I am using the iPhone 8, BLE device (51822/51422), s130, SDK 12.3.0.
and using a bonding and passkey to connect.
However, Direct connection after disconnect
For example,
1.
- At first connection, it is connected and the passkey input window appears.
- Press the cancel button.
- Disconnected.
- However, it is reconnected immediately and the passkey input window appears again.
- After this, if i press cancel button or input wrongly, disconnect, and then the input window appears immediately after connection.
2.
- After entering the passkey, connect and disconnect normally. (In this case, after disconnect , it normally advertises)
- Delete the bond erase in device (keep the phone's bond information intact)
- If i try to connect, it will fail because it does not have the device's bond information. (normal)
- But... After I disconnect, I just want to advertise. However, as soon as the advertisement is disconnected, direct connection - failure - disconnect - advertisement - connection - failure - disconnect - advertisement... repeats itself.
main.c
/**
* Copyright (c) 2015 - 2017, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/**
* @brief Blinky Sample Application main file.
*
* This file contains the source code for a sample server application using the LED Button service.
*/
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include "DeviceVersion.h"
#include "nordic_common.h"
#include "nrf.h"
#include "app_error.h"
#include "ble.h"
#include "ble_hci.h"
#include "ble_gap.h"
#include "ble_advdata.h"
#include "ble_advertising.h"
#include "nrf_gpio.h"
#include "softdevice_handler.h"
#include "ble_srv_common.h"
#include "ble_conn_params.h"
#include "boards.h"
#include "app_timer.h"
#include "fstorage.h"
#include "fds.h"
#include "ble_lls.h"
#include "peer_manager.h"
#include "app_button.h"
#include "bsp.h"
#include "peer_manager.h"
#include "softdevice_handler.h"
#include "bsp_btn_ble.h"
#include "ble_conn_state.h"
#include "nrf_drv_rng.h"
#include "nrf_drv_gpiote.h"
#include "app_uart.h"
#include "nrf_drv_uart.h"
#include "app_util_platform.h"
#include "ble_nus.h"
#include "ble_lbs.h"
#include "ble_dis.h"
#define NRF_LOG_MODULE_NAME "APP"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#define GPIO_PIN_HIGH 1
#define GPIO_PIN_LOW 0
#define CENTRAL_LINK_COUNT 0 /**< Number of central links used by the application. When changing this number remember to adjust the RAM settings*/
#define PERIPHERAL_LINK_COUNT 1 /**< Number of peripheral links used by the application. When changing this number remember to adjust the RAM settings*/
#if (NRF_SD_BLE_API_VERSION == 3)
#define NRF_BLE_MAX_MTU_SIZE GATT_MTU_SIZE_DEFAULT /**< MTU size used in the softdevice enabling and to reply to a BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST event. */
#endif
#define APP_FEATURE_NOT_SUPPORTED BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2 /**< Reply when unsupported features are requested. */
#define BT_CONN_PIN 2
#define BT_RESET_PIN 1
#define DEBOUNCE_INIT_PIN 200
#define DEVICE_NAME "example" /**< Name of device. Will be included in the advertising data. */
#define APP_ADV_INTERVAL 64 /**< The advertising interval (in units of 0.625 ms; this value corresponds to 40 ms). */
#define APP_ADV_TIMEOUT_IN_SECONDS BLE_GAP_ADV_TIMEOUT_GENERAL_UNLIMITED /**< The advertising time-out (in units of seconds). When set to 0, we will never time out. */
#define APP_TIMER_PRESCALER 0 /**< Value of the RTC1 PRESCALER register. */
#define APP_TIMER_MAX_TIMERS 6 /**< Maximum number of simultaneously created timers. */
#define APP_TIMER_OP_QUEUE_SIZE 6 /**< Size of timer operation queues. */
#define SECURITY_REQUEST_DELAY APP_TIMER_TICKS(400, APP_TIMER_PRESCALER) /**< Delay after connection until Security Request is sent, if necessary (ticks). */
#define MIN_CONN_INTERVAL MSEC_TO_UNITS(20, UNIT_1_25_MS) /**< Minimum acceptable connection interval (20 ms), Connection interval uses 1.25 ms units. */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(40, UNIT_1_25_MS) /**< Maximum acceptable connection interval (75 ms), Connection interval uses 1.25 ms units. */
#define SLAVE_LATENCY 0 /**< Slave latency. */
#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory timeout (4 seconds), Supervision Timeout uses 10 ms units. */
#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000, APP_TIMER_PRESCALER) /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (5 seconds). */
#define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(30000, APP_TIMER_PRESCALER) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */
#define MAX_CONN_PARAMS_UPDATE_COUNT 3
#define APP_GPIOTE_MAX_USERS 1 /**< Maximum number of users of the GPIOTE handler. */
#define INITIAL_LLS_ALERT_LEVEL BLE_CHAR_ALERT_LEVEL_NO_ALERT /**< Initial value for the Alert Level characteristic in the Link Loss service. */
#define SEC_PARAM_BOND 1 /**< Perform bonding. */
#define SEC_PARAM_MITM 1 /**< Man In The Middle protection not required. */
#define SEC_PARAM_LESC 0 /**< LE Secure Connections not enabled. */
#define SEC_PARAM_KEYPRESS 0 /**< Keypress notifications not enabled. */
#define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_DISPLAY_ONLY /**< No I/O capabilities. */
#define SEC_PARAM_OOB 0 /**< Out Of Band data not available. */
#define SEC_PARAM_MIN_KEY_SIZE 7 /**< Minimum encryption key size. */
#define SEC_PARAM_MAX_KEY_SIZE 16 /**< Maximum encryption key size. */
#define PASSKEY_TXT "Passkey:" /**< Message to be displayed together with the pass-key. */
#define PASSKEY_TXT_LENGTH 8 /**< Length of message to be displayed together with the pass-key. */
#define PASSKEY_LENGTH 6 /**< Length of pass-key received by the stack for display. */
#define APP_ADV_FAST_INTERVAL 0x0028 //!< Fast advertising interval (in units of 0.625 ms. This value corresponds to 25 ms.). */
#define APP_ADV_SLOW_INTERVAL 0x0C80 //!< Slow advertising interval (in units of 0.625 ms. This value corrsponds to 2 seconds). */
#define APP_ADV_FAST_TIMEOUT 30 //!< The duration of the fast advertising period (in seconds). */
#define APP_ADV_SLOW_TIMEOUT 180 //!< The duration of the slow advertising period (in seconds). */
#define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */
#define STATIC_PASSKEY "FFFFFF"
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
static ble_lls_t m_lls; /**< Structure used to identify the Link Loss service. */
APP_TIMER_DEF(m_sec_req_timer_id); //!< Security request timer. The timer lets us start pairing request if one does not arrive from the Central. */
static ble_opt_t m_static_pin_option;
uint8_t passkey[] = STATIC_PASSKEY;
char n_passkey[PASSKEY_LENGTH];
uint8_t prev_bond;
pm_peer_id_t m_peer_to_be_deleted = PM_PEER_ID_INVALID;
static void advertising_start(void);
static void on_lls_evt(ble_lls_t * p_lls, ble_lls_evt_t * p_evt);
/**@brief Function for assert macro callback.
*
* @details This function will be called in case of an assert in the SoftDevice.
*
* @warning This handler is an example only and does not fit a final product. You need to analyze
* how your product is supposed to react in case of Assert.
* @warning On assert from the SoftDevice, the system can only recover on reset.
*
* @param[in] line_num Line number of the failing ASSERT call.
* @param[in] p_file_name File name of the failing ASSERT call.
*/
void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
{
app_error_handler(DEAD_BEEF, line_num, p_file_name);
}
/**@brief Function for handling Peer Manager events.
*
* @param[in] p_evt Peer Manager event.
*/
static void pm_evt_handler(pm_evt_t const * p_evt)
{
ret_code_t err_code;
//NRF_LOG_INFO("Peer evt : %d \r\n", p_evt->evt_id);
switch (p_evt->evt_id)
{
case PM_EVT_BONDED_PEER_CONNECTED:
{
prev_bond = 1;
NRF_LOG_INFO("Connected to a previously bonded device.\r\n");
} break;
case PM_EVT_CONN_SEC_SUCCEEDED:
{
pm_conn_sec_status_t conn_sec_status;
// Check if the link is authenticated (meaning at least MITM).
err_code = pm_conn_sec_status_get(p_evt->conn_handle, &conn_sec_status);
APP_ERROR_CHECK(err_code);
if (conn_sec_status.mitm_protected)
{
NRF_LOG_INFO("Link secured. Role: %d. conn_handle: %d, Procedure: %d\r\n",
ble_conn_state_role(p_evt->conn_handle),
p_evt->conn_handle,
p_evt->params.conn_sec_succeeded.procedure);
}
else
{
// The peer did not use MITM, disconnect.
NRF_LOG_INFO("Collector did not use MITM, disconnecting\r\n");
err_code = pm_peer_id_get(m_conn_handle, &m_peer_to_be_deleted);
APP_ERROR_CHECK(err_code);
err_code = sd_ble_gap_disconnect(m_conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
}
} break;
case PM_EVT_CONN_SEC_FAILED:
{
NRF_LOG_INFO("Failed to secure connection. Disconnecting.\r\n");
m_conn_handle = BLE_CONN_HANDLE_INVALID;
err_code = sd_ble_gap_disconnect(p_evt->conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
/* Often, when securing fails, it shouldn't be restarted, for security reasons.
* Other times, it can be restarted directly.
* Sometimes it can be restarted, but only after changing some Security Parameters.
* Sometimes, it cannot be restarted until the link is disconnected and reconnected.
* Sometimes it is impossible, to secure the link, or the peer device does not support it.
* How to handle this error is highly application dependent. */
} break;
case PM_EVT_CONN_SEC_CONFIG_REQ:
{
// Reject pairing request from an already bonded peer.
pm_conn_sec_config_t conn_sec_config = {.allow_repairing = false};
pm_conn_sec_config_reply(p_evt->conn_handle, &conn_sec_config);
} break;
case PM_EVT_STORAGE_FULL:
{
// Run garbage collection on the flash.
err_code = fds_gc();
if (err_code == FDS_ERR_BUSY || err_code == FDS_ERR_NO_SPACE_IN_QUEUES)
{
// Retry.
}
else
{
APP_ERROR_CHECK(err_code);
}
} break;
case PM_EVT_PEERS_DELETE_SUCCEEDED:
{
advertising_start();
} break;
case PM_EVT_LOCAL_DB_CACHE_APPLY_FAILED:
{
// The local database has likely changed, send service changed indications.
pm_local_database_has_changed();
} break;
case PM_EVT_PEER_DATA_UPDATE_FAILED:
{
// Assert.
APP_ERROR_CHECK(p_evt->params.peer_data_update_failed.error);
} break;
case PM_EVT_PEER_DELETE_FAILED:
{
// Assert.
APP_ERROR_CHECK(p_evt->params.peer_delete_failed.error);
} break;
case PM_EVT_PEERS_DELETE_FAILED:
{
// Assert.
APP_ERROR_CHECK(p_evt->params.peers_delete_failed_evt.error);
} break;
case PM_EVT_ERROR_UNEXPECTED:
{
// Assert.
APP_ERROR_CHECK(p_evt->params.error_unexpected.error);
} break;
case PM_EVT_CONN_SEC_START:
case PM_EVT_PEER_DELETE_SUCCEEDED:
case PM_EVT_LOCAL_DB_CACHE_APPLIED:
case PM_EVT_SERVICE_CHANGED_IND_SENT:
case PM_EVT_SERVICE_CHANGED_IND_CONFIRMED:
default:
break;
}
}
/**@brief Function for handling the Security Request timer timeout.
*
* @details This function will be called each time the Security Request timer expires.
*
* @param[in] p_context Pointer used for passing some arbitrary information (context) from the
* app_start_timer() call to the timeout handler.
*/
static void sec_req_timeout_handler(void * p_context)
{
uint32_t err_code;
pm_conn_sec_status_t status;
if (m_conn_handle != BLE_CONN_HANDLE_INVALID)
{
// Initiate bonding.
err_code = pm_conn_sec_status_get(m_conn_handle, &status);
APP_ERROR_CHECK(err_code);
if(!status.encrypted){
NRF_LOG_INFO("Start encryption\r\n");
err_code = pm_conn_secure(m_conn_handle, false);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
}
}
}
/**@brief Function for the Timer initialization.
*
* @details Initializes the timer module.
*/
static void timers_init(void)
{
uint32_t err_code;
// Initialize timer module, making it use the scheduler.
APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);
// Create Security Request timer.
err_code = app_timer_create(&m_sec_req_timer_id,
APP_TIMER_MODE_SINGLE_SHOT,
sec_req_timeout_handler);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling Service errors.
*
* @details A pointer to this function will be passed to each service which may need to inform the
* application about an error.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void service_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for the GAP initialization.
*
* @details This function sets up all the necessary GAP (Generic Access Profile) parameters of the
* device including the device name, appearance, and the preferred connection parameters.
*/
static void gap_params_init(void)
{
uint32_t err_code;
ble_gap_conn_params_t gap_conn_params;
ble_gap_conn_sec_mode_t sec_mode;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
err_code = sd_ble_gap_device_name_set(&sec_mode,
(const uint8_t *)DEVICE_NAME,
strlen(DEVICE_NAME));
APP_ERROR_CHECK(err_code);
err_code = sd_ble_gap_appearance_set(BLE_APPEARANCE_UNKNOWN);
APP_ERROR_CHECK(err_code);
memset(&gap_conn_params, 0, sizeof(gap_conn_params));
gap_conn_params.min_conn_interval = MIN_CONN_INTERVAL;
gap_conn_params.max_conn_interval = MAX_CONN_INTERVAL;
gap_conn_params.slave_latency = SLAVE_LATENCY;
gap_conn_params.conn_sup_timeout = CONN_SUP_TIMEOUT;
err_code = sd_ble_gap_ppcp_set(&gap_conn_params);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling Link Loss events.
*
* @details This function will be called for all Link Loss events which are passed to the
* application.
*
* @param[in] p_lls Link Loss structure.
* @param[in] p_evt Event received from the Link Loss service.
*/
static void on_lls_evt(ble_lls_t * p_lls, ble_lls_evt_t * p_evt)
{
switch (p_evt->evt_type)
{
case BLE_LLS_EVT_LINK_LOSS_ALERT:
break; // BLE_LLS_EVT_LINK_LOSS_ALERT
default:
// No implementation needed.
break;
}
}
/**@brief Function for initializing the Link Loss Service.
*/
static void lls_init(void)
{
uint32_t err_code;
ble_lls_init_t lls_init_obj;
// Initialize Link Loss Service
memset(&lls_init_obj, 0, sizeof(lls_init_obj));
lls_init_obj.evt_handler = on_lls_evt;
lls_init_obj.error_handler = service_error_handler;
lls_init_obj.initial_alert_level = INITIAL_LLS_ALERT_LEVEL;
BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&lls_init_obj.lls_attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&lls_init_obj.lls_attr_md.write_perm);
err_code = ble_lls_init(&m_lls, &lls_init_obj);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing services that will be used by the application.
*/
static void services_init(void)
{
lls_init();
}
/**@brief Function for handling the Connection Parameters Module.
*
* @details This function will be called for all events in the Connection Parameters Module that
* are passed to the application.
*
* @note All this function does is to disconnect. This could have been done by simply
* setting the disconnect_on_fail config parameter, but instead we use the event
* handler mechanism to demonstrate its use.
*
* @param[in] p_evt Event received from the Connection Parameters Module.
*/
static void on_conn_params_evt(ble_conn_params_evt_t * p_evt)
{
uint32_t err_code;
if (p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED)
{
err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for handling a Connection Parameters error.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void conn_params_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for initializing the Connection Parameters module.
*/
static void conn_params_init(void)
{
uint32_t err_code;
ble_conn_params_init_t cp_init;
memset(&cp_init, 0, sizeof(cp_init));
cp_init.p_conn_params = NULL;
cp_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY;
cp_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY;
cp_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT;
cp_init.start_on_notify_cccd_handle = BLE_GATT_HANDLE_INVALID;
cp_init.disconnect_on_fail = false;
cp_init.evt_handler = on_conn_params_evt;
cp_init.error_handler = conn_params_error_handler;
err_code = ble_conn_params_init(&cp_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling events from the BSP module.
*
* @param[in] event Event generated by button press.
*/
static void bsp_event_handler(bsp_event_t event)
{
uint32_t err_code;
switch (event)
{
case BSP_EVENT_DISCONNECT:
err_code = sd_ble_gap_disconnect(m_conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
break;
case BSP_EVENT_WHITELIST_OFF:
if (m_conn_handle == BLE_CONN_HANDLE_INVALID)
{
err_code = ble_advertising_restart_without_whitelist();
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
}
break;
default:
break;
}
}
/**@brief Function for starting advertising.
*/
static void advertising_start(void)
{
uint32_t ret;
ret = ble_advertising_start(BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(ret);
}
/**@brief Function for handling advertising events.
*
* @details This function will be called for advertising events which are passed to the application.
*
* @param[in] ble_adv_evt Advertising event.
*/
static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
{
uint32_t err_code;
switch (ble_adv_evt)
{
case BLE_ADV_EVT_FAST:
NRF_LOG_INFO("Fast advertising\r\n");
err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
APP_ERROR_CHECK(err_code);
break;
case BLE_ADV_EVT_SLOW:
NRF_LOG_INFO("Slow advertising\r\n");
err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING_SLOW);
APP_ERROR_CHECK(err_code);
break;
case BLE_ADV_EVT_IDLE:
//sleep_mode_enter();
break;
default:
break;
}
}
/**@brief Function for handling the Application's BLE stack events.
*
* @param[in] p_ble_evt Bluetooth stack event.
*/
static void on_ble_evt(ble_evt_t * p_ble_evt)
{
uint32_t err_code = NRF_SUCCESS;
switch (p_ble_evt->header.evt_id)
{
case BLE_EVT_TX_COMPLETE:
break;
case BLE_GAP_EVT_SEC_INFO_REQUEST:
break;
case BLE_GAP_EVT_AUTH_STATUS:
if(p_ble_evt->evt.gap_evt.params.auth_status.auth_status == BLE_GAP_SEC_STATUS_SUCCESS){
nrf_gpio_pin_write(BT_CONN_PIN, GPIO_PIN_HIGH);
NRF_LOG_INFO("CONN_PIN_HIGH.\r\n");
}else{
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gap_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}else{
NRF_LOG_INFO("FATAL ERROR !\r\n");
}
}
break;
case BLE_GAP_EVT_CONN_SEC_UPDATE:
if(prev_bond || p_ble_evt->evt.gap_evt.params.auth_status.bonded){
prev_bond = 0;
nrf_gpio_pin_write(BT_CONN_PIN, GPIO_PIN_HIGH);
NRF_LOG_INFO("CONN_PIN_HIGH.\r\n");
}
break;
case BLE_GAP_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected.\r\n");
prev_bond = 0;
nrf_gpio_pin_write(BT_CONN_PIN, GPIO_PIN_LOW);
m_conn_handle = BLE_CONN_HANDLE_INVALID;
/*check if the last connected peer had not used MITM, if so, delete its bond information*/
if (m_peer_to_be_deleted != PM_PEER_ID_INVALID)
{
ret_code_t ret_val = pm_peer_delete(m_peer_to_be_deleted);
APP_ERROR_CHECK(ret_val);
NRF_LOG_INFO("Collector's bond deleted\r\n");
m_peer_to_be_deleted = PM_PEER_ID_INVALID;
}
break; // BLE_GAP_EVT_DISCONNECTED
case BLE_GAP_EVT_CONNECTED:
NRF_LOG_INFO("Connected\r\n");
prev_bond = 0;
m_peer_to_be_deleted = PM_PEER_ID_INVALID;
err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
APP_ERROR_CHECK(err_code);
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
uint8_t p_buff[4];
err_code = nrf_drv_rng_rand(p_buff, 4);
APP_ERROR_CHECK(err_code);
for(uint8_t i=0; i<4; i++){
passkey[i+2] = p_buff[i] % 9 + 48;
}
m_static_pin_option.gap_opt.passkey.p_passkey = &passkey[0];
err_code = sd_ble_opt_set(BLE_GAP_OPT_PASSKEY, &m_static_pin_option);
APP_ERROR_CHECK(err_code);
err_code = app_timer_start(m_sec_req_timer_id, SECURITY_REQUEST_DELAY, NULL);
APP_ERROR_CHECK(err_code);
break; // BLE_GAP_EVT_CONNECTED
case BLE_GAP_EVT_PASSKEY_DISPLAY:
{
char passkey[PASSKEY_LENGTH + 1];
memcpy(passkey, p_ble_evt->evt.gap_evt.params.passkey_display.passkey, PASSKEY_LENGTH);
passkey[PASSKEY_LENGTH] = 0;
// Don't send delayed Security Request if security procedure is already in progress.
err_code = app_timer_stop(m_sec_req_timer_id);
APP_ERROR_CHECK(err_code);
memcpy(n_passkey, passkey, PASSKEY_LENGTH);
//err_code = app_timer_start(m_mcu_rsp_timer_id, MCU_RESPONSE_DELAY, NULL);
//APP_ERROR_CHECK(err_code);
NRF_LOG_INFO("Passkey: %s\r\n",nrf_log_push(passkey));
} break; // BLE_GAP_EVT_PASSKEY_DISPLAY
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
/*err_code = sd_ble_gap_sec_params_reply(m_conn_handle,
BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP,
NULL,
NULL);
APP_ERROR_CHECK(err_code);*/
break; // BLE_GAP_EVT_SEC_PARAMS_REQUEST
case BLE_GATTS_EVT_SYS_ATTR_MISSING:
// No system attributes have been stored.
err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0, 0);
APP_ERROR_CHECK(err_code);
break; // BLE_GATTS_EVT_SYS_ATTR_MISSIN
default:
// No implementation needed.
break;
}
}
/**@brief Function for initializing the Advertising functionality.
*
* @details Encodes the required advertising data and passes it to the stack.
* Also builds a structure to be passed to the stack when starting advertising.
*/
static void advertising_init(void)
{
uint32_t err_code;
ble_advdata_t advdata;
ble_adv_modes_config_t options;
// Build and set advertising data
memset(&advdata, 0, sizeof(advdata));
advdata.name_type = BLE_ADVDATA_FULL_NAME;
advdata.include_appearance = true;
advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
options.ble_adv_whitelist_enabled = false;
options.ble_adv_directed_enabled = false;
options.ble_adv_directed_slow_enabled = false;
options.ble_adv_directed_slow_interval = 0;
options.ble_adv_directed_slow_timeout = 0;
options.ble_adv_fast_enabled = true;
options.ble_adv_fast_interval = APP_ADV_FAST_INTERVAL;
options.ble_adv_fast_timeout = APP_ADV_FAST_TIMEOUT;
options.ble_adv_slow_enabled = true;
options.ble_adv_slow_interval = APP_ADV_SLOW_INTERVAL;
//options.ble_adv_slow_timeout = APP_ADV_SLOW_TIMEOUT;
#if(UART_TEST_MODE)
ble_advdata_t scanrsp;
memset(&scanrsp, 0, sizeof(scanrsp));
scanrsp.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
scanrsp.uuids_complete.p_uuids = m_adv_uuids;
err_code = ble_advertising_init(&advdata, &scanrsp, &options, on_adv_evt, NULL);
#else
err_code = ble_advertising_init(&advdata, NULL, &options, on_adv_evt, NULL);
#endif
APP_ERROR_CHECK(err_code);
}
/**@brief Function for dispatching a BLE stack event to all modules with a BLE stack event handler.
*
* @details This function is called from the scheduler in the main loop after a BLE stack
* event has been received.
*
* @param[in] p_ble_evt Bluetooth stack event.
*/
static void ble_evt_dispatch(ble_evt_t * p_ble_evt)
{
ble_conn_state_on_ble_evt(p_ble_evt);
pm_on_ble_evt(p_ble_evt);
ble_lls_on_ble_evt(&m_lls, p_ble_evt);
ble_conn_params_on_ble_evt(p_ble_evt);
on_ble_evt(p_ble_evt);
ble_advertising_on_ble_evt(p_ble_evt);
}
/**@brief Function for dispatching a system event to interested modules.
*
* @details This function is called from the System event interrupt handler after a system
* event has been received.
*
* @param[in] sys_evt System stack event.
*/
static void sys_evt_dispatch(uint32_t sys_evt)
{
// Dispatch the system event to the fstorage module, where it will be
// dispatched to the Flash Data Storage (FDS) module.
fs_sys_event_handler(sys_evt);
// Dispatch to the Advertising module last, since it will check if there are any
// pending flash operations in fstorage. Let fstorage process system events first,
// so that it can report correctly to the Advertising module.
ble_advertising_on_sys_evt(sys_evt);
}
/**@brief Function for initializing the BLE stack.
*
* @details Initializes the SoftDevice and the BLE event interrupt.
*/
static void ble_stack_init(void)
{
uint32_t err_code;
nrf_clock_lf_cfg_t clock_lf_cfg = NRF_CLOCK_LFCLKSRC;
// Initialize the SoftDevice handler module.
SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL);
ble_enable_params_t ble_enable_params;
err_code = softdevice_enable_get_default_config(CENTRAL_LINK_COUNT,
PERIPHERAL_LINK_COUNT,
&ble_enable_params);
APP_ERROR_CHECK(err_code);
//Check the ram settings against the used number of links
CHECK_RAM_START_ADDR(CENTRAL_LINK_COUNT, PERIPHERAL_LINK_COUNT);
// Enable BLE stack.
#if (NRF_SD_BLE_API_VERSION == 3)
ble_enable_params.gatt_enable_params.att_mtu = NRF_BLE_MAX_MTU_SIZE;
#endif
err_code = softdevice_enable(&ble_enable_params);
APP_ERROR_CHECK(err_code);
// Subscribe for BLE events.
err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
APP_ERROR_CHECK(err_code);
// Register with the SoftDevice handler module for BLE events.
err_code = softdevice_sys_evt_handler_set(sys_evt_dispatch);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for the Peer Manager initialization.
*
* @param[in] erase_bonds Indicates whether bonding information should be cleared from
* persistent storage during initialization of the Peer Manager.
*/
static void peer_manager_init(bool erase_bonds)
{
ble_gap_sec_params_t sec_param;
ret_code_t err_code;
err_code = pm_init();
APP_ERROR_CHECK(err_code);
if (erase_bonds)
{
err_code = pm_peers_delete();
APP_ERROR_CHECK(err_code);
}
memset(&sec_param, 0, sizeof(ble_gap_sec_params_t));
// Security parameters to be used for all security procedures.
sec_param.bond = SEC_PARAM_BOND;
sec_param.mitm = SEC_PARAM_MITM;
sec_param.lesc = SEC_PARAM_LESC;
sec_param.keypress = SEC_PARAM_KEYPRESS;
sec_param.io_caps = SEC_PARAM_IO_CAPABILITIES;
sec_param.oob = SEC_PARAM_OOB;
sec_param.min_key_size = SEC_PARAM_MIN_KEY_SIZE;
sec_param.max_key_size = SEC_PARAM_MAX_KEY_SIZE;
sec_param.kdist_own.enc = 1;
sec_param.kdist_own.id = 1;
sec_param.kdist_peer.enc = 1;
sec_param.kdist_peer.id = 1;
err_code = pm_sec_params_set(&sec_param);
APP_ERROR_CHECK(err_code);
err_code = pm_register(pm_evt_handler);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for the Power Manager.
*/
static void power_manage(void)
{
uint32_t err_code = sd_app_evt_wait();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing buttons and leds.
*
* @param[out] p_erase_bonds Will be true if the clear bonding button was pressed to wake the application up.
*/
static void buttons_leds_init(bool * p_erase_bonds)
{
bsp_event_t startup_event;
uint32_t err_code = bsp_init(BSP_INIT_LED | BSP_INIT_BUTTONS,
APP_TIMER_TICKS(100, APP_TIMER_PRESCALER),
bsp_event_handler);
APP_ERROR_CHECK(err_code);
err_code = bsp_btn_ble_init(NULL, &startup_event);
APP_ERROR_CHECK(err_code);
*p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);
}
/**@brief Function for application main entry.
*/
int main(void)
{
ret_code_t err_code;
bool erase_bonds;
err_code = NRF_LOG_INIT(NULL);
APP_ERROR_CHECK(err_code);
timers_init();
buttons_leds_init(&erase_bonds);
ble_stack_init();
#if(SEC_PARAM_BOND)
peer_manager_init(false);
#endif
gap_params_init();
services_init();
advertising_init();
conn_params_init();
// Start execution.
NRF_LOG_INFO("VERSION ... %s \r\n", nrf_log_push(FW_VERSION));
advertising_start();
// Enter main loop.
for (;;)
{
if (NRF_LOG_PROCESS() == false)
{
power_manage();
}
}
}
/**
* @}
*/
