Thomas Butler / nrf51-sdk

cvb

Fork of nrf51-sdk by Lancaster University

source/nordic_sdk/components/ble/common/ble_conn_state.c@0:bc2961fa1ef0, 2016-04-06 (annotated)

Committer:
Jonathan Austin
Date:
Wed Apr 06 23:55:04 2016 +0100
Revision:
0:bc2961fa1ef0
Synchronized with git rev 90647e3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jonathan Austin 0:bc2961fa1ef0 1 /*
Jonathan Austin 0:bc2961fa1ef0 2 * Copyright (c) Nordic Semiconductor ASA
Jonathan Austin 0:bc2961fa1ef0 3 * All rights reserved.
Jonathan Austin 0:bc2961fa1ef0 4 *
Jonathan Austin 0:bc2961fa1ef0 5 * Redistribution and use in source and binary forms, with or without modification,
Jonathan Austin 0:bc2961fa1ef0 6 * are permitted provided that the following conditions are met:
Jonathan Austin 0:bc2961fa1ef0 7 *
Jonathan Austin 0:bc2961fa1ef0 8 * 1. Redistributions of source code must retain the above copyright notice, this
Jonathan Austin 0:bc2961fa1ef0 9 * list of conditions and the following disclaimer.
Jonathan Austin 0:bc2961fa1ef0 10 *
Jonathan Austin 0:bc2961fa1ef0 11 * 2. Redistributions in binary form must reproduce the above copyright notice, this
Jonathan Austin 0:bc2961fa1ef0 12 * list of conditions and the following disclaimer in the documentation and/or
Jonathan Austin 0:bc2961fa1ef0 13 * other materials provided with the distribution.
Jonathan Austin 0:bc2961fa1ef0 14 *
Jonathan Austin 0:bc2961fa1ef0 15 * 3. Neither the name of Nordic Semiconductor ASA nor the names of other
Jonathan Austin 0:bc2961fa1ef0 16 * contributors to this software may be used to endorse or promote products
Jonathan Austin 0:bc2961fa1ef0 17 * derived from this software without specific prior written permission.
Jonathan Austin 0:bc2961fa1ef0 18 *
Jonathan Austin 0:bc2961fa1ef0 19 *
Jonathan Austin 0:bc2961fa1ef0 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
Jonathan Austin 0:bc2961fa1ef0 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
Jonathan Austin 0:bc2961fa1ef0 22 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Jonathan Austin 0:bc2961fa1ef0 23 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
Jonathan Austin 0:bc2961fa1ef0 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
Jonathan Austin 0:bc2961fa1ef0 25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
Jonathan Austin 0:bc2961fa1ef0 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
Jonathan Austin 0:bc2961fa1ef0 27 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Jonathan Austin 0:bc2961fa1ef0 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Jonathan Austin 0:bc2961fa1ef0 29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Jonathan Austin 0:bc2961fa1ef0 30 *
Jonathan Austin 0:bc2961fa1ef0 31 */
Jonathan Austin 0:bc2961fa1ef0 32
Jonathan Austin 0:bc2961fa1ef0 33 #include "ble_conn_state.h"
Jonathan Austin 0:bc2961fa1ef0 34 #include <stdbool.h>
Jonathan Austin 0:bc2961fa1ef0 35 #include <stdint.h>
Jonathan Austin 0:bc2961fa1ef0 36 #include <string.h>
Jonathan Austin 0:bc2961fa1ef0 37 #include "ble.h"
Jonathan Austin 0:bc2961fa1ef0 38 #include "sdk_mapped_flags.h"
Jonathan Austin 0:bc2961fa1ef0 39 #include "app_error.h"
Jonathan Austin 0:bc2961fa1ef0 40
Jonathan Austin 0:bc2961fa1ef0 41
Jonathan Austin 0:bc2961fa1ef0 42 #if defined(__CC_ARM)
Jonathan Austin 0:bc2961fa1ef0 43 #pragma push
Jonathan Austin 0:bc2961fa1ef0 44 #pragma anon_unions
Jonathan Austin 0:bc2961fa1ef0 45 #elif defined(__ICCARM__)
Jonathan Austin 0:bc2961fa1ef0 46 #pragma language=extended
Jonathan Austin 0:bc2961fa1ef0 47 #elif defined(__GNUC__)
Jonathan Austin 0:bc2961fa1ef0 48 /* anonymous unions are enabled by default */
Jonathan Austin 0:bc2961fa1ef0 49 #endif
Jonathan Austin 0:bc2961fa1ef0 50
Jonathan Austin 0:bc2961fa1ef0 51
Jonathan Austin 0:bc2961fa1ef0 52 #define BLE_CONN_STATE_N_DEFAULT_FLAGS 5 /**< The number of flags kept for each connection, excluding user flags. */
Jonathan Austin 0:bc2961fa1ef0 53 #define BLE_CONN_STATE_N_FLAGS (BLE_CONN_STATE_N_DEFAULT_FLAGS + BLE_CONN_STATE_N_USER_FLAGS) /**< The number of flags kept for each connection, including user flags. */
Jonathan Austin 0:bc2961fa1ef0 54
Jonathan Austin 0:bc2961fa1ef0 55
Jonathan Austin 0:bc2961fa1ef0 56 /**@brief Structure containing all the flag collections maintained by the Connection State module.
Jonathan Austin 0:bc2961fa1ef0 57 */
Jonathan Austin 0:bc2961fa1ef0 58 typedef struct
Jonathan Austin 0:bc2961fa1ef0 59 {
Jonathan Austin 0:bc2961fa1ef0 60 sdk_mapped_flags_t valid_flags; /**< Flags indicating which connection handles are valid. */
Jonathan Austin 0:bc2961fa1ef0 61 sdk_mapped_flags_t connected_flags; /**< Flags indicating which connections are connected, since disconnected connection handles will not immediately be invalidated. */
Jonathan Austin 0:bc2961fa1ef0 62 sdk_mapped_flags_t central_flags; /**< Flags indicating in which connections the local device is the central. */
Jonathan Austin 0:bc2961fa1ef0 63 sdk_mapped_flags_t encrypted_flags; /**< Flags indicating which connections are encrypted. */
Jonathan Austin 0:bc2961fa1ef0 64 sdk_mapped_flags_t mitm_protected_flags; /**< Flags indicating which connections have encryption with protection from man-in-the-middle attacks. */
Jonathan Austin 0:bc2961fa1ef0 65 sdk_mapped_flags_t user_flags[BLE_CONN_STATE_N_USER_FLAGS]; /**< Flags that can be reserved by the user. The flags will be cleared when a connection is invalidated, otherwise, the user is wholly responsible for the flag states. */
Jonathan Austin 0:bc2961fa1ef0 66 } ble_conn_state_flag_collections_t;
Jonathan Austin 0:bc2961fa1ef0 67
Jonathan Austin 0:bc2961fa1ef0 68
Jonathan Austin 0:bc2961fa1ef0 69 /**@brief Structure containing the internal state of the Connection State module.
Jonathan Austin 0:bc2961fa1ef0 70 */
Jonathan Austin 0:bc2961fa1ef0 71 typedef struct
Jonathan Austin 0:bc2961fa1ef0 72 {
Jonathan Austin 0:bc2961fa1ef0 73 uint16_t acquired_flags; /**< Bitmap for keeping track of which user flags have been acquired. */
Jonathan Austin 0:bc2961fa1ef0 74 uint16_t valid_conn_handles[SDK_MAPPED_FLAGS_N_KEYS]; /**< List of connection handles used as keys for the sdk_mapped_flags module. */
Jonathan Austin 0:bc2961fa1ef0 75 union
Jonathan Austin 0:bc2961fa1ef0 76 {
Jonathan Austin 0:bc2961fa1ef0 77 ble_conn_state_flag_collections_t flags; /**< Flag collections kept by the Connection State module. */
Jonathan Austin 0:bc2961fa1ef0 78 sdk_mapped_flags_t flag_array[BLE_CONN_STATE_N_FLAGS]; /**< Flag collections as array to allow use of @ref sdk_mapped_flags_bulk_update_by_key() when setting all flags. */
Jonathan Austin 0:bc2961fa1ef0 79 };
Jonathan Austin 0:bc2961fa1ef0 80 } ble_conn_state_t;
Jonathan Austin 0:bc2961fa1ef0 81
Jonathan Austin 0:bc2961fa1ef0 82
Jonathan Austin 0:bc2961fa1ef0 83 #if defined(__CC_ARM)
Jonathan Austin 0:bc2961fa1ef0 84 #pragma pop
Jonathan Austin 0:bc2961fa1ef0 85 #elif defined(__ICCARM__)
Jonathan Austin 0:bc2961fa1ef0 86 /* leave anonymous unions enabled */
Jonathan Austin 0:bc2961fa1ef0 87 #elif defined(__GNUC__)
Jonathan Austin 0:bc2961fa1ef0 88 /* anonymous unions are enabled by default */
Jonathan Austin 0:bc2961fa1ef0 89 #endif
Jonathan Austin 0:bc2961fa1ef0 90
Jonathan Austin 0:bc2961fa1ef0 91
Jonathan Austin 0:bc2961fa1ef0 92 static ble_conn_state_t m_bcs = {0}; /**< Instantiation of the internal state. */
Jonathan Austin 0:bc2961fa1ef0 93
Jonathan Austin 0:bc2961fa1ef0 94
Jonathan Austin 0:bc2961fa1ef0 95 /**@brief Function for resetting all internal memory to the values it had at initialization.
Jonathan Austin 0:bc2961fa1ef0 96 */
Jonathan Austin 0:bc2961fa1ef0 97 void bcs_internal_state_reset(void)
Jonathan Austin 0:bc2961fa1ef0 98 {
Jonathan Austin 0:bc2961fa1ef0 99 memset( &m_bcs, 0, sizeof(ble_conn_state_t) );
Jonathan Austin 0:bc2961fa1ef0 100 }
Jonathan Austin 0:bc2961fa1ef0 101
Jonathan Austin 0:bc2961fa1ef0 102
Jonathan Austin 0:bc2961fa1ef0 103 /**@brief Function for activating a connection record.
Jonathan Austin 0:bc2961fa1ef0 104 *
Jonathan Austin 0:bc2961fa1ef0 105 * @param p_record The record to activate.
Jonathan Austin 0:bc2961fa1ef0 106 * @param conn_handle The connection handle to copy into the record.
Jonathan Austin 0:bc2961fa1ef0 107 * @param role The role of the connection.
Jonathan Austin 0:bc2961fa1ef0 108 *
Jonathan Austin 0:bc2961fa1ef0 109 * @return whether the record was activated successfully.
Jonathan Austin 0:bc2961fa1ef0 110 */
Jonathan Austin 0:bc2961fa1ef0 111 static bool record_activate(uint16_t conn_handle)
Jonathan Austin 0:bc2961fa1ef0 112 {
Jonathan Austin 0:bc2961fa1ef0 113 uint16_t available_index = sdk_mapped_flags_first_key_index_get(~m_bcs.flags.valid_flags);
Jonathan Austin 0:bc2961fa1ef0 114
Jonathan Austin 0:bc2961fa1ef0 115 if (available_index != SDK_MAPPED_FLAGS_INVALID_INDEX)
Jonathan Austin 0:bc2961fa1ef0 116 {
Jonathan Austin 0:bc2961fa1ef0 117 m_bcs.valid_conn_handles[available_index] = conn_handle;
Jonathan Austin 0:bc2961fa1ef0 118 sdk_mapped_flags_update_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 119 &m_bcs.flags.connected_flags,
Jonathan Austin 0:bc2961fa1ef0 120 conn_handle,
Jonathan Austin 0:bc2961fa1ef0 121 1);
Jonathan Austin 0:bc2961fa1ef0 122 sdk_mapped_flags_update_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 123 &m_bcs.flags.valid_flags,
Jonathan Austin 0:bc2961fa1ef0 124 conn_handle,
Jonathan Austin 0:bc2961fa1ef0 125 1);
Jonathan Austin 0:bc2961fa1ef0 126
Jonathan Austin 0:bc2961fa1ef0 127 return true;
Jonathan Austin 0:bc2961fa1ef0 128 }
Jonathan Austin 0:bc2961fa1ef0 129
Jonathan Austin 0:bc2961fa1ef0 130 return false;
Jonathan Austin 0:bc2961fa1ef0 131 }
Jonathan Austin 0:bc2961fa1ef0 132
Jonathan Austin 0:bc2961fa1ef0 133
Jonathan Austin 0:bc2961fa1ef0 134 /**@brief Function for marking a connection record as invalid and resetting the values.
Jonathan Austin 0:bc2961fa1ef0 135 *
Jonathan Austin 0:bc2961fa1ef0 136 * @param p_record The record to invalidate.
Jonathan Austin 0:bc2961fa1ef0 137 */
Jonathan Austin 0:bc2961fa1ef0 138 static void record_invalidate(uint16_t conn_handle)
Jonathan Austin 0:bc2961fa1ef0 139 {
Jonathan Austin 0:bc2961fa1ef0 140 sdk_mapped_flags_bulk_update_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 141 m_bcs.flag_array,
Jonathan Austin 0:bc2961fa1ef0 142 BLE_CONN_STATE_N_FLAGS,
Jonathan Austin 0:bc2961fa1ef0 143 conn_handle,
Jonathan Austin 0:bc2961fa1ef0 144 0);
Jonathan Austin 0:bc2961fa1ef0 145 }
Jonathan Austin 0:bc2961fa1ef0 146
Jonathan Austin 0:bc2961fa1ef0 147
Jonathan Austin 0:bc2961fa1ef0 148 /**@brief Function for marking a connection as disconnected. See @ref BLE_CONN_STATUS_DISCONNECTED.
Jonathan Austin 0:bc2961fa1ef0 149 *
Jonathan Austin 0:bc2961fa1ef0 150 * @param p_record The record of the connection to set as disconnected.
Jonathan Austin 0:bc2961fa1ef0 151 */
Jonathan Austin 0:bc2961fa1ef0 152 static void record_set_disconnected(uint16_t conn_handle)
Jonathan Austin 0:bc2961fa1ef0 153 {
Jonathan Austin 0:bc2961fa1ef0 154 sdk_mapped_flags_update_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 155 &m_bcs.flags.connected_flags,
Jonathan Austin 0:bc2961fa1ef0 156 conn_handle,
Jonathan Austin 0:bc2961fa1ef0 157 0);
Jonathan Austin 0:bc2961fa1ef0 158 }
Jonathan Austin 0:bc2961fa1ef0 159
Jonathan Austin 0:bc2961fa1ef0 160
Jonathan Austin 0:bc2961fa1ef0 161 /**@brief Function for invalidating records with a @ref BLE_CONN_STATUS_DISCONNECTED
Jonathan Austin 0:bc2961fa1ef0 162 * connection status
Jonathan Austin 0:bc2961fa1ef0 163 */
Jonathan Austin 0:bc2961fa1ef0 164 static void record_purge_disconnected()
Jonathan Austin 0:bc2961fa1ef0 165 {
Jonathan Austin 0:bc2961fa1ef0 166 sdk_mapped_flags_key_list_t disconnected_list;
Jonathan Austin 0:bc2961fa1ef0 167
Jonathan Austin 0:bc2961fa1ef0 168 disconnected_list = sdk_mapped_flags_key_list_get(
Jonathan Austin 0:bc2961fa1ef0 169 m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 170 (~m_bcs.flags.connected_flags) & (m_bcs.flags.valid_flags));
Jonathan Austin 0:bc2961fa1ef0 171
Jonathan Austin 0:bc2961fa1ef0 172 for (int i = 0; i < disconnected_list.len; i++)
Jonathan Austin 0:bc2961fa1ef0 173 {
Jonathan Austin 0:bc2961fa1ef0 174 record_invalidate(disconnected_list.flag_keys[i]);
Jonathan Austin 0:bc2961fa1ef0 175 }
Jonathan Austin 0:bc2961fa1ef0 176 }
Jonathan Austin 0:bc2961fa1ef0 177
Jonathan Austin 0:bc2961fa1ef0 178
Jonathan Austin 0:bc2961fa1ef0 179 /**@brief Function for checking if a user flag has been acquired.
Jonathan Austin 0:bc2961fa1ef0 180 *
Jonathan Austin 0:bc2961fa1ef0 181 * @param[in] flag_id Which flag to check.
Jonathan Austin 0:bc2961fa1ef0 182 *
Jonathan Austin 0:bc2961fa1ef0 183 * @return Whether the flag has been acquired.
Jonathan Austin 0:bc2961fa1ef0 184 */
Jonathan Austin 0:bc2961fa1ef0 185 static bool user_flag_is_acquired(ble_conn_state_user_flag_id_t flag_id)
Jonathan Austin 0:bc2961fa1ef0 186 {
Jonathan Austin 0:bc2961fa1ef0 187 return ((m_bcs.acquired_flags & (1 << flag_id)) != 0);
Jonathan Austin 0:bc2961fa1ef0 188 }
Jonathan Austin 0:bc2961fa1ef0 189
Jonathan Austin 0:bc2961fa1ef0 190
Jonathan Austin 0:bc2961fa1ef0 191 /**@brief Function for marking a user flag as acquired.
Jonathan Austin 0:bc2961fa1ef0 192 *
Jonathan Austin 0:bc2961fa1ef0 193 * @param[in] flag_id Which flag to mark.
Jonathan Austin 0:bc2961fa1ef0 194 */
Jonathan Austin 0:bc2961fa1ef0 195 static void user_flag_acquire(ble_conn_state_user_flag_id_t flag_id)
Jonathan Austin 0:bc2961fa1ef0 196 {
Jonathan Austin 0:bc2961fa1ef0 197 m_bcs.acquired_flags |= (1 << flag_id);
Jonathan Austin 0:bc2961fa1ef0 198 }
Jonathan Austin 0:bc2961fa1ef0 199
Jonathan Austin 0:bc2961fa1ef0 200
Jonathan Austin 0:bc2961fa1ef0 201 void ble_conn_state_init(void)
Jonathan Austin 0:bc2961fa1ef0 202 {
Jonathan Austin 0:bc2961fa1ef0 203 bcs_internal_state_reset();
Jonathan Austin 0:bc2961fa1ef0 204 }
Jonathan Austin 0:bc2961fa1ef0 205
Jonathan Austin 0:bc2961fa1ef0 206
Jonathan Austin 0:bc2961fa1ef0 207 void ble_conn_state_on_ble_evt(ble_evt_t * p_ble_evt)
Jonathan Austin 0:bc2961fa1ef0 208 {
Jonathan Austin 0:bc2961fa1ef0 209 switch (p_ble_evt->header.evt_id)
Jonathan Austin 0:bc2961fa1ef0 210 {
Jonathan Austin 0:bc2961fa1ef0 211 case BLE_GAP_EVT_CONNECTED:
Jonathan Austin 0:bc2961fa1ef0 212 record_purge_disconnected();
Jonathan Austin 0:bc2961fa1ef0 213
Jonathan Austin 0:bc2961fa1ef0 214 if ( !record_activate(p_ble_evt->evt.gap_evt.conn_handle) )
Jonathan Austin 0:bc2961fa1ef0 215 {
Jonathan Austin 0:bc2961fa1ef0 216 // No more records available. Should not happen.
Jonathan Austin 0:bc2961fa1ef0 217 APP_ERROR_HANDLER(NRF_ERROR_NO_MEM);
Jonathan Austin 0:bc2961fa1ef0 218 }
Jonathan Austin 0:bc2961fa1ef0 219 else
Jonathan Austin 0:bc2961fa1ef0 220 {
Jonathan Austin 0:bc2961fa1ef0 221 #if defined(TARGET_MCU_NRF51_16K_S110) || defined(TARGET_MCU_NRF51_32K_S110)
Jonathan Austin 0:bc2961fa1ef0 222 bool is_central = false;
Jonathan Austin 0:bc2961fa1ef0 223 #elif defined(TARGET_MCU_NRF51_16K_S120) || defined(TARGET_MCU_NRF51_32K_S120)
Jonathan Austin 0:bc2961fa1ef0 224 bool is_central = true;
Jonathan Austin 0:bc2961fa1ef0 225 #else
Jonathan Austin 0:bc2961fa1ef0 226 bool is_central =
Jonathan Austin 0:bc2961fa1ef0 227 (p_ble_evt->evt.gap_evt.params.connected.role == BLE_GAP_ROLE_CENTRAL);
Jonathan Austin 0:bc2961fa1ef0 228 #endif
Jonathan Austin 0:bc2961fa1ef0 229
Jonathan Austin 0:bc2961fa1ef0 230 sdk_mapped_flags_update_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 231 &m_bcs.flags.central_flags,
Jonathan Austin 0:bc2961fa1ef0 232 p_ble_evt->evt.gap_evt.conn_handle,
Jonathan Austin 0:bc2961fa1ef0 233 is_central);
Jonathan Austin 0:bc2961fa1ef0 234 }
Jonathan Austin 0:bc2961fa1ef0 235
Jonathan Austin 0:bc2961fa1ef0 236 break;
Jonathan Austin 0:bc2961fa1ef0 237
Jonathan Austin 0:bc2961fa1ef0 238 case BLE_GAP_EVT_DISCONNECTED:
Jonathan Austin 0:bc2961fa1ef0 239 record_set_disconnected(p_ble_evt->evt.gap_evt.conn_handle);
Jonathan Austin 0:bc2961fa1ef0 240 break;
Jonathan Austin 0:bc2961fa1ef0 241
Jonathan Austin 0:bc2961fa1ef0 242 case BLE_GAP_EVT_CONN_SEC_UPDATE:
Jonathan Austin 0:bc2961fa1ef0 243 sdk_mapped_flags_update_by_key(
Jonathan Austin 0:bc2961fa1ef0 244 m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 245 &m_bcs.flags.encrypted_flags,
Jonathan Austin 0:bc2961fa1ef0 246 p_ble_evt->evt.gap_evt.conn_handle,
Jonathan Austin 0:bc2961fa1ef0 247 (p_ble_evt->evt.gap_evt.params.conn_sec_update.conn_sec.sec_mode.lv > 1));
Jonathan Austin 0:bc2961fa1ef0 248 sdk_mapped_flags_update_by_key(
Jonathan Austin 0:bc2961fa1ef0 249 m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 250 &m_bcs.flags.mitm_protected_flags,
Jonathan Austin 0:bc2961fa1ef0 251 p_ble_evt->evt.gap_evt.conn_handle,
Jonathan Austin 0:bc2961fa1ef0 252 (p_ble_evt->evt.gap_evt.params.conn_sec_update.conn_sec.sec_mode.lv > 2));
Jonathan Austin 0:bc2961fa1ef0 253 break;
Jonathan Austin 0:bc2961fa1ef0 254 }
Jonathan Austin 0:bc2961fa1ef0 255 }
Jonathan Austin 0:bc2961fa1ef0 256
Jonathan Austin 0:bc2961fa1ef0 257
Jonathan Austin 0:bc2961fa1ef0 258 bool ble_conn_state_valid(uint16_t conn_handle)
Jonathan Austin 0:bc2961fa1ef0 259 {
Jonathan Austin 0:bc2961fa1ef0 260 return sdk_mapped_flags_get_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 261 m_bcs.flags.valid_flags,
Jonathan Austin 0:bc2961fa1ef0 262 conn_handle);
Jonathan Austin 0:bc2961fa1ef0 263 }
Jonathan Austin 0:bc2961fa1ef0 264
Jonathan Austin 0:bc2961fa1ef0 265
Jonathan Austin 0:bc2961fa1ef0 266 uint8_t ble_conn_state_role(uint16_t conn_handle)
Jonathan Austin 0:bc2961fa1ef0 267 {
Jonathan Austin 0:bc2961fa1ef0 268 uint8_t role = BLE_GAP_ROLE_INVALID;
Jonathan Austin 0:bc2961fa1ef0 269
Jonathan Austin 0:bc2961fa1ef0 270 if ( sdk_mapped_flags_get_by_key(m_bcs.valid_conn_handles, m_bcs.flags.valid_flags, conn_handle) )
Jonathan Austin 0:bc2961fa1ef0 271 {
Jonathan Austin 0:bc2961fa1ef0 272 bool central = sdk_mapped_flags_get_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 273 m_bcs.flags.central_flags,
Jonathan Austin 0:bc2961fa1ef0 274 conn_handle);
Jonathan Austin 0:bc2961fa1ef0 275
Jonathan Austin 0:bc2961fa1ef0 276 role = central ? BLE_GAP_ROLE_CENTRAL : BLE_GAP_ROLE_PERIPH;
Jonathan Austin 0:bc2961fa1ef0 277 }
Jonathan Austin 0:bc2961fa1ef0 278
Jonathan Austin 0:bc2961fa1ef0 279 return role;
Jonathan Austin 0:bc2961fa1ef0 280 }
Jonathan Austin 0:bc2961fa1ef0 281
Jonathan Austin 0:bc2961fa1ef0 282
Jonathan Austin 0:bc2961fa1ef0 283 ble_conn_state_status_t ble_conn_state_status(uint16_t conn_handle)
Jonathan Austin 0:bc2961fa1ef0 284 {
Jonathan Austin 0:bc2961fa1ef0 285 ble_conn_state_status_t conn_status = BLE_CONN_STATUS_INVALID;
Jonathan Austin 0:bc2961fa1ef0 286 bool valid = sdk_mapped_flags_get_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 287 m_bcs.flags.valid_flags,
Jonathan Austin 0:bc2961fa1ef0 288 conn_handle);
Jonathan Austin 0:bc2961fa1ef0 289
Jonathan Austin 0:bc2961fa1ef0 290 if (valid)
Jonathan Austin 0:bc2961fa1ef0 291 {
Jonathan Austin 0:bc2961fa1ef0 292 bool connected = sdk_mapped_flags_get_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 293 m_bcs.flags.connected_flags,
Jonathan Austin 0:bc2961fa1ef0 294 conn_handle);
Jonathan Austin 0:bc2961fa1ef0 295
Jonathan Austin 0:bc2961fa1ef0 296 conn_status = connected ? BLE_CONN_STATUS_CONNECTED : BLE_CONN_STATUS_DISCONNECTED;
Jonathan Austin 0:bc2961fa1ef0 297 }
Jonathan Austin 0:bc2961fa1ef0 298
Jonathan Austin 0:bc2961fa1ef0 299 return conn_status;
Jonathan Austin 0:bc2961fa1ef0 300 }
Jonathan Austin 0:bc2961fa1ef0 301
Jonathan Austin 0:bc2961fa1ef0 302
Jonathan Austin 0:bc2961fa1ef0 303 bool ble_conn_state_encrypted(uint16_t conn_handle)
Jonathan Austin 0:bc2961fa1ef0 304 {
Jonathan Austin 0:bc2961fa1ef0 305 return sdk_mapped_flags_get_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 306 m_bcs.flags.encrypted_flags,
Jonathan Austin 0:bc2961fa1ef0 307 conn_handle);
Jonathan Austin 0:bc2961fa1ef0 308 }
Jonathan Austin 0:bc2961fa1ef0 309
Jonathan Austin 0:bc2961fa1ef0 310
Jonathan Austin 0:bc2961fa1ef0 311 bool ble_conn_state_mitm_protected(uint16_t conn_handle)
Jonathan Austin 0:bc2961fa1ef0 312 {
Jonathan Austin 0:bc2961fa1ef0 313 return sdk_mapped_flags_get_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 314 m_bcs.flags.mitm_protected_flags,
Jonathan Austin 0:bc2961fa1ef0 315 conn_handle);
Jonathan Austin 0:bc2961fa1ef0 316 }
Jonathan Austin 0:bc2961fa1ef0 317
Jonathan Austin 0:bc2961fa1ef0 318
Jonathan Austin 0:bc2961fa1ef0 319 uint32_t ble_conn_state_n_connections(void)
Jonathan Austin 0:bc2961fa1ef0 320 {
Jonathan Austin 0:bc2961fa1ef0 321 return sdk_mapped_flags_n_flags_set(m_bcs.flags.connected_flags);
Jonathan Austin 0:bc2961fa1ef0 322 }
Jonathan Austin 0:bc2961fa1ef0 323
Jonathan Austin 0:bc2961fa1ef0 324
Jonathan Austin 0:bc2961fa1ef0 325 uint32_t ble_conn_state_n_centrals(void)
Jonathan Austin 0:bc2961fa1ef0 326 {
Jonathan Austin 0:bc2961fa1ef0 327 return sdk_mapped_flags_n_flags_set((m_bcs.flags.central_flags) & (m_bcs.flags.connected_flags));
Jonathan Austin 0:bc2961fa1ef0 328 }
Jonathan Austin 0:bc2961fa1ef0 329
Jonathan Austin 0:bc2961fa1ef0 330
Jonathan Austin 0:bc2961fa1ef0 331 uint32_t ble_conn_state_n_peripherals(void)
Jonathan Austin 0:bc2961fa1ef0 332 {
Jonathan Austin 0:bc2961fa1ef0 333 return sdk_mapped_flags_n_flags_set((~m_bcs.flags.central_flags) & (m_bcs.flags.connected_flags));
Jonathan Austin 0:bc2961fa1ef0 334 }
Jonathan Austin 0:bc2961fa1ef0 335
Jonathan Austin 0:bc2961fa1ef0 336
Jonathan Austin 0:bc2961fa1ef0 337 sdk_mapped_flags_key_list_t ble_conn_state_conn_handles(void)
Jonathan Austin 0:bc2961fa1ef0 338 {
Jonathan Austin 0:bc2961fa1ef0 339 return sdk_mapped_flags_key_list_get(m_bcs.valid_conn_handles, m_bcs.flags.valid_flags);
Jonathan Austin 0:bc2961fa1ef0 340 }
Jonathan Austin 0:bc2961fa1ef0 341
Jonathan Austin 0:bc2961fa1ef0 342
Jonathan Austin 0:bc2961fa1ef0 343 sdk_mapped_flags_key_list_t ble_conn_state_central_handles(void)
Jonathan Austin 0:bc2961fa1ef0 344 {
Jonathan Austin 0:bc2961fa1ef0 345 return sdk_mapped_flags_key_list_get(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 346 (m_bcs.flags.central_flags) & (m_bcs.flags.connected_flags));
Jonathan Austin 0:bc2961fa1ef0 347 }
Jonathan Austin 0:bc2961fa1ef0 348
Jonathan Austin 0:bc2961fa1ef0 349
Jonathan Austin 0:bc2961fa1ef0 350 sdk_mapped_flags_key_list_t ble_conn_state_periph_handles(void)
Jonathan Austin 0:bc2961fa1ef0 351 {
Jonathan Austin 0:bc2961fa1ef0 352 return sdk_mapped_flags_key_list_get(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 353 (~m_bcs.flags.central_flags) & (m_bcs.flags.connected_flags));
Jonathan Austin 0:bc2961fa1ef0 354 }
Jonathan Austin 0:bc2961fa1ef0 355
Jonathan Austin 0:bc2961fa1ef0 356
Jonathan Austin 0:bc2961fa1ef0 357 ble_conn_state_user_flag_id_t ble_conn_state_user_flag_acquire(void)
Jonathan Austin 0:bc2961fa1ef0 358 {
Jonathan Austin 0:bc2961fa1ef0 359 for (ble_conn_state_user_flag_id_t i = BLE_CONN_STATE_USER_FLAG0;
Jonathan Austin 0:bc2961fa1ef0 360 i < BLE_CONN_STATE_N_USER_FLAGS;
Jonathan Austin 0:bc2961fa1ef0 361 i++)
Jonathan Austin 0:bc2961fa1ef0 362 {
Jonathan Austin 0:bc2961fa1ef0 363 if ( !user_flag_is_acquired(i) )
Jonathan Austin 0:bc2961fa1ef0 364 {
Jonathan Austin 0:bc2961fa1ef0 365 user_flag_acquire(i);
Jonathan Austin 0:bc2961fa1ef0 366 return i;
Jonathan Austin 0:bc2961fa1ef0 367 }
Jonathan Austin 0:bc2961fa1ef0 368 }
Jonathan Austin 0:bc2961fa1ef0 369
Jonathan Austin 0:bc2961fa1ef0 370 return BLE_CONN_STATE_USER_FLAG_INVALID;
Jonathan Austin 0:bc2961fa1ef0 371 }
Jonathan Austin 0:bc2961fa1ef0 372
Jonathan Austin 0:bc2961fa1ef0 373
Jonathan Austin 0:bc2961fa1ef0 374 bool ble_conn_state_user_flag_get(uint16_t conn_handle, ble_conn_state_user_flag_id_t flag_id)
Jonathan Austin 0:bc2961fa1ef0 375 {
Jonathan Austin 0:bc2961fa1ef0 376 if (user_flag_is_acquired(flag_id))
Jonathan Austin 0:bc2961fa1ef0 377 {
Jonathan Austin 0:bc2961fa1ef0 378 return sdk_mapped_flags_get_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 379 m_bcs.flags.user_flags[flag_id],
Jonathan Austin 0:bc2961fa1ef0 380 conn_handle);
Jonathan Austin 0:bc2961fa1ef0 381 }
Jonathan Austin 0:bc2961fa1ef0 382 else
Jonathan Austin 0:bc2961fa1ef0 383 {
Jonathan Austin 0:bc2961fa1ef0 384 return false;
Jonathan Austin 0:bc2961fa1ef0 385 }
Jonathan Austin 0:bc2961fa1ef0 386 }
Jonathan Austin 0:bc2961fa1ef0 387
Jonathan Austin 0:bc2961fa1ef0 388
Jonathan Austin 0:bc2961fa1ef0 389 void ble_conn_state_user_flag_set(uint16_t conn_handle,
Jonathan Austin 0:bc2961fa1ef0 390 ble_conn_state_user_flag_id_t flag_id,
Jonathan Austin 0:bc2961fa1ef0 391 bool value)
Jonathan Austin 0:bc2961fa1ef0 392 {
Jonathan Austin 0:bc2961fa1ef0 393 if (user_flag_is_acquired(flag_id))
Jonathan Austin 0:bc2961fa1ef0 394 {
Jonathan Austin 0:bc2961fa1ef0 395 sdk_mapped_flags_update_by_key(m_bcs.valid_conn_handles,
Jonathan Austin 0:bc2961fa1ef0 396 &m_bcs.flags.user_flags[flag_id],
Jonathan Austin 0:bc2961fa1ef0 397 conn_handle,
Jonathan Austin 0:bc2961fa1ef0 398 value);
Jonathan Austin 0:bc2961fa1ef0 399 }
Jonathan Austin 0:bc2961fa1ef0 400 }
Jonathan Austin 0:bc2961fa1ef0 401
Jonathan Austin 0:bc2961fa1ef0 402
Jonathan Austin 0:bc2961fa1ef0 403 sdk_mapped_flags_t ble_conn_state_user_flag_collection(ble_conn_state_user_flag_id_t flag_id)
Jonathan Austin 0:bc2961fa1ef0 404 {
Jonathan Austin 0:bc2961fa1ef0 405 if ( user_flag_is_acquired(flag_id) )
Jonathan Austin 0:bc2961fa1ef0 406 {
Jonathan Austin 0:bc2961fa1ef0 407 return m_bcs.flags.user_flags[flag_id];
Jonathan Austin 0:bc2961fa1ef0 408 }
Jonathan Austin 0:bc2961fa1ef0 409 else
Jonathan Austin 0:bc2961fa1ef0 410 {
Jonathan Austin 0:bc2961fa1ef0 411 return 0;
Jonathan Austin 0:bc2961fa1ef0 412 }
Jonathan Austin 0:bc2961fa1ef0 413 }
Jonathan Austin 0:bc2961fa1ef0 414