:884f95bf5351 33
vcoubard 549:3f782c64d014 34 extern "C" {
vcoubard 549:3f782c64d014 35 #include "pstorage.h"
vcoubard 541:884f95bf5351 36 #include "device_manager.h"
vcoubard 549:3f782c64d014 37 #include "softdevice_handler.h"
vcoubard 549:3f782c64d014 38 #include "ble_stack_handler_types.h"
vcoubard 549:3f782c64d014 39 }
vcoubard 541:884f95bf5351 40
vcoubard 541:884f95bf5351 41 #include "ble_hci.h"
vcoubard 541:884f95bf5351 42 #include "btle_discovery.h"
vcoubard 541:884f95bf5351 43
vcoubard 563:9c4b96f7be8d 44 #include "nRF5xGattClient.h"
vcoubard 563:9c4b96f7be8d 45 #include "nRF5xServiceDiscovery.h"
vcoubard 563:9c4b96f7be8d 46 #include "nRF5xCharacteristicDescriptorDiscoverer.h"
vcoubard 563:9c4b96f7be8d 47
vcoubard 541:884f95bf5351 48 extern "C" void assert_nrf_callback(uint16_t line_num, const uint8_t *p_file_name);
vcoubard 541:884f95bf5351 49 void app_error_handler(uint32_t error_code, uint32_t line_num, const uint8_t *p_file_name);
vcoubard 541:884f95bf5351 50
vcoubard 541:884f95bf5351 51 static void btle_handler(ble_evt_t *p_ble_evt);
vcoubard 541:884f95bf5351 52
vcoubard 541:884f95bf5351 53 static void sys_evt_dispatch(uint32_t sys_evt)
vcoubard 541:884f95bf5351 54 {
vcoubard 541:884f95bf5351 55 pstorage_sys_event_handler(sys_evt);
vcoubard 541:884f95bf5351 56 }
vcoubard 541:884f95bf5351 57
vcoubard 541:884f95bf5351 58 /**
vcoubard 541:884f95bf5351 59 * This function is called in interrupt context to handle BLE events; i.e. pull
vcoubard 541:884f95bf5351 60 * system and user events out of the pending events-queue of the BLE stack. The
vcoubard 541:884f95bf5351 61 * BLE stack signals the availability of events by the triggering the SWI2
vcoubard 541:884f95bf5351 62 * interrupt, which forwards the handling to this function.
vcoubard 541:884f95bf5351 63 *
vcoubard 541:884f95bf5351 64 * The event processing loop is implemented in intern_softdevice_events_execute().
vcoubard 541:884f95bf5351 65 *
vcoubard 541:884f95bf5351 66 * In mbed OS, a callback for intern_softdevice_events_execute() is posted
vcoubard 541:884f95bf5351 67 * to the scheduler, which then executes in thread mode. In mbed-classic,
vcoubard 541:884f95bf5351 68 * event processing happens right-away in interrupt context (which is more
vcoubard 541:884f95bf5351 69 * risk-prone). In either case, the logic of event processing is identical.
vcoubard 541:884f95bf5351 70 */
vcoubard 541:884f95bf5351 71 static uint32_t eventHandler()
vcoubard 541:884f95bf5351 72 {
vcoubard 541:884f95bf5351 73 #ifdef YOTTA_CFG_MBED_OS
vcoubard 541:884f95bf5351 74 minar::Scheduler::postCallback(intern_softdevice_events_execute);
vcoubard 541:884f95bf5351 75 #else
vcoubard 541:884f95bf5351 76 intern_softdevice_events_execute();
vcoubard 541:884f95bf5351 77 #endif
vcoubard 541:884f95bf5351 78
vcoubard 541:884f95bf5351 79 return NRF_SUCCESS;
vcoubard 541:884f95bf5351 80 }
vcoubard 541:884f95bf5351 81
vcoubard 541:884f95bf5351 82 error_t btle_init(void)
vcoubard 541:884f95bf5351 83 {
vcoubard 541:884f95bf5351 84 nrf_clock_lfclksrc_t clockSource;
vcoubard 541:884f95bf5351 85 if (NRF_CLOCK->LFCLKSRC & (CLOCK_LFCLKSRC_SRC_Xtal << CLOCK_LFCLKSRC_SRC_Pos)) {
vcoubard 541:884f95bf5351 86 clockSource = NRF_CLOCK_LFCLKSRC_XTAL_20_PPM;
vcoubard 541:884f95bf5351 87 } else {
vcoubard 541:884f95bf5351 88 clockSource = NRF_CLOCK_LFCLKSRC_RC_250_PPM_4000MS_CALIBRATION;
vcoubard 541:884f95bf5351 89 }
vcoubard 541:884f95bf5351 90 SOFTDEVICE_HANDLER_INIT(clockSource, eventHandler);
vcoubard 541:884f95bf5351 91
vcoubard 541:884f95bf5351 92 // Enable BLE stack
vcoubard 541:884f95bf5351 93 /**
vcoubard 541:884f95bf5351 94 * Using this call, the application can select whether to include the
vcoubard 541:884f95bf5351 95 * Service Changed characteristic in the GATT Server. The default in all
vcoubard 541:884f95bf5351 96 * previous releases has been to include the Service Changed characteristic,
vcoubard 541:884f95bf5351 97 * but this affects how GATT clients behave. Specifically, it requires
vcoubard 541:884f95bf5351 98 * clients to subscribe to this attribute and not to cache attribute handles
vcoubard 541:884f95bf5351 99 * between connections unless the devices are bonded. If the application
vcoubard 541:884f95bf5351 100 * does not need to change the structure of the GATT server attributes at
vcoubard 541:884f95bf5351 101 * runtime this adds unnecessary complexity to the interaction with peer
vcoubard 541:884f95bf5351 102 * clients. If the SoftDevice is enabled with the Service Changed
vcoubard 541:884f95bf5351 103 * Characteristics turned off, then clients are allowed to cache attribute
vcoubard 541:884f95bf5351 104 * handles making applications simpler on both sides.
vcoubard 541:884f95bf5351 105 */
vcoubard 541:884f95bf5351 106 static const bool IS_SRVC_CHANGED_CHARACT_PRESENT = true;
vcoubard 541:884f95bf5351 107 ble_enable_params_t enableParams = {
vcoubard 541:884f95bf5351 108 .gatts_enable_params = {
vcoubard 541:884f95bf5351 109 .service_changed = IS_SRVC_CHANGED_CHARACT_PRESENT
vcoubard 541:884f95bf5351 110 }
vcoubard 541:884f95bf5351 111 };
vcoubard 541:884f95bf5351 112 if (sd_ble_enable(&enableParams) != NRF_SUCCESS) {
vcoubard 541:884f95bf5351 113 return ERROR_INVALID_PARAM;
vcoubard 541:884f95bf5351 114 }
vcoubard 541:884f95bf5351 115
vcoubard 541:884f95bf5351 116 ble_gap_addr_t addr;
vcoubard 541:884f95bf5351 117 if (sd_ble_gap_address_get(&addr) != NRF_SUCCESS) {
vcoubard 541:884f95bf5351 118 return ERROR_INVALID_PARAM;
vcoubard 541:884f95bf5351 119 }
vcoubard 541:884f95bf5351 120 if (sd_ble_gap_address_set(BLE_GAP_ADDR_CYCLE_MODE_NONE, &addr) != NRF_SUCCESS) {
vcoubard 541:884f95bf5351 121 return ERROR_INVALID_PARAM;
vcoubard 541:884f95bf5351 122 }
vcoubard 541:884f95bf5351 123
vcoubard 541:884f95bf5351 124 ASSERT_STATUS( softdevice_ble_evt_handler_set(btle_handler));
vcoubard 541:884f95bf5351 125 ASSERT_STATUS( softdevice_sys_evt_handler_set(sys_evt_dispatch));
vcoubard 541:884f95bf5351 126
vcoubard 541:884f95bf5351 127 btle_gap_init();
vcoubard 541:884f95bf5351 128
vcoubard 541:884f95bf5351 129 return ERROR_NONE;
vcoubard 541:884f95bf5351 130 }
vcoubard 541:884f95bf5351 131
vcoubard 541:884f95bf5351 132 static void btle_handler(ble_evt_t *p_ble_evt)
vcoubard 541:884f95bf5351 133 {
vcoubard 541:884f95bf5351 134 /* Library service handlers */
vcoubard 541:884f95bf5351 135 #if SDK_CONN_PARAMS_MODULE_ENABLE
vcoubard 541:884f95bf5351 136 ble_conn_params_on_ble_evt(p_ble_evt);
vcoubard 541:884f95bf5351 137 #endif
vcoubard 541:884f95bf5351 138
vcoubard 541:884f95bf5351 139 dm_ble_evt_handler(p_ble_evt);
vcoubard 541:884f95bf5351 140
vcoubard 541:884f95bf5351 141 #if !defined(TARGET_MCU_NRF51_16K_S110) && !defined(TARGET_MCU_NRF51_32K_S110)
vcoubard 541:884f95bf5351 142 bleGattcEventHandler(p_ble_evt);
vcoubard 541:884f95bf5351 143 #endif
vcoubard 541:884f95bf5351 144
vcoubard 541:884f95bf5351 145 /* Custom event handler */
vcoubard 541:884f95bf5351 146 switch (p_ble_evt->header.evt_id) {
vcoubard 541:884f95bf5351 147 case BLE_GAP_EVT_CONNECTED: {
vcoubard 541:884f95bf5351 148 Gap::Handle_t handle = p_ble_evt->evt.gap_evt.conn_handle;
vcoubard 541:884f95bf5351 149 #if defined(TARGET_MCU_NRF51_16K_S110) || defined(TARGET_MCU_NRF51_32K_S110)
vcoubard 541:884f95bf5351 150 /* Only peripheral role is supported by S110 */
vcoubard 541:884f95bf5351 151 Gap::Role_t role = Gap::PERIPHERAL;
vcoubard 541:884f95bf5351 152 #else
vcoubard 541:884f95bf5351 153 Gap::Role_t role = static_cast<Gap::Role_t>(p_ble_evt->evt.gap_evt.params.connected.role);
vcoubard 541:884f95bf5351 154 #endif
vcoubard 541:884f95bf5351 155 nRF5xGap::getInstance().setConnectionHandle(handle);
vcoubard 541:884f95bf5351 156 const Gap::ConnectionParams_t *params = reinterpret_cast<Gap::ConnectionParams_t *>(&(p_ble_evt->evt.gap_evt.params.connected.conn_params));
vcoubard 541:884f95bf5351 157 const ble_gap_addr_t *peer = &p_ble_evt->evt.gap_evt.params.connected.peer_addr;
vcoubard 541:884f95bf5351 158 const ble_gap_addr_t *own = &p_ble_evt->evt.gap_evt.params.connected.own_addr;
vcoubard 541:884f95bf5351 159 nRF5xGap::getInstance().processConnectionEvent(handle,
vcoubard 541:884f95bf5351 160 role,
vcoubard 541:884f95bf5351 161 static_cast<Gap::AddressType_t>(peer->addr_type), peer->addr,
vcoubard 541:884f95bf5351 162 static_cast<Gap::AddressType_t>(own->addr_type), own->addr,
vcoubard 541:884f95bf5351 163 params);
vcoubard 541:884f95bf5351 164 break;
vcoubard 541:884f95bf5351 165 }
vcoubard 541:884f95bf5351 166
vcoubard 541:884f95bf5351 167 case BLE_GAP_EVT_DISCONNECTED: {
vcoubard 541:884f95bf5351 168 Gap::Handle_t handle = p_ble_evt->evt.gap_evt.conn_handle;
vcoubard 541:884f95bf5351 169 // Since we are not in a connection and have not started advertising,
vcoubard 541:884f95bf5351 170 // store bonds
vcoubard 541:884f95bf5351 171 nRF5xGap::getInstance().setConnectionHandle (BLE_CONN_HANDLE_INVALID);
vcoubard 541:884f95bf5351 172
vcoubard 541:884f95bf5351 173 Gap::DisconnectionReason_t reason;
vcoubard 541:884f95bf5351 174 switch (p_ble_evt->evt.gap_evt.params.disconnected.reason) {
vcoubard 541:884f95bf5351 175 case BLE_HCI_LOCAL_HOST_TERMINATED_CONNECTION:
vcoubard 541:884f95bf5351 176 reason = Gap::LOCAL_HOST_TERMINATED_CONNECTION;
vcoubard 541:884f95bf5351 177 break;
vcoubard 541:884f95bf5351 178 case BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION:
vcoubard 541:884f95bf5351 179 reason = Gap::REMOTE_USER_TERMINATED_CONNECTION;
vcoubard 541:884f95bf5351 180 break;
vcoubard 541:884f95bf5351 181 case BLE_HCI_CONN_INTERVAL_UNACCEPTABLE:
vcoubard 541:884f95bf5351 182 reason = Gap::CONN_INTERVAL_UNACCEPTABLE;
vcoubard 541:884f95bf5351 183 break;
vcoubard 541:884f95bf5351 184 default:
vcoubard 541:884f95bf5351 185 /* Please refer to the underlying transport library for an
vcoubard 541:884f95bf5351 186 * interpretion of this reason's value. */
vcoubard 541:884f95bf5351 187 reason = static_cast<Gap::DisconnectionReason_t>(p_ble_evt->evt.gap_evt.params.disconnected.reason);
vcoubard 541:884f95bf5351 188 break;
vcoubard 541:884f95bf5351 189 }
vcoubard 563:9c4b96f7be8d 190
vcoubard 563:9c4b96f7be8d 191 // Close all pending discoveries for this connection
vcoubard 563:9c4b96f7be8d 192 nRF5xGattClient& gattClient = nRF5xGattClient::getInstance();
vcoubard 563:9c4b96f7be8d 193 gattClient.characteristicDescriptorDiscoverer().terminate(handle, BLE_ERROR_INVALID_STATE);
vcoubard 563:9c4b96f7be8d 194 gattClient.discovery().terminate(handle);
vcoubard 563:9c4b96f7be8d 195
vcoubard 541:884f95bf5351 196 nRF5xGap::getInstance().processDisconnectionEvent(handle, reason);
vcoubard 541:884f95bf5351 197 break;
vcoubard 541:884f95bf5351 198 }
vcoubard 541:884f95bf5351 199
vcoubard 541:884f95bf5351 200 case BLE_GAP_EVT_PASSKEY_DISPLAY:
vcoubard 541:884f95bf5351 201 nRF5xSecurityManager::getInstance().processPasskeyDisplayEvent(p_ble_evt->evt.gap_evt.conn_handle, p_ble_evt->evt.gap_evt.params.passkey_display.passkey);
vcoubard 541:884f95bf5351 202 break;
vcoubard 541:884f95bf5351 203
vcoubard 541:884f95bf5351 204 case BLE_GAP_EVT_TIMEOUT:
vcoubard 541:884f95bf5351 205 nRF5xGap::getInstance().processTimeoutEvent(static_cast<Gap::TimeoutSource_t>(p_ble_evt->evt.gap_evt.params.timeout.src));
vcoubard 541:884f95bf5351 206 break;
vcoubard 541:884f95bf5351 207
vcoubard 541:884f95bf5351 208 case BLE_GATTC_EVT_TIMEOUT:
vcoubard 541:884f95bf5351 209 case BLE_GATTS_EVT_TIMEOUT:
vcoubard 541:884f95bf5351 210 // Disconnect on GATT Server and Client timeout events.
vcoubard 541:884f95bf5351 211 // ASSERT_STATUS_RET_VOID (sd_ble_gap_disconnect(m_conn_handle,
vcoubard 541:884f95bf5351 212 // BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION));
vcoubard 541:884f95bf5351 213 break;
vcoubard 541:884f95bf5351 214
vcoubard 541:884f95bf5351 215 case BLE_GAP_EVT_ADV_REPORT: {
vcoubard 541:884f95bf5351 216 const ble_gap_evt_adv_report_t *advReport = &p_ble_evt->evt.gap_evt.params.adv_report;
vcoubard 541:884f95bf5351 217 nRF5xGap::getInstance().processAdvertisementReport(advReport->peer_addr.addr,
vcoubard 541:884f95bf5351 218 advReport->rssi,
vcoubard 541:884f95bf5351 219 advReport->scan_rsp,
vcoubard 541:884f95bf5351 220 static_cast<GapAdvertisingParams::AdvertisingType_t>(advReport->type),
vcoubard 541:884f95bf5351 221 advReport->dlen,
vcoubard 541:884f95bf5351 222 advReport->data);
vcoubard 541:884f95bf5351 223 break;
vcoubard 541:884f95bf5351 224 }
vcoubard 541:884f95bf5351 225
vcoubard 541:884f95bf5351 226 default:
vcoubard 541:884f95bf5351 227 break;
vcoubard 541:884f95bf5351 228 }
vcoubard 541:884f95bf5351 229
vcoubard 541:884f95bf5351 230 nRF5xGattServer::getInstance().hwCallback(p_ble_evt);
vcoubard 541:884f95bf5351 231 }
vcoubard 541:884f95bf5351 232
vcoubard 541:884f95bf5351 233 /*! @brief Callback when an error occurs inside the SoftDevice */
vcoubard 541:884f95bf5351 234 void assert_nrf_callback(uint16_t line_num, const uint8_t *p_file_name)
vcoubard 541:884f95bf5351 235 {
vcoubard 541:884f95bf5351 236 ASSERT(false, (void) 0);
vcoubard 541:884f95bf5351 237 }
vcoubard 541:884f95bf5351 238
vcoubard 541:884f95bf5351 239 /*!
vcoubard 541:884f95bf5351 240 @brief Handler for general errors above the SoftDevice layer.
vcoubard 541:884f95bf5351 241 Typically we can' recover from this so we do a reset.
vcoubard 541:884f95bf5351 242 */
vcoubard 541:884f95bf5351 243 void app_error_handler(uint32_t error_code, uint32_t line_num, const uint8_t *p_file_name)
vcoubard 541:884f95bf5351 244 {
vcoubard 541:884f95bf5351 245 ASSERT_STATUS_RET_VOID( error_code );
vcoubard 541:884f95bf5351 246 NVIC_SystemReset();
rgrover1 77:9886b2865631 247 }