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main.c
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main.c
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/* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved.
*
* The information contained herein is property of Nordic Semiconductor ASA.
* Terms and conditions of usage are described in detail in NORDIC
* SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
*
* Licensees are granted free, non-transferable use of the information. NO
* WARRANTY of ANY KIND is provided. This heading must NOT be removed from
* the file.
*
*/
/** @file
*
* @defgroup ble_sdk_app_proximity_main main.c
* @{
* @ingroup ble_sdk_app_proximity_eval
* @brief Proximity Application main file.
*
* This file contains is the source code for a sample proximity application using the
* Immediate Alert, Link Loss and Tx Power services.
*
* This application would accept pairing requests from any peer device.
*
* It demonstrates the use of fast and slow advertising intervals.
*/
#include <stdint.h>
#include <string.h>
#include "ble_advertising.h"
#include "nordic_common.h"
#include "nrf.h"
#include "nrf_soc.h"
#include "app_error.h"
#include "ble.h"
#include "ble_hci.h"
#include "ble_srv_common.h"
#include "ble_advdata.h"
#include "ble_tps.h"
#include "ble_ias.h"
#include "ble_lls.h"
#include "ble_bas.h"
#include "ble_conn_params.h"
#include "sensorsim.h"
#include "softdevice_handler.h"
#include "app_timer.h"
#include "ble_ias_c.h"
#include "app_util.h"
#include "nrf_log.h"
#include "bsp.h"
#include "bsp_btn_ble.h"
#include "ble_db_discovery.h"
#include "nrf_log.h"
#include "peer_manager.h"
#include "fds.h"
#include "fstorage.h"
#include "ble_conn_state.h"
#ifdef NRF51
#include "nrf_drv_adc.h"
#else
#include "nrf_drv_saadc.h"
#endif //NRF51
#define APP_FEATURE_NOT_SUPPORTED BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2 /**< Reply when unsupported features are requested. */
#define IS_SRVC_CHANGED_CHARACT_PRESENT 0 /**< Include or not the service_changed characteristic. if not enabled, the server's database cannot be changed for the lifetime of the device*/
#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*/
#define SIGNAL_ALERT_BUTTON_ID 0 /**< Button used for send or cancel High Alert to the peer. */
#define STOP_ALERTING_BUTTON_ID 1 /**< Button used for clearing the Alert LED that may be blinking or turned ON because of alerts from the central. */
#define DEVICE_NAME "Nordic_Prox" /**< Name of device. Will be included in the advertising data. */
#define APP_ADV_INTERVAL_FAST 0x0028 /**< Fast advertising interval (in units of 0.625 ms. This value corresponds to 25 ms.). */
#define APP_ADV_INTERVAL_SLOW 0x0C80 /**< Slow advertising interval (in units of 0.625 ms. This value corresponds to 2 seconds). */
#define APP_SLOW_ADV_TIMEOUT 180 /**< The duration of the slow advertising period (in seconds). */
#define APP_FAST_ADV_TIMEOUT 30 /**< The duration of the fast advertising period (in seconds). */
#define APP_TIMER_PRESCALER 0 /**< Value of the RTC1 PRESCALER register. */
#define APP_TIMER_OP_QUEUE_SIZE 6 /**< Size of timer operation queues. */
#define BATTERY_LEVEL_MEAS_INTERVAL APP_TIMER_TICKS(120000, APP_TIMER_PRESCALER) /**< Battery level measurement interval (ticks). This value corresponds to 120 seconds. */
#define ADV_LED_ON_TIME APP_TIMER_TICKS(100, APP_TIMER_PRESCALER) /**< Advertisement LED ON period when in blinking state. */
#define ADV_LED_OFF_TIME APP_TIMER_TICKS(900, APP_TIMER_PRESCALER) /**< Advertisement LED OFF period when in blinking state. */
#define MILD_ALERT_LED_ON_TIME APP_TIMER_TICKS(100, APP_TIMER_PRESCALER) /**< Alert LED ON period when in blinking state. */
#define MILD_ALERT_LED_OFF_TIME APP_TIMER_TICKS(900, APP_TIMER_PRESCALER) /**< Alert LED OFF period when in blinking state. */
#define MIN_CONN_INTERVAL MSEC_TO_UNITS(500, UNIT_1_25_MS) /**< Minimum acceptable connection interval (0.5 seconds). */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(1000, UNIT_1_25_MS) /**< Maximum acceptable connection interval (1 second). */
#define SLAVE_LATENCY 0 /**< Slave latency. */
#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory timeout (4 seconds). */
#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 /**< Number of attempts before giving up the connection parameter negotiation. */
#define SEC_PARAM_BOND 1 /**< Perform bonding. */
#define SEC_PARAM_MITM 0 /**< 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_NONE /**< 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 INITIAL_LLS_ALERT_LEVEL BLE_CHAR_ALERT_LEVEL_NO_ALERT /**< Initial value for the Alert Level characteristic in the Link Loss service. */
#define TX_POWER_LEVEL (-8) /**< TX Power Level value. This will be set both in the TX Power service, in the advertising data, and also used to set the radio transmit power. */
#define ADC_REF_VOLTAGE_IN_MILLIVOLTS 600 /**< Reference voltage (in milli volts) used by ADC while doing conversion. */
#define ADC_PRE_SCALING_COMPENSATION 6 /**< The ADC is configured to use VDD with 1/3 prescaling as input. And hence the result of conversion is to be multiplied by 3 to get the actual value of the battery voltage.*/
#define DIODE_FWD_VOLT_DROP_MILLIVOLTS 270 /**< Typical forward voltage drop of the diode (Part no: SD103ATW-7-F) that is connected in series with the voltage supply. This is the voltage drop when the forward current is 1mA. Source: Data sheet of 'SURFACE MOUNT SCHOTTKY BARRIER DIODE ARRAY' available at www.diodes.com. */
#define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */
#define ADC_REF_VBG_VOLTAGE_IN_MILLIVOLTS 1200 /**< Value in millivolts for voltage used as reference in ADC conversion on NRF51. */
#define ADC_INPUT_PRESCALER 3 /**< Input prescaler for ADC convestion on NRF51. */
#define ADC_RES_10BIT 1024 /**< Maximum digital value for 10-bit ADC conversion. */
/**@brief Macro to convert the result of ADC conversion in millivolts.
*
* @param[in] ADC_VALUE ADC result.
*
* @retval Result converted to millivolts.
*/
#ifdef NRF51
#define ADC_RESULT_IN_MILLI_VOLTS(ADC_VALUE)\
((((ADC_VALUE) * ADC_REF_VBG_VOLTAGE_IN_MILLIVOLTS) / ADC_RES_10BIT) * ADC_INPUT_PRESCALER)
#else // NRF52
#define ADC_RESULT_IN_MILLI_VOLTS(ADC_VALUE)\
((((ADC_VALUE) * ADC_REF_VOLTAGE_IN_MILLIVOLTS) / ADC_RES_10BIT) * ADC_PRE_SCALING_COMPENSATION)
#endif // NRF51
static ble_db_discovery_t m_ble_db_discovery; /**< Structure used to identify the DB Discovery module. */
static ble_tps_t m_tps; /**< Structure used to identify the TX Power service. */
static ble_ias_t m_ias; /**< Structure used to identify the Immediate Alert service. */
static ble_lls_t m_lls; /**< Structure used to identify the Link Loss service. */
static ble_bas_t m_bas; /**< Structure used to identify the battery service. */
static ble_ias_c_t m_ias_c; /**< Structure used to identify the client to the Immediate Alert Service at peer. */
static volatile bool m_is_high_alert_signalled; /**< Variable to indicate whether a high alert has been signalled to the peer. */
static volatile bool m_is_ias_present = false; /**< Variable to indicate whether the immediate alert service has been discovered at the connected peer. */
static volatile uint8_t write_flag=0;
APP_TIMER_DEF(m_battery_timer_id); /**< Battery measurement timer. */
#define APP_ADV_INTERVAL 40 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 25 ms). */
#define APP_ADV_TIMEOUT_IN_SECONDS 180 /**< The advertising timeout in units of seconds. */
static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_IMMEDIATE_ALERT_SERVICE, BLE_UUID_TYPE_BLE},
{BLE_UUID_BATTERY_SERVICE, BLE_UUID_TYPE_BLE},
{BLE_UUID_TX_POWER_SERVICE, BLE_UUID_TYPE_BLE},
{BLE_UUID_LINK_LOSS_SERVICE, BLE_UUID_TYPE_BLE}}; /**< Universally unique service identifiers. */
static void on_ias_evt(ble_ias_t * p_ias, ble_ias_evt_t * p_evt);
static void on_lls_evt(ble_lls_t * p_lls, ble_lls_evt_t * p_evt);
static void on_ias_c_evt(ble_ias_c_t * p_lls, ble_ias_c_evt_t * p_evt);
static void on_bas_evt(ble_bas_t * p_bas, ble_bas_evt_t * p_evt);
static void advertising_init(void);
static void advertising_start(void);
#ifdef NRF51
static nrf_adc_value_t adc_buf[1];
#else
static nrf_saadc_value_t adc_buf[2];
#endif //NRF52
/**@brief Callback function for asserts in the SoftDevice.
*
* @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] 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 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 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;
switch(p_evt->evt_id)
{
case PM_EVT_BONDED_PEER_CONNECTED:
{
NRF_LOG_PRINTF_DEBUG("Connected to previously bonded device\r\n");
err_code = pm_peer_rank_highest(p_evt->peer_id);
if (err_code != NRF_ERROR_BUSY)
{
APP_ERROR_CHECK(err_code);
}
}break;//PM_EVT_BONDED_PEER_CONNECTED
case PM_EVT_CONN_SEC_START:
break;//PM_EVT_CONN_SEC_START
case PM_EVT_CONN_SEC_SUCCEEDED:
{
NRF_LOG_PRINTF_DEBUG("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);
err_code = pm_peer_rank_highest(p_evt->peer_id);
if (err_code != NRF_ERROR_BUSY)
{
APP_ERROR_CHECK(err_code);
}
}break;//PM_EVT_CONN_SEC_SUCCEEDED
case PM_EVT_CONN_SEC_FAILED:
{
/** In some cases, when securing fails, 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. */
switch (p_evt->params.conn_sec_failed.error)
{
case PM_CONN_SEC_ERROR_PIN_OR_KEY_MISSING:
// Rebond if one party has lost its keys.
err_code = pm_conn_secure(p_evt->conn_handle, true);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
break;//PM_CONN_SEC_ERROR_PIN_OR_KEY_MISSING
default:
break;
}
}break;//PM_EVT_CONN_SEC_FAILED
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;//PM_EVT_CONN_SEC_CONFIG_REQ
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;//PM_EVT_STORAGE_FULL
case PM_EVT_ERROR_UNEXPECTED:
// Assert.
APP_ERROR_CHECK(p_evt->params.error_unexpected.error);
break;//PM_EVT_ERROR_UNEXPECTED
case PM_EVT_PEER_DATA_UPDATE_SUCCEEDED:
break;//PM_EVT_PEER_DATA_UPDATE_SUCCEEDED
case PM_EVT_PEER_DATA_UPDATE_FAILED:
// Assert.
APP_ERROR_CHECK_BOOL(false);
break;//PM_EVT_PEER_DATA_UPDATE_FAILED
case PM_EVT_PEER_DELETE_SUCCEEDED:
break;//PM_EVT_PEER_DELETE_SUCCEEDED
case PM_EVT_PEER_DELETE_FAILED:
// Assert.
APP_ERROR_CHECK(p_evt->params.peer_delete_failed.error);
break;//PM_EVT_PEER_DELETE_FAILED
case PM_EVT_PEERS_DELETE_SUCCEEDED:
advertising_start();
break;//PM_EVT_PEERS_DELETE_SUCCEEDED
case PM_EVT_PEERS_DELETE_FAILED:
// Assert.
APP_ERROR_CHECK(p_evt->params.peers_delete_failed_evt.error);
break;//PM_EVT_PEERS_DELETE_FAILED
case PM_EVT_LOCAL_DB_CACHE_APPLIED:
break;//PM_EVT_LOCAL_DB_CACHE_APPLIED
case PM_EVT_LOCAL_DB_CACHE_APPLY_FAILED:
// The local database has likely changed, send service changed indications.
pm_local_database_has_changed();
break;//PM_EVT_LOCAL_DB_CACHE_APPLY_FAILED
case PM_EVT_SERVICE_CHANGED_IND_SENT:
break;//PM_EVT_SERVICE_CHANGED_IND_SENT
case PM_EVT_SERVICE_CHANGED_IND_CONFIRMED:
break;//PM_EVT_SERVICE_CHANGED_IND_SENT
default:
// No implementation needed.
break;
}
}
#ifdef NRF51
/**@brief Function for handling the ADC driver eevent.
*
* @details This function will fetch the conversion result from the ADC, convert the value into
* percentage and send it to peer.
*/
void adc_event_handler(nrf_drv_adc_evt_t const * p_event)
{
if (p_event->type == NRF_DRV_ADC_EVT_DONE)
{
nrf_adc_value_t adc_result;
uint16_t batt_lvl_in_milli_volts;
uint8_t percentage_batt_lvl;
uint32_t err_code;
adc_result = p_event->data.done.p_buffer[0];
err_code = nrf_drv_adc_buffer_convert(p_event->data.done.p_buffer, 1);
APP_ERROR_CHECK(err_code);
batt_lvl_in_milli_volts = ADC_RESULT_IN_MILLI_VOLTS(adc_result) +
DIODE_FWD_VOLT_DROP_MILLIVOLTS;
percentage_batt_lvl = battery_level_in_percent(batt_lvl_in_milli_volts);
err_code = ble_bas_battery_level_update(&m_bas, percentage_batt_lvl);
if (
(err_code != NRF_SUCCESS)
&&
(err_code != NRF_ERROR_INVALID_STATE)
&&
(err_code != BLE_ERROR_NO_TX_PACKETS)
&&
(err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
)
{
APP_ERROR_HANDLER(err_code);
}
}
}
#else // NRF52
/**@brief Function for handling the ADC interrupt.
*
* @details This function will fetch the conversion result from the ADC, convert the value into
* percentage and send it to peer.
*/
void saadc_event_handler(nrf_drv_saadc_evt_t const * p_event)
{
if (p_event->type == NRF_DRV_SAADC_EVT_DONE)
{
nrf_saadc_value_t adc_result;
uint16_t batt_lvl_in_milli_volts;
uint8_t percentage_batt_lvl;
uint32_t err_code;
adc_result = p_event->data.done.p_buffer[0];
err_code = nrf_drv_saadc_buffer_convert(p_event->data.done.p_buffer, 1);
APP_ERROR_CHECK(err_code);
batt_lvl_in_milli_volts = ADC_RESULT_IN_MILLI_VOLTS(adc_result) +
DIODE_FWD_VOLT_DROP_MILLIVOLTS;
percentage_batt_lvl = battery_level_in_percent(batt_lvl_in_milli_volts);
err_code = ble_bas_battery_level_update(&m_bas, percentage_batt_lvl);
if (
(err_code != NRF_SUCCESS)
&&
(err_code != NRF_ERROR_INVALID_STATE)
&&
(err_code != BLE_ERROR_NO_TX_PACKETS)
&&
(err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
)
{
APP_ERROR_HANDLER(err_code);
}
}
}
#endif // NRF51
/**@brief Function for handling database discovery events.
*
* @details This function is callback function to handle events from the database discovery module.
* Depending on the UUIDs that are discovered, this function should forward the events
* to their respective services.
*
* @param[in] p_event Pointer to the database discovery event.
*/
static void db_disc_handler(ble_db_discovery_evt_t * p_evt)
{
ble_ias_c_on_db_disc_evt(&m_ias_c, p_evt);
}
/**@brief Function for configuring ADC to do battery level conversion.
*/
static void adc_configure(void)
{
#ifdef NRF51
ret_code_t err_code = nrf_drv_adc_init(NULL, adc_event_handler);
APP_ERROR_CHECK(err_code);
static nrf_drv_adc_channel_t channel = NRF_DRV_ADC_DEFAULT_CHANNEL(NRF_ADC_CONFIG_INPUT_DISABLED);
//channel.config.config.input = NRF_ADC_CONFIG_SCALING_SUPPLY_ONE_THIRD;
channel.config.config.input = (uint32_t)NRF_ADC_CONFIG_SCALING_SUPPLY_ONE_THIRD;
nrf_drv_adc_channel_enable(&channel);
err_code = nrf_drv_adc_buffer_convert(&adc_buf[0], 1);
APP_ERROR_CHECK(err_code);
#else // NRF52
ret_code_t err_code = nrf_drv_saadc_init(NULL, saadc_event_handler);
APP_ERROR_CHECK(err_code);
nrf_saadc_channel_config_t config = NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_VDD);
err_code = nrf_drv_saadc_channel_init(0,&config);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_saadc_buffer_convert(&adc_buf[0], 1);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_saadc_buffer_convert(&adc_buf[1], 1);
APP_ERROR_CHECK(err_code);
#endif //NRF51
}
/**@brief Function for handling the Battery measurement timer timeout.
*
* @details This function will be called each time the battery level measurement timer expires.
* This function will start the ADC.
*
* @param[in] p_context Pointer used for passing some arbitrary information (context) from the
* app_start_timer() call to the timeout handler.
*/
static void battery_level_meas_timeout_handler(void * p_context)
{
UNUSED_PARAMETER(p_context);
#ifdef NRF51
nrf_drv_adc_sample();
#else // NRF52
uint32_t err_code;
err_code = nrf_drv_saadc_sample();
APP_ERROR_CHECK(err_code);
#endif // NRF51
}
/**@brief Function for the Timer initialization.
*
* @details Initializes the timer module. This creates and starts application timers.
*/
static void timers_init(void)
{
uint32_t err_code;
// Initialize timer module.
APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);
// Create battery timer.
err_code = app_timer_create(&m_battery_timer_id,
APP_TIMER_MODE_REPEATED,
battery_level_meas_timeout_handler);
APP_ERROR_CHECK(err_code);
}
/**@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_GENERIC_KEYRING);
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);
err_code = sd_ble_gap_tx_power_set(TX_POWER_LEVEL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for putting the chip into sleep mode.
*
* @note This function will not return.
*/
static void sleep_mode_enter(void)
{
uint32_t err_code = bsp_indication_set(BSP_INDICATE_IDLE);
APP_ERROR_CHECK(err_code);
// Prepare wakeup buttons.
err_code = bsp_btn_ble_sleep_mode_prepare();
APP_ERROR_CHECK(err_code);
// Go to system-off mode (this function will not return; wakeup will cause a reset).
err_code = sd_power_system_off();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the Application's BLE Stack 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:
err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
APP_ERROR_CHECK(err_code);
break;//BLE_ADV_EVT_FAST
case BLE_ADV_EVT_IDLE:
sleep_mode_enter();
break;//BLE_ADV_EVT_IDLE
default:
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;
// 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_LIMITED_DISC_MODE;;
advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
advdata.uuids_complete.p_uuids = m_adv_uuids;
ble_adv_modes_config_t options = {0};
options.ble_adv_fast_enabled = BLE_ADV_FAST_ENABLED;
options.ble_adv_fast_interval = APP_ADV_INTERVAL;
options.ble_adv_fast_timeout = APP_ADV_TIMEOUT_IN_SECONDS;
err_code = ble_advertising_init(&advdata, NULL, &options, on_adv_evt, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the TX Power Service.
*/
static void tps_init(void)
{
uint32_t err_code;
ble_tps_init_t tps_init_obj;
memset(&tps_init_obj, 0, sizeof(tps_init_obj));
tps_init_obj.initial_tx_power_level = TX_POWER_LEVEL;
BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&tps_init_obj.tps_attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&tps_init_obj.tps_attr_md.write_perm);
err_code = ble_tps_init(&m_tps, &tps_init_obj);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the Immediate Alert Service.
*/
static void ias_init(void)
{
uint32_t err_code;
ble_ias_init_t ias_init_obj;
memset(&ias_init_obj, 0, sizeof(ias_init_obj));
ias_init_obj.evt_handler = on_ias_evt;
err_code = ble_ias_init(&m_ias, &ias_init_obj);
APP_ERROR_CHECK(err_code);
}
/**@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 the Battery Service.
*/
static void bas_init(void)
{
uint32_t err_code;
ble_bas_init_t bas_init_obj;
memset(&bas_init_obj, 0, sizeof(bas_init_obj));
bas_init_obj.evt_handler = on_bas_evt;
bas_init_obj.support_notification = true;
bas_init_obj.p_report_ref = NULL;
bas_init_obj.initial_batt_level = 100;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init_obj.battery_level_char_attr_md.cccd_write_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init_obj.battery_level_char_attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&bas_init_obj.battery_level_char_attr_md.write_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init_obj.battery_level_report_read_perm);
err_code = ble_bas_init(&m_bas, &bas_init_obj);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the immediate alert service client.
*
* @details This will initialize the client side functionality of the Find Me profile.
*/
static void ias_client_init(void)
{
uint32_t err_code;
ble_ias_c_init_t ias_c_init_obj;
memset(&ias_c_init_obj, 0, sizeof(ias_c_init_obj));
m_is_high_alert_signalled = false;
ias_c_init_obj.evt_handler = on_ias_c_evt;
ias_c_init_obj.error_handler = service_error_handler;
err_code = ble_ias_c_init(&m_ias_c, &ias_c_init_obj);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the services that will be used by the application.
*/
static void services_init(void)
{
tps_init();
ias_init();
lls_init();
bas_init();
ias_client_init();
}
/** @brief Database discovery module initialization.
*/
static void db_discovery_init(void)
{
uint32_t err_code = ble_db_discovery_init(db_disc_handler);
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 = true;
cp_init.evt_handler = NULL;
cp_init.error_handler = conn_params_error_handler;
err_code = ble_conn_params_init(&cp_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for the Signals alert event from Immediate Alert or Link Loss services.
*
* @param[in] alert_level Requested alert level.
*/
static void alert_signal(uint8_t alert_level)
{
uint32_t err_code;
switch (alert_level)
{
case BLE_CHAR_ALERT_LEVEL_NO_ALERT:
err_code = bsp_indication_set(BSP_INDICATE_ALERT_OFF);
APP_ERROR_CHECK(err_code);
break;//BLE_CHAR_ALERT_LEVEL_NO_ALERT
case BLE_CHAR_ALERT_LEVEL_MILD_ALERT:
err_code = bsp_indication_set(BSP_INDICATE_ALERT_0);
APP_ERROR_CHECK(err_code);
break;//BLE_CHAR_ALERT_LEVEL_MILD_ALERT
case BLE_CHAR_ALERT_LEVEL_HIGH_ALERT:
err_code = bsp_indication_set(BSP_INDICATE_ALERT_3);
APP_ERROR_CHECK(err_code);
break;//BLE_CHAR_ALERT_LEVEL_HIGH_ALERT
default:
// No implementation needed.
break;
}
}
/**@brief Function for handling Immediate Alert events.
*
* @details This function will be called for all Immediate Alert events which are passed to the
* application.
*
* @param[in] p_ias Immediate Alert structure.
* @param[in] p_evt Event received from the Immediate Alert service.
*/
static void on_ias_evt(ble_ias_t * p_ias, ble_ias_evt_t * p_evt)
{
switch (p_evt->evt_type)
{
case BLE_IAS_EVT_ALERT_LEVEL_UPDATED:
alert_signal(p_evt->params.alert_level);
break;//BLE_IAS_EVT_ALERT_LEVEL_UPDATED
default:
// No implementation needed.
break;
}
}
/**@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:
alert_signal(p_evt->params.alert_level);
break;//BLE_LLS_EVT_LINK_LOSS_ALERT
default:
// No implementation needed.
break;
}
}
/**@brief Function for handling IAS Client events.
*
* @details This function will be called for all IAS Client events which are passed to the
* application.
*
* @param[in] p_ias_c IAS Client structure.
* @param[in] p_evt Event received.
*/
static void on_ias_c_evt(ble_ias_c_t * p_ias_c, ble_ias_c_evt_t * p_evt)
{
uint32_t err_code;
switch (p_evt->evt_type)
{
case BLE_IAS_C_EVT_DISCOVERY_COMPLETE:
// IAS is found on peer. The Find Me Locator functionality of this app will work.
err_code = ble_ias_c_handles_assign(&m_ias_c,
p_evt->conn_handle,
p_evt->alert_level.handle_value);
APP_ERROR_CHECK(err_code);
m_is_ias_present = true;
break;//BLE_IAS_C_EVT_DISCOVERY_COMPLETE
case BLE_IAS_C_EVT_DISCOVERY_FAILED:
// IAS is not found on peer. The Find Me Locator functionality of this app will NOT work.
break;//BLE_IAS_C_EVT_DISCOVERY_FAILED
case BLE_IAS_C_EVT_DISCONN_COMPLETE:
// Disable alert buttons
m_is_ias_present = false;
break;//BLE_IAS_C_EVT_DISCONN_COMPLETE
default:
break;
}
}
/**@brief Function for handling the Battery Service events.
*
* @details This function will be called for all Battery Service events which are passed to the
| application.
*
* @param[in] p_bas Battery Service structure.
* @param[in] p_evt Event received from the Battery Service.
*/
static void on_bas_evt(ble_bas_t * p_bas, ble_bas_evt_t * p_evt)
{
uint32_t err_code;
switch (p_evt->evt_type)
{
case BLE_BAS_EVT_NOTIFICATION_ENABLED:
// Start battery timer
err_code = app_timer_start(m_battery_timer_id, BATTERY_LEVEL_MEAS_INTERVAL, NULL);
APP_ERROR_CHECK(err_code);
break;//BLE_BAS_EVT_NOTIFICATION_ENABLED
case BLE_BAS_EVT_NOTIFICATION_DISABLED:
err_code = app_timer_stop(m_battery_timer_id);
APP_ERROR_CHECK(err_code);
break;//BLE_BAS_EVT_NOTIFICATION_DISABLED
default:
// No implementation needed.
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_GAP_EVT_DISCONNECTED:
err_code = bsp_indication_set(BSP_INDICATE_IDLE);
APP_ERROR_CHECK(err_code);
break;//BLE_GAP_EVT_DISCONNECTED
case BLE_GAP_EVT_CONNECTED:
{
err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
APP_ERROR_CHECK(err_code);
err_code = ble_db_discovery_start(&m_ble_db_discovery,
p_ble_evt->evt.gap_evt.conn_handle);
APP_ERROR_CHECK(err_code);
}break;//BLE_GAP_EVT_CONNECTED
case BLE_GATTC_EVT_TIMEOUT:
// Fall through.
case BLE_GATTS_EVT_TIMEOUT:
// Disconnect on GATT Server and Client timeout events.
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gattc_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;//BLE_GATTC_EVT_TIMEOUT and BLE_GATTS_EVT_TIMEOUT
case BLE_EVT_USER_MEM_REQUEST:
err_code = sd_ble_user_mem_reply(p_ble_evt->evt.gattc_evt.conn_handle, NULL);
APP_ERROR_CHECK(err_code);
break;//BLE_EVT_USER_MEM_REQUEST
case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
{
ble_gatts_rw_authorize_reply_params_t auth_reply;
if(p_ble_evt->evt.gatts_evt.params.authorize_request.type
!= BLE_GATTS_AUTHORIZE_TYPE_INVALID)
{
if ((p_ble_evt->evt.gatts_evt.params.authorize_request.request.write.op
== BLE_GATTS_OP_PREP_WRITE_REQ)
|| (p_ble_evt->evt.gatts_evt.params.authorize_request.request.write.op
== BLE_GATTS_OP_EXEC_WRITE_REQ_NOW)
|| (p_ble_evt->evt.gatts_evt.params.authorize_request.request.write.op
== BLE_GATTS_OP_EXEC_WRITE_REQ_CANCEL))
{
if (p_ble_evt->evt.gatts_evt.params.authorize_request.type
== BLE_GATTS_AUTHORIZE_TYPE_WRITE)
{
auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_WRITE;
}
else
{
auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_READ;
}
auth_reply.params.write.gatt_status = APP_FEATURE_NOT_SUPPORTED;
err_code = sd_ble_gatts_rw_authorize_reply(p_ble_evt->evt.gattc_evt.conn_handle,
&auth_reply);
APP_ERROR_CHECK(err_code);
}
}
}break;//BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST
default:
// No implementation needed.
break;
}
}
/**@brief Function for dispatching a BLE stack event to all modules with a BLE stack event handler.