Mouse code for the MacroRat
mbed-dev/targets/TARGET_NORDIC/TARGET_NRF5/sdk/ble/ble_db_discovery/ble_db_discovery.c@46:b156ef445742, 2017-06-03 (annotated)
- Committer:
- sahilmgandhi
- Date:
- Sat Jun 03 00:22:44 2017 +0000
- Revision:
- 46:b156ef445742
- Parent:
- 18:6a4db94011d3
Final code for internal battlebot competition.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
sahilmgandhi | 18:6a4db94011d3 | 1 | /* |
sahilmgandhi | 18:6a4db94011d3 | 2 | * Copyright (c) 2013 Nordic Semiconductor ASA |
sahilmgandhi | 18:6a4db94011d3 | 3 | * All rights reserved. |
sahilmgandhi | 18:6a4db94011d3 | 4 | * |
sahilmgandhi | 18:6a4db94011d3 | 5 | * Redistribution and use in source and binary forms, with or without modification, |
sahilmgandhi | 18:6a4db94011d3 | 6 | * are permitted provided that the following conditions are met: |
sahilmgandhi | 18:6a4db94011d3 | 7 | * |
sahilmgandhi | 18:6a4db94011d3 | 8 | * 1. Redistributions of source code must retain the above copyright notice, this list |
sahilmgandhi | 18:6a4db94011d3 | 9 | * of conditions and the following disclaimer. |
sahilmgandhi | 18:6a4db94011d3 | 10 | * |
sahilmgandhi | 18:6a4db94011d3 | 11 | * 2. Redistributions in binary form, except as embedded into a Nordic Semiconductor ASA |
sahilmgandhi | 18:6a4db94011d3 | 12 | * integrated circuit in a product or a software update for such product, must reproduce |
sahilmgandhi | 18:6a4db94011d3 | 13 | * the above copyright notice, this list of conditions and the following disclaimer in |
sahilmgandhi | 18:6a4db94011d3 | 14 | * the documentation and/or other materials provided with the distribution. |
sahilmgandhi | 18:6a4db94011d3 | 15 | * |
sahilmgandhi | 18:6a4db94011d3 | 16 | * 3. Neither the name of Nordic Semiconductor ASA nor the names of its contributors may be |
sahilmgandhi | 18:6a4db94011d3 | 17 | * used to endorse or promote products derived from this software without specific prior |
sahilmgandhi | 18:6a4db94011d3 | 18 | * written permission. |
sahilmgandhi | 18:6a4db94011d3 | 19 | * |
sahilmgandhi | 18:6a4db94011d3 | 20 | * 4. This software, with or without modification, must only be used with a |
sahilmgandhi | 18:6a4db94011d3 | 21 | * Nordic Semiconductor ASA integrated circuit. |
sahilmgandhi | 18:6a4db94011d3 | 22 | * |
sahilmgandhi | 18:6a4db94011d3 | 23 | * 5. Any software provided in binary or object form under this license must not be reverse |
sahilmgandhi | 18:6a4db94011d3 | 24 | * engineered, decompiled, modified and/or disassembled. |
sahilmgandhi | 18:6a4db94011d3 | 25 | * |
sahilmgandhi | 18:6a4db94011d3 | 26 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
sahilmgandhi | 18:6a4db94011d3 | 27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
sahilmgandhi | 18:6a4db94011d3 | 28 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
sahilmgandhi | 18:6a4db94011d3 | 29 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
sahilmgandhi | 18:6a4db94011d3 | 30 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
sahilmgandhi | 18:6a4db94011d3 | 31 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
sahilmgandhi | 18:6a4db94011d3 | 32 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
sahilmgandhi | 18:6a4db94011d3 | 33 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
sahilmgandhi | 18:6a4db94011d3 | 34 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
sahilmgandhi | 18:6a4db94011d3 | 35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
sahilmgandhi | 18:6a4db94011d3 | 36 | * |
sahilmgandhi | 18:6a4db94011d3 | 37 | */ |
sahilmgandhi | 18:6a4db94011d3 | 38 | |
sahilmgandhi | 18:6a4db94011d3 | 39 | |
sahilmgandhi | 18:6a4db94011d3 | 40 | #include "ble_db_discovery.h" |
sahilmgandhi | 18:6a4db94011d3 | 41 | #include <stdlib.h> |
sahilmgandhi | 18:6a4db94011d3 | 42 | #include "nrf_ble.h" |
sahilmgandhi | 18:6a4db94011d3 | 43 | #include "nrf_log.h" |
sahilmgandhi | 18:6a4db94011d3 | 44 | |
sahilmgandhi | 18:6a4db94011d3 | 45 | #include "sdk_common.h" |
sahilmgandhi | 18:6a4db94011d3 | 46 | |
sahilmgandhi | 18:6a4db94011d3 | 47 | #define SRV_DISC_START_HANDLE 0x0001 /**< The start handle value used during service discovery. */ |
sahilmgandhi | 18:6a4db94011d3 | 48 | #define DB_DISCOVERY_MAX_USERS BLE_DB_DISCOVERY_MAX_SRV /**< The maximum number of users/registrations allowed by this module. */ |
sahilmgandhi | 18:6a4db94011d3 | 49 | #define DB_LOG NRF_LOG_PRINTF_DEBUG /**< A debug logger macro that can be used in this file to do logging information over UART. */ |
sahilmgandhi | 18:6a4db94011d3 | 50 | |
sahilmgandhi | 18:6a4db94011d3 | 51 | |
sahilmgandhi | 18:6a4db94011d3 | 52 | /**@brief Array of structures containing information about the registered application modules. */ |
sahilmgandhi | 18:6a4db94011d3 | 53 | static ble_uuid_t m_registered_handlers[DB_DISCOVERY_MAX_USERS]; |
sahilmgandhi | 18:6a4db94011d3 | 54 | |
sahilmgandhi | 18:6a4db94011d3 | 55 | |
sahilmgandhi | 18:6a4db94011d3 | 56 | /**@brief Array of structures containing pending events to be sent to the application modules. |
sahilmgandhi | 18:6a4db94011d3 | 57 | * |
sahilmgandhi | 18:6a4db94011d3 | 58 | * @details Whenever a discovery related event is to be raised to a user module, it will be stored |
sahilmgandhi | 18:6a4db94011d3 | 59 | * in this array first. When all services needed to be discovered have been |
sahilmgandhi | 18:6a4db94011d3 | 60 | * discovered, all pending events will be sent to the corresponding user modules. |
sahilmgandhi | 18:6a4db94011d3 | 61 | **/ |
sahilmgandhi | 18:6a4db94011d3 | 62 | static struct |
sahilmgandhi | 18:6a4db94011d3 | 63 | { |
sahilmgandhi | 18:6a4db94011d3 | 64 | ble_db_discovery_evt_t evt; /**< The pending event. */ |
sahilmgandhi | 18:6a4db94011d3 | 65 | ble_db_discovery_evt_handler_t evt_handler; /**< The event handler which should be called to raise this event. */ |
sahilmgandhi | 18:6a4db94011d3 | 66 | } m_pending_user_evts[DB_DISCOVERY_MAX_USERS]; |
sahilmgandhi | 18:6a4db94011d3 | 67 | |
sahilmgandhi | 18:6a4db94011d3 | 68 | static ble_db_discovery_evt_handler_t m_evt_handler; |
sahilmgandhi | 18:6a4db94011d3 | 69 | static uint32_t m_pending_usr_evt_index; /**< The index to the pending user event array, pointing to the last added pending user event. */ |
sahilmgandhi | 18:6a4db94011d3 | 70 | static uint32_t m_num_of_handlers_reg; /**< The number of handlers registered with the DB Discovery module. */ |
sahilmgandhi | 18:6a4db94011d3 | 71 | static bool m_initialized = false; /**< This variable Indicates if the module is initialized or not. */ |
sahilmgandhi | 18:6a4db94011d3 | 72 | |
sahilmgandhi | 18:6a4db94011d3 | 73 | #define MODULE_INITIALIZED (m_initialized == true) |
sahilmgandhi | 18:6a4db94011d3 | 74 | #include "sdk_macros.h" |
sahilmgandhi | 18:6a4db94011d3 | 75 | |
sahilmgandhi | 18:6a4db94011d3 | 76 | /**@brief Function for fetching the event handler provided by a registered application module. |
sahilmgandhi | 18:6a4db94011d3 | 77 | * |
sahilmgandhi | 18:6a4db94011d3 | 78 | * @param[in] srv_uuid UUID of the service. |
sahilmgandhi | 18:6a4db94011d3 | 79 | * |
sahilmgandhi | 18:6a4db94011d3 | 80 | * @retval evt_handler Event handler of the module, registered for the given service UUID. |
sahilmgandhi | 18:6a4db94011d3 | 81 | * @retval NULL If no event handler is found. |
sahilmgandhi | 18:6a4db94011d3 | 82 | */ |
sahilmgandhi | 18:6a4db94011d3 | 83 | static ble_db_discovery_evt_handler_t registered_handler_get(const ble_uuid_t * const p_srv_uuid) |
sahilmgandhi | 18:6a4db94011d3 | 84 | { |
sahilmgandhi | 18:6a4db94011d3 | 85 | uint32_t i; |
sahilmgandhi | 18:6a4db94011d3 | 86 | |
sahilmgandhi | 18:6a4db94011d3 | 87 | for (i = 0; i < m_num_of_handlers_reg; i++) |
sahilmgandhi | 18:6a4db94011d3 | 88 | { |
sahilmgandhi | 18:6a4db94011d3 | 89 | if (BLE_UUID_EQ(&(m_registered_handlers[i]), p_srv_uuid)) |
sahilmgandhi | 18:6a4db94011d3 | 90 | { |
sahilmgandhi | 18:6a4db94011d3 | 91 | return (m_evt_handler); |
sahilmgandhi | 18:6a4db94011d3 | 92 | } |
sahilmgandhi | 18:6a4db94011d3 | 93 | } |
sahilmgandhi | 18:6a4db94011d3 | 94 | |
sahilmgandhi | 18:6a4db94011d3 | 95 | return NULL; |
sahilmgandhi | 18:6a4db94011d3 | 96 | } |
sahilmgandhi | 18:6a4db94011d3 | 97 | |
sahilmgandhi | 18:6a4db94011d3 | 98 | |
sahilmgandhi | 18:6a4db94011d3 | 99 | /**@brief Function for storing the event handler provided by a registered application module. |
sahilmgandhi | 18:6a4db94011d3 | 100 | * |
sahilmgandhi | 18:6a4db94011d3 | 101 | * @param[in] p_srv_uuid The UUID of the service. |
sahilmgandhi | 18:6a4db94011d3 | 102 | * @param[in] p_evt_handler The event handler provided by the application. |
sahilmgandhi | 18:6a4db94011d3 | 103 | * |
sahilmgandhi | 18:6a4db94011d3 | 104 | * @retval NRF_SUCCESS If the handler was stored or already present in the list. |
sahilmgandhi | 18:6a4db94011d3 | 105 | * @retval NRF_ERROR_NO_MEM If there is no space left to store the handler. |
sahilmgandhi | 18:6a4db94011d3 | 106 | */ |
sahilmgandhi | 18:6a4db94011d3 | 107 | static uint32_t registered_handler_set(const ble_uuid_t * const p_srv_uuid, |
sahilmgandhi | 18:6a4db94011d3 | 108 | ble_db_discovery_evt_handler_t p_evt_handler) |
sahilmgandhi | 18:6a4db94011d3 | 109 | { |
sahilmgandhi | 18:6a4db94011d3 | 110 | if (registered_handler_get(p_srv_uuid) != NULL) |
sahilmgandhi | 18:6a4db94011d3 | 111 | { |
sahilmgandhi | 18:6a4db94011d3 | 112 | return NRF_SUCCESS; |
sahilmgandhi | 18:6a4db94011d3 | 113 | } |
sahilmgandhi | 18:6a4db94011d3 | 114 | if (m_num_of_handlers_reg < DB_DISCOVERY_MAX_USERS) |
sahilmgandhi | 18:6a4db94011d3 | 115 | { |
sahilmgandhi | 18:6a4db94011d3 | 116 | m_registered_handlers[m_num_of_handlers_reg] = *p_srv_uuid; |
sahilmgandhi | 18:6a4db94011d3 | 117 | |
sahilmgandhi | 18:6a4db94011d3 | 118 | m_num_of_handlers_reg++; |
sahilmgandhi | 18:6a4db94011d3 | 119 | |
sahilmgandhi | 18:6a4db94011d3 | 120 | return NRF_SUCCESS; |
sahilmgandhi | 18:6a4db94011d3 | 121 | } |
sahilmgandhi | 18:6a4db94011d3 | 122 | else |
sahilmgandhi | 18:6a4db94011d3 | 123 | { |
sahilmgandhi | 18:6a4db94011d3 | 124 | return NRF_ERROR_NO_MEM; |
sahilmgandhi | 18:6a4db94011d3 | 125 | } |
sahilmgandhi | 18:6a4db94011d3 | 126 | } |
sahilmgandhi | 18:6a4db94011d3 | 127 | |
sahilmgandhi | 18:6a4db94011d3 | 128 | |
sahilmgandhi | 18:6a4db94011d3 | 129 | /**@brief Function for sending all pending discovery events to the corresponding user modules. |
sahilmgandhi | 18:6a4db94011d3 | 130 | */ |
sahilmgandhi | 18:6a4db94011d3 | 131 | static void pending_user_evts_send(void) |
sahilmgandhi | 18:6a4db94011d3 | 132 | { |
sahilmgandhi | 18:6a4db94011d3 | 133 | uint32_t i = 0; |
sahilmgandhi | 18:6a4db94011d3 | 134 | |
sahilmgandhi | 18:6a4db94011d3 | 135 | for (i = 0; i < m_num_of_handlers_reg; i++) |
sahilmgandhi | 18:6a4db94011d3 | 136 | { |
sahilmgandhi | 18:6a4db94011d3 | 137 | // Pass the event to the corresponding event handler. |
sahilmgandhi | 18:6a4db94011d3 | 138 | m_pending_user_evts[i].evt_handler(&(m_pending_user_evts[i].evt)); |
sahilmgandhi | 18:6a4db94011d3 | 139 | } |
sahilmgandhi | 18:6a4db94011d3 | 140 | m_pending_usr_evt_index = 0; |
sahilmgandhi | 18:6a4db94011d3 | 141 | } |
sahilmgandhi | 18:6a4db94011d3 | 142 | |
sahilmgandhi | 18:6a4db94011d3 | 143 | |
sahilmgandhi | 18:6a4db94011d3 | 144 | /**@brief Function for indicating error to the application. |
sahilmgandhi | 18:6a4db94011d3 | 145 | * |
sahilmgandhi | 18:6a4db94011d3 | 146 | * @details This function will fetch the event handler based on the UUID of the service being |
sahilmgandhi | 18:6a4db94011d3 | 147 | * discovered. (The event handler is registered by the application beforehand). |
sahilmgandhi | 18:6a4db94011d3 | 148 | * The error code is added to the pending events together with the event handler. |
sahilmgandhi | 18:6a4db94011d3 | 149 | * If no event handler was found, then this function will do nothing. |
sahilmgandhi | 18:6a4db94011d3 | 150 | * |
sahilmgandhi | 18:6a4db94011d3 | 151 | * @param[in] p_db_discovery Pointer to the DB discovery structure. |
sahilmgandhi | 18:6a4db94011d3 | 152 | * @param[in] err_code Error code that should be provided to the application. |
sahilmgandhi | 18:6a4db94011d3 | 153 | * @param[in] conn_handle Connection Handle. |
sahilmgandhi | 18:6a4db94011d3 | 154 | * |
sahilmgandhi | 18:6a4db94011d3 | 155 | */ |
sahilmgandhi | 18:6a4db94011d3 | 156 | static void discovery_error_evt_trigger(ble_db_discovery_t * const p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 157 | uint32_t err_code, |
sahilmgandhi | 18:6a4db94011d3 | 158 | uint16_t const conn_handle) |
sahilmgandhi | 18:6a4db94011d3 | 159 | { |
sahilmgandhi | 18:6a4db94011d3 | 160 | ble_db_discovery_evt_handler_t p_evt_handler; |
sahilmgandhi | 18:6a4db94011d3 | 161 | ble_gatt_db_srv_t * p_srv_being_discovered; |
sahilmgandhi | 18:6a4db94011d3 | 162 | |
sahilmgandhi | 18:6a4db94011d3 | 163 | p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]); |
sahilmgandhi | 18:6a4db94011d3 | 164 | |
sahilmgandhi | 18:6a4db94011d3 | 165 | p_evt_handler = registered_handler_get(&(p_srv_being_discovered->srv_uuid)); |
sahilmgandhi | 18:6a4db94011d3 | 166 | |
sahilmgandhi | 18:6a4db94011d3 | 167 | if (p_evt_handler != NULL) |
sahilmgandhi | 18:6a4db94011d3 | 168 | { |
sahilmgandhi | 18:6a4db94011d3 | 169 | ble_db_discovery_evt_t evt; |
sahilmgandhi | 18:6a4db94011d3 | 170 | |
sahilmgandhi | 18:6a4db94011d3 | 171 | evt.conn_handle = conn_handle; |
sahilmgandhi | 18:6a4db94011d3 | 172 | evt.evt_type = BLE_DB_DISCOVERY_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 173 | evt.params.err_code = err_code; |
sahilmgandhi | 18:6a4db94011d3 | 174 | |
sahilmgandhi | 18:6a4db94011d3 | 175 | p_evt_handler(&evt); |
sahilmgandhi | 18:6a4db94011d3 | 176 | } |
sahilmgandhi | 18:6a4db94011d3 | 177 | } |
sahilmgandhi | 18:6a4db94011d3 | 178 | |
sahilmgandhi | 18:6a4db94011d3 | 179 | |
sahilmgandhi | 18:6a4db94011d3 | 180 | /**@brief Function for triggering a Discovery Complete or Service Not Found event to the |
sahilmgandhi | 18:6a4db94011d3 | 181 | * application. |
sahilmgandhi | 18:6a4db94011d3 | 182 | * |
sahilmgandhi | 18:6a4db94011d3 | 183 | * @details This function will fetch the event handler based on the UUID of the service being |
sahilmgandhi | 18:6a4db94011d3 | 184 | * discovered. (The event handler is registered by the application beforehand). |
sahilmgandhi | 18:6a4db94011d3 | 185 | * It then triggers an event indicating the completion of the service discovery. |
sahilmgandhi | 18:6a4db94011d3 | 186 | * If no event handler was found, then this function will do nothing. |
sahilmgandhi | 18:6a4db94011d3 | 187 | * |
sahilmgandhi | 18:6a4db94011d3 | 188 | * @param[in] p_db_discovery Pointer to the DB discovery structure. |
sahilmgandhi | 18:6a4db94011d3 | 189 | * @param[in] is_srv_found Variable to indicate if the service was found at the peer. |
sahilmgandhi | 18:6a4db94011d3 | 190 | * @param[in] conn_handle Connection Handle. |
sahilmgandhi | 18:6a4db94011d3 | 191 | */ |
sahilmgandhi | 18:6a4db94011d3 | 192 | static void discovery_complete_evt_trigger(ble_db_discovery_t * const p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 193 | bool is_srv_found, |
sahilmgandhi | 18:6a4db94011d3 | 194 | uint16_t const conn_handle) |
sahilmgandhi | 18:6a4db94011d3 | 195 | { |
sahilmgandhi | 18:6a4db94011d3 | 196 | ble_db_discovery_evt_handler_t p_evt_handler; |
sahilmgandhi | 18:6a4db94011d3 | 197 | ble_gatt_db_srv_t * p_srv_being_discovered; |
sahilmgandhi | 18:6a4db94011d3 | 198 | |
sahilmgandhi | 18:6a4db94011d3 | 199 | p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]); |
sahilmgandhi | 18:6a4db94011d3 | 200 | |
sahilmgandhi | 18:6a4db94011d3 | 201 | p_evt_handler = registered_handler_get(&(p_srv_being_discovered->srv_uuid)); |
sahilmgandhi | 18:6a4db94011d3 | 202 | |
sahilmgandhi | 18:6a4db94011d3 | 203 | if (p_evt_handler != NULL) |
sahilmgandhi | 18:6a4db94011d3 | 204 | { |
sahilmgandhi | 18:6a4db94011d3 | 205 | if (m_pending_usr_evt_index < DB_DISCOVERY_MAX_USERS) |
sahilmgandhi | 18:6a4db94011d3 | 206 | { |
sahilmgandhi | 18:6a4db94011d3 | 207 | // Insert an event into the pending event list. |
sahilmgandhi | 18:6a4db94011d3 | 208 | m_pending_user_evts[m_pending_usr_evt_index].evt.conn_handle = conn_handle; |
sahilmgandhi | 18:6a4db94011d3 | 209 | |
sahilmgandhi | 18:6a4db94011d3 | 210 | m_pending_user_evts[m_pending_usr_evt_index].evt.params.discovered_db = |
sahilmgandhi | 18:6a4db94011d3 | 211 | *p_srv_being_discovered; |
sahilmgandhi | 18:6a4db94011d3 | 212 | if (is_srv_found) |
sahilmgandhi | 18:6a4db94011d3 | 213 | { |
sahilmgandhi | 18:6a4db94011d3 | 214 | m_pending_user_evts[m_pending_usr_evt_index].evt.evt_type = |
sahilmgandhi | 18:6a4db94011d3 | 215 | BLE_DB_DISCOVERY_COMPLETE; |
sahilmgandhi | 18:6a4db94011d3 | 216 | } |
sahilmgandhi | 18:6a4db94011d3 | 217 | else |
sahilmgandhi | 18:6a4db94011d3 | 218 | { |
sahilmgandhi | 18:6a4db94011d3 | 219 | m_pending_user_evts[m_pending_usr_evt_index].evt.evt_type = |
sahilmgandhi | 18:6a4db94011d3 | 220 | BLE_DB_DISCOVERY_SRV_NOT_FOUND; |
sahilmgandhi | 18:6a4db94011d3 | 221 | } |
sahilmgandhi | 18:6a4db94011d3 | 222 | m_pending_user_evts[m_pending_usr_evt_index].evt_handler = p_evt_handler; |
sahilmgandhi | 18:6a4db94011d3 | 223 | |
sahilmgandhi | 18:6a4db94011d3 | 224 | m_pending_usr_evt_index++; |
sahilmgandhi | 18:6a4db94011d3 | 225 | |
sahilmgandhi | 18:6a4db94011d3 | 226 | if (m_pending_usr_evt_index == m_num_of_handlers_reg) |
sahilmgandhi | 18:6a4db94011d3 | 227 | { |
sahilmgandhi | 18:6a4db94011d3 | 228 | // All registered modules have pending events. Send all pending events to the user |
sahilmgandhi | 18:6a4db94011d3 | 229 | // modules. |
sahilmgandhi | 18:6a4db94011d3 | 230 | pending_user_evts_send(); |
sahilmgandhi | 18:6a4db94011d3 | 231 | } |
sahilmgandhi | 18:6a4db94011d3 | 232 | else |
sahilmgandhi | 18:6a4db94011d3 | 233 | { |
sahilmgandhi | 18:6a4db94011d3 | 234 | // Too many events pending. Do nothing. (Ideally this should not happen.) |
sahilmgandhi | 18:6a4db94011d3 | 235 | } |
sahilmgandhi | 18:6a4db94011d3 | 236 | } |
sahilmgandhi | 18:6a4db94011d3 | 237 | } |
sahilmgandhi | 18:6a4db94011d3 | 238 | } |
sahilmgandhi | 18:6a4db94011d3 | 239 | |
sahilmgandhi | 18:6a4db94011d3 | 240 | |
sahilmgandhi | 18:6a4db94011d3 | 241 | /**@brief Function for handling service discovery completion. |
sahilmgandhi | 18:6a4db94011d3 | 242 | * |
sahilmgandhi | 18:6a4db94011d3 | 243 | * @details This function will be used to determine if there are more services to be discovered, |
sahilmgandhi | 18:6a4db94011d3 | 244 | * and if so, initiate the discovery of the next service. |
sahilmgandhi | 18:6a4db94011d3 | 245 | * |
sahilmgandhi | 18:6a4db94011d3 | 246 | * @param[in] p_db_discovery Pointer to the DB Discovery Structure. |
sahilmgandhi | 18:6a4db94011d3 | 247 | * @param[in] conn_handle Connection Handle. |
sahilmgandhi | 18:6a4db94011d3 | 248 | */ |
sahilmgandhi | 18:6a4db94011d3 | 249 | static void on_srv_disc_completion(ble_db_discovery_t * p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 250 | uint16_t const conn_handle) |
sahilmgandhi | 18:6a4db94011d3 | 251 | { |
sahilmgandhi | 18:6a4db94011d3 | 252 | p_db_discovery->discoveries_count++; |
sahilmgandhi | 18:6a4db94011d3 | 253 | |
sahilmgandhi | 18:6a4db94011d3 | 254 | // Check if more services need to be discovered. |
sahilmgandhi | 18:6a4db94011d3 | 255 | if (p_db_discovery->discoveries_count < m_num_of_handlers_reg) |
sahilmgandhi | 18:6a4db94011d3 | 256 | { |
sahilmgandhi | 18:6a4db94011d3 | 257 | // Reset the current characteristic index since a new service discovery is about to start. |
sahilmgandhi | 18:6a4db94011d3 | 258 | p_db_discovery->curr_char_ind = 0; |
sahilmgandhi | 18:6a4db94011d3 | 259 | |
sahilmgandhi | 18:6a4db94011d3 | 260 | // Initiate discovery of the next service. |
sahilmgandhi | 18:6a4db94011d3 | 261 | p_db_discovery->curr_srv_ind++; |
sahilmgandhi | 18:6a4db94011d3 | 262 | |
sahilmgandhi | 18:6a4db94011d3 | 263 | ble_gatt_db_srv_t * p_srv_being_discovered; |
sahilmgandhi | 18:6a4db94011d3 | 264 | |
sahilmgandhi | 18:6a4db94011d3 | 265 | p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]); |
sahilmgandhi | 18:6a4db94011d3 | 266 | |
sahilmgandhi | 18:6a4db94011d3 | 267 | p_srv_being_discovered->srv_uuid = m_registered_handlers[p_db_discovery->curr_srv_ind]; |
sahilmgandhi | 18:6a4db94011d3 | 268 | |
sahilmgandhi | 18:6a4db94011d3 | 269 | // Reset the characteristic count in the current service to zero since a new service |
sahilmgandhi | 18:6a4db94011d3 | 270 | // discovery is about to start. |
sahilmgandhi | 18:6a4db94011d3 | 271 | p_srv_being_discovered->char_count = 0; |
sahilmgandhi | 18:6a4db94011d3 | 272 | |
sahilmgandhi | 18:6a4db94011d3 | 273 | DB_LOG("[DB]: Starting discovery of service with UUID 0x%x for Connection handle %d\r\n", |
sahilmgandhi | 18:6a4db94011d3 | 274 | p_srv_being_discovered->srv_uuid.uuid, conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 275 | |
sahilmgandhi | 18:6a4db94011d3 | 276 | uint32_t err_code; |
sahilmgandhi | 18:6a4db94011d3 | 277 | |
sahilmgandhi | 18:6a4db94011d3 | 278 | err_code = sd_ble_gattc_primary_services_discover |
sahilmgandhi | 18:6a4db94011d3 | 279 | ( |
sahilmgandhi | 18:6a4db94011d3 | 280 | conn_handle, |
sahilmgandhi | 18:6a4db94011d3 | 281 | SRV_DISC_START_HANDLE, |
sahilmgandhi | 18:6a4db94011d3 | 282 | &(p_srv_being_discovered->srv_uuid) |
sahilmgandhi | 18:6a4db94011d3 | 283 | ); |
sahilmgandhi | 18:6a4db94011d3 | 284 | if (err_code != NRF_SUCCESS) |
sahilmgandhi | 18:6a4db94011d3 | 285 | { |
sahilmgandhi | 18:6a4db94011d3 | 286 | p_db_discovery->discovery_in_progress = false; |
sahilmgandhi | 18:6a4db94011d3 | 287 | |
sahilmgandhi | 18:6a4db94011d3 | 288 | // Error with discovering the service. |
sahilmgandhi | 18:6a4db94011d3 | 289 | // Indicate the error to the registered user application. |
sahilmgandhi | 18:6a4db94011d3 | 290 | discovery_error_evt_trigger(p_db_discovery, err_code, conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 291 | |
sahilmgandhi | 18:6a4db94011d3 | 292 | m_pending_user_evts[0].evt.evt_type = BLE_DB_DISCOVERY_AVAILABLE; |
sahilmgandhi | 18:6a4db94011d3 | 293 | m_pending_user_evts[0].evt.conn_handle = conn_handle; |
sahilmgandhi | 18:6a4db94011d3 | 294 | // m_evt_handler(&m_pending_user_evts[0].evt); |
sahilmgandhi | 18:6a4db94011d3 | 295 | |
sahilmgandhi | 18:6a4db94011d3 | 296 | return; |
sahilmgandhi | 18:6a4db94011d3 | 297 | } |
sahilmgandhi | 18:6a4db94011d3 | 298 | } |
sahilmgandhi | 18:6a4db94011d3 | 299 | else |
sahilmgandhi | 18:6a4db94011d3 | 300 | { |
sahilmgandhi | 18:6a4db94011d3 | 301 | // No more service discovery is needed. |
sahilmgandhi | 18:6a4db94011d3 | 302 | p_db_discovery->discovery_in_progress = false; |
sahilmgandhi | 18:6a4db94011d3 | 303 | m_pending_user_evts[0].evt.evt_type = BLE_DB_DISCOVERY_AVAILABLE; |
sahilmgandhi | 18:6a4db94011d3 | 304 | m_pending_user_evts[0].evt.conn_handle = conn_handle; |
sahilmgandhi | 18:6a4db94011d3 | 305 | //m_evt_handler(&m_pending_user_evts[0].evt); |
sahilmgandhi | 18:6a4db94011d3 | 306 | } |
sahilmgandhi | 18:6a4db94011d3 | 307 | } |
sahilmgandhi | 18:6a4db94011d3 | 308 | |
sahilmgandhi | 18:6a4db94011d3 | 309 | |
sahilmgandhi | 18:6a4db94011d3 | 310 | /**@brief Function for finding out if a characteristic discovery should be performed after the |
sahilmgandhi | 18:6a4db94011d3 | 311 | * last discovered characteristic. |
sahilmgandhi | 18:6a4db94011d3 | 312 | * |
sahilmgandhi | 18:6a4db94011d3 | 313 | * @details This function is used during the time of database discovery to find out if there is |
sahilmgandhi | 18:6a4db94011d3 | 314 | * a need to do more characteristic discoveries. The value handles of the |
sahilmgandhi | 18:6a4db94011d3 | 315 | * last discovered characteristic is compared with the end handle of the service. |
sahilmgandhi | 18:6a4db94011d3 | 316 | * If the service handle is greater than one of the former characteristic handles, |
sahilmgandhi | 18:6a4db94011d3 | 317 | * it means that a characteristic discovery is required. |
sahilmgandhi | 18:6a4db94011d3 | 318 | * |
sahilmgandhi | 18:6a4db94011d3 | 319 | * @param[in] p_db_discovery The pointer to the DB Discovery structure. |
sahilmgandhi | 18:6a4db94011d3 | 320 | * @param[in] p_after_char The pointer to the last discovered characteristic. |
sahilmgandhi | 18:6a4db94011d3 | 321 | * |
sahilmgandhi | 18:6a4db94011d3 | 322 | * @retval True if a characteristic discovery is required. |
sahilmgandhi | 18:6a4db94011d3 | 323 | * @retval False if a characteristic discovery is NOT required. |
sahilmgandhi | 18:6a4db94011d3 | 324 | */ |
sahilmgandhi | 18:6a4db94011d3 | 325 | static bool is_char_discovery_reqd(ble_db_discovery_t * const p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 326 | ble_gattc_char_t * p_after_char) |
sahilmgandhi | 18:6a4db94011d3 | 327 | { |
sahilmgandhi | 18:6a4db94011d3 | 328 | if ( |
sahilmgandhi | 18:6a4db94011d3 | 329 | p_after_char->handle_value < |
sahilmgandhi | 18:6a4db94011d3 | 330 | p_db_discovery->services[p_db_discovery->curr_srv_ind].handle_range.end_handle |
sahilmgandhi | 18:6a4db94011d3 | 331 | ) |
sahilmgandhi | 18:6a4db94011d3 | 332 | { |
sahilmgandhi | 18:6a4db94011d3 | 333 | // Handle value of the characteristic being discovered is less than the end handle of |
sahilmgandhi | 18:6a4db94011d3 | 334 | // the service being discovered. There is a possibility of more characteristics being |
sahilmgandhi | 18:6a4db94011d3 | 335 | // present. Hence a characteristic discovery is required. |
sahilmgandhi | 18:6a4db94011d3 | 336 | return true; |
sahilmgandhi | 18:6a4db94011d3 | 337 | } |
sahilmgandhi | 18:6a4db94011d3 | 338 | |
sahilmgandhi | 18:6a4db94011d3 | 339 | return false; |
sahilmgandhi | 18:6a4db94011d3 | 340 | } |
sahilmgandhi | 18:6a4db94011d3 | 341 | |
sahilmgandhi | 18:6a4db94011d3 | 342 | |
sahilmgandhi | 18:6a4db94011d3 | 343 | /**@brief Function to find out if a descriptor discovery is required. |
sahilmgandhi | 18:6a4db94011d3 | 344 | * |
sahilmgandhi | 18:6a4db94011d3 | 345 | * @details This function finds out if there is a possibility of existence of descriptors between |
sahilmgandhi | 18:6a4db94011d3 | 346 | * current characteristic and the next characteristic. If so, this function will compute |
sahilmgandhi | 18:6a4db94011d3 | 347 | * the handle range on which the descriptors may be present and will return it. |
sahilmgandhi | 18:6a4db94011d3 | 348 | * If the current characteristic is the last known characteristic, then this function |
sahilmgandhi | 18:6a4db94011d3 | 349 | * will use the service end handle to find out if the current characteristic can have |
sahilmgandhi | 18:6a4db94011d3 | 350 | * descriptors. |
sahilmgandhi | 18:6a4db94011d3 | 351 | * |
sahilmgandhi | 18:6a4db94011d3 | 352 | * @param[in] p_db_discovery Pointer to the DB Discovery structure. |
sahilmgandhi | 18:6a4db94011d3 | 353 | * @param[in] p_curr_char Pointer to the current characteristic. |
sahilmgandhi | 18:6a4db94011d3 | 354 | * @param[in] p_next_char Pointer to the next characteristic. This should be NULL if the |
sahilmgandhi | 18:6a4db94011d3 | 355 | * caller knows that there is no characteristic after the current |
sahilmgandhi | 18:6a4db94011d3 | 356 | * characteristic at the peer. |
sahilmgandhi | 18:6a4db94011d3 | 357 | * @param[out] p_handle_range Pointer to the handle range in which descriptors may exist at the |
sahilmgandhi | 18:6a4db94011d3 | 358 | * the peer. |
sahilmgandhi | 18:6a4db94011d3 | 359 | * |
sahilmgandhi | 18:6a4db94011d3 | 360 | * @retval True If a descriptor discovery is required. |
sahilmgandhi | 18:6a4db94011d3 | 361 | * @retval False If a descriptor discovery is NOT required. |
sahilmgandhi | 18:6a4db94011d3 | 362 | */ |
sahilmgandhi | 18:6a4db94011d3 | 363 | static bool is_desc_discovery_reqd(ble_db_discovery_t * p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 364 | ble_gatt_db_char_t * p_curr_char, |
sahilmgandhi | 18:6a4db94011d3 | 365 | ble_gatt_db_char_t * p_next_char, |
sahilmgandhi | 18:6a4db94011d3 | 366 | ble_gattc_handle_range_t * p_handle_range) |
sahilmgandhi | 18:6a4db94011d3 | 367 | { |
sahilmgandhi | 18:6a4db94011d3 | 368 | if (p_next_char == NULL) |
sahilmgandhi | 18:6a4db94011d3 | 369 | { |
sahilmgandhi | 18:6a4db94011d3 | 370 | // Current characteristic is the last characteristic in the service. Check if the value |
sahilmgandhi | 18:6a4db94011d3 | 371 | // handle of the current characteristic is equal to the service end handle. |
sahilmgandhi | 18:6a4db94011d3 | 372 | if ( |
sahilmgandhi | 18:6a4db94011d3 | 373 | p_curr_char->characteristic.handle_value == |
sahilmgandhi | 18:6a4db94011d3 | 374 | p_db_discovery->services[p_db_discovery->curr_srv_ind].handle_range.end_handle |
sahilmgandhi | 18:6a4db94011d3 | 375 | ) |
sahilmgandhi | 18:6a4db94011d3 | 376 | { |
sahilmgandhi | 18:6a4db94011d3 | 377 | // No descriptors can be present for the current characteristic. p_curr_char is the last |
sahilmgandhi | 18:6a4db94011d3 | 378 | // characteristic with no descriptors. |
sahilmgandhi | 18:6a4db94011d3 | 379 | return false; |
sahilmgandhi | 18:6a4db94011d3 | 380 | } |
sahilmgandhi | 18:6a4db94011d3 | 381 | |
sahilmgandhi | 18:6a4db94011d3 | 382 | p_handle_range->start_handle = p_curr_char->characteristic.handle_value + 1; |
sahilmgandhi | 18:6a4db94011d3 | 383 | |
sahilmgandhi | 18:6a4db94011d3 | 384 | // Since the current characteristic is the last characteristic in the service, the end |
sahilmgandhi | 18:6a4db94011d3 | 385 | // handle should be the end handle of the service. |
sahilmgandhi | 18:6a4db94011d3 | 386 | p_handle_range->end_handle = |
sahilmgandhi | 18:6a4db94011d3 | 387 | p_db_discovery->services[p_db_discovery->curr_srv_ind].handle_range.end_handle; |
sahilmgandhi | 18:6a4db94011d3 | 388 | |
sahilmgandhi | 18:6a4db94011d3 | 389 | return true; |
sahilmgandhi | 18:6a4db94011d3 | 390 | } |
sahilmgandhi | 18:6a4db94011d3 | 391 | |
sahilmgandhi | 18:6a4db94011d3 | 392 | // p_next_char != NULL. Check for existence of descriptors between the current and the next |
sahilmgandhi | 18:6a4db94011d3 | 393 | // characteristic. |
sahilmgandhi | 18:6a4db94011d3 | 394 | if ((p_curr_char->characteristic.handle_value + 1) == p_next_char->characteristic.handle_decl) |
sahilmgandhi | 18:6a4db94011d3 | 395 | { |
sahilmgandhi | 18:6a4db94011d3 | 396 | // No descriptors can exist between the two characteristic. |
sahilmgandhi | 18:6a4db94011d3 | 397 | return false; |
sahilmgandhi | 18:6a4db94011d3 | 398 | } |
sahilmgandhi | 18:6a4db94011d3 | 399 | |
sahilmgandhi | 18:6a4db94011d3 | 400 | p_handle_range->start_handle = p_curr_char->characteristic.handle_value + 1; |
sahilmgandhi | 18:6a4db94011d3 | 401 | p_handle_range->end_handle = p_next_char->characteristic.handle_decl - 1; |
sahilmgandhi | 18:6a4db94011d3 | 402 | |
sahilmgandhi | 18:6a4db94011d3 | 403 | return true; |
sahilmgandhi | 18:6a4db94011d3 | 404 | } |
sahilmgandhi | 18:6a4db94011d3 | 405 | |
sahilmgandhi | 18:6a4db94011d3 | 406 | |
sahilmgandhi | 18:6a4db94011d3 | 407 | /**@brief Function for performing characteristic discovery. |
sahilmgandhi | 18:6a4db94011d3 | 408 | * |
sahilmgandhi | 18:6a4db94011d3 | 409 | * @param[in] p_db_discovery Pointer to the DB Discovery structure. |
sahilmgandhi | 18:6a4db94011d3 | 410 | * @param[in] conn_handle Connection Handle. |
sahilmgandhi | 18:6a4db94011d3 | 411 | * |
sahilmgandhi | 18:6a4db94011d3 | 412 | * @return NRF_SUCCESS if the SoftDevice was successfully requested to perform the characteristic |
sahilmgandhi | 18:6a4db94011d3 | 413 | * discovery. Otherwise an error code. This function returns the error code returned |
sahilmgandhi | 18:6a4db94011d3 | 414 | * by the SoftDevice API @ref sd_ble_gattc_characteristics_discover. |
sahilmgandhi | 18:6a4db94011d3 | 415 | */ |
sahilmgandhi | 18:6a4db94011d3 | 416 | static uint32_t characteristics_discover(ble_db_discovery_t * const p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 417 | uint16_t const conn_handle) |
sahilmgandhi | 18:6a4db94011d3 | 418 | { |
sahilmgandhi | 18:6a4db94011d3 | 419 | ble_gatt_db_srv_t * p_srv_being_discovered; |
sahilmgandhi | 18:6a4db94011d3 | 420 | ble_gattc_handle_range_t handle_range; |
sahilmgandhi | 18:6a4db94011d3 | 421 | |
sahilmgandhi | 18:6a4db94011d3 | 422 | p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]); |
sahilmgandhi | 18:6a4db94011d3 | 423 | |
sahilmgandhi | 18:6a4db94011d3 | 424 | if (p_db_discovery->curr_char_ind != 0) |
sahilmgandhi | 18:6a4db94011d3 | 425 | { |
sahilmgandhi | 18:6a4db94011d3 | 426 | // This is not the first characteristic being discovered. Hence the 'start handle' to be |
sahilmgandhi | 18:6a4db94011d3 | 427 | // used must be computed using the handle_value of the previous characteristic. |
sahilmgandhi | 18:6a4db94011d3 | 428 | ble_gattc_char_t * p_prev_char; |
sahilmgandhi | 18:6a4db94011d3 | 429 | uint8_t prev_char_ind = p_db_discovery->curr_char_ind - 1; |
sahilmgandhi | 18:6a4db94011d3 | 430 | |
sahilmgandhi | 18:6a4db94011d3 | 431 | p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]); |
sahilmgandhi | 18:6a4db94011d3 | 432 | |
sahilmgandhi | 18:6a4db94011d3 | 433 | p_prev_char = &(p_srv_being_discovered->charateristics[prev_char_ind].characteristic); |
sahilmgandhi | 18:6a4db94011d3 | 434 | |
sahilmgandhi | 18:6a4db94011d3 | 435 | handle_range.start_handle = p_prev_char->handle_value + 1; |
sahilmgandhi | 18:6a4db94011d3 | 436 | } |
sahilmgandhi | 18:6a4db94011d3 | 437 | else |
sahilmgandhi | 18:6a4db94011d3 | 438 | { |
sahilmgandhi | 18:6a4db94011d3 | 439 | // This is the first characteristic of this service being discovered. |
sahilmgandhi | 18:6a4db94011d3 | 440 | handle_range.start_handle = p_srv_being_discovered->handle_range.start_handle; |
sahilmgandhi | 18:6a4db94011d3 | 441 | } |
sahilmgandhi | 18:6a4db94011d3 | 442 | |
sahilmgandhi | 18:6a4db94011d3 | 443 | handle_range.end_handle = p_srv_being_discovered->handle_range.end_handle; |
sahilmgandhi | 18:6a4db94011d3 | 444 | |
sahilmgandhi | 18:6a4db94011d3 | 445 | return sd_ble_gattc_characteristics_discover(conn_handle, &handle_range); |
sahilmgandhi | 18:6a4db94011d3 | 446 | } |
sahilmgandhi | 18:6a4db94011d3 | 447 | |
sahilmgandhi | 18:6a4db94011d3 | 448 | |
sahilmgandhi | 18:6a4db94011d3 | 449 | /**@brief Function for performing descriptor discovery, if required. |
sahilmgandhi | 18:6a4db94011d3 | 450 | * |
sahilmgandhi | 18:6a4db94011d3 | 451 | * @details This function will check if descriptor discovery is required and then perform it if |
sahilmgandhi | 18:6a4db94011d3 | 452 | * needed. If no more descriptor discovery is required for the service, then the output |
sahilmgandhi | 18:6a4db94011d3 | 453 | * parameter p_raise_discov_complete is set to true, indicating to the caller that a |
sahilmgandhi | 18:6a4db94011d3 | 454 | * discovery complete event can be triggered to the application. |
sahilmgandhi | 18:6a4db94011d3 | 455 | * |
sahilmgandhi | 18:6a4db94011d3 | 456 | * @param[in] p_db_discovery Pointer to the DB Discovery structure. |
sahilmgandhi | 18:6a4db94011d3 | 457 | * @param[out] p_raise_discov_complete The value pointed to by this pointer will be set to true if |
sahilmgandhi | 18:6a4db94011d3 | 458 | * the Discovery Complete event can be triggered to the |
sahilmgandhi | 18:6a4db94011d3 | 459 | * application. |
sahilmgandhi | 18:6a4db94011d3 | 460 | * @param[in] conn_handle Connection Handle. |
sahilmgandhi | 18:6a4db94011d3 | 461 | * |
sahilmgandhi | 18:6a4db94011d3 | 462 | * @return NRF_SUCCESS if the SoftDevice was successfully requested to perform the descriptor |
sahilmgandhi | 18:6a4db94011d3 | 463 | * discovery, or if no more descriptor discovery is required. Otherwise an error code. |
sahilmgandhi | 18:6a4db94011d3 | 464 | * This function returns the error code returned by the SoftDevice API @ref |
sahilmgandhi | 18:6a4db94011d3 | 465 | * sd_ble_gattc_descriptors_discover. |
sahilmgandhi | 18:6a4db94011d3 | 466 | */ |
sahilmgandhi | 18:6a4db94011d3 | 467 | static uint32_t descriptors_discover(ble_db_discovery_t * const p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 468 | bool * p_raise_discov_complete, |
sahilmgandhi | 18:6a4db94011d3 | 469 | uint16_t const conn_handle) |
sahilmgandhi | 18:6a4db94011d3 | 470 | { |
sahilmgandhi | 18:6a4db94011d3 | 471 | ble_gattc_handle_range_t handle_range; |
sahilmgandhi | 18:6a4db94011d3 | 472 | ble_gatt_db_char_t * p_curr_char_being_discovered; |
sahilmgandhi | 18:6a4db94011d3 | 473 | ble_gatt_db_srv_t * p_srv_being_discovered; |
sahilmgandhi | 18:6a4db94011d3 | 474 | bool is_discovery_reqd = false; |
sahilmgandhi | 18:6a4db94011d3 | 475 | |
sahilmgandhi | 18:6a4db94011d3 | 476 | p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]); |
sahilmgandhi | 18:6a4db94011d3 | 477 | |
sahilmgandhi | 18:6a4db94011d3 | 478 | p_curr_char_being_discovered = |
sahilmgandhi | 18:6a4db94011d3 | 479 | &(p_srv_being_discovered->charateristics[p_db_discovery->curr_char_ind]); |
sahilmgandhi | 18:6a4db94011d3 | 480 | |
sahilmgandhi | 18:6a4db94011d3 | 481 | if ((p_db_discovery->curr_char_ind + 1) == p_srv_being_discovered->char_count) |
sahilmgandhi | 18:6a4db94011d3 | 482 | { |
sahilmgandhi | 18:6a4db94011d3 | 483 | // This is the last characteristic of this service. |
sahilmgandhi | 18:6a4db94011d3 | 484 | is_discovery_reqd = is_desc_discovery_reqd(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 485 | p_curr_char_being_discovered, |
sahilmgandhi | 18:6a4db94011d3 | 486 | NULL, |
sahilmgandhi | 18:6a4db94011d3 | 487 | &handle_range); |
sahilmgandhi | 18:6a4db94011d3 | 488 | } |
sahilmgandhi | 18:6a4db94011d3 | 489 | else |
sahilmgandhi | 18:6a4db94011d3 | 490 | { |
sahilmgandhi | 18:6a4db94011d3 | 491 | uint8_t i; |
sahilmgandhi | 18:6a4db94011d3 | 492 | ble_gatt_db_char_t * p_next_char; |
sahilmgandhi | 18:6a4db94011d3 | 493 | |
sahilmgandhi | 18:6a4db94011d3 | 494 | for (i = p_db_discovery->curr_char_ind; |
sahilmgandhi | 18:6a4db94011d3 | 495 | i < p_srv_being_discovered->char_count; |
sahilmgandhi | 18:6a4db94011d3 | 496 | i++) |
sahilmgandhi | 18:6a4db94011d3 | 497 | { |
sahilmgandhi | 18:6a4db94011d3 | 498 | |
sahilmgandhi | 18:6a4db94011d3 | 499 | if (i == (p_srv_being_discovered->char_count - 1)) |
sahilmgandhi | 18:6a4db94011d3 | 500 | { |
sahilmgandhi | 18:6a4db94011d3 | 501 | // The current characteristic is the last characteristic in the service. |
sahilmgandhi | 18:6a4db94011d3 | 502 | p_next_char = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 503 | } |
sahilmgandhi | 18:6a4db94011d3 | 504 | else |
sahilmgandhi | 18:6a4db94011d3 | 505 | { |
sahilmgandhi | 18:6a4db94011d3 | 506 | p_next_char = &(p_srv_being_discovered->charateristics[i + 1]); |
sahilmgandhi | 18:6a4db94011d3 | 507 | } |
sahilmgandhi | 18:6a4db94011d3 | 508 | |
sahilmgandhi | 18:6a4db94011d3 | 509 | // Check if it is possible for the current characteristic to have a descriptor. |
sahilmgandhi | 18:6a4db94011d3 | 510 | if (is_desc_discovery_reqd(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 511 | p_curr_char_being_discovered, |
sahilmgandhi | 18:6a4db94011d3 | 512 | p_next_char, |
sahilmgandhi | 18:6a4db94011d3 | 513 | &handle_range)) |
sahilmgandhi | 18:6a4db94011d3 | 514 | { |
sahilmgandhi | 18:6a4db94011d3 | 515 | is_discovery_reqd = true; |
sahilmgandhi | 18:6a4db94011d3 | 516 | break; |
sahilmgandhi | 18:6a4db94011d3 | 517 | } |
sahilmgandhi | 18:6a4db94011d3 | 518 | else |
sahilmgandhi | 18:6a4db94011d3 | 519 | { |
sahilmgandhi | 18:6a4db94011d3 | 520 | // No descriptors can exist. |
sahilmgandhi | 18:6a4db94011d3 | 521 | p_curr_char_being_discovered = p_next_char; |
sahilmgandhi | 18:6a4db94011d3 | 522 | p_db_discovery->curr_char_ind++; |
sahilmgandhi | 18:6a4db94011d3 | 523 | } |
sahilmgandhi | 18:6a4db94011d3 | 524 | } |
sahilmgandhi | 18:6a4db94011d3 | 525 | } |
sahilmgandhi | 18:6a4db94011d3 | 526 | |
sahilmgandhi | 18:6a4db94011d3 | 527 | if (!is_discovery_reqd) |
sahilmgandhi | 18:6a4db94011d3 | 528 | { |
sahilmgandhi | 18:6a4db94011d3 | 529 | // No more descriptor discovery required. Discovery is complete. |
sahilmgandhi | 18:6a4db94011d3 | 530 | // This informs the caller that a discovery complete event can be triggered. |
sahilmgandhi | 18:6a4db94011d3 | 531 | *p_raise_discov_complete = true; |
sahilmgandhi | 18:6a4db94011d3 | 532 | |
sahilmgandhi | 18:6a4db94011d3 | 533 | return NRF_SUCCESS; |
sahilmgandhi | 18:6a4db94011d3 | 534 | } |
sahilmgandhi | 18:6a4db94011d3 | 535 | |
sahilmgandhi | 18:6a4db94011d3 | 536 | *p_raise_discov_complete = false; |
sahilmgandhi | 18:6a4db94011d3 | 537 | |
sahilmgandhi | 18:6a4db94011d3 | 538 | return sd_ble_gattc_descriptors_discover(conn_handle, &handle_range); |
sahilmgandhi | 18:6a4db94011d3 | 539 | } |
sahilmgandhi | 18:6a4db94011d3 | 540 | |
sahilmgandhi | 18:6a4db94011d3 | 541 | |
sahilmgandhi | 18:6a4db94011d3 | 542 | /**@brief Function for handling primary service discovery response. |
sahilmgandhi | 18:6a4db94011d3 | 543 | * |
sahilmgandhi | 18:6a4db94011d3 | 544 | * @details This function will handle the primary service discovery response and start the |
sahilmgandhi | 18:6a4db94011d3 | 545 | * discovery of characteristics within that service. |
sahilmgandhi | 18:6a4db94011d3 | 546 | * |
sahilmgandhi | 18:6a4db94011d3 | 547 | * @param[in] p_db_discovery Pointer to the DB Discovery structure. |
sahilmgandhi | 18:6a4db94011d3 | 548 | * @param[in] p_ble_gattc_evt Pointer to the GATT Client event. |
sahilmgandhi | 18:6a4db94011d3 | 549 | */ |
sahilmgandhi | 18:6a4db94011d3 | 550 | static void on_primary_srv_discovery_rsp(ble_db_discovery_t * const p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 551 | const ble_gattc_evt_t * const p_ble_gattc_evt) |
sahilmgandhi | 18:6a4db94011d3 | 552 | { |
sahilmgandhi | 18:6a4db94011d3 | 553 | ble_gatt_db_srv_t * p_srv_being_discovered; |
sahilmgandhi | 18:6a4db94011d3 | 554 | p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]); |
sahilmgandhi | 18:6a4db94011d3 | 555 | |
sahilmgandhi | 18:6a4db94011d3 | 556 | if (p_ble_gattc_evt->conn_handle != p_db_discovery->conn_handle) |
sahilmgandhi | 18:6a4db94011d3 | 557 | { |
sahilmgandhi | 18:6a4db94011d3 | 558 | return; |
sahilmgandhi | 18:6a4db94011d3 | 559 | } |
sahilmgandhi | 18:6a4db94011d3 | 560 | if (p_ble_gattc_evt->gatt_status == BLE_GATT_STATUS_SUCCESS) |
sahilmgandhi | 18:6a4db94011d3 | 561 | { |
sahilmgandhi | 18:6a4db94011d3 | 562 | uint32_t err_code; |
sahilmgandhi | 18:6a4db94011d3 | 563 | const ble_gattc_evt_prim_srvc_disc_rsp_t * p_prim_srvc_disc_rsp_evt; |
sahilmgandhi | 18:6a4db94011d3 | 564 | |
sahilmgandhi | 18:6a4db94011d3 | 565 | DB_LOG("Found service UUID 0x%x\r\n", p_srv_being_discovered->srv_uuid.uuid); |
sahilmgandhi | 18:6a4db94011d3 | 566 | |
sahilmgandhi | 18:6a4db94011d3 | 567 | p_prim_srvc_disc_rsp_evt = &(p_ble_gattc_evt->params.prim_srvc_disc_rsp); |
sahilmgandhi | 18:6a4db94011d3 | 568 | |
sahilmgandhi | 18:6a4db94011d3 | 569 | p_srv_being_discovered->srv_uuid = p_prim_srvc_disc_rsp_evt->services[0].uuid; |
sahilmgandhi | 18:6a4db94011d3 | 570 | p_srv_being_discovered->handle_range = p_prim_srvc_disc_rsp_evt->services[0].handle_range; |
sahilmgandhi | 18:6a4db94011d3 | 571 | |
sahilmgandhi | 18:6a4db94011d3 | 572 | err_code = characteristics_discover(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 573 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 574 | |
sahilmgandhi | 18:6a4db94011d3 | 575 | if (err_code != NRF_SUCCESS) |
sahilmgandhi | 18:6a4db94011d3 | 576 | { |
sahilmgandhi | 18:6a4db94011d3 | 577 | p_db_discovery->discovery_in_progress = false; |
sahilmgandhi | 18:6a4db94011d3 | 578 | |
sahilmgandhi | 18:6a4db94011d3 | 579 | // Error with discovering the service. |
sahilmgandhi | 18:6a4db94011d3 | 580 | // Indicate the error to the registered user application. |
sahilmgandhi | 18:6a4db94011d3 | 581 | discovery_error_evt_trigger(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 582 | err_code, |
sahilmgandhi | 18:6a4db94011d3 | 583 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 584 | |
sahilmgandhi | 18:6a4db94011d3 | 585 | m_pending_user_evts[0].evt.evt_type = BLE_DB_DISCOVERY_AVAILABLE; |
sahilmgandhi | 18:6a4db94011d3 | 586 | m_pending_user_evts[0].evt.conn_handle = p_ble_gattc_evt->conn_handle; |
sahilmgandhi | 18:6a4db94011d3 | 587 | //m_evt_handler(&m_pending_user_evts[0].evt); |
sahilmgandhi | 18:6a4db94011d3 | 588 | } |
sahilmgandhi | 18:6a4db94011d3 | 589 | } |
sahilmgandhi | 18:6a4db94011d3 | 590 | else |
sahilmgandhi | 18:6a4db94011d3 | 591 | { |
sahilmgandhi | 18:6a4db94011d3 | 592 | DB_LOG("Service UUID 0x%x Not found\r\n", p_srv_being_discovered->srv_uuid.uuid); |
sahilmgandhi | 18:6a4db94011d3 | 593 | // Trigger Service Not Found event to the application. |
sahilmgandhi | 18:6a4db94011d3 | 594 | discovery_complete_evt_trigger(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 595 | false, |
sahilmgandhi | 18:6a4db94011d3 | 596 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 597 | |
sahilmgandhi | 18:6a4db94011d3 | 598 | on_srv_disc_completion(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 599 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 600 | } |
sahilmgandhi | 18:6a4db94011d3 | 601 | } |
sahilmgandhi | 18:6a4db94011d3 | 602 | |
sahilmgandhi | 18:6a4db94011d3 | 603 | |
sahilmgandhi | 18:6a4db94011d3 | 604 | /**@brief Function for handling characteristic discovery response. |
sahilmgandhi | 18:6a4db94011d3 | 605 | * |
sahilmgandhi | 18:6a4db94011d3 | 606 | * @param[in] p_db_discovery Pointer to the DB Discovery structure. |
sahilmgandhi | 18:6a4db94011d3 | 607 | * @param[in] p_ble_gattc_evt Pointer to the GATT Client event. |
sahilmgandhi | 18:6a4db94011d3 | 608 | */ |
sahilmgandhi | 18:6a4db94011d3 | 609 | static void on_characteristic_discovery_rsp(ble_db_discovery_t * const p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 610 | const ble_gattc_evt_t * const p_ble_gattc_evt) |
sahilmgandhi | 18:6a4db94011d3 | 611 | { |
sahilmgandhi | 18:6a4db94011d3 | 612 | uint32_t err_code; |
sahilmgandhi | 18:6a4db94011d3 | 613 | ble_gatt_db_srv_t * p_srv_being_discovered; |
sahilmgandhi | 18:6a4db94011d3 | 614 | bool perform_desc_discov = false; |
sahilmgandhi | 18:6a4db94011d3 | 615 | |
sahilmgandhi | 18:6a4db94011d3 | 616 | if (p_ble_gattc_evt->conn_handle != p_db_discovery->conn_handle) |
sahilmgandhi | 18:6a4db94011d3 | 617 | { |
sahilmgandhi | 18:6a4db94011d3 | 618 | return; |
sahilmgandhi | 18:6a4db94011d3 | 619 | } |
sahilmgandhi | 18:6a4db94011d3 | 620 | p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]); |
sahilmgandhi | 18:6a4db94011d3 | 621 | |
sahilmgandhi | 18:6a4db94011d3 | 622 | if (p_ble_gattc_evt->gatt_status == BLE_GATT_STATUS_SUCCESS) |
sahilmgandhi | 18:6a4db94011d3 | 623 | { |
sahilmgandhi | 18:6a4db94011d3 | 624 | const ble_gattc_evt_char_disc_rsp_t * p_char_disc_rsp_evt; |
sahilmgandhi | 18:6a4db94011d3 | 625 | |
sahilmgandhi | 18:6a4db94011d3 | 626 | p_char_disc_rsp_evt = &(p_ble_gattc_evt->params.char_disc_rsp); |
sahilmgandhi | 18:6a4db94011d3 | 627 | |
sahilmgandhi | 18:6a4db94011d3 | 628 | // Find out the number of characteristics that were previously discovered (in earlier |
sahilmgandhi | 18:6a4db94011d3 | 629 | // characteristic discovery responses, if any). |
sahilmgandhi | 18:6a4db94011d3 | 630 | uint8_t num_chars_prev_disc = p_srv_being_discovered->char_count; |
sahilmgandhi | 18:6a4db94011d3 | 631 | |
sahilmgandhi | 18:6a4db94011d3 | 632 | // Find out the number of characteristics that are currently discovered (in the |
sahilmgandhi | 18:6a4db94011d3 | 633 | // characteristic discovery response being handled). |
sahilmgandhi | 18:6a4db94011d3 | 634 | uint8_t num_chars_curr_disc = p_char_disc_rsp_evt->count; |
sahilmgandhi | 18:6a4db94011d3 | 635 | |
sahilmgandhi | 18:6a4db94011d3 | 636 | // Check if the total number of discovered characteristics are supported by this module. |
sahilmgandhi | 18:6a4db94011d3 | 637 | if ((num_chars_prev_disc + num_chars_curr_disc) <= BLE_GATT_DB_MAX_CHARS) |
sahilmgandhi | 18:6a4db94011d3 | 638 | { |
sahilmgandhi | 18:6a4db94011d3 | 639 | // Update the characteristics count. |
sahilmgandhi | 18:6a4db94011d3 | 640 | p_srv_being_discovered->char_count += num_chars_curr_disc; |
sahilmgandhi | 18:6a4db94011d3 | 641 | } |
sahilmgandhi | 18:6a4db94011d3 | 642 | else |
sahilmgandhi | 18:6a4db94011d3 | 643 | { |
sahilmgandhi | 18:6a4db94011d3 | 644 | // The number of characteristics discovered at the peer is more than the supported |
sahilmgandhi | 18:6a4db94011d3 | 645 | // maximum. This module will store only the characteristics found up to this point. |
sahilmgandhi | 18:6a4db94011d3 | 646 | p_srv_being_discovered->char_count = BLE_GATT_DB_MAX_CHARS; |
sahilmgandhi | 18:6a4db94011d3 | 647 | } |
sahilmgandhi | 18:6a4db94011d3 | 648 | |
sahilmgandhi | 18:6a4db94011d3 | 649 | uint32_t i; |
sahilmgandhi | 18:6a4db94011d3 | 650 | uint32_t j; |
sahilmgandhi | 18:6a4db94011d3 | 651 | |
sahilmgandhi | 18:6a4db94011d3 | 652 | for (i = num_chars_prev_disc, j = 0; i < p_srv_being_discovered->char_count; i++, j++) |
sahilmgandhi | 18:6a4db94011d3 | 653 | { |
sahilmgandhi | 18:6a4db94011d3 | 654 | p_srv_being_discovered->charateristics[i].characteristic = |
sahilmgandhi | 18:6a4db94011d3 | 655 | p_char_disc_rsp_evt->chars[j]; |
sahilmgandhi | 18:6a4db94011d3 | 656 | |
sahilmgandhi | 18:6a4db94011d3 | 657 | p_srv_being_discovered->charateristics[i].cccd_handle = BLE_GATT_HANDLE_INVALID; |
sahilmgandhi | 18:6a4db94011d3 | 658 | } |
sahilmgandhi | 18:6a4db94011d3 | 659 | |
sahilmgandhi | 18:6a4db94011d3 | 660 | ble_gattc_char_t * p_last_known_char; |
sahilmgandhi | 18:6a4db94011d3 | 661 | |
sahilmgandhi | 18:6a4db94011d3 | 662 | p_last_known_char = &(p_srv_being_discovered->charateristics[i - 1].characteristic); |
sahilmgandhi | 18:6a4db94011d3 | 663 | |
sahilmgandhi | 18:6a4db94011d3 | 664 | // If no more characteristic discovery is required, or if the maximum number of supported |
sahilmgandhi | 18:6a4db94011d3 | 665 | // characteristic per service has been reached, descriptor discovery will be performed. |
sahilmgandhi | 18:6a4db94011d3 | 666 | if ( |
sahilmgandhi | 18:6a4db94011d3 | 667 | !is_char_discovery_reqd(p_db_discovery, p_last_known_char) || |
sahilmgandhi | 18:6a4db94011d3 | 668 | (p_srv_being_discovered->char_count == BLE_GATT_DB_MAX_CHARS) |
sahilmgandhi | 18:6a4db94011d3 | 669 | ) |
sahilmgandhi | 18:6a4db94011d3 | 670 | { |
sahilmgandhi | 18:6a4db94011d3 | 671 | perform_desc_discov = true; |
sahilmgandhi | 18:6a4db94011d3 | 672 | } |
sahilmgandhi | 18:6a4db94011d3 | 673 | else |
sahilmgandhi | 18:6a4db94011d3 | 674 | { |
sahilmgandhi | 18:6a4db94011d3 | 675 | // Update the current characteristic index. |
sahilmgandhi | 18:6a4db94011d3 | 676 | p_db_discovery->curr_char_ind = p_srv_being_discovered->char_count; |
sahilmgandhi | 18:6a4db94011d3 | 677 | |
sahilmgandhi | 18:6a4db94011d3 | 678 | // Perform another round of characteristic discovery. |
sahilmgandhi | 18:6a4db94011d3 | 679 | err_code = characteristics_discover(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 680 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 681 | |
sahilmgandhi | 18:6a4db94011d3 | 682 | if (err_code != NRF_SUCCESS) |
sahilmgandhi | 18:6a4db94011d3 | 683 | { |
sahilmgandhi | 18:6a4db94011d3 | 684 | p_db_discovery->discovery_in_progress = false; |
sahilmgandhi | 18:6a4db94011d3 | 685 | |
sahilmgandhi | 18:6a4db94011d3 | 686 | discovery_error_evt_trigger(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 687 | err_code, |
sahilmgandhi | 18:6a4db94011d3 | 688 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 689 | |
sahilmgandhi | 18:6a4db94011d3 | 690 | m_pending_user_evts[0].evt.evt_type = BLE_DB_DISCOVERY_AVAILABLE; |
sahilmgandhi | 18:6a4db94011d3 | 691 | m_pending_user_evts[0].evt.conn_handle = p_ble_gattc_evt->conn_handle; |
sahilmgandhi | 18:6a4db94011d3 | 692 | //m_evt_handler(&m_pending_user_evts[0].evt); |
sahilmgandhi | 18:6a4db94011d3 | 693 | |
sahilmgandhi | 18:6a4db94011d3 | 694 | return; |
sahilmgandhi | 18:6a4db94011d3 | 695 | } |
sahilmgandhi | 18:6a4db94011d3 | 696 | } |
sahilmgandhi | 18:6a4db94011d3 | 697 | } |
sahilmgandhi | 18:6a4db94011d3 | 698 | else |
sahilmgandhi | 18:6a4db94011d3 | 699 | { |
sahilmgandhi | 18:6a4db94011d3 | 700 | // The previous characteristic discovery resulted in no characteristics. |
sahilmgandhi | 18:6a4db94011d3 | 701 | // descriptor discovery should be performed. |
sahilmgandhi | 18:6a4db94011d3 | 702 | perform_desc_discov = true; |
sahilmgandhi | 18:6a4db94011d3 | 703 | } |
sahilmgandhi | 18:6a4db94011d3 | 704 | |
sahilmgandhi | 18:6a4db94011d3 | 705 | if (perform_desc_discov) |
sahilmgandhi | 18:6a4db94011d3 | 706 | { |
sahilmgandhi | 18:6a4db94011d3 | 707 | bool raise_discov_complete; |
sahilmgandhi | 18:6a4db94011d3 | 708 | |
sahilmgandhi | 18:6a4db94011d3 | 709 | p_db_discovery->curr_char_ind = 0; |
sahilmgandhi | 18:6a4db94011d3 | 710 | |
sahilmgandhi | 18:6a4db94011d3 | 711 | err_code = descriptors_discover(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 712 | &raise_discov_complete, |
sahilmgandhi | 18:6a4db94011d3 | 713 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 714 | |
sahilmgandhi | 18:6a4db94011d3 | 715 | if (err_code != NRF_SUCCESS) |
sahilmgandhi | 18:6a4db94011d3 | 716 | { |
sahilmgandhi | 18:6a4db94011d3 | 717 | p_db_discovery->discovery_in_progress = false; |
sahilmgandhi | 18:6a4db94011d3 | 718 | |
sahilmgandhi | 18:6a4db94011d3 | 719 | discovery_error_evt_trigger(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 720 | err_code, |
sahilmgandhi | 18:6a4db94011d3 | 721 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 722 | |
sahilmgandhi | 18:6a4db94011d3 | 723 | m_pending_user_evts[0].evt.evt_type = BLE_DB_DISCOVERY_AVAILABLE; |
sahilmgandhi | 18:6a4db94011d3 | 724 | m_pending_user_evts[0].evt.conn_handle = p_ble_gattc_evt->conn_handle; |
sahilmgandhi | 18:6a4db94011d3 | 725 | //m_evt_handler(&m_pending_user_evts[0].evt); |
sahilmgandhi | 18:6a4db94011d3 | 726 | |
sahilmgandhi | 18:6a4db94011d3 | 727 | return; |
sahilmgandhi | 18:6a4db94011d3 | 728 | } |
sahilmgandhi | 18:6a4db94011d3 | 729 | if (raise_discov_complete) |
sahilmgandhi | 18:6a4db94011d3 | 730 | { |
sahilmgandhi | 18:6a4db94011d3 | 731 | // No more characteristics and descriptors need to be discovered. Discovery is complete. |
sahilmgandhi | 18:6a4db94011d3 | 732 | // Send a discovery complete event to the user application. |
sahilmgandhi | 18:6a4db94011d3 | 733 | DB_LOG("[DB]: Discovery of service with UUID 0x%x completed with success for Connection" |
sahilmgandhi | 18:6a4db94011d3 | 734 | " handle %d\r\n", p_srv_being_discovered->srv_uuid.uuid, |
sahilmgandhi | 18:6a4db94011d3 | 735 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 736 | |
sahilmgandhi | 18:6a4db94011d3 | 737 | discovery_complete_evt_trigger(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 738 | true, |
sahilmgandhi | 18:6a4db94011d3 | 739 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 740 | |
sahilmgandhi | 18:6a4db94011d3 | 741 | on_srv_disc_completion(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 742 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 743 | } |
sahilmgandhi | 18:6a4db94011d3 | 744 | } |
sahilmgandhi | 18:6a4db94011d3 | 745 | } |
sahilmgandhi | 18:6a4db94011d3 | 746 | |
sahilmgandhi | 18:6a4db94011d3 | 747 | |
sahilmgandhi | 18:6a4db94011d3 | 748 | /**@brief Function for handling descriptor discovery response. |
sahilmgandhi | 18:6a4db94011d3 | 749 | * |
sahilmgandhi | 18:6a4db94011d3 | 750 | * @param[in] p_db_discovery Pointer to the DB Discovery structure. |
sahilmgandhi | 18:6a4db94011d3 | 751 | * @param[in] p_ble_gattc_evt Pointer to the GATT Client event. |
sahilmgandhi | 18:6a4db94011d3 | 752 | */ |
sahilmgandhi | 18:6a4db94011d3 | 753 | static void on_descriptor_discovery_rsp(ble_db_discovery_t * const p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 754 | const ble_gattc_evt_t * const p_ble_gattc_evt) |
sahilmgandhi | 18:6a4db94011d3 | 755 | { |
sahilmgandhi | 18:6a4db94011d3 | 756 | const ble_gattc_evt_desc_disc_rsp_t * p_desc_disc_rsp_evt; |
sahilmgandhi | 18:6a4db94011d3 | 757 | ble_gatt_db_srv_t * p_srv_being_discovered; |
sahilmgandhi | 18:6a4db94011d3 | 758 | |
sahilmgandhi | 18:6a4db94011d3 | 759 | if (p_ble_gattc_evt->conn_handle != p_db_discovery->conn_handle) |
sahilmgandhi | 18:6a4db94011d3 | 760 | { |
sahilmgandhi | 18:6a4db94011d3 | 761 | return; |
sahilmgandhi | 18:6a4db94011d3 | 762 | } |
sahilmgandhi | 18:6a4db94011d3 | 763 | |
sahilmgandhi | 18:6a4db94011d3 | 764 | p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]); |
sahilmgandhi | 18:6a4db94011d3 | 765 | |
sahilmgandhi | 18:6a4db94011d3 | 766 | p_desc_disc_rsp_evt = &(p_ble_gattc_evt->params.desc_disc_rsp); |
sahilmgandhi | 18:6a4db94011d3 | 767 | |
sahilmgandhi | 18:6a4db94011d3 | 768 | ble_gatt_db_char_t * p_char_being_discovered = |
sahilmgandhi | 18:6a4db94011d3 | 769 | &(p_srv_being_discovered->charateristics[p_db_discovery->curr_char_ind]); |
sahilmgandhi | 18:6a4db94011d3 | 770 | |
sahilmgandhi | 18:6a4db94011d3 | 771 | if (p_ble_gattc_evt->gatt_status == BLE_GATT_STATUS_SUCCESS) |
sahilmgandhi | 18:6a4db94011d3 | 772 | { |
sahilmgandhi | 18:6a4db94011d3 | 773 | // The descriptor was found at the peer. |
sahilmgandhi | 18:6a4db94011d3 | 774 | // If the descriptor was a CCCD, then the cccd_handle needs to be populated. |
sahilmgandhi | 18:6a4db94011d3 | 775 | |
sahilmgandhi | 18:6a4db94011d3 | 776 | uint32_t i; |
sahilmgandhi | 18:6a4db94011d3 | 777 | |
sahilmgandhi | 18:6a4db94011d3 | 778 | // Loop through all the descriptors to find the CCCD. |
sahilmgandhi | 18:6a4db94011d3 | 779 | for (i = 0; i < p_desc_disc_rsp_evt->count; i++) |
sahilmgandhi | 18:6a4db94011d3 | 780 | { |
sahilmgandhi | 18:6a4db94011d3 | 781 | if ( |
sahilmgandhi | 18:6a4db94011d3 | 782 | p_desc_disc_rsp_evt->descs[i].uuid.uuid == |
sahilmgandhi | 18:6a4db94011d3 | 783 | BLE_UUID_DESCRIPTOR_CLIENT_CHAR_CONFIG |
sahilmgandhi | 18:6a4db94011d3 | 784 | ) |
sahilmgandhi | 18:6a4db94011d3 | 785 | { |
sahilmgandhi | 18:6a4db94011d3 | 786 | p_char_being_discovered->cccd_handle = p_desc_disc_rsp_evt->descs[i].handle; |
sahilmgandhi | 18:6a4db94011d3 | 787 | |
sahilmgandhi | 18:6a4db94011d3 | 788 | break; |
sahilmgandhi | 18:6a4db94011d3 | 789 | } |
sahilmgandhi | 18:6a4db94011d3 | 790 | } |
sahilmgandhi | 18:6a4db94011d3 | 791 | } |
sahilmgandhi | 18:6a4db94011d3 | 792 | |
sahilmgandhi | 18:6a4db94011d3 | 793 | bool raise_discov_complete = false; |
sahilmgandhi | 18:6a4db94011d3 | 794 | |
sahilmgandhi | 18:6a4db94011d3 | 795 | if ((p_db_discovery->curr_char_ind + 1) == p_srv_being_discovered->char_count) |
sahilmgandhi | 18:6a4db94011d3 | 796 | { |
sahilmgandhi | 18:6a4db94011d3 | 797 | // No more characteristics and descriptors need to be discovered. Discovery is complete. |
sahilmgandhi | 18:6a4db94011d3 | 798 | // Send a discovery complete event to the user application. |
sahilmgandhi | 18:6a4db94011d3 | 799 | |
sahilmgandhi | 18:6a4db94011d3 | 800 | raise_discov_complete = true; |
sahilmgandhi | 18:6a4db94011d3 | 801 | } |
sahilmgandhi | 18:6a4db94011d3 | 802 | else |
sahilmgandhi | 18:6a4db94011d3 | 803 | { |
sahilmgandhi | 18:6a4db94011d3 | 804 | // Begin discovery of descriptors for the next characteristic. |
sahilmgandhi | 18:6a4db94011d3 | 805 | uint32_t err_code; |
sahilmgandhi | 18:6a4db94011d3 | 806 | |
sahilmgandhi | 18:6a4db94011d3 | 807 | p_db_discovery->curr_char_ind++; |
sahilmgandhi | 18:6a4db94011d3 | 808 | |
sahilmgandhi | 18:6a4db94011d3 | 809 | err_code = descriptors_discover(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 810 | &raise_discov_complete, |
sahilmgandhi | 18:6a4db94011d3 | 811 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 812 | |
sahilmgandhi | 18:6a4db94011d3 | 813 | if (err_code != NRF_SUCCESS) |
sahilmgandhi | 18:6a4db94011d3 | 814 | { |
sahilmgandhi | 18:6a4db94011d3 | 815 | p_db_discovery->discovery_in_progress = false; |
sahilmgandhi | 18:6a4db94011d3 | 816 | |
sahilmgandhi | 18:6a4db94011d3 | 817 | // Error with discovering the service. |
sahilmgandhi | 18:6a4db94011d3 | 818 | // Indicate the error to the registered user application. |
sahilmgandhi | 18:6a4db94011d3 | 819 | discovery_error_evt_trigger(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 820 | err_code, |
sahilmgandhi | 18:6a4db94011d3 | 821 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 822 | |
sahilmgandhi | 18:6a4db94011d3 | 823 | m_pending_user_evts[0].evt.evt_type = BLE_DB_DISCOVERY_AVAILABLE; |
sahilmgandhi | 18:6a4db94011d3 | 824 | m_pending_user_evts[0].evt.conn_handle = p_ble_gattc_evt->conn_handle; |
sahilmgandhi | 18:6a4db94011d3 | 825 | |
sahilmgandhi | 18:6a4db94011d3 | 826 | return; |
sahilmgandhi | 18:6a4db94011d3 | 827 | } |
sahilmgandhi | 18:6a4db94011d3 | 828 | } |
sahilmgandhi | 18:6a4db94011d3 | 829 | |
sahilmgandhi | 18:6a4db94011d3 | 830 | if (raise_discov_complete) |
sahilmgandhi | 18:6a4db94011d3 | 831 | { |
sahilmgandhi | 18:6a4db94011d3 | 832 | DB_LOG("[DB]: Discovery of service with UUID 0x%x completed with success for Connection" |
sahilmgandhi | 18:6a4db94011d3 | 833 | "handle %d\r\n", p_srv_being_discovered->srv_uuid.uuid, |
sahilmgandhi | 18:6a4db94011d3 | 834 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 835 | |
sahilmgandhi | 18:6a4db94011d3 | 836 | discovery_complete_evt_trigger(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 837 | true, |
sahilmgandhi | 18:6a4db94011d3 | 838 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 839 | |
sahilmgandhi | 18:6a4db94011d3 | 840 | on_srv_disc_completion(p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 841 | p_ble_gattc_evt->conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 842 | } |
sahilmgandhi | 18:6a4db94011d3 | 843 | } |
sahilmgandhi | 18:6a4db94011d3 | 844 | |
sahilmgandhi | 18:6a4db94011d3 | 845 | |
sahilmgandhi | 18:6a4db94011d3 | 846 | uint32_t ble_db_discovery_init(const ble_db_discovery_evt_handler_t evt_handler) |
sahilmgandhi | 18:6a4db94011d3 | 847 | { |
sahilmgandhi | 18:6a4db94011d3 | 848 | uint32_t err_code = NRF_SUCCESS; |
sahilmgandhi | 18:6a4db94011d3 | 849 | VERIFY_PARAM_NOT_NULL(evt_handler); |
sahilmgandhi | 18:6a4db94011d3 | 850 | |
sahilmgandhi | 18:6a4db94011d3 | 851 | m_num_of_handlers_reg = 0; |
sahilmgandhi | 18:6a4db94011d3 | 852 | m_initialized = true; |
sahilmgandhi | 18:6a4db94011d3 | 853 | m_pending_usr_evt_index = 0; |
sahilmgandhi | 18:6a4db94011d3 | 854 | m_evt_handler = evt_handler; |
sahilmgandhi | 18:6a4db94011d3 | 855 | |
sahilmgandhi | 18:6a4db94011d3 | 856 | return err_code; |
sahilmgandhi | 18:6a4db94011d3 | 857 | |
sahilmgandhi | 18:6a4db94011d3 | 858 | } |
sahilmgandhi | 18:6a4db94011d3 | 859 | |
sahilmgandhi | 18:6a4db94011d3 | 860 | |
sahilmgandhi | 18:6a4db94011d3 | 861 | uint32_t ble_db_discovery_close() |
sahilmgandhi | 18:6a4db94011d3 | 862 | { |
sahilmgandhi | 18:6a4db94011d3 | 863 | m_num_of_handlers_reg = 0; |
sahilmgandhi | 18:6a4db94011d3 | 864 | m_initialized = false; |
sahilmgandhi | 18:6a4db94011d3 | 865 | m_pending_usr_evt_index = 0; |
sahilmgandhi | 18:6a4db94011d3 | 866 | |
sahilmgandhi | 18:6a4db94011d3 | 867 | return NRF_SUCCESS; |
sahilmgandhi | 18:6a4db94011d3 | 868 | } |
sahilmgandhi | 18:6a4db94011d3 | 869 | |
sahilmgandhi | 18:6a4db94011d3 | 870 | |
sahilmgandhi | 18:6a4db94011d3 | 871 | uint32_t ble_db_discovery_evt_register(const ble_uuid_t * const p_uuid) |
sahilmgandhi | 18:6a4db94011d3 | 872 | { |
sahilmgandhi | 18:6a4db94011d3 | 873 | VERIFY_PARAM_NOT_NULL(p_uuid); |
sahilmgandhi | 18:6a4db94011d3 | 874 | VERIFY_MODULE_INITIALIZED(); |
sahilmgandhi | 18:6a4db94011d3 | 875 | |
sahilmgandhi | 18:6a4db94011d3 | 876 | return registered_handler_set(p_uuid, m_evt_handler); |
sahilmgandhi | 18:6a4db94011d3 | 877 | } |
sahilmgandhi | 18:6a4db94011d3 | 878 | |
sahilmgandhi | 18:6a4db94011d3 | 879 | |
sahilmgandhi | 18:6a4db94011d3 | 880 | uint32_t ble_db_discovery_start(ble_db_discovery_t * const p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 881 | uint16_t conn_handle) |
sahilmgandhi | 18:6a4db94011d3 | 882 | { |
sahilmgandhi | 18:6a4db94011d3 | 883 | VERIFY_PARAM_NOT_NULL(p_db_discovery); |
sahilmgandhi | 18:6a4db94011d3 | 884 | VERIFY_MODULE_INITIALIZED(); |
sahilmgandhi | 18:6a4db94011d3 | 885 | |
sahilmgandhi | 18:6a4db94011d3 | 886 | if (m_num_of_handlers_reg == 0) |
sahilmgandhi | 18:6a4db94011d3 | 887 | { |
sahilmgandhi | 18:6a4db94011d3 | 888 | // No user modules were registered. There are no services to discover. |
sahilmgandhi | 18:6a4db94011d3 | 889 | return NRF_ERROR_INVALID_STATE; |
sahilmgandhi | 18:6a4db94011d3 | 890 | } |
sahilmgandhi | 18:6a4db94011d3 | 891 | |
sahilmgandhi | 18:6a4db94011d3 | 892 | if (p_db_discovery->discovery_in_progress) |
sahilmgandhi | 18:6a4db94011d3 | 893 | { |
sahilmgandhi | 18:6a4db94011d3 | 894 | return NRF_ERROR_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 895 | } |
sahilmgandhi | 18:6a4db94011d3 | 896 | |
sahilmgandhi | 18:6a4db94011d3 | 897 | p_db_discovery->conn_handle = conn_handle; |
sahilmgandhi | 18:6a4db94011d3 | 898 | ble_gatt_db_srv_t * p_srv_being_discovered; |
sahilmgandhi | 18:6a4db94011d3 | 899 | |
sahilmgandhi | 18:6a4db94011d3 | 900 | m_pending_usr_evt_index = 0; |
sahilmgandhi | 18:6a4db94011d3 | 901 | |
sahilmgandhi | 18:6a4db94011d3 | 902 | p_db_discovery->discoveries_count = 0; |
sahilmgandhi | 18:6a4db94011d3 | 903 | p_db_discovery->curr_srv_ind = 0; |
sahilmgandhi | 18:6a4db94011d3 | 904 | |
sahilmgandhi | 18:6a4db94011d3 | 905 | p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]); |
sahilmgandhi | 18:6a4db94011d3 | 906 | |
sahilmgandhi | 18:6a4db94011d3 | 907 | p_srv_being_discovered->srv_uuid = m_registered_handlers[p_db_discovery->curr_srv_ind]; |
sahilmgandhi | 18:6a4db94011d3 | 908 | |
sahilmgandhi | 18:6a4db94011d3 | 909 | DB_LOG("[DB]: Starting discovery of service with UUID 0x%x for Connection handle %d\r\n", |
sahilmgandhi | 18:6a4db94011d3 | 910 | p_srv_being_discovered->srv_uuid.uuid, conn_handle); |
sahilmgandhi | 18:6a4db94011d3 | 911 | |
sahilmgandhi | 18:6a4db94011d3 | 912 | uint32_t err_code; |
sahilmgandhi | 18:6a4db94011d3 | 913 | |
sahilmgandhi | 18:6a4db94011d3 | 914 | err_code = sd_ble_gattc_primary_services_discover(conn_handle, |
sahilmgandhi | 18:6a4db94011d3 | 915 | SRV_DISC_START_HANDLE, |
sahilmgandhi | 18:6a4db94011d3 | 916 | &(p_srv_being_discovered->srv_uuid)); |
sahilmgandhi | 18:6a4db94011d3 | 917 | VERIFY_SUCCESS(err_code); |
sahilmgandhi | 18:6a4db94011d3 | 918 | p_db_discovery->discovery_in_progress = true; |
sahilmgandhi | 18:6a4db94011d3 | 919 | |
sahilmgandhi | 18:6a4db94011d3 | 920 | return NRF_SUCCESS; |
sahilmgandhi | 18:6a4db94011d3 | 921 | } |
sahilmgandhi | 18:6a4db94011d3 | 922 | |
sahilmgandhi | 18:6a4db94011d3 | 923 | |
sahilmgandhi | 18:6a4db94011d3 | 924 | /**@brief Function for handling disconnected event. |
sahilmgandhi | 18:6a4db94011d3 | 925 | * |
sahilmgandhi | 18:6a4db94011d3 | 926 | * @param[in] p_db_discovery Pointer to the DB Discovery structure. |
sahilmgandhi | 18:6a4db94011d3 | 927 | * @param[in] p_ble_gattc_evt Pointer to the GAP event. |
sahilmgandhi | 18:6a4db94011d3 | 928 | */ |
sahilmgandhi | 18:6a4db94011d3 | 929 | static void on_disconnected(ble_db_discovery_t * const p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 930 | const ble_gap_evt_t * const p_evt) |
sahilmgandhi | 18:6a4db94011d3 | 931 | { |
sahilmgandhi | 18:6a4db94011d3 | 932 | if (p_evt->conn_handle == p_db_discovery->conn_handle) |
sahilmgandhi | 18:6a4db94011d3 | 933 | { |
sahilmgandhi | 18:6a4db94011d3 | 934 | p_db_discovery->discovery_in_progress = false; |
sahilmgandhi | 18:6a4db94011d3 | 935 | } |
sahilmgandhi | 18:6a4db94011d3 | 936 | } |
sahilmgandhi | 18:6a4db94011d3 | 937 | |
sahilmgandhi | 18:6a4db94011d3 | 938 | |
sahilmgandhi | 18:6a4db94011d3 | 939 | void ble_db_discovery_on_ble_evt(ble_db_discovery_t * const p_db_discovery, |
sahilmgandhi | 18:6a4db94011d3 | 940 | const ble_evt_t * const p_ble_evt) |
sahilmgandhi | 18:6a4db94011d3 | 941 | { |
sahilmgandhi | 18:6a4db94011d3 | 942 | VERIFY_PARAM_NOT_NULL_VOID(p_db_discovery); |
sahilmgandhi | 18:6a4db94011d3 | 943 | VERIFY_PARAM_NOT_NULL_VOID(p_ble_evt); |
sahilmgandhi | 18:6a4db94011d3 | 944 | VERIFY_MODULE_INITIALIZED_VOID(); |
sahilmgandhi | 18:6a4db94011d3 | 945 | |
sahilmgandhi | 18:6a4db94011d3 | 946 | switch (p_ble_evt->header.evt_id) |
sahilmgandhi | 18:6a4db94011d3 | 947 | { |
sahilmgandhi | 18:6a4db94011d3 | 948 | case BLE_GATTC_EVT_PRIM_SRVC_DISC_RSP: |
sahilmgandhi | 18:6a4db94011d3 | 949 | on_primary_srv_discovery_rsp(p_db_discovery, &(p_ble_evt->evt.gattc_evt)); |
sahilmgandhi | 18:6a4db94011d3 | 950 | break; |
sahilmgandhi | 18:6a4db94011d3 | 951 | |
sahilmgandhi | 18:6a4db94011d3 | 952 | case BLE_GATTC_EVT_CHAR_DISC_RSP: |
sahilmgandhi | 18:6a4db94011d3 | 953 | on_characteristic_discovery_rsp(p_db_discovery, &(p_ble_evt->evt.gattc_evt)); |
sahilmgandhi | 18:6a4db94011d3 | 954 | break; |
sahilmgandhi | 18:6a4db94011d3 | 955 | |
sahilmgandhi | 18:6a4db94011d3 | 956 | case BLE_GATTC_EVT_DESC_DISC_RSP: |
sahilmgandhi | 18:6a4db94011d3 | 957 | on_descriptor_discovery_rsp(p_db_discovery, &(p_ble_evt->evt.gattc_evt)); |
sahilmgandhi | 18:6a4db94011d3 | 958 | break; |
sahilmgandhi | 18:6a4db94011d3 | 959 | |
sahilmgandhi | 18:6a4db94011d3 | 960 | case BLE_GAP_EVT_DISCONNECTED: |
sahilmgandhi | 18:6a4db94011d3 | 961 | on_disconnected(p_db_discovery, &(p_ble_evt->evt.gap_evt)); |
sahilmgandhi | 18:6a4db94011d3 | 962 | break; |
sahilmgandhi | 18:6a4db94011d3 | 963 | |
sahilmgandhi | 18:6a4db94011d3 | 964 | default: |
sahilmgandhi | 18:6a4db94011d3 | 965 | break; |
sahilmgandhi | 18:6a4db94011d3 | 966 | } |
sahilmgandhi | 18:6a4db94011d3 | 967 | } |