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2025-08-19 09:49:41 +08:00
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components/ble/ble_services/ble_bas_c/ble_bas_c.c Normal file
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/**
* Copyright (c) 2012 - 2020, 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
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* 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.
*
*/
#include "sdk_common.h"
#if NRF_MODULE_ENABLED(BLE_BAS_C)
#include "ble_bas_c.h"
#include "ble_types.h"
#include "ble_db_discovery.h"
#include "ble_gattc.h"
#define NRF_LOG_MODULE_NAME ble_bas_c
#include "nrf_log.h"
NRF_LOG_MODULE_REGISTER();
/**@brief Function for intercepting errors of GATTC and BLE GATT Queue.
*
* @param[in] nrf_error Error code.
* @param[in] p_ctx Parameter from the event handler.
* @param[in] conn_handle Connection handle.
*/
static void gatt_error_handler(uint32_t nrf_error,
void * p_ctx,
uint16_t conn_handle)
{
ble_bas_c_t * p_bas_c = (ble_bas_c_t *)p_ctx;
NRF_LOG_DEBUG("A GATT Client error has occurred on conn_handle: 0X%X", conn_handle);
if (p_bas_c->error_handler != NULL)
{
p_bas_c->error_handler(nrf_error);
}
}
/**@brief Function for handling read response events.
*
* @details This function validates the read response and raises the appropriate
* event to the application.
*
* @param[in] p_bas_c Pointer to the Battery Service Client Structure.
* @param[in] p_ble_evt Pointer to the SoftDevice event.
*/
static void on_read_rsp(ble_bas_c_t * p_bas_c, ble_evt_t const * p_ble_evt)
{
const ble_gattc_evt_read_rsp_t * p_response;
// Check if the event is on the link for this instance.
if (p_bas_c->conn_handle != p_ble_evt->evt.gattc_evt.conn_handle)
{
return;
}
p_response = &p_ble_evt->evt.gattc_evt.params.read_rsp;
if (p_response->handle == p_bas_c->peer_bas_db.bl_handle)
{
ble_bas_c_evt_t evt;
evt.conn_handle = p_ble_evt->evt.gattc_evt.conn_handle;
evt.evt_type = BLE_BAS_C_EVT_BATT_READ_RESP;
evt.params.battery_level = p_response->data[0];
p_bas_c->evt_handler(p_bas_c, &evt);
}
}
/**@brief Function for handling Handle Value Notification received from the SoftDevice.
*
* @details This function handles the Handle Value Notification received from the SoftDevice
* and checks whether it is a notification of the Battery Level measurement from the peer. If
* it is, this function decodes the battery level measurement and sends it to the
* application.
*
* @param[in] p_ble_bas_c Pointer to the Battery Service Client structure.
* @param[in] p_ble_evt Pointer to the BLE event received.
*/
static void on_hvx(ble_bas_c_t * p_ble_bas_c, ble_evt_t const * p_ble_evt)
{
// Check if the event is on the link for this instance.
if (p_ble_bas_c->conn_handle != p_ble_evt->evt.gattc_evt.conn_handle)
{
return;
}
// Check if this notification is a battery level notification.
if (p_ble_evt->evt.gattc_evt.params.hvx.handle == p_ble_bas_c->peer_bas_db.bl_handle)
{
if (p_ble_evt->evt.gattc_evt.params.hvx.len == 1)
{
ble_bas_c_evt_t ble_bas_c_evt;
ble_bas_c_evt.conn_handle = p_ble_evt->evt.gattc_evt.conn_handle;
ble_bas_c_evt.evt_type = BLE_BAS_C_EVT_BATT_NOTIFICATION;
ble_bas_c_evt.params.battery_level = p_ble_evt->evt.gattc_evt.params.hvx.data[0];
p_ble_bas_c->evt_handler(p_ble_bas_c, &ble_bas_c_evt);
}
}
}
void ble_bas_on_db_disc_evt(ble_bas_c_t * p_ble_bas_c, const ble_db_discovery_evt_t * p_evt)
{
// Check if the Battery Service was discovered.
if (p_evt->evt_type == BLE_DB_DISCOVERY_COMPLETE
&&
p_evt->params.discovered_db.srv_uuid.uuid == BLE_UUID_BATTERY_SERVICE
&&
p_evt->params.discovered_db.srv_uuid.type == BLE_UUID_TYPE_BLE)
{
// Find the CCCD Handle of the Battery Level characteristic.
uint8_t i;
ble_bas_c_evt_t evt;
evt.evt_type = BLE_BAS_C_EVT_DISCOVERY_COMPLETE;
evt.conn_handle = p_evt->conn_handle;
for (i = 0; i < p_evt->params.discovered_db.char_count; i++)
{
if (p_evt->params.discovered_db.charateristics[i].characteristic.uuid.uuid ==
BLE_UUID_BATTERY_LEVEL_CHAR)
{
// Found Battery Level characteristic. Store CCCD handle and break.
evt.params.bas_db.bl_cccd_handle =
p_evt->params.discovered_db.charateristics[i].cccd_handle;
evt.params.bas_db.bl_handle =
p_evt->params.discovered_db.charateristics[i].characteristic.handle_value;
break;
}
}
NRF_LOG_DEBUG("Battery Service discovered at peer.");
//If the instance has been assigned prior to db_discovery, assign the db_handles.
if (p_ble_bas_c->conn_handle != BLE_CONN_HANDLE_INVALID)
{
if ((p_ble_bas_c->peer_bas_db.bl_cccd_handle == BLE_GATT_HANDLE_INVALID)&&
(p_ble_bas_c->peer_bas_db.bl_handle == BLE_GATT_HANDLE_INVALID))
{
p_ble_bas_c->peer_bas_db = evt.params.bas_db;
}
}
p_ble_bas_c->evt_handler(p_ble_bas_c, &evt);
}
else if ((p_evt->evt_type == BLE_DB_DISCOVERY_SRV_NOT_FOUND) ||
(p_evt->evt_type == BLE_DB_DISCOVERY_ERROR))
{
NRF_LOG_DEBUG("Battery Service discovery failure at peer. ");
}
else
{
// Do nothing.
}
}
/**@brief Function for creating a message for writing to the CCCD.
*/
static uint32_t cccd_configure(ble_bas_c_t * p_ble_bas_c, bool notification_enable)
{
NRF_LOG_DEBUG("Configuring CCCD. CCCD Handle = %d, Connection Handle = %d",
p_ble_bas_c->peer_bas_db.bl_cccd_handle,
p_ble_bas_c->conn_handle);
nrf_ble_gq_req_t bas_c_req;
uint8_t cccd[BLE_CCCD_VALUE_LEN];
uint16_t cccd_val = notification_enable ? BLE_GATT_HVX_NOTIFICATION : 0;
cccd[0] = LSB_16(cccd_val);
cccd[1] = MSB_16(cccd_val);
memset(&bas_c_req, 0, sizeof(bas_c_req));
bas_c_req.type = NRF_BLE_GQ_REQ_GATTC_WRITE;
bas_c_req.error_handler.cb = gatt_error_handler;
bas_c_req.error_handler.p_ctx = p_ble_bas_c;
bas_c_req.params.gattc_write.handle = p_ble_bas_c->peer_bas_db.bl_cccd_handle;
bas_c_req.params.gattc_write.len = BLE_CCCD_VALUE_LEN;
bas_c_req.params.gattc_write.p_value = cccd;
bas_c_req.params.gattc_write.offset = 0;
bas_c_req.params.gattc_write.write_op = BLE_GATT_OP_WRITE_REQ;
return nrf_ble_gq_item_add(p_ble_bas_c->p_gatt_queue, &bas_c_req, p_ble_bas_c->conn_handle);
}
uint32_t ble_bas_c_init(ble_bas_c_t * p_ble_bas_c, ble_bas_c_init_t * p_ble_bas_c_init)
{
VERIFY_PARAM_NOT_NULL(p_ble_bas_c);
VERIFY_PARAM_NOT_NULL(p_ble_bas_c_init);
ble_uuid_t bas_uuid;
bas_uuid.type = BLE_UUID_TYPE_BLE;
bas_uuid.uuid = BLE_UUID_BATTERY_SERVICE;
p_ble_bas_c->conn_handle = BLE_CONN_HANDLE_INVALID;
p_ble_bas_c->peer_bas_db.bl_cccd_handle = BLE_GATT_HANDLE_INVALID;
p_ble_bas_c->peer_bas_db.bl_handle = BLE_GATT_HANDLE_INVALID;
p_ble_bas_c->evt_handler = p_ble_bas_c_init->evt_handler;
p_ble_bas_c->error_handler = p_ble_bas_c_init->error_handler;
p_ble_bas_c->p_gatt_queue = p_ble_bas_c_init->p_gatt_queue;
return ble_db_discovery_evt_register(&bas_uuid);
}
/**@brief Function for handling the Disconnected event received from the SoftDevice.
*
* @details This function checks whether the disconnect event is happening on the link
* associated with the current instance of the module. If the event is happening,
* the function sets the instance's conn_handle to invalid.
*
* @param[in] p_ble_bas_c Pointer to the Battery Service Client structure.
* @param[in] p_ble_evt Pointer to the BLE event received.
*/
static void on_disconnected(ble_bas_c_t * p_ble_bas_c, const ble_evt_t * p_ble_evt)
{
if (p_ble_bas_c->conn_handle == p_ble_evt->evt.gap_evt.conn_handle)
{
p_ble_bas_c->conn_handle = BLE_CONN_HANDLE_INVALID;
p_ble_bas_c->peer_bas_db.bl_cccd_handle = BLE_GATT_HANDLE_INVALID;
p_ble_bas_c->peer_bas_db.bl_handle = BLE_GATT_HANDLE_INVALID;
}
}
void ble_bas_c_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context)
{
if ((p_ble_evt == NULL) || (p_context == NULL))
{
return;
}
ble_bas_c_t * p_ble_bas_c = (ble_bas_c_t *)p_context;
switch (p_ble_evt->header.evt_id)
{
case BLE_GATTC_EVT_HVX:
on_hvx(p_ble_bas_c, p_ble_evt);
break;
case BLE_GATTC_EVT_READ_RSP:
on_read_rsp(p_ble_bas_c, p_ble_evt);
break;
case BLE_GAP_EVT_DISCONNECTED:
on_disconnected(p_ble_bas_c, p_ble_evt);
break;
default:
break;
}
}
uint32_t ble_bas_c_bl_notif_enable(ble_bas_c_t * p_ble_bas_c)
{
VERIFY_PARAM_NOT_NULL(p_ble_bas_c);
if (p_ble_bas_c->conn_handle == BLE_CONN_HANDLE_INVALID)
{
return NRF_ERROR_INVALID_STATE;
}
return cccd_configure(p_ble_bas_c, true);
}
uint32_t ble_bas_c_bl_read(ble_bas_c_t * p_ble_bas_c)
{
VERIFY_PARAM_NOT_NULL(p_ble_bas_c);
if (p_ble_bas_c->conn_handle == BLE_CONN_HANDLE_INVALID)
{
return NRF_ERROR_INVALID_STATE;
}
nrf_ble_gq_req_t bas_c_req;
memset(&bas_c_req, 0, sizeof(bas_c_req));
bas_c_req.type = NRF_BLE_GQ_REQ_GATTC_READ;
bas_c_req.error_handler.cb = gatt_error_handler;
bas_c_req.error_handler.p_ctx = p_ble_bas_c;
bas_c_req.params.gattc_read.handle = p_ble_bas_c->peer_bas_db.bl_handle;
return nrf_ble_gq_item_add(p_ble_bas_c->p_gatt_queue, &bas_c_req, p_ble_bas_c->conn_handle);
}
uint32_t ble_bas_c_handles_assign(ble_bas_c_t * p_ble_bas_c,
uint16_t conn_handle,
ble_bas_c_db_t * p_peer_handles)
{
VERIFY_PARAM_NOT_NULL(p_ble_bas_c);
p_ble_bas_c->conn_handle = conn_handle;
if (p_peer_handles != NULL)
{
p_ble_bas_c->peer_bas_db = *p_peer_handles;
}
return nrf_ble_gq_conn_handle_register(p_ble_bas_c->p_gatt_queue, conn_handle);
}
#endif // NRF_MODULE_ENABLED(BLE_BAS_C)

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/**
* Copyright (c) 2012 - 2020, 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
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* 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.
*
*/
/**@file
*
* @defgroup ble_bas_c Battery Service Client
* @{
* @ingroup ble_sdk_srv
* @brief Battery Service Client module.
*
* @details This module contains APIs to read and interact with the Battery Service of a remote
* device.
*
* @note The application must register this module as the BLE event observer by using the
* NRF_SDH_BLE_OBSERVER macro. Example:
* @code
* ble_bas_c_t instance;
* NRF_SDH_BLE_OBSERVER(anything, BLE_BAS_C_BLE_OBSERVER_PRIO,
* ble_bas_c_on_ble_evt, &instance);
* @endcode
*/
#ifndef BLE_BAS_C_H__
#define BLE_BAS_C_H__
#include <stdint.h>
#include "ble.h"
#include "ble_db_discovery.h"
#include "ble_srv_common.h"
#include "nrf_ble_gq.h"
#include "nrf_sdh_ble.h"
#ifdef __cplusplus
extern "C" {
#endif
/**@brief Macro for defining a ble_bas_c instance.
*
* @param _name Name of the instance.
* @hideinitializer
*/
#define BLE_BAS_C_DEF(_name) \
static ble_bas_c_t _name; \
NRF_SDH_BLE_OBSERVER(_name ## _obs, \
BLE_BAS_C_BLE_OBSERVER_PRIO, \
ble_bas_c_on_ble_evt, &_name)
/** @brief Macro for defining multiple ble_bas_c instances.
*
* @param _name Name of the array of instances.
* @param _cnt Number of instances to define.
* @hideinitializer
*/
#define BLE_BAS_C_ARRAY_DEF(_name, _cnt) \
static ble_bas_c_t _name[_cnt]; \
NRF_SDH_BLE_OBSERVERS(_name ## _obs, \
BLE_BAS_C_BLE_OBSERVER_PRIO, \
ble_bas_c_on_ble_evt, &_name, _cnt)
/**
* @defgroup bas_c_enums Enumerations
* @{
*/
/**@brief Battery Service Client event type. */
typedef enum
{
BLE_BAS_C_EVT_DISCOVERY_COMPLETE, /**< Event indicating that the Battery Service was discovered at the peer. */
BLE_BAS_C_EVT_BATT_NOTIFICATION, /**< Event indicating that a notification of the Battery Level characteristic was received from the peer. */
BLE_BAS_C_EVT_BATT_READ_RESP /**< Event indicating that a read response on Battery Level characteristic was received from the peer. */
} ble_bas_c_evt_type_t;
/** @} */
/**
* @defgroup bas_c_structs Structures
* @{
*/
/**@brief Structure containing the handles related to the Battery Service found on the peer. */
typedef struct
{
uint16_t bl_cccd_handle; /**< Handle of the CCCD of the Battery Level characteristic. */
uint16_t bl_handle; /**< Handle of the Battery Level characteristic, as provided by the SoftDevice. */
} ble_bas_c_db_t;
/**@brief Battery Service Client Event structure. */
typedef struct
{
ble_bas_c_evt_type_t evt_type; /**< Event Type. */
uint16_t conn_handle; /**< Connection handle relevant to this event.*/
union
{
ble_bas_c_db_t bas_db; /**< Handles related to the Battery Service, found on the peer device. This is filled if the evt_type is @ref BLE_BAS_C_EVT_DISCOVERY_COMPLETE.*/
uint8_t battery_level; /**< Information about the battery level, received from peer. This field is used for the events @ref BLE_BAS_C_EVT_BATT_NOTIFICATION and @ref BLE_BAS_C_EVT_BATT_READ_RESP.*/
} params;
} ble_bas_c_evt_t;
/** @} */
/**
* @defgroup bas_c_types Types
* @{
*/
// Forward declaration of the ble_bas_t type.
typedef struct ble_bas_c_s ble_bas_c_t;
/**@brief Event handler type.
*
* @details This is the type of the event handler that is to be provided by the application
* of the BAS module to receive events.
*/
typedef void (* ble_bas_c_evt_handler_t) (ble_bas_c_t * p_bas_bas_c, ble_bas_c_evt_t * p_evt);
/** @} */
/**
* @addtogroup bas_c_structs
* @{
*/
/**@brief Battery Service Client structure. */
struct ble_bas_c_s
{
uint16_t conn_handle; /**< Connection handle, as provided by the SoftDevice. */
ble_bas_c_db_t peer_bas_db; /**< Handles related to BAS on the peer.*/
ble_bas_c_evt_handler_t evt_handler; /**< Application event handler to be called when there is an event related to the Battery Service. */
ble_srv_error_handler_t error_handler; /**< Function to be called in case of an error. */
nrf_ble_gq_t * p_gatt_queue; /**< Pointer to the BLE GATT Queue instance. */
};
/**@brief Battery Service Client initialization structure. */
typedef struct
{
ble_bas_c_evt_handler_t evt_handler; /**< Event handler to be called by the Battery Service Client module when there is an event related to the Battery Service. */
ble_srv_error_handler_t error_handler; /**< Function to be called in case of an error. */
nrf_ble_gq_t * p_gatt_queue; /**< Pointer to the BLE GATT Queue instance. */
} ble_bas_c_init_t;
/** @} */
/**
* @defgroup bas_c_functions Functions
* @{
*/
/**@brief Function for initializing the Battery Service Client module.
*
* @details This function initializes the module and sets up database discovery to discover
* the Battery Service. After calling this function, call @ref ble_db_discovery_start
* to start discovery once a link with a peer has been established.
*
* @param[out] p_ble_bas_c Pointer to the Battery Service Client structure.
* @param[in] p_ble_bas_c_init Pointer to the Battery Service initialization structure that contains
* the initialization information.
*
* @retval NRF_SUCCESS Operation success.
* @retval NRF_ERROR_NULL A parameter is NULL.
* @retval err_code Otherwise, an error code returned by @ref ble_db_discovery_evt_register.
*/
uint32_t ble_bas_c_init(ble_bas_c_t * p_ble_bas_c, ble_bas_c_init_t * p_ble_bas_c_init);
/**@brief Function for handling BLE events from the SoftDevice.
*
* @details This function handles the BLE events received from the SoftDevice. If a BLE
* event is relevant to the Battery Service Client module, the function uses the event's data to update
* interval variables and, if necessary, send events to the application.
*
* @note This function must be called by the application.
*
* @param[in] p_ble_evt Pointer to the BLE event.
* @param[in] p_context Pointer to the Battery Service client structure.
*/
void ble_bas_c_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context);
/**@brief Function for enabling notifications on the Battery Level characteristic.
*
* @details This function enables the notification of the Battery Level characteristic at the
* peer by writing to the CCCD of the Battery Level Characteristic.
*
* @param p_ble_bas_c Pointer to the Battery Service client structure.
*
* @retval NRF_SUCCESS If the SoftDevice has been requested to write to the CCCD of the peer.
* @retval NRF_ERROR_NULL Parameter is NULL.
* @retval err_code Otherwise, an error code returned by the SoftDevice API @ref
* sd_ble_gattc_write.
*/
uint32_t ble_bas_c_bl_notif_enable(ble_bas_c_t * p_ble_bas_c);
/**@brief Function for reading the Battery Level characteristic.
*
* @param p_ble_bas_c Pointer to the Battery Service client structure.
*
* @retval NRF_SUCCESS If the read request was successfully queued to be sent to peer.
*/
uint32_t ble_bas_c_bl_read(ble_bas_c_t * p_ble_bas_c);
/**@brief Function for handling events from the Database Discovery module.
*
* @details Call this function when you get a callback event from the Database Discovery module.
* This function handles an event from the Database Discovery module, and determines
* whether it relates to the discovery of Battery Service at the peer. If it does, this function
* calls the application's event handler to indicate that the Battery Service was
* discovered at the peer. The function also populates the event with service-related
* information before providing it to the application.
*
* @param p_ble_bas_c Pointer to the Battery Service client structure.
* @param[in] p_evt Pointer to the event received from the Database Discovery module.
*
*/
void ble_bas_on_db_disc_evt(ble_bas_c_t * p_ble_bas_c, ble_db_discovery_evt_t const * p_evt);
/**@brief Function for assigning handles to this instance of bas_c.
*
* @details Call this function when a link has been established with a peer to
* associate the link to this instance of the module. This makes it
* possible to handle several links and associate each link to a particular
* instance of this module. The connection handle and attribute handles are
* provided from the discovery event @ref BLE_BAS_C_EVT_DISCOVERY_COMPLETE.
*
* @param[in] p_ble_bas_c Pointer to the Battery client structure instance for associating the link.
* @param[in] conn_handle Connection handle associated with the given Battery Client Instance.
* @param[in] p_peer_handles Attribute handles on the BAS server you want this BAS client to
* interact with.
*/
uint32_t ble_bas_c_handles_assign(ble_bas_c_t * p_ble_bas_c,
uint16_t conn_handle,
ble_bas_c_db_t * p_peer_handles);
/** @} */ // End tag for Function group.
#ifdef __cplusplus
}
#endif
#endif // BLE_BAS_C_H__
/** @} */ // End tag for the file.