Junichi Katsu / nRF51822

test

Dependencies:   nrf51-sdk

Dependents:   microbit-dal

Fork of nRF51822 by Lancaster University

source/btle/btle.cpp@542:1bf9c597f44f, 2016-01-11 (annotated)

Committer:
vcoubard
Date:
Mon Jan 11 10:19:02 2016 +0000
Revision:
542:1bf9c597f44f
Parent:
541:884f95bf5351
Child:
548:920e941cbe1e
Synchronized with git rev e15d59a7

Author: Vincent Coubard

Add Characteristic Descriptor Discovery implementation

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_stack_handler_types.h"
vcoubard 541:884f95bf5351 23 #include "ble_flash.h"
vcoubard 541:884f95bf5351 24 #include "ble_conn_params.h"
vcoubard 541:884f95bf5351 25
vcoubard 541:884f95bf5351 26 #include "btle_gap.h"
vcoubard 541:884f95bf5351 27 #include "btle_advertising.h"
vcoubard 541:884f95bf5351 28 #include "custom/custom_helper.h"
vcoubard 541:884f95bf5351 29
vcoubard 541:884f95bf5351 30 #include "softdevice_handler.h"
vcoubard 541:884f95bf5351 31 #include "pstorage.h"
vcoubard 541:884f95bf5351 32
vcoubard 541:884f95bf5351 33 #include "ble/GapEvents.h"
vcoubard 541:884f95bf5351 34 #include "nRF5xGap.h"
vcoubard 541:884f95bf5351 35 #include "nRF5xGattServer.h"
vcoubard 541:884f95bf5351 36 #include "nRF5xSecurityManager.h"
vcoubard 541:884f95bf5351 37
vcoubard 541:884f95bf5351 38 #include "device_manager.h"
vcoubard 541:884f95bf5351 39
vcoubard 541:884f95bf5351 40 #include "ble_hci.h"
vcoubard 541:884f95bf5351 41 #include "btle_discovery.h"
vcoubard 541:884f95bf5351 42
vcoubard 541:884f95bf5351 43 extern "C" void assert_nrf_callback(uint16_t line_num, const uint8_t *p_file_name);
vcoubard 541:884f95bf5351 44 void app_error_handler(uint32_t error_code, uint32_t line_num, const uint8_t *p_file_name);
vcoubard 541:884f95bf5351 45
vcoubard 541:884f95bf5351 46 static void btle_handler(ble_evt_t *p_ble_evt);
vcoubard 541:884f95bf5351 47
vcoubard 541:884f95bf5351 48 static void sys_evt_dispatch(uint32_t sys_evt)
vcoubard 541:884f95bf5351 49 {
vcoubard 541:884f95bf5351 50 pstorage_sys_event_handler(sys_evt);
vcoubard 541:884f95bf5351 51 }
vcoubard 541:884f95bf5351 52
vcoubard 541:884f95bf5351 53 /**
vcoubard 541:884f95bf5351 54 * This function is called in interrupt context to handle BLE events; i.e. pull
vcoubard 541:884f95bf5351 55 * system and user events out of the pending events-queue of the BLE stack. The
vcoubard 541:884f95bf5351 56 * BLE stack signals the availability of events by the triggering the SWI2
vcoubard 541:884f95bf5351 57 * interrupt, which forwards the handling to this function.
vcoubard 541:884f95bf5351 58 *
vcoubard 541:884f95bf5351 59 * The event processing loop is implemented in intern_softdevice_events_execute().
vcoubard 541:884f95bf5351 60 *
vcoubard 541:884f95bf5351 61 * In mbed OS, a callback for intern_softdevice_events_execute() is posted
vcoubard 541:884f95bf5351 62 * to the scheduler, which then executes in thread mode. In mbed-classic,
vcoubard 541:884f95bf5351 63 * event processing happens right-away in interrupt context (which is more
vcoubard 541:884f95bf5351 64 * risk-prone). In either case, the logic of event processing is identical.
vcoubard 541:884f95bf5351 65 */
vcoubard 541:884f95bf5351 66 static uint32_t eventHandler()
vcoubard 541:884f95bf5351 67 {
vcoubard 541:884f95bf5351 68 #ifdef YOTTA_CFG_MBED_OS
vcoubard 541:884f95bf5351 69 minar::Scheduler::postCallback(intern_softdevice_events_execute);
vcoubard 541:884f95bf5351 70 #else
vcoubard 541:884f95bf5351 71 intern_softdevice_events_execute();
vcoubard 541:884f95bf5351 72 #endif
vcoubard 541:884f95bf5351 73
vcoubard 541:884f95bf5351 74 return NRF_SUCCESS;
vcoubard 541:884f95bf5351 75 }
vcoubard 541:884f95bf5351 76
vcoubard 541:884f95bf5351 77 error_t btle_init(void)
vcoubard 541:884f95bf5351 78 {
vcoubard 541:884f95bf5351 79 nrf_clock_lfclksrc_t clockSource;
vcoubard 541:884f95bf5351 80 if (NRF_CLOCK->LFCLKSRC & (CLOCK_LFCLKSRC_SRC_Xtal << CLOCK_LFCLKSRC_SRC_Pos)) {
vcoubard 541:884f95bf5351 81 clockSource = NRF_CLOCK_LFCLKSRC_XTAL_20_PPM;
vcoubard 541:884f95bf5351 82 } else {
vcoubard 541:884f95bf5351 83 clockSource = NRF_CLOCK_LFCLKSRC_RC_250_PPM_4000MS_CALIBRATION;
vcoubard 541:884f95bf5351 84 }
vcoubard 541:884f95bf5351 85 SOFTDEVICE_HANDLER_INIT(clockSource, eventHandler);
vcoubard 541:884f95bf5351 86
vcoubard 541:884f95bf5351 87 // Enable BLE stack
vcoubard 541:884f95bf5351 88 /**
vcoubard 541:884f95bf5351 89 * Using this call, the application can select whether to include the
vcoubard 541:884f95bf5351 90 * Service Changed characteristic in the GATT Server. The default in all
vcoubard 541:884f95bf5351 91 * previous releases has been to include the Service Changed characteristic,
vcoubard 541:884f95bf5351 92 * but this affects how GATT clients behave. Specifically, it requires
vcoubard 541:884f95bf5351 93 * clients to subscribe to this attribute and not to cache attribute handles
vcoubard 541:884f95bf5351 94 * between connections unless the devices are bonded. If the application
vcoubard 541:884f95bf5351 95 * does not need to change the structure of the GATT server attributes at
vcoubard 541:884f95bf5351 96 * runtime this adds unnecessary complexity to the interaction with peer
vcoubard 541:884f95bf5351 97 * clients. If the SoftDevice is enabled with the Service Changed
vcoubard 541:884f95bf5351 98 * Characteristics turned off, then clients are allowed to cache attribute
vcoubard 541:884f95bf5351 99 * handles making applications simpler on both sides.
vcoubard 541:884f95bf5351 100 */
vcoubard 541:884f95bf5351 101 static const bool IS_SRVC_CHANGED_CHARACT_PRESENT = true;
vcoubard 541:884f95bf5351 102 ble_enable_params_t enableParams = {
vcoubard 541:884f95bf5351 103 .gatts_enable_params = {
vcoubard 541:884f95bf5351 104 .service_changed = IS_SRVC_CHANGED_CHARACT_PRESENT
vcoubard 541:884f95bf5351 105 }
vcoubard 541:884f95bf5351 106 };
vcoubard 541:884f95bf5351 107 if (sd_ble_enable(&enableParams) != NRF_SUCCESS) {
vcoubard 541:884f95bf5351 108 return ERROR_INVALID_PARAM;
vcoubard 541:884f95bf5351 109 }
vcoubard 541:884f95bf5351 110
vcoubard 541:884f95bf5351 111 ble_gap_addr_t addr;
vcoubard 541:884f95bf5351 112 if (sd_ble_gap_address_get(&addr) != NRF_SUCCESS) {
vcoubard 541:884f95bf5351 113 return ERROR_INVALID_PARAM;
vcoubard 541:884f95bf5351 114 }
vcoubard 541:884f95bf5351 115 if (sd_ble_gap_address_set(BLE_GAP_ADDR_CYCLE_MODE_NONE, &addr) != NRF_SUCCESS) {
vcoubard 541:884f95bf5351 116 return ERROR_INVALID_PARAM;
vcoubard 541:884f95bf5351 117 }
vcoubard 541:884f95bf5351 118
vcoubard 541:884f95bf5351 119 ASSERT_STATUS( softdevice_ble_evt_handler_set(btle_handler));
vcoubard 541:884f95bf5351 120 ASSERT_STATUS( softdevice_sys_evt_handler_set(sys_evt_dispatch));
vcoubard 541:884f95bf5351 121
vcoubard 541:884f95bf5351 122 btle_gap_init();
vcoubard 541:884f95bf5351 123
vcoubard 541:884f95bf5351 124 return ERROR_NONE;
vcoubard 541:884f95bf5351 125 }
vcoubard 541:884f95bf5351 126
vcoubard 541:884f95bf5351 127 static void btle_handler(ble_evt_t *p_ble_evt)
vcoubard 541:884f95bf5351 128 {
vcoubard 541:884f95bf5351 129 /* Library service handlers */
vcoubard 541:884f95bf5351 130 #if SDK_CONN_PARAMS_MODULE_ENABLE
vcoubard 541:884f95bf5351 131 ble_conn_params_on_ble_evt(p_ble_evt);
vcoubard 541:884f95bf5351 132 #endif
vcoubard 541:884f95bf5351 133
vcoubard 541:884f95bf5351 134 dm_ble_evt_handler(p_ble_evt);
vcoubard 541:884f95bf5351 135
vcoubard 541:884f95bf5351 136 #if !defined(TARGET_MCU_NRF51_16K_S110) && !defined(TARGET_MCU_NRF51_32K_S110)
vcoubard 541:884f95bf5351 137 bleGattcEventHandler(p_ble_evt);
vcoubard 541:884f95bf5351 138 #endif
vcoubard 541:884f95bf5351 139
vcoubard 541:884f95bf5351 140 /* Custom event handler */
vcoubard 541:884f95bf5351 141 switch (p_ble_evt->header.evt_id) {
vcoubard 541:884f95bf5351 142 case BLE_GAP_EVT_CONNECTED: {
vcoubard 541:884f95bf5351 143 Gap::Handle_t handle = p_ble_evt->evt.gap_evt.conn_handle;
vcoubard 541:884f95bf5351 144 #if defined(TARGET_MCU_NRF51_16K_S110) || defined(TARGET_MCU_NRF51_32K_S110)
vcoubard 541:884f95bf5351 145 /* Only peripheral role is supported by S110 */
vcoubard 541:884f95bf5351 146 Gap::Role_t role = Gap::PERIPHERAL;
vcoubard 541:884f95bf5351 147 #else
vcoubard 541:884f95bf5351 148 Gap::Role_t role = static_cast<Gap::Role_t>(p_ble_evt->evt.gap_evt.params.connected.role);
vcoubard 541:884f95bf5351 149 #endif
vcoubard 541:884f95bf5351 150 nRF5xGap::getInstance().setConnectionHandle(handle);
vcoubard 541:884f95bf5351 151 const Gap::ConnectionParams_t *params = reinterpret_cast<Gap::ConnectionParams_t *>(&(p_ble_evt->evt.gap_evt.params.connected.conn_params));
vcoubard 541:884f95bf5351 152 const ble_gap_addr_t *peer = &p_ble_evt->evt.gap_evt.params.connected.peer_addr;
vcoubard 541:884f95bf5351 153 const ble_gap_addr_t *own = &p_ble_evt->evt.gap_evt.params.connected.own_addr;
vcoubard 541:884f95bf5351 154 nRF5xGap::getInstance().processConnectionEvent(handle,
vcoubard 541:884f95bf5351 155 role,
vcoubard 541:884f95bf5351 156 static_cast<Gap::AddressType_t>(peer->addr_type), peer->addr,
vcoubard 541:884f95bf5351 157 static_cast<Gap::AddressType_t>(own->addr_type), own->addr,
vcoubard 541:884f95bf5351 158 params);
vcoubard 541:884f95bf5351 159 break;
vcoubard 541:884f95bf5351 160 }
vcoubard 541:884f95bf5351 161
vcoubard 541:884f95bf5351 162 case BLE_GAP_EVT_DISCONNECTED: {
vcoubard 541:884f95bf5351 163 Gap::Handle_t handle = p_ble_evt->evt.gap_evt.conn_handle;
vcoubard 541:884f95bf5351 164 // Since we are not in a connection and have not started advertising,
vcoubard 541:884f95bf5351 165 // store bonds
vcoubard 541:884f95bf5351 166 nRF5xGap::getInstance().setConnectionHandle (BLE_CONN_HANDLE_INVALID);
vcoubard 541:884f95bf5351 167
vcoubard 541:884f95bf5351 168 Gap::DisconnectionReason_t reason;
vcoubard 541:884f95bf5351 169 switch (p_ble_evt->evt.gap_evt.params.disconnected.reason) {
vcoubard 541:884f95bf5351 170 case BLE_HCI_LOCAL_HOST_TERMINATED_CONNECTION:
vcoubard 541:884f95bf5351 171 reason = Gap::LOCAL_HOST_TERMINATED_CONNECTION;
vcoubard 541:884f95bf5351 172 break;
vcoubard 541:884f95bf5351 173 case BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION:
vcoubard 541:884f95bf5351 174 reason = Gap::REMOTE_USER_TERMINATED_CONNECTION;
vcoubard 541:884f95bf5351 175 break;
vcoubard 541:884f95bf5351 176 case BLE_HCI_CONN_INTERVAL_UNACCEPTABLE:
vcoubard 541:884f95bf5351 177 reason = Gap::CONN_INTERVAL_UNACCEPTABLE;
vcoubard 541:884f95bf5351 178 break;
vcoubard 541:884f95bf5351 179 default:
vcoubard 541:884f95bf5351 180 /* Please refer to the underlying transport library for an
vcoubard 541:884f95bf5351 181 * interpretion of this reason's value. */
vcoubard 541:884f95bf5351 182 reason = static_cast<Gap::DisconnectionReason_t>(p_ble_evt->evt.gap_evt.params.disconnected.reason);
vcoubard 541:884f95bf5351 183 break;
vcoubard 541:884f95bf5351 184 }
vcoubard 541:884f95bf5351 185 nRF5xGap::getInstance().processDisconnectionEvent(handle, reason);
vcoubard 542:1bf9c597f44f 186 // TODO: close pending discoveries
vcoubard 541:884f95bf5351 187 break;
vcoubard 541:884f95bf5351 188 }
vcoubard 541:884f95bf5351 189
vcoubard 541:884f95bf5351 190 case BLE_GAP_EVT_PASSKEY_DISPLAY:
vcoubard 541:884f95bf5351 191 nRF5xSecurityManager::getInstance().processPasskeyDisplayEvent(p_ble_evt->evt.gap_evt.conn_handle, p_ble_evt->evt.gap_evt.params.passkey_display.passkey);
vcoubard 541:884f95bf5351 192 break;
vcoubard 541:884f95bf5351 193
vcoubard 541:884f95bf5351 194 case BLE_GAP_EVT_TIMEOUT:
vcoubard 541:884f95bf5351 195 nRF5xGap::getInstance().processTimeoutEvent(static_cast<Gap::TimeoutSource_t>(p_ble_evt->evt.gap_evt.params.timeout.src));
vcoubard 541:884f95bf5351 196 break;
vcoubard 541:884f95bf5351 197
vcoubard 541:884f95bf5351 198 case BLE_GATTC_EVT_TIMEOUT:
vcoubard 541:884f95bf5351 199 case BLE_GATTS_EVT_TIMEOUT:
vcoubard 541:884f95bf5351 200 // Disconnect on GATT Server and Client timeout events.
vcoubard 541:884f95bf5351 201 // ASSERT_STATUS_RET_VOID (sd_ble_gap_disconnect(m_conn_handle,
vcoubard 541:884f95bf5351 202 // BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION));
vcoubard 541:884f95bf5351 203 break;
vcoubard 541:884f95bf5351 204
vcoubard 541:884f95bf5351 205 case BLE_GAP_EVT_ADV_REPORT: {
vcoubard 541:884f95bf5351 206 const ble_gap_evt_adv_report_t *advReport = &p_ble_evt->evt.gap_evt.params.adv_report;
vcoubard 541:884f95bf5351 207 nRF5xGap::getInstance().processAdvertisementReport(advReport->peer_addr.addr,
vcoubard 541:884f95bf5351 208 advReport->rssi,
vcoubard 541:884f95bf5351 209 advReport->scan_rsp,
vcoubard 541:884f95bf5351 210 static_cast<GapAdvertisingParams::AdvertisingType_t>(advReport->type),
vcoubard 541:884f95bf5351 211 advReport->dlen,
vcoubard 541:884f95bf5351 212 advReport->data);
vcoubard 541:884f95bf5351 213 break;
vcoubard 541:884f95bf5351 214 }
vcoubard 541:884f95bf5351 215
vcoubard 541:884f95bf5351 216 default:
vcoubard 541:884f95bf5351 217 break;
vcoubard 541:884f95bf5351 218 }
vcoubard 541:884f95bf5351 219
vcoubard 541:884f95bf5351 220 nRF5xGattServer::getInstance().hwCallback(p_ble_evt);
vcoubard 541:884f95bf5351 221 }
vcoubard 541:884f95bf5351 222
vcoubard 541:884f95bf5351 223 /*! @brief Callback when an error occurs inside the SoftDevice */
vcoubard 541:884f95bf5351 224 void assert_nrf_callback(uint16_t line_num, const uint8_t *p_file_name)
vcoubard 541:884f95bf5351 225 {
vcoubard 541:884f95bf5351 226 ASSERT(false, (void) 0);
vcoubard 541:884f95bf5351 227 }
vcoubard 541:884f95bf5351 228
vcoubard 541:884f95bf5351 229 /*!
vcoubard 541:884f95bf5351 230 @brief Handler for general errors above the SoftDevice layer.
vcoubard 541:884f95bf5351 231 Typically we can' recover from this so we do a reset.
vcoubard 541:884f95bf5351 232 */
vcoubard 541:884f95bf5351 233 void app_error_handler(uint32_t error_code, uint32_t line_num, const uint8_t *p_file_name)
vcoubard 541:884f95bf5351 234 {
vcoubard 541:884f95bf5351 235 ASSERT_STATUS_RET_VOID( error_code );
vcoubard 541:884f95bf5351 236 NVIC_SystemReset();
rgrover1 77:9886b2865631 237 }