test
Fork of nRF51822 by
source/nordic-sdk/components/ble/common/ble_conn_params.cpp@448:b71e96a821de, 2015-10-10 (annotated)
- Committer:
- GlimwormBeacons
- Date:
- Sat Oct 10 09:19:50 2015 +0000
- Revision:
- 448:b71e96a821de
- Parent:
- 387:b13ab9a7ddb9
test
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
rgrover1 | 371:8f7d2137727a | 1 | /* |
rgrover1 | 371:8f7d2137727a | 2 | * Copyright (c) Nordic Semiconductor ASA |
rgrover1 | 371:8f7d2137727a | 3 | * All rights reserved. |
rgrover1 | 371:8f7d2137727a | 4 | * |
rgrover1 | 371:8f7d2137727a | 5 | * Redistribution and use in source and binary forms, with or without modification, |
rgrover1 | 371:8f7d2137727a | 6 | * are permitted provided that the following conditions are met: |
rgrover1 | 371:8f7d2137727a | 7 | * |
rgrover1 | 371:8f7d2137727a | 8 | * 1. Redistributions of source code must retain the above copyright notice, this |
rgrover1 | 371:8f7d2137727a | 9 | * list of conditions and the following disclaimer. |
rgrover1 | 371:8f7d2137727a | 10 | * |
rgrover1 | 371:8f7d2137727a | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, this |
rgrover1 | 371:8f7d2137727a | 12 | * list of conditions and the following disclaimer in the documentation and/or |
rgrover1 | 371:8f7d2137727a | 13 | * other materials provided with the distribution. |
rgrover1 | 371:8f7d2137727a | 14 | * |
rgrover1 | 371:8f7d2137727a | 15 | * 3. Neither the name of Nordic Semiconductor ASA nor the names of other |
rgrover1 | 371:8f7d2137727a | 16 | * contributors to this software may be used to endorse or promote products |
rgrover1 | 371:8f7d2137727a | 17 | * derived from this software without specific prior written permission. |
rgrover1 | 371:8f7d2137727a | 18 | * |
rgrover1 | 371:8f7d2137727a | 19 | * |
rgrover1 | 371:8f7d2137727a | 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
rgrover1 | 371:8f7d2137727a | 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
rgrover1 | 371:8f7d2137727a | 22 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
rgrover1 | 371:8f7d2137727a | 23 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
rgrover1 | 371:8f7d2137727a | 24 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
rgrover1 | 371:8f7d2137727a | 25 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
rgrover1 | 371:8f7d2137727a | 26 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
rgrover1 | 371:8f7d2137727a | 27 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
rgrover1 | 371:8f7d2137727a | 28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
rgrover1 | 371:8f7d2137727a | 29 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
rgrover1 | 371:8f7d2137727a | 30 | * |
rgrover1 | 371:8f7d2137727a | 31 | */ |
rgrover1 | 371:8f7d2137727a | 32 | |
rgrover1 | 371:8f7d2137727a | 33 | #include "ble_conn_params.h" |
rgrover1 | 371:8f7d2137727a | 34 | #include <stdlib.h> |
rgrover1 | 371:8f7d2137727a | 35 | #include "nordic_common.h" |
rgrover1 | 371:8f7d2137727a | 36 | #include "ble_hci.h" |
rgrover1 | 371:8f7d2137727a | 37 | #include "ble_srv_common.h" |
rgrover1 | 371:8f7d2137727a | 38 | #include "app_util.h" |
rgrover1 | 371:8f7d2137727a | 39 | |
rgrover1 | 371:8f7d2137727a | 40 | #ifdef USE_APP_TIMER |
rgrover1 | 371:8f7d2137727a | 41 | #include "app_timer.h" |
rgrover1 | 371:8f7d2137727a | 42 | #else |
rgrover1 | 371:8f7d2137727a | 43 | #include "mbed.h" |
rgrover1 | 371:8f7d2137727a | 44 | #endif |
rgrover1 | 371:8f7d2137727a | 45 | |
rgrover1 | 371:8f7d2137727a | 46 | static ble_conn_params_init_t m_conn_params_config; /**< Configuration as specified by the application. */ |
rgrover1 | 371:8f7d2137727a | 47 | static ble_gap_conn_params_t m_preferred_conn_params; /**< Connection parameters preferred by the application. */ |
rgrover1 | 371:8f7d2137727a | 48 | static uint8_t m_update_count; /**< Number of Connection Parameter Update messages that has currently been sent. */ |
rgrover1 | 371:8f7d2137727a | 49 | static uint16_t m_conn_handle; /**< Current connection handle. */ |
rgrover1 | 371:8f7d2137727a | 50 | static ble_gap_conn_params_t m_current_conn_params; /**< Connection parameters received in the most recent Connect event. */ |
rgrover1 | 371:8f7d2137727a | 51 | #ifdef USE_APP_TIMER |
rgrover1 | 371:8f7d2137727a | 52 | static app_timer_id_t m_conn_params_timer_id; /**< Connection parameters timer. */ |
rgrover1 | 371:8f7d2137727a | 53 | #else |
rgrover1 | 371:8f7d2137727a | 54 | static Ticker m_conn_params_timer; |
rgrover1 | 371:8f7d2137727a | 55 | #endif |
rgrover1 | 371:8f7d2137727a | 56 | |
rgrover1 | 371:8f7d2137727a | 57 | static bool m_change_param = false; |
rgrover1 | 371:8f7d2137727a | 58 | |
rgrover1 | 371:8f7d2137727a | 59 | static bool is_conn_params_ok(ble_gap_conn_params_t * p_conn_params) |
rgrover1 | 371:8f7d2137727a | 60 | { |
rgrover1 | 371:8f7d2137727a | 61 | // Check if interval is within the acceptable range. |
rgrover1 | 371:8f7d2137727a | 62 | // NOTE: Using max_conn_interval in the received event data because this contains |
rgrover1 | 371:8f7d2137727a | 63 | // the client's connection interval. |
rgrover1 | 371:8f7d2137727a | 64 | if ( |
rgrover1 | 371:8f7d2137727a | 65 | (p_conn_params->max_conn_interval >= m_preferred_conn_params.min_conn_interval) |
rgrover1 | 371:8f7d2137727a | 66 | && |
rgrover1 | 371:8f7d2137727a | 67 | (p_conn_params->max_conn_interval <= m_preferred_conn_params.max_conn_interval) |
rgrover1 | 371:8f7d2137727a | 68 | ) |
rgrover1 | 371:8f7d2137727a | 69 | { |
rgrover1 | 371:8f7d2137727a | 70 | return true; |
rgrover1 | 371:8f7d2137727a | 71 | } |
rgrover1 | 371:8f7d2137727a | 72 | else |
rgrover1 | 371:8f7d2137727a | 73 | { |
rgrover1 | 371:8f7d2137727a | 74 | return false; |
rgrover1 | 371:8f7d2137727a | 75 | } |
rgrover1 | 371:8f7d2137727a | 76 | } |
rgrover1 | 371:8f7d2137727a | 77 | |
rgrover1 | 371:8f7d2137727a | 78 | |
rgrover1 | 371:8f7d2137727a | 79 | #ifdef USE_APP_TIMER |
rgrover1 | 371:8f7d2137727a | 80 | static void update_timeout_handler(void * p_context) |
rgrover1 | 371:8f7d2137727a | 81 | { |
rgrover1 | 371:8f7d2137727a | 82 | UNUSED_PARAMETER(p_context); |
rgrover1 | 371:8f7d2137727a | 83 | |
rgrover1 | 371:8f7d2137727a | 84 | #else /* #if !USE_APP_TIMER */ |
rgrover1 | 371:8f7d2137727a | 85 | static void update_timeout_handler(void) |
rgrover1 | 371:8f7d2137727a | 86 | { |
rgrover1 | 371:8f7d2137727a | 87 | m_conn_params_timer.detach(); /* this is supposed to be a single-shot timer callback */ |
rgrover1 | 371:8f7d2137727a | 88 | #endif /* #if !USE_APP_TIMER */ |
rgrover1 | 371:8f7d2137727a | 89 | if (m_conn_handle != BLE_CONN_HANDLE_INVALID) |
rgrover1 | 371:8f7d2137727a | 90 | { |
rgrover1 | 371:8f7d2137727a | 91 | // Check if we have reached the maximum number of attempts |
rgrover1 | 371:8f7d2137727a | 92 | m_update_count++; |
rgrover1 | 371:8f7d2137727a | 93 | if (m_update_count <= m_conn_params_config.max_conn_params_update_count) |
rgrover1 | 371:8f7d2137727a | 94 | { |
rgrover1 | 371:8f7d2137727a | 95 | uint32_t err_code; |
rgrover1 | 371:8f7d2137727a | 96 | |
rgrover1 | 371:8f7d2137727a | 97 | // Parameters are not ok, send connection parameters update request. |
rgrover1 | 371:8f7d2137727a | 98 | err_code = sd_ble_gap_conn_param_update(m_conn_handle, &m_preferred_conn_params); |
rgrover1 | 371:8f7d2137727a | 99 | if ((err_code != NRF_SUCCESS) && (m_conn_params_config.error_handler != NULL)) |
rgrover1 | 371:8f7d2137727a | 100 | { |
rgrover1 | 371:8f7d2137727a | 101 | m_conn_params_config.error_handler(err_code); |
rgrover1 | 371:8f7d2137727a | 102 | } |
rgrover1 | 371:8f7d2137727a | 103 | } |
rgrover1 | 371:8f7d2137727a | 104 | else |
rgrover1 | 371:8f7d2137727a | 105 | { |
rgrover1 | 371:8f7d2137727a | 106 | m_update_count = 0; |
rgrover1 | 371:8f7d2137727a | 107 | |
rgrover1 | 371:8f7d2137727a | 108 | // Negotiation failed, disconnect automatically if this has been configured |
rgrover1 | 371:8f7d2137727a | 109 | if (m_conn_params_config.disconnect_on_fail) |
rgrover1 | 371:8f7d2137727a | 110 | { |
rgrover1 | 371:8f7d2137727a | 111 | uint32_t err_code; |
rgrover1 | 371:8f7d2137727a | 112 | |
rgrover1 | 371:8f7d2137727a | 113 | err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE); |
rgrover1 | 371:8f7d2137727a | 114 | if ((err_code != NRF_SUCCESS) && (m_conn_params_config.error_handler != NULL)) |
rgrover1 | 371:8f7d2137727a | 115 | { |
rgrover1 | 371:8f7d2137727a | 116 | m_conn_params_config.error_handler(err_code); |
rgrover1 | 371:8f7d2137727a | 117 | } |
rgrover1 | 371:8f7d2137727a | 118 | } |
rgrover1 | 371:8f7d2137727a | 119 | |
rgrover1 | 371:8f7d2137727a | 120 | // Notify the application that the procedure has failed |
rgrover1 | 371:8f7d2137727a | 121 | if (m_conn_params_config.evt_handler != NULL) |
rgrover1 | 371:8f7d2137727a | 122 | { |
rgrover1 | 371:8f7d2137727a | 123 | ble_conn_params_evt_t evt; |
rgrover1 | 371:8f7d2137727a | 124 | |
rgrover1 | 371:8f7d2137727a | 125 | evt.evt_type = BLE_CONN_PARAMS_EVT_FAILED; |
rgrover1 | 371:8f7d2137727a | 126 | m_conn_params_config.evt_handler(&evt); |
rgrover1 | 371:8f7d2137727a | 127 | } |
rgrover1 | 371:8f7d2137727a | 128 | } |
rgrover1 | 371:8f7d2137727a | 129 | } |
rgrover1 | 371:8f7d2137727a | 130 | } |
rgrover1 | 371:8f7d2137727a | 131 | |
rgrover1 | 371:8f7d2137727a | 132 | |
rgrover1 | 371:8f7d2137727a | 133 | uint32_t ble_conn_params_init(const ble_conn_params_init_t * p_init) |
rgrover1 | 371:8f7d2137727a | 134 | { |
rgrover1 | 371:8f7d2137727a | 135 | uint32_t err_code; |
rgrover1 | 371:8f7d2137727a | 136 | |
rgrover1 | 371:8f7d2137727a | 137 | m_conn_params_config = *p_init; |
rgrover1 | 371:8f7d2137727a | 138 | m_change_param = false; |
rgrover1 | 371:8f7d2137727a | 139 | if (p_init->p_conn_params != NULL) |
rgrover1 | 371:8f7d2137727a | 140 | { |
rgrover1 | 371:8f7d2137727a | 141 | m_preferred_conn_params = *p_init->p_conn_params; |
rgrover1 | 371:8f7d2137727a | 142 | |
rgrover1 | 371:8f7d2137727a | 143 | // Set the connection params in stack |
rgrover1 | 371:8f7d2137727a | 144 | err_code = sd_ble_gap_ppcp_set(&m_preferred_conn_params); |
rgrover1 | 371:8f7d2137727a | 145 | if (err_code != NRF_SUCCESS) |
rgrover1 | 371:8f7d2137727a | 146 | { |
rgrover1 | 371:8f7d2137727a | 147 | return err_code; |
rgrover1 | 371:8f7d2137727a | 148 | } |
rgrover1 | 371:8f7d2137727a | 149 | } |
rgrover1 | 371:8f7d2137727a | 150 | else |
rgrover1 | 371:8f7d2137727a | 151 | { |
rgrover1 | 371:8f7d2137727a | 152 | // Fetch the connection params from stack |
rgrover1 | 371:8f7d2137727a | 153 | err_code = sd_ble_gap_ppcp_get(&m_preferred_conn_params); |
rgrover1 | 371:8f7d2137727a | 154 | if (err_code != NRF_SUCCESS) |
rgrover1 | 371:8f7d2137727a | 155 | { |
rgrover1 | 371:8f7d2137727a | 156 | return err_code; |
rgrover1 | 371:8f7d2137727a | 157 | } |
rgrover1 | 371:8f7d2137727a | 158 | } |
rgrover1 | 371:8f7d2137727a | 159 | |
rgrover1 | 371:8f7d2137727a | 160 | m_conn_handle = BLE_CONN_HANDLE_INVALID; |
rgrover1 | 371:8f7d2137727a | 161 | m_update_count = 0; |
rgrover1 | 371:8f7d2137727a | 162 | |
rgrover1 | 371:8f7d2137727a | 163 | #ifdef USE_APP_TIMER |
rgrover1 | 371:8f7d2137727a | 164 | return app_timer_create(&m_conn_params_timer_id, |
rgrover1 | 371:8f7d2137727a | 165 | APP_TIMER_MODE_SINGLE_SHOT, |
rgrover1 | 371:8f7d2137727a | 166 | update_timeout_handler); |
rgrover1 | 371:8f7d2137727a | 167 | #else |
rgrover1 | 371:8f7d2137727a | 168 | return NRF_SUCCESS; |
rgrover1 | 371:8f7d2137727a | 169 | #endif |
rgrover1 | 371:8f7d2137727a | 170 | } |
rgrover1 | 371:8f7d2137727a | 171 | |
rgrover1 | 371:8f7d2137727a | 172 | |
rgrover1 | 371:8f7d2137727a | 173 | uint32_t ble_conn_params_stop(void) |
rgrover1 | 371:8f7d2137727a | 174 | { |
rgrover1 | 371:8f7d2137727a | 175 | #ifdef USE_APP_TIMER |
rgrover1 | 371:8f7d2137727a | 176 | return app_timer_stop(m_conn_params_timer_id); |
rgrover1 | 371:8f7d2137727a | 177 | #else /* #if !USE_APP_TIMER */ |
rgrover1 | 371:8f7d2137727a | 178 | m_conn_params_timer.detach(); |
rgrover1 | 371:8f7d2137727a | 179 | return NRF_SUCCESS; |
rgrover1 | 371:8f7d2137727a | 180 | #endif /* #if !USE_APP_TIMER */ |
rgrover1 | 371:8f7d2137727a | 181 | } |
rgrover1 | 371:8f7d2137727a | 182 | |
rgrover1 | 371:8f7d2137727a | 183 | |
rgrover1 | 371:8f7d2137727a | 184 | static void conn_params_negotiation(void) |
rgrover1 | 371:8f7d2137727a | 185 | { |
rgrover1 | 371:8f7d2137727a | 186 | // Start negotiation if the received connection parameters are not acceptable |
rgrover1 | 371:8f7d2137727a | 187 | if (!is_conn_params_ok(&m_current_conn_params)) |
rgrover1 | 371:8f7d2137727a | 188 | { |
rgrover1 | 371:8f7d2137727a | 189 | #ifdef USE_APP_TIMER |
rgrover1 | 371:8f7d2137727a | 190 | uint32_t err_code; |
rgrover1 | 371:8f7d2137727a | 191 | #endif |
rgrover1 | 371:8f7d2137727a | 192 | uint32_t timeout_ticks; |
rgrover1 | 371:8f7d2137727a | 193 | |
rgrover1 | 371:8f7d2137727a | 194 | if (m_change_param) |
rgrover1 | 371:8f7d2137727a | 195 | { |
rgrover1 | 371:8f7d2137727a | 196 | // Notify the application that the procedure has failed |
rgrover1 | 371:8f7d2137727a | 197 | if (m_conn_params_config.evt_handler != NULL) |
rgrover1 | 371:8f7d2137727a | 198 | { |
rgrover1 | 371:8f7d2137727a | 199 | ble_conn_params_evt_t evt; |
rgrover1 | 371:8f7d2137727a | 200 | |
rgrover1 | 371:8f7d2137727a | 201 | evt.evt_type = BLE_CONN_PARAMS_EVT_FAILED; |
rgrover1 | 371:8f7d2137727a | 202 | m_conn_params_config.evt_handler(&evt); |
rgrover1 | 371:8f7d2137727a | 203 | } |
rgrover1 | 371:8f7d2137727a | 204 | } |
rgrover1 | 371:8f7d2137727a | 205 | else |
rgrover1 | 371:8f7d2137727a | 206 | { |
rgrover1 | 371:8f7d2137727a | 207 | if (m_update_count == 0) |
rgrover1 | 371:8f7d2137727a | 208 | { |
rgrover1 | 371:8f7d2137727a | 209 | // First connection parameter update |
rgrover1 | 371:8f7d2137727a | 210 | timeout_ticks = m_conn_params_config.first_conn_params_update_delay; |
rgrover1 | 371:8f7d2137727a | 211 | } |
rgrover1 | 371:8f7d2137727a | 212 | else |
rgrover1 | 371:8f7d2137727a | 213 | { |
rgrover1 | 371:8f7d2137727a | 214 | timeout_ticks = m_conn_params_config.next_conn_params_update_delay; |
rgrover1 | 371:8f7d2137727a | 215 | } |
rgrover1 | 371:8f7d2137727a | 216 | |
rgrover1 | 371:8f7d2137727a | 217 | #ifdef USE_APP_TIMER |
rgrover1 | 371:8f7d2137727a | 218 | err_code = app_timer_start(m_conn_params_timer_id, timeout_ticks, NULL); |
rgrover1 | 371:8f7d2137727a | 219 | if ((err_code != NRF_SUCCESS) && (m_conn_params_config.error_handler != NULL)) |
rgrover1 | 371:8f7d2137727a | 220 | { |
rgrover1 | 371:8f7d2137727a | 221 | m_conn_params_config.error_handler(err_code); |
rgrover1 | 371:8f7d2137727a | 222 | } |
rgrover1 | 371:8f7d2137727a | 223 | #else |
rgrover1 | 371:8f7d2137727a | 224 | m_conn_params_timer.attach(update_timeout_handler, timeout_ticks / 32768); |
rgrover1 | 371:8f7d2137727a | 225 | #endif |
rgrover1 | 371:8f7d2137727a | 226 | } |
rgrover1 | 371:8f7d2137727a | 227 | } |
rgrover1 | 371:8f7d2137727a | 228 | else |
rgrover1 | 371:8f7d2137727a | 229 | { |
rgrover1 | 371:8f7d2137727a | 230 | // Notify the application that the procedure has succeded |
rgrover1 | 371:8f7d2137727a | 231 | if (m_conn_params_config.evt_handler != NULL) |
rgrover1 | 371:8f7d2137727a | 232 | { |
rgrover1 | 371:8f7d2137727a | 233 | ble_conn_params_evt_t evt; |
rgrover1 | 371:8f7d2137727a | 234 | |
rgrover1 | 371:8f7d2137727a | 235 | evt.evt_type = BLE_CONN_PARAMS_EVT_SUCCEEDED; |
rgrover1 | 371:8f7d2137727a | 236 | m_conn_params_config.evt_handler(&evt); |
rgrover1 | 371:8f7d2137727a | 237 | } |
rgrover1 | 371:8f7d2137727a | 238 | } |
rgrover1 | 371:8f7d2137727a | 239 | m_change_param = false; |
rgrover1 | 371:8f7d2137727a | 240 | } |
rgrover1 | 371:8f7d2137727a | 241 | |
rgrover1 | 371:8f7d2137727a | 242 | |
rgrover1 | 371:8f7d2137727a | 243 | static void on_connect(ble_evt_t * p_ble_evt) |
rgrover1 | 371:8f7d2137727a | 244 | { |
rgrover1 | 371:8f7d2137727a | 245 | // Save connection parameters |
rgrover1 | 371:8f7d2137727a | 246 | m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle; |
rgrover1 | 371:8f7d2137727a | 247 | m_current_conn_params = p_ble_evt->evt.gap_evt.params.connected.conn_params; |
rgrover1 | 371:8f7d2137727a | 248 | m_update_count = 0; // Connection parameter negotiation should re-start every connection |
rgrover1 | 371:8f7d2137727a | 249 | |
rgrover1 | 371:8f7d2137727a | 250 | // Check if we shall handle negotiation on connect |
rgrover1 | 371:8f7d2137727a | 251 | if (m_conn_params_config.start_on_notify_cccd_handle == BLE_GATT_HANDLE_INVALID) |
rgrover1 | 371:8f7d2137727a | 252 | { |
rgrover1 | 371:8f7d2137727a | 253 | conn_params_negotiation(); |
rgrover1 | 371:8f7d2137727a | 254 | } |
rgrover1 | 371:8f7d2137727a | 255 | } |
rgrover1 | 371:8f7d2137727a | 256 | |
rgrover1 | 371:8f7d2137727a | 257 | |
rgrover1 | 371:8f7d2137727a | 258 | static void on_disconnect(ble_evt_t * p_ble_evt) |
rgrover1 | 371:8f7d2137727a | 259 | { |
rgrover1 | 371:8f7d2137727a | 260 | #ifdef USE_APP_TIMER |
rgrover1 | 371:8f7d2137727a | 261 | uint32_t err_code; |
rgrover1 | 371:8f7d2137727a | 262 | #endif |
rgrover1 | 371:8f7d2137727a | 263 | |
rgrover1 | 371:8f7d2137727a | 264 | m_conn_handle = BLE_CONN_HANDLE_INVALID; |
rgrover1 | 371:8f7d2137727a | 265 | |
rgrover1 | 371:8f7d2137727a | 266 | // Stop timer if running |
rgrover1 | 371:8f7d2137727a | 267 | m_update_count = 0; // Connection parameters updates should happen during every connection |
rgrover1 | 371:8f7d2137727a | 268 | |
rgrover1 | 371:8f7d2137727a | 269 | #ifdef USE_APP_TIMER |
rgrover1 | 371:8f7d2137727a | 270 | err_code = app_timer_stop(m_conn_params_timer_id); |
rgrover1 | 371:8f7d2137727a | 271 | if ((err_code != NRF_SUCCESS) && (m_conn_params_config.error_handler != NULL)) |
rgrover1 | 371:8f7d2137727a | 272 | { |
rgrover1 | 371:8f7d2137727a | 273 | m_conn_params_config.error_handler(err_code); |
rgrover1 | 371:8f7d2137727a | 274 | } |
rgrover1 | 371:8f7d2137727a | 275 | #else |
rgrover1 | 371:8f7d2137727a | 276 | m_conn_params_timer.detach(); |
rgrover1 | 371:8f7d2137727a | 277 | #endif |
rgrover1 | 371:8f7d2137727a | 278 | } |
rgrover1 | 371:8f7d2137727a | 279 | |
rgrover1 | 371:8f7d2137727a | 280 | |
rgrover1 | 371:8f7d2137727a | 281 | static void on_write(ble_evt_t * p_ble_evt) |
rgrover1 | 371:8f7d2137727a | 282 | { |
rgrover1 | 371:8f7d2137727a | 283 | ble_gatts_evt_write_t * p_evt_write = &p_ble_evt->evt.gatts_evt.params.write; |
rgrover1 | 371:8f7d2137727a | 284 | |
rgrover1 | 371:8f7d2137727a | 285 | // Check if this the correct CCCD |
rgrover1 | 371:8f7d2137727a | 286 | if ( |
rgrover1 | 371:8f7d2137727a | 287 | (p_evt_write->handle == m_conn_params_config.start_on_notify_cccd_handle) |
rgrover1 | 371:8f7d2137727a | 288 | && |
rgrover1 | 371:8f7d2137727a | 289 | (p_evt_write->len == 2) |
rgrover1 | 371:8f7d2137727a | 290 | ) |
rgrover1 | 371:8f7d2137727a | 291 | { |
rgrover1 | 371:8f7d2137727a | 292 | // Check if this is a 'start notification' |
rgrover1 | 371:8f7d2137727a | 293 | if (ble_srv_is_notification_enabled(p_evt_write->data)) |
rgrover1 | 371:8f7d2137727a | 294 | { |
rgrover1 | 371:8f7d2137727a | 295 | // Do connection parameter negotiation if necessary |
rgrover1 | 371:8f7d2137727a | 296 | conn_params_negotiation(); |
rgrover1 | 371:8f7d2137727a | 297 | } |
rgrover1 | 371:8f7d2137727a | 298 | else |
rgrover1 | 371:8f7d2137727a | 299 | { |
rgrover1 | 371:8f7d2137727a | 300 | #ifdef USE_APP_TIMER |
rgrover1 | 371:8f7d2137727a | 301 | uint32_t err_code; |
rgrover1 | 371:8f7d2137727a | 302 | |
rgrover1 | 371:8f7d2137727a | 303 | // Stop timer if running |
rgrover1 | 371:8f7d2137727a | 304 | err_code = app_timer_stop(m_conn_params_timer_id); |
rgrover1 | 371:8f7d2137727a | 305 | if ((err_code != NRF_SUCCESS) && (m_conn_params_config.error_handler != NULL)) |
rgrover1 | 371:8f7d2137727a | 306 | { |
rgrover1 | 371:8f7d2137727a | 307 | m_conn_params_config.error_handler(err_code); |
rgrover1 | 371:8f7d2137727a | 308 | } |
rgrover1 | 371:8f7d2137727a | 309 | #else /* #if !USE_APP_TIMER */ |
rgrover1 | 371:8f7d2137727a | 310 | m_conn_params_timer.detach(); |
rgrover1 | 371:8f7d2137727a | 311 | #endif /* #if !USE_APP_TIMER */ |
rgrover1 | 371:8f7d2137727a | 312 | } |
rgrover1 | 371:8f7d2137727a | 313 | } |
rgrover1 | 371:8f7d2137727a | 314 | } |
rgrover1 | 371:8f7d2137727a | 315 | |
rgrover1 | 371:8f7d2137727a | 316 | |
rgrover1 | 371:8f7d2137727a | 317 | static void on_conn_params_update(ble_evt_t * p_ble_evt) |
rgrover1 | 371:8f7d2137727a | 318 | { |
rgrover1 | 371:8f7d2137727a | 319 | // Copy the parameters |
rgrover1 | 371:8f7d2137727a | 320 | m_current_conn_params = p_ble_evt->evt.gap_evt.params.conn_param_update.conn_params; |
rgrover1 | 371:8f7d2137727a | 321 | |
rgrover1 | 371:8f7d2137727a | 322 | conn_params_negotiation(); |
rgrover1 | 371:8f7d2137727a | 323 | } |
rgrover1 | 371:8f7d2137727a | 324 | |
rgrover1 | 371:8f7d2137727a | 325 | |
rgrover1 | 371:8f7d2137727a | 326 | void ble_conn_params_on_ble_evt(ble_evt_t * p_ble_evt) |
rgrover1 | 371:8f7d2137727a | 327 | { |
rgrover1 | 371:8f7d2137727a | 328 | switch (p_ble_evt->header.evt_id) |
rgrover1 | 371:8f7d2137727a | 329 | { |
rgrover1 | 371:8f7d2137727a | 330 | case BLE_GAP_EVT_CONNECTED: |
rgrover1 | 371:8f7d2137727a | 331 | on_connect(p_ble_evt); |
rgrover1 | 371:8f7d2137727a | 332 | break; |
rgrover1 | 371:8f7d2137727a | 333 | |
rgrover1 | 371:8f7d2137727a | 334 | case BLE_GAP_EVT_DISCONNECTED: |
rgrover1 | 371:8f7d2137727a | 335 | on_disconnect(p_ble_evt); |
rgrover1 | 371:8f7d2137727a | 336 | break; |
rgrover1 | 371:8f7d2137727a | 337 | |
rgrover1 | 371:8f7d2137727a | 338 | case BLE_GATTS_EVT_WRITE: |
rgrover1 | 371:8f7d2137727a | 339 | on_write(p_ble_evt); |
rgrover1 | 371:8f7d2137727a | 340 | break; |
rgrover1 | 371:8f7d2137727a | 341 | |
rgrover1 | 371:8f7d2137727a | 342 | case BLE_GAP_EVT_CONN_PARAM_UPDATE: |
rgrover1 | 371:8f7d2137727a | 343 | on_conn_params_update(p_ble_evt); |
rgrover1 | 371:8f7d2137727a | 344 | break; |
rgrover1 | 371:8f7d2137727a | 345 | |
rgrover1 | 371:8f7d2137727a | 346 | default: |
rgrover1 | 371:8f7d2137727a | 347 | // No implementation needed. |
rgrover1 | 371:8f7d2137727a | 348 | break; |
rgrover1 | 371:8f7d2137727a | 349 | } |
rgrover1 | 371:8f7d2137727a | 350 | } |
rgrover1 | 371:8f7d2137727a | 351 | |
rgrover1 | 371:8f7d2137727a | 352 | uint32_t ble_conn_params_change_conn_params(ble_gap_conn_params_t *new_params) |
rgrover1 | 371:8f7d2137727a | 353 | { |
rgrover1 | 371:8f7d2137727a | 354 | uint32_t err_code; |
rgrover1 | 371:8f7d2137727a | 355 | |
rgrover1 | 371:8f7d2137727a | 356 | m_preferred_conn_params = *new_params; |
rgrover1 | 371:8f7d2137727a | 357 | // Set the connection params in stack |
rgrover1 | 371:8f7d2137727a | 358 | err_code = sd_ble_gap_ppcp_set(&m_preferred_conn_params); |
rgrover1 | 371:8f7d2137727a | 359 | if (err_code == NRF_SUCCESS) |
rgrover1 | 371:8f7d2137727a | 360 | { |
rgrover1 | 371:8f7d2137727a | 361 | if (!is_conn_params_ok(&m_current_conn_params)) |
rgrover1 | 371:8f7d2137727a | 362 | { |
rgrover1 | 371:8f7d2137727a | 363 | m_change_param = true; |
rgrover1 | 371:8f7d2137727a | 364 | err_code = sd_ble_gap_conn_param_update(m_conn_handle, &m_preferred_conn_params); |
rgrover1 | 371:8f7d2137727a | 365 | m_update_count = 1; |
rgrover1 | 371:8f7d2137727a | 366 | } |
rgrover1 | 371:8f7d2137727a | 367 | else |
rgrover1 | 371:8f7d2137727a | 368 | { |
rgrover1 | 371:8f7d2137727a | 369 | // Notify the application that the procedure has succeded |
rgrover1 | 371:8f7d2137727a | 370 | if (m_conn_params_config.evt_handler != NULL) |
rgrover1 | 371:8f7d2137727a | 371 | { |
rgrover1 | 371:8f7d2137727a | 372 | ble_conn_params_evt_t evt; |
rgrover1 | 371:8f7d2137727a | 373 | |
rgrover1 | 371:8f7d2137727a | 374 | evt.evt_type = BLE_CONN_PARAMS_EVT_SUCCEEDED; |
rgrover1 | 371:8f7d2137727a | 375 | m_conn_params_config.evt_handler(&evt); |
rgrover1 | 371:8f7d2137727a | 376 | } |
rgrover1 | 371:8f7d2137727a | 377 | err_code = NRF_SUCCESS; |
rgrover1 | 371:8f7d2137727a | 378 | } |
rgrover1 | 371:8f7d2137727a | 379 | } |
rgrover1 | 371:8f7d2137727a | 380 | return err_code; |
rgrover1 | 371:8f7d2137727a | 381 | } |