Hello, everyone
I used NRF52832 as the center and tried to connect to a peripheral, but after connecting for a fixed period of time, the center would actively disconnect from the peripheral. This problem is inevitable. This seems to be the result of an abnormal connector? And unfortunately, I couldn't fix the problem by modifying the peripheral configuration, only by modifying the center code.
The central application code is very simple, just a serial port passthrough service, and handles AT instructions from the serial port.
I provided the sniffer's log file, the center's main code file, and the Soc's log file.
Thank you
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<info> app: result=AT+CONN, cmp_len=7, ok_count=7, leng=21, at_code=7
<debug> ble_scan: Filter set on address 0x
<debug> ble_scan: B6 FF 93 37 1D CA |...7..
<debug> ble_scan: Scanning
<debug> ble_scan: Connecting
<debug> ble_scan: Connection status: 0
<debug> nrf_ble_gatt: Requesting to update ATT MTU to 247 bytes on connection 0x0.
<debug> nrf_ble_gatt: Updating data length to 251 on connection 0x0.
<info> app: Connecting to target B6FF93371DCA
<debug> nrf_ble_gq: Purging request queue with id: 0
<debug> nrf_ble_gq: Registering connection handle: 0x0000
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
<info> app: result=AT+CONN, cmp_len=7, ok_count=7, leng=21, at_code=7 <debug> ble_scan: Filter set on address 0x <debug> ble_scan: B6 FF 93 37 1D CA |...7.. <debug> ble_scan: Scanning <debug> ble_scan: Connecting <debug> ble_scan: Connection status: 0 <debug> nrf_ble_gatt: Requesting to update ATT MTU to 247 bytes on connection 0x0. <debug> nrf_ble_gatt: Updating data length to 251 on connection 0x0. <info> app: Connecting to target B6FF93371DCA <debug> nrf_ble_gq: Purging request queue with id: 0 <debug> nrf_ble_gq: Registering connection handle: 0x0000 <debug> ble_db_disc: Starting discovery of service with UUID 0xAE30 on connection handle 0x0. <debug> nrf_ble_gq: Adding item to the request queue <debug> nrf_ble_gq: GATTC Primary Services Discovery Request <debug> nrf_ble_gq: SD is currently busy. The GATT request procedure will be attempted again later. <debug> nrf_ble_gq: Processing the request queue... <debug> nrf_ble_gq: GATTC Primary Service Discovery Request <debug> nrf_ble_gq: SD is currently busy. The GATT request procedure will be attempted again later. <debug> nrf_ble_gatt: Data length updated to 27 on connection 0x0. <debug> nrf_ble_gatt: max_rx_octets: 27 <debug> nrf_ble_gatt: max_tx_octets: 27 <debug> nrf_ble_gatt: max_rx_time: 328 <debug> nrf_ble_gatt: max_tx_time: 328 <debug> nrf_ble_gq: Processing the request queue... <debug> nrf_ble_gq: GATTC Primary Service Discovery Request <error> nrf_ble_gq: SD GATT procedure (2) failed on connection handle 0 with error: 0x0000000D. <debug> app: GATT Client Timeout. <info> app: Disconnected. <info> app: Disconnected. conn_handle: 0x0, reason: 0x16
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<info> app: result=AT+CONN, cmp_len=7, ok_count=7, leng=21, at_code=7
<debug> ble_scan: Filter set on address 0x
<debug> ble_scan: B6 FF 93 37 1D CA |...7..
<debug> ble_scan: Scanning
<debug> ble_scan: Connecting
<debug> ble_scan: Connection status: 0
<debug> nrf_ble_gatt: Requesting to update ATT MTU to 247 bytes on connection 0x0.
<debug> nrf_ble_gatt: Updating data length to 251 on connection 0x0.
<info> app: Connecting to target B6FF93371DCA
<debug> nrf_ble_gq: Purging request queue with id: 0
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
<info> app: result=AT+CONN, cmp_len=7, ok_count=7, leng=21, at_code=7 <debug> ble_scan: Filter set on address 0x <debug> ble_scan: B6 FF 93 37 1D CA |...7.. <debug> ble_scan: Scanning <debug> ble_scan: Connecting <debug> ble_scan: Connection status: 0 <debug> nrf_ble_gatt: Requesting to update ATT MTU to 247 bytes on connection 0x0. <debug> nrf_ble_gatt: Updating data length to 251 on connection 0x0. <info> app: Connecting to target B6FF93371DCA <debug> nrf_ble_gq: Purging request queue with id: 0 <debug> nrf_ble_gq: Registering connection handle: 0x0000 <debug> ble_db_disc: Starting discovery of service with UUID 0xAE30 on connection handle 0x0. <debug> nrf_ble_gq: Adding item to the request queue <debug> nrf_ble_gq: GATTC Primary Services Discovery Request <debug> nrf_ble_gq: SD is currently busy. The GATT request procedure will be attempted again later. <debug> nrf_ble_gq: Processing the request queue... <debug> nrf_ble_gq: GATTC Primary Service Discovery Request <debug> nrf_ble_gq: SD is currently busy. The GATT request procedure will be attempted again later. <debug> nrf_ble_gatt: Data length updated to 27 on connection 0x0. <debug> nrf_ble_gatt: max_rx_octets: 27 <debug> nrf_ble_gatt: max_tx_octets: 27 <debug> nrf_ble_gatt: max_rx_time: 328 <debug> nrf_ble_gatt: max_tx_time: 328 <debug> nrf_ble_gq: Processing the request queue... <debug> nrf_ble_gq: GATTC Primary Service Discovery Request <error> nrf_ble_gq: SD GATT procedure (2) failed on connection handle 0 with error: 0x0000000D. <debug> app: GATT Client Timeout. <info> app: Disconnected. <info> app: Disconnected. conn_handle: 0x0, reason: 0x16
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/**
* Copyright (c) 2016 - 2021, 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
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
/**
* Copyright (c) 2016 - 2021, 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 <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include "nordic_common.h"
#include "app_error.h"
#include "app_uart.h"
#include "ble_db_discovery.h"
#include "app_timer.h"
#include "app_util.h"
#include "bsp_btn_ble.h"
#include "ble.h"
#include "ble_gap.h"
#include "ble_hci.h"
#include "nrf_sdh.h"
#include "nrf_sdh_ble.h"
#include "nrf_sdh_soc.h"
#include "ble_nus_c.h"
#include "nrf_ble_gatt.h"
#include "nrf_pwr_mgmt.h"
#include "nrf_ble_scan.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#include "ble_conn_state.h"
#include "at_cmd.h"
#define VERSION_STRING_APP "ver:V1.0.0 build:"__DATE__" "__TIME__
static uint32_t find_adv_name(const ble_gap_evt_adv_report_t *p_adv_report, uint8_t *p_name);
static void AT_SCNT_Handler(uint8_t *p_data, uint16_t data_len);
static void AT_SCAN_Handler(uint8_t *p_data, uint16_t data_len);
static void AT_COMI_Handler(uint8_t *p_data, uint16_t data_len);
static void AT_COMA_Handler(uint8_t *p_data, uint16_t data_len);
static void AT_COLA_Handler(uint8_t *p_data, uint16_t data_len);
static void AT_COSU_Handler(uint8_t *p_data, uint16_t data_len);
static void AT_CONN_Handler(uint8_t *p_data, uint16_t data_len);
static void AT_CONC_Handler(uint8_t *p_data, uint16_t data_len);
static void AT_DISC_Handler(uint8_t *p_data, uint16_t data_len);
static void AT_DATA_Handler(uint8_t *p_data, uint16_t data_len);
static void AT_VERS_Handler(uint8_t *p_data, uint16_t data_len);
static void AT_TEST_Handler(uint8_t *p_data, uint16_t data_len);
#define APP_BLE_CONN_CFG_TAG 1 /**< Tag that refers to the BLE stack configuration set with @ref sd_ble_cfg_set. The default tag is @ref BLE_CONN_CFG_TAG_DEFAULT. */
#define APP_BLE_OBSERVER_PRIO 3 /**< BLE observer priority of the application. There is no need to modify this value. */
#define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */
#define NUS_SERVICE_UUID_TYPE BLE_UUID_TYPE_VENDOR_BEGIN /**< UUID type for the Nordic UART Service (vendor specific). */
#define ECHOBACK_BLE_UART_DATA 0 /**< Echo the UART data that is received over the Nordic UART Service (NUS) back to the sender. */
BLE_NUS_C_ARRAY_DEF(m_ble_nus_c, NRF_SDH_BLE_CENTRAL_LINK_COUNT); /**< BLE Nordic UART Service (NUS) client instance. */
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
BLE_DB_DISCOVERY_ARRAY_DEF(m_db_disc, NRF_SDH_BLE_CENTRAL_LINK_COUNT); /**< Database discovery module instance. */
NRF_BLE_SCAN_DEF(m_scan); /**< Scanning Module instance. */
NRF_BLE_GQ_DEF(m_ble_gatt_queue, /**< BLE GATT Queue instance. */
NRF_SDH_BLE_CENTRAL_LINK_COUNT,
NRF_BLE_GQ_QUEUE_SIZE);
static uint16_t m_ble_nus_max_data_len = BLE_GATT_ATT_MTU_DEFAULT - OPCODE_LENGTH - HANDLE_LENGTH; /**< Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */
#define SCAN_NAME_BUFFER_SIZE (NRF_BLE_SCAN_NAME_MAX_LEN) /*��ʱ�洢�㲥���֣�*/
#define SCAN_TIMEOUT_DEFAULT (500)/**< Scan timeout in 10 ms units. @sa BLE_GAP_SCAN_TIMEOUT. */
static ble_gap_scan_params_t m_scan_param =
{
.active = 0x01,
.interval = NRF_BLE_SCAN_SCAN_INTERVAL,
.window = NRF_BLE_SCAN_SCAN_WINDOW,
.filter_policy = BLE_GAP_SCAN_FP_ACCEPT_ALL,
.timeout = SCAN_TIMEOUT_DEFAULT,
.scan_phys = BLE_GAP_PHY_1MBPS,// 1 Mbps PHY
};
static ble_gap_conn_params_t m_conn_param =
{
.min_conn_interval = (uint16_t)MSEC_TO_UNITS(NRF_BLE_SCAN_MIN_CONNECTION_INTERVAL, UNIT_1_25_MS), /**< Minimum Connection Interval in 1.25 ms units, see @ref BLE_GAP_CP_LIMITS.*/
.max_conn_interval = (uint16_t)MSEC_TO_UNITS(NRF_BLE_SCAN_MAX_CONNECTION_INTERVAL, UNIT_1_25_MS), /**< Maximum Connection Interval in 1.25 ms units, see @ref BLE_GAP_CP_LIMITS.*/
.slave_latency = (uint16_t)NRF_BLE_SCAN_SLAVE_LATENCY, /**< Slave Latency in number of connection events, see @ref BLE_GAP_CP_LIMITS.*/
.conn_sup_timeout = (uint16_t)MSEC_TO_UNITS(NRF_BLE_SCAN_SUPERVISION_TIMEOUT, UNIT_10_MS), /**< Connection Supervision Timeout in 10 ms units, see @ref BLE_GAP_CP_LIMITS.*/
};
#define UART_TIMER_TIMEOUT (30)
APP_TIMER_DEF(m_uart_rx_tmr);
static uint8_t uart_rx_buf[BLE_NUS_MAX_DATA_LEN];
static uint8_t uart_rx_index = 0;
static uint16_t uart_rx_leng = 0;
/* at command define */
static volatile uint8_t at_received = 0; //at data has received
static volatile at_code_typ at_process = AT_NULL;
at_member_str const at_member_array[] = {
{AT_COMI, AT_COMI_CODE},
{AT_COMA, AT_COMA_CODE},
{AT_COLA, AT_COLA_CODE},
{AT_COSU, AT_COSU_CODE},
{AT_SCNT, AT_SCNT_CODE},
{AT_SCAN, AT_SCAN_CODE},
{AT_CONN, AT_CONN_CODE},
{AT_CONC, AT_CONC_CODE},
{AT_DISC, AT_DISC_CODE},
{AT_DATA, AT_DATA_CODE},
{AT_VERS, AT_VERS_CODE},
{AT_TEST, AT_TEST_CODE},
{NULL, AT_NULL}
};
/* current connection param define */
struct curr_conn_param_str {
uint8_t channel;
uint8_t filter_address[6];
} curr_conn_param = {0, 0, 0, 0, 0, 0, 0};
uint16_t conn_handle_array[2] = {BLE_CONN_HANDLE_INVALID,BLE_CONN_HANDLE_INVALID};
#define GET_CHANNEL_INDEX_BY_BLE_NUS_C(conn_handle_) (m_ble_nus_c[0].conn_handle == conn_handle_)?(0):(1)
#define GET_CHANNEL_INDEX_BY_CONN_HANDLE_ARR(conn_handle_) (conn_handle_array[0] == conn_handle_)?(0):(1)
#define GET_CHANNEL_ACTIVE(channel_) (m_ble_nus_c[channel_].conn_handle == BLE_CONN_HANDLE_INVALID)?(0):(1)
/**@brief NUS UUID.
static ble_uuid_t const m_nus_uuid =
{
.uuid = BLE_UUID_NUS_SERVICE,
.type = NUS_SERVICE_UUID_TYPE
};*/
/*
static uint8_t const m_name[] = "OTC Clarity Units-R";
static uint8_t const m_address[] = {0x11, 0x00, 0x40, 0x37, 0x03, 0x80};
*/
/**@brief Function for handling asserts in the SoftDevice.
*
* @details This function is called in case of an assert in the SoftDevice.
*
* @warning This handler is only an example and is not meant for the 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(0xDEADBEEF, line_num, p_file_name);
}
/**@brief Function for handling the Nordic UART Service Client errors.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void nus_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/*
static uint8_t const m_name_l[] = "OTC Clarity Units-L";
static uint8_t const m_address_l[] = {0x10, 0x00, 0x40, 0x37, 0x03, 0x80};
static void scan_reconfig(void)
{
ret_code_t err_code;
nrf_ble_scan_stop();
nrf_ble_scan_filters_disable(&m_scan);
nrf_ble_scan_all_filter_remove(&m_scan);
err_code = nrf_ble_scan_filter_set(&m_scan, SCAN_NAME_FILTER, m_name_l);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_NAME_FILTER, false);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filter_set(&m_scan, SCAN_ADDR_FILTER, m_address_l);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_ADDR_FILTER, false);
APP_ERROR_CHECK(err_code);
}
*/
/**@brief Function to start scanning. */
static void scan_start(void)
{
ret_code_t ret;
ret = nrf_ble_scan_start(&m_scan);
APP_ERROR_CHECK(ret);
// ret = bsp_indication_set(BSP_INDICATE_SCANNING);
// APP_ERROR_CHECK(ret);
}
//�����豸��ַ
void device_stor(ble_nus_c_t * p_ble_nus_c,ble_gap_evt_connected_t const * p_addr)
{
p_ble_nus_c->addr.addr[0] = p_addr->peer_addr.addr[0];
p_ble_nus_c->addr.addr[1] = p_addr->peer_addr.addr[1];
p_ble_nus_c->addr.addr[2] = p_addr->peer_addr.addr[2];
p_ble_nus_c->addr.addr[3] = p_addr->peer_addr.addr[3];
p_ble_nus_c->addr.addr[4] = p_addr->peer_addr.addr[4];
p_ble_nus_c->addr.addr[5] = p_addr->peer_addr.addr[5];
}
/**@brief Function for handling Scanning Module events.
*/
static void scan_evt_handler(scan_evt_t const * p_scan_evt)
{
ret_code_t err_code;
switch(p_scan_evt->scan_evt_id)
{
case NRF_BLE_SCAN_EVT_CONNECTING_ERROR:
{
err_code = p_scan_evt->params.connecting_err.err_code;
APP_ERROR_CHECK(err_code);
if (at_process == AT_CONN_CODE)
{
printf("OK+CONNE\r\n");
at_process = AT_NULL;
}
} break;
case NRF_BLE_SCAN_EVT_CONNECTED:
{
ble_gap_evt_connected_t const * p_connected =
p_scan_evt->params.connected.p_connected;
//device_stor(&m_ble_nus_c[p_scan_evt->params.connected.conn_handle],p_connected);
device_stor(&m_ble_nus_c[curr_conn_param.channel],p_connected);
// Scan is automatically stopped by the connection.
NRF_LOG_INFO("Connecting to target %02x%02x%02x%02x%02x%02x",
p_connected->peer_addr.addr[0],
p_connected->peer_addr.addr[1],
p_connected->peer_addr.addr[2],
p_connected->peer_addr.addr[3],
p_connected->peer_addr.addr[4],
p_connected->peer_addr.addr[5]
);
if (at_process == AT_CONN_CODE)
{
printf("OK+CONN%dS\r\n", curr_conn_param.channel);
at_process = AT_NULL;
}
} break;
case NRF_BLE_SCAN_EVT_SCAN_TIMEOUT:
{
NRF_LOG_INFO("Scan timed out.");
if (at_process == AT_SCAN_CODE)
{
if ((GET_CHANNEL_ACTIVE(0)) || (GET_CHANNEL_ACTIVE(1)))
{
if (GET_CHANNEL_ACTIVE(0))
{
bsp_indication_set(BSP_INDICATE_USER_SCANNER_END_ONLY_1);
}
else
{
bsp_indication_set(BSP_INDICATE_USER_SCANNER_END_ONLY_0);
}
}
else
{
bsp_indication_set(BSP_INDICATE_USER_SCANNER_END);
}
printf("OK+SCANE\r\n");
at_process = AT_NULL;
}
if (at_process == AT_CONN_CODE)
{
if (curr_conn_param.channel)
{
bsp_indication_set(BSP_INDICATE_USER_SCANNER_END_ONLY_1);
}
else
{
bsp_indication_set(BSP_INDICATE_USER_SCANNER_END_ONLY_0);
}
printf("OK+CONNF\r\n");
at_process = AT_NULL;
}
} break;
case NRF_BLE_SCAN_EVT_NOT_FOUND:
if (at_process == AT_SCAN_CODE)
{
uint8_t name_buffer[SCAN_NAME_BUFFER_SIZE];
memset(name_buffer, 0, SCAN_NAME_BUFFER_SIZE);
ble_gap_evt_adv_report_t const * p_adv = p_scan_evt->params.p_not_found;
if(find_adv_name(p_adv, name_buffer) != NRF_SUCCESS)
{
memset(name_buffer, 0, SCAN_NAME_BUFFER_SIZE);
}
else
{
printf("OK+SCAN%02X%02X%02X%02X%02X%02X:%d:%s\r\n",
p_adv->peer_addr.addr[0],
p_adv->peer_addr.addr[1],
p_adv->peer_addr.addr[2],
p_adv->peer_addr.addr[3],
p_adv->peer_addr.addr[4],
p_adv->peer_addr.addr[5],
p_adv->rssi,
name_buffer
);
}
}
break;
default:
break;
}
}
/**@brief Function for initializing the scanning and setting the filters.
*/
static void scan_init(bool use_filter)
{
ret_code_t err_code;
nrf_ble_scan_init_t init_scan;
memset(&init_scan, 0, sizeof(init_scan));
init_scan.connect_if_match = use_filter;
init_scan.conn_cfg_tag = APP_BLE_CONN_CFG_TAG;
init_scan.p_scan_param = &m_scan_param;
init_scan.p_conn_param = &m_conn_param;
err_code = nrf_ble_scan_init(&m_scan, &init_scan, scan_evt_handler);
APP_ERROR_CHECK(err_code);
if (use_filter)
{
err_code = nrf_ble_scan_filter_set(&m_scan, SCAN_ADDR_FILTER, curr_conn_param.filter_address);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_ADDR_FILTER, false);
APP_ERROR_CHECK(err_code);
}
else
{
err_code = nrf_ble_scan_filters_disable(&m_scan);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_all_filter_remove(&m_scan);
APP_ERROR_CHECK(err_code);
}
/*
err_code = nrf_ble_scan_filter_set(&m_scan, SCAN_NAME_FILTER, m_name);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_NAME_FILTER, false);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filter_set(&m_scan, SCAN_ADDR_FILTER, m_address);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_ADDR_FILTER, false);
APP_ERROR_CHECK(err_code);
*/
/*
err_code = nrf_ble_scan_filter_set(&m_scan, SCAN_UUID_FILTER, &m_nus_uuid);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_UUID_FILTER, false);
APP_ERROR_CHECK(err_code);
*/
}
/**@brief Function for handling database discovery events.
*
* @details This function is a callback function to handle events from the database discovery module.
* Depending on the UUIDs that are discovered, this function forwards 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_nus_c_on_db_disc_evt(&m_ble_nus_c[p_evt->conn_handle], p_evt);
ble_nus_c_on_db_disc_evt(&m_ble_nus_c[GET_CHANNEL_INDEX_BY_BLE_NUS_C(p_evt->conn_handle)], p_evt);
}
/**@brief Function for handling characters received by the Nordic UART Service (NUS).
*
* @details This function takes a list of characters of length data_len and prints the characters out on UART.
* If @ref ECHOBACK_BLE_UART_DATA is set, the data is sent back to sender.
*/
static void ble_nus_chars_received_uart_print(uint8_t * p_data, uint16_t data_len, uint8_t channel)
{
ret_code_t ret_val;
NRF_LOG_DEBUG("Receiving data.");
NRF_LOG_HEXDUMP_DEBUG(p_data, data_len);
printf("OK+DATA%d:%d:", channel, data_len);
for (uint32_t i = 0; i < data_len; i++)
{
do
{
ret_val = app_uart_put(p_data[i]);
if ((ret_val != NRF_SUCCESS) && (ret_val != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("app_uart_put failed for index 0x%04x.", i);
APP_ERROR_CHECK(ret_val);
}
} while (ret_val == NRF_ERROR_BUSY);
}
if (ECHOBACK_BLE_UART_DATA)
{
/*
// Send data back to the peripheral.
do
{
ret_val = ble_nus_c_string_send(&m_ble_nus_c, p_data, data_len);
if ((ret_val != NRF_SUCCESS) && (ret_val != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("Failed sending NUS message. Error 0x%x. ", ret_val);
APP_ERROR_CHECK(ret_val);
}
} while (ret_val == NRF_ERROR_BUSY);*/
}
}
/**@brief Function for handling app_uart events.
*
* @details This function receives a single character from the app_uart module and appends it to
* a string. The string is sent over BLE when the last character received is a
* 'new line' '\n' (hex 0x0A) or if the string reaches the maximum data length.
*/
void uart_event_handle(app_uart_evt_t * p_event)
{
switch (p_event->evt_type)
{
/**@snippet [Handling data from UART] */
case APP_UART_DATA_READY:
if ((at_process == AT_NULL) && (at_received == 0) && (uart_rx_index < sizeof(uart_rx_buf)))
{
UNUSED_VARIABLE(app_uart_get(&uart_rx_buf[uart_rx_index++]));
APP_ERROR_CHECK(app_timer_start(m_uart_rx_tmr, APP_TIMER_TICKS(UART_TIMER_TIMEOUT), NULL));
}
break;
/**@snippet [Handling data from UART] */
case APP_UART_COMMUNICATION_ERROR:
NRF_LOG_ERROR("Communication error occurred while handling UART.");
APP_ERROR_HANDLER(p_event->data.error_communication);
break;
case APP_UART_FIFO_ERROR:
NRF_LOG_ERROR("Error occurred in FIFO module used by UART.");
APP_ERROR_HANDLER(p_event->data.error_code);
break;
default:
break;
}
}
/**@brief Callback handling Nordic UART Service (NUS) client events.
*
* @details This function is called to notify the application of NUS client events.
*
* @param[in] p_ble_nus_c NUS client handle. This identifies the NUS client.
* @param[in] p_ble_nus_evt Pointer to the NUS client event.
*/
/**@snippet [Handling events from the ble_nus_c module] */
static void ble_nus_c_evt_handler(ble_nus_c_t * p_ble_nus_c, ble_nus_c_evt_t const * p_ble_nus_evt)
{
ret_code_t err_code;
switch (p_ble_nus_evt->evt_type)
{
case BLE_NUS_C_EVT_DISCOVERY_COMPLETE:
NRF_LOG_INFO("Discovery complete.");
err_code = ble_nus_c_handles_assign(p_ble_nus_c, p_ble_nus_evt->conn_handle, &p_ble_nus_evt->handles);
APP_ERROR_CHECK(err_code);
err_code = ble_nus_c_tx_notif_enable(p_ble_nus_c);
APP_ERROR_CHECK(err_code);
NRF_LOG_INFO("Connected to device with Nordic UART Service.");
break;
case BLE_NUS_C_EVT_NUS_TX_EVT:
NRF_LOG_INFO("receive data for mac: %02X %02X %02X %02X %02X %02X\r\n",
p_ble_nus_c->addr.addr[0],
p_ble_nus_c->addr.addr[1],
p_ble_nus_c->addr.addr[2],
p_ble_nus_c->addr.addr[3],
p_ble_nus_c->addr.addr[4],
p_ble_nus_c->addr.addr[5]
);
ble_nus_chars_received_uart_print(p_ble_nus_evt->p_data, p_ble_nus_evt->data_len, GET_CHANNEL_INDEX_BY_BLE_NUS_C(p_ble_nus_c->conn_handle));
break;
case BLE_NUS_C_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected.");
// scan_start();
break;
}
}
/**@snippet [Handling events from the ble_nus_c module] */
/**
* @brief Function for handling shutdown events.
*
* @param[in] event Shutdown type.
*/
static bool shutdown_handler(nrf_pwr_mgmt_evt_t event)
{
ret_code_t err_code;
err_code = bsp_indication_set(BSP_INDICATE_IDLE);
APP_ERROR_CHECK(err_code);
switch (event)
{
case NRF_PWR_MGMT_EVT_PREPARE_WAKEUP:
// Prepare wakeup buttons.
err_code = bsp_btn_ble_sleep_mode_prepare();
APP_ERROR_CHECK(err_code);
break;
default:
break;
}
return true;
}
NRF_PWR_MGMT_HANDLER_REGISTER(shutdown_handler, APP_SHUTDOWN_HANDLER_PRIORITY);
/**@brief Function for handling BLE events.
*
* @param[in] p_ble_evt Bluetooth stack event.
* @param[in] p_context Unused.
*/
static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
{
ret_code_t err_code;
ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
APP_ERROR_CHECK_BOOL(p_gap_evt->conn_handle < NRF_SDH_BLE_CENTRAL_LINK_COUNT);
//err_code = ble_nus_c_handles_assign(&m_ble_nus_c[p_gap_evt->conn_handle], p_ble_evt->evt.gap_evt.conn_handle, NULL);
err_code = ble_nus_c_handles_assign(&m_ble_nus_c[curr_conn_param.channel], p_ble_evt->evt.gap_evt.conn_handle, NULL);
APP_ERROR_CHECK(err_code);
conn_handle_array[curr_conn_param.channel] = p_ble_evt->evt.gap_evt.conn_handle;
err_code = bsp_indication_set((curr_conn_param.channel)?(BSP_INDICATE_USER_CHANNEL_1_ACTIVE):(BSP_INDICATE_USER_CHANNEL_0_ACTIVE));
APP_ERROR_CHECK(err_code);
// start discovery of services. The NUS Client waits for a discovery result
//err_code = ble_db_discovery_start(&m_db_disc[p_gap_evt->conn_handle], p_ble_evt->evt.gap_evt.conn_handle);
err_code = ble_db_discovery_start(&m_db_disc[curr_conn_param.channel], p_ble_evt->evt.gap_evt.conn_handle);
APP_ERROR_CHECK(err_code);
/*
if (ble_conn_state_central_conn_count() == NRF_SDH_BLE_CENTRAL_LINK_COUNT)
{
NRF_LOG_INFO("central counter two!");
}
else
{
// scan_reconfig();
// scan_start();
}*/
break;
case BLE_GAP_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected. conn_handle: 0x%x, reason: 0x%x",
p_gap_evt->conn_handle,
p_gap_evt->params.disconnected.reason);
printf("OK+LOST%d:%02X%02X%02X%02X%02X%02X\r\n", GET_CHANNEL_INDEX_BY_CONN_HANDLE_ARR(p_gap_evt->conn_handle),
m_ble_nus_c[GET_CHANNEL_INDEX_BY_CONN_HANDLE_ARR(p_gap_evt->conn_handle)].addr.addr[0],
m_ble_nus_c[GET_CHANNEL_INDEX_BY_CONN_HANDLE_ARR(p_gap_evt->conn_handle)].addr.addr[1],
m_ble_nus_c[GET_CHANNEL_INDEX_BY_CONN_HANDLE_ARR(p_gap_evt->conn_handle)].addr.addr[2],
m_ble_nus_c[GET_CHANNEL_INDEX_BY_CONN_HANDLE_ARR(p_gap_evt->conn_handle)].addr.addr[3],
m_ble_nus_c[GET_CHANNEL_INDEX_BY_CONN_HANDLE_ARR(p_gap_evt->conn_handle)].addr.addr[4],
m_ble_nus_c[GET_CHANNEL_INDEX_BY_CONN_HANDLE_ARR(p_gap_evt->conn_handle)].addr.addr[5]
);
err_code = bsp_indication_set(
(GET_CHANNEL_INDEX_BY_CONN_HANDLE_ARR(p_gap_evt->conn_handle))?
(BSP_INDICATE_USER_CHANNEL_1_INVALID):(BSP_INDICATE_USER_CHANNEL_0_INVALID));
APP_ERROR_CHECK(err_code);
conn_handle_array[GET_CHANNEL_INDEX_BY_CONN_HANDLE_ARR(p_gap_evt->conn_handle)] = BLE_CONN_HANDLE_INVALID;
break;
case BLE_GAP_EVT_TIMEOUT:
if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_CONN)
{
NRF_LOG_INFO("Connection Request timed out.");
}
if (at_process == AT_CONN_CODE)
{
printf("OK+CONNF\r\n");
at_process = AT_NULL;
}
break;
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
// Pairing not supported.
err_code = sd_ble_gap_sec_params_reply(p_ble_evt->evt.gap_evt.conn_handle, BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP, NULL, NULL);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST:
// Accepting parameters requested by peer.
err_code = sd_ble_gap_conn_param_update(p_gap_evt->conn_handle,
&p_gap_evt->params.conn_param_update_request.conn_params);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_PHY_UPDATE_REQUEST:
{
NRF_LOG_DEBUG("PHY update request.");
ble_gap_phys_t const phys =
{
.rx_phys = BLE_GAP_PHY_AUTO,
.tx_phys = BLE_GAP_PHY_AUTO,
};
err_code = sd_ble_gap_phy_update(p_ble_evt->evt.gap_evt.conn_handle, &phys);
APP_ERROR_CHECK(err_code);
} break;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
NRF_LOG_DEBUG("GATT Client Timeout.");
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;
case BLE_GATTS_EVT_TIMEOUT:
// Disconnect on GATT Server timeout event.
NRF_LOG_DEBUG("GATT Server Timeout.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gatts_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
default:
break;
}
}
/**@brief Function for initializing the BLE stack.
*
* @details Initializes the SoftDevice and the BLE event interrupt.
*/
static void ble_stack_init(void)
{
ret_code_t err_code;
err_code = nrf_sdh_enable_request();
APP_ERROR_CHECK(err_code);
// Configure the BLE stack using the default settings.
// Fetch the start address of the application RAM.
uint32_t ram_start = 0;
err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start);
APP_ERROR_CHECK(err_code);
// Enable BLE stack.
err_code = nrf_sdh_ble_enable(&ram_start);
APP_ERROR_CHECK(err_code);
// Register a handler for BLE events.
NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
}
/**@brief Function for handling events from the GATT library. */
void gatt_evt_handler(nrf_ble_gatt_t * p_gatt, nrf_ble_gatt_evt_t const * p_evt)
{
if (p_evt->evt_id == NRF_BLE_GATT_EVT_ATT_MTU_UPDATED)
{
NRF_LOG_INFO("ATT MTU exchange completed.");
m_ble_nus_max_data_len = p_evt->params.att_mtu_effective - OPCODE_LENGTH - HANDLE_LENGTH;
NRF_LOG_INFO("Ble NUS max data length set to 0x%X(%d)", m_ble_nus_max_data_len, m_ble_nus_max_data_len);
}
}
/**@brief Function for initializing the GATT library. */
void gatt_init(void)
{
ret_code_t err_code;
err_code = nrf_ble_gatt_init(&m_gatt, gatt_evt_handler);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_gatt_att_mtu_central_set(&m_gatt, NRF_SDH_BLE_GATT_MAX_MTU_SIZE);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling events from the BSP module.
*
* @param[in] event Event generated by button press.
*/
void bsp_event_handler(bsp_event_t event)
{
// ret_code_t err_code;
switch (event)
{
case BSP_EVENT_SLEEP:
nrf_pwr_mgmt_shutdown(NRF_PWR_MGMT_SHUTDOWN_GOTO_SYSOFF);
break;
case BSP_EVENT_DISCONNECT:
/*
err_code = sd_ble_gap_disconnect(m_ble_nus_c.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
*/
break;
default:
break;
}
}
/**@brief Handle events from leds timer.
*
* @note Timer handler does not support returning an error code.
* Errors from bsp_led_indication() are not propagated.
*
* @param[in] p_context parameter registered in timer start function.
*/
static void uart_timer_handler(void * p_context)
{
UNUSED_PARAMETER(p_context);
uart_rx_leng = uart_rx_index;
uart_rx_index = 0;
at_received = 1;
}
/**@brief Function for initializing the UART. */
static void uart_init(void)
{
ret_code_t err_code;
app_uart_comm_params_t const comm_params =
{
.rx_pin_no = RX_PIN_NUMBER,
.tx_pin_no = TX_PIN_NUMBER,
.rts_pin_no = RTS_PIN_NUMBER,
.cts_pin_no = CTS_PIN_NUMBER,
.flow_control = APP_UART_FLOW_CONTROL_DISABLED,
.use_parity = false,
.baud_rate = UART_BAUDRATE_BAUDRATE_Baud115200
};
APP_UART_FIFO_INIT(&comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_event_handle,
APP_IRQ_PRIORITY_LOWEST,
err_code);
APP_ERROR_CHECK(err_code);
err_code = app_timer_create(&m_uart_rx_tmr, APP_TIMER_MODE_SINGLE_SHOT, uart_timer_handler);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the Nordic UART Service (NUS) client. */
static void nus_c_init(void)
{
ret_code_t err_code;
ble_nus_c_init_t init;
init.evt_handler = ble_nus_c_evt_handler;
init.error_handler = nus_error_handler;
init.p_gatt_queue = &m_ble_gatt_queue;
for (uint32_t i = 0; i < NRF_SDH_BLE_CENTRAL_LINK_COUNT; i++)
{
err_code = ble_nus_c_init(&m_ble_nus_c[i], &init);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for initializing leds. */
static void leds_init(void)
{
ret_code_t err_code;
//bsp_event_t startup_event;
err_code = bsp_init(BSP_INIT_LEDS, bsp_event_handler);
APP_ERROR_CHECK(err_code);
//err_code = bsp_btn_ble_init(NULL, &startup_event);
//APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the timer. */
static void timer_init(void)
{
ret_code_t err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the nrf log module. */
static void log_init(void)
{
ret_code_t err_code = NRF_LOG_INIT(NULL);
APP_ERROR_CHECK(err_code);
NRF_LOG_DEFAULT_BACKENDS_INIT();
}
/**@brief Function for initializing power management.
*/
static void power_management_init(void)
{
ret_code_t err_code;
err_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(err_code);
}
/** @brief Function for initializing the database discovery module. */
static void db_discovery_init(void)
{
ble_db_discovery_init_t db_init;
memset(&db_init, 0, sizeof(ble_db_discovery_init_t));
db_init.evt_handler = db_disc_handler;
db_init.p_gatt_queue = &m_ble_gatt_queue;
ret_code_t err_code = ble_db_discovery_init(&db_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the idle state (main loop).
*
* @details Handles any pending log operations, then sleeps until the next event occurs.
*/
static void idle_state_handle(void)
{
if (NRF_LOG_PROCESS() == false)
{
//nrf_pwr_mgmt_run();
}
}
static at_code_typ at_get_code(void *param, uint16_t leng)
{
at_code_typ code = AT_NULL;
uint16_t ok_count;
uint16_t cmp_leng;
uint8_t *p_at_str;
uint8_t *p_param;
if (at_received)
{
at_member_str *p_at_member = (at_member_str *)at_member_array;
while (p_at_member->string != NULL)
{
ok_count = 0;
cmp_leng = 0;
p_at_str = (uint8_t *)p_at_member->string;
p_param = (uint8_t *)param;
while ((*p_at_str != '\0') && (cmp_leng < leng))
{
cmp_leng++;
if (*p_at_str++ == *p_param++)
{
ok_count++;
}
else
{
break;
}
}
if (ok_count == strlen((const char *)p_at_member->string))
{
code = p_at_member->code;
NRF_LOG_INFO("result=%s, cmp_len=%d, ok_count=%d, leng=%d, at_code=%d", p_at_member->string, cmp_leng, ok_count, leng, code);
break;
}
p_at_member++;
}
at_received = 0;
}
return code;
}
static void uart_puts(uint8_t *p_data, uint16_t data_len)
{
ret_code_t ret_val;
for (uint32_t i = 0; i < data_len; i++)
{
do
{
ret_val = app_uart_put(p_data[i]);
if ((ret_val != NRF_SUCCESS) && (ret_val != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("app_uart_put failed for index 0x%04x.", i);
APP_ERROR_CHECK(ret_val);
}
} while (ret_val == NRF_ERROR_BUSY);
}
}
static uint32_t find_adv_name(const ble_gap_evt_adv_report_t *p_adv_report, uint8_t *p_name)
{
uint8_t i;
uint32_t index = 0;
uint8_t * p_data;
p_data = p_adv_report->data.p_data;
while (index < p_adv_report->data.len)
{
uint8_t field_length = p_data[index];
uint8_t field_type = p_data[index + 1];
if ((field_type == BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME) || (field_type == BLE_GAP_AD_TYPE_SHORT_LOCAL_NAME))
{
for(i=0;i<field_length-1;i++)
{
*p_name++ = p_data[index+2+i];
if (i >= SCAN_NAME_BUFFER_SIZE - 1)
break;
}
return NRF_SUCCESS;
}
index += field_length + 1;
}
return NRF_ERROR_NOT_FOUND;
}
int main(void)
{
// Initialize.
log_init();
timer_init();
uart_init();
leds_init();
db_discovery_init();
power_management_init();
ble_stack_init();
gatt_init();
nus_c_init();
scan_init(false);
// Start execution.
printf("BLE UART central example started. zsl:%s\r\n", __TIME__);
NRF_LOG_INFO("BLE UART central example started. zsl:%s", __TIME__);
//scan_start();
// Enter main loop.
for (;;)
{
idle_state_handle();
if (at_process == AT_NULL)
{
at_process = at_get_code(uart_rx_buf, uart_rx_leng);
switch(at_process)
{
case AT_COMI_CODE:
AT_COMI_Handler(uart_rx_buf, uart_rx_leng);
break;
case AT_COMA_CODE:
AT_COMA_Handler(uart_rx_buf, uart_rx_leng);
break;
case AT_COLA_CODE:
AT_COLA_Handler(uart_rx_buf, uart_rx_leng);
break;
case AT_COSU_CODE:
AT_COSU_Handler(uart_rx_buf, uart_rx_leng);
break;
case AT_SCNT_CODE:
AT_SCNT_Handler(uart_rx_buf, uart_rx_leng);
break;
case AT_SCAN_CODE:
AT_SCAN_Handler(uart_rx_buf, uart_rx_leng);
break;
case AT_CONN_CODE:
AT_CONN_Handler(uart_rx_buf, uart_rx_leng);
break;
case AT_CONC_CODE:
AT_CONC_Handler(uart_rx_buf, uart_rx_leng);
break;
case AT_DISC_CODE:
AT_DISC_Handler(uart_rx_buf, uart_rx_leng);
break;
case AT_DATA_CODE:
AT_DATA_Handler(uart_rx_buf, uart_rx_leng);
break;
case AT_VERS_CODE:
AT_VERS_Handler(uart_rx_buf, uart_rx_leng);
break;
case AT_TEST_CODE:
AT_TEST_Handler(uart_rx_buf, uart_rx_leng);
break;
default:break;
}
}
}
}
/******************************
AT+SCNT[P]
P: [1~ 9] [?]
*****************************/
static void AT_SCNT_Handler(uint8_t *p_data, uint16_t data_len)
{
uint8_t param = *(p_data + sizeof(AT_SCNT) - 1);
if (data_len <= (sizeof(AT_SCNT) - 1))
{
at_process = AT_NULL;
return;
}
if (param == '?')
{
printf("OK+Get:%d\r\n", m_scan_param.timeout/100);
}
else if ((param >= '1') && (param <= '9'))
{
m_scan_param.timeout = (param - '0')*100;
nrf_ble_scan_stop();
scan_init(false);
printf("OK+Set:%d\r\n", m_scan_param.timeout/100);
}
at_process = AT_NULL;
}
static void AT_SCAN_Handler(uint8_t *p_data, uint16_t data_len)
{
if ((GET_CHANNEL_ACTIVE(0)) && (GET_CHANNEL_ACTIVE(1)))
{
at_process = AT_NULL;
return;
}
printf("OK+SCANS\r\n");
if ((GET_CHANNEL_ACTIVE(0)) || (GET_CHANNEL_ACTIVE(1)))
{
if (GET_CHANNEL_ACTIVE(0))
{
bsp_indication_set(BSP_INDICATE_USER_SCANNER_START_ONLY_1);
}
else
{
bsp_indication_set(BSP_INDICATE_USER_SCANNER_START_ONLY_0);
}
}
else
{
bsp_indication_set(BSP_INDICATE_USER_SCANNER_START);
}
scan_init(false);
scan_start();
}
static void AT_COMI_Handler(uint8_t *p_data, uint16_t data_len)
{
int8_t interval = 0;
uint8_t param = *(p_data + sizeof(AT_COMI) - 1);
if (data_len <= (sizeof(AT_SCNT) - 1))
{
at_process = AT_NULL;
return;
}
if (param == '?')
{
switch (m_conn_param.min_conn_interval)
{
case (uint16_t)MSEC_TO_UNITS(7.5, UNIT_1_25_MS):interval = 0;break;
case (uint16_t)MSEC_TO_UNITS(10, UNIT_1_25_MS):interval = 1;break;
case (uint16_t)MSEC_TO_UNITS(15, UNIT_1_25_MS):interval = 2;break;
case (uint16_t)MSEC_TO_UNITS(20, UNIT_1_25_MS):interval = 3;break;
case (uint16_t)MSEC_TO_UNITS(25, UNIT_1_25_MS):interval = 4;break;
case (uint16_t)MSEC_TO_UNITS(30, UNIT_1_25_MS):interval = 5;break;
case (uint16_t)MSEC_TO_UNITS(35, UNIT_1_25_MS):interval = 6;break;
case (uint16_t)MSEC_TO_UNITS(40, UNIT_1_25_MS):interval = 7;break;
case (uint16_t)MSEC_TO_UNITS(45, UNIT_1_25_MS):interval = 8;break;
case (uint16_t)MSEC_TO_UNITS(60, UNIT_1_25_MS):interval = 9;break;
default:interval = -1;break;
}
printf("OK+Get:%d\r\n", interval);
}
else if ((param >= '0') && (param <= '9'))
{
switch (param)
{
case '0':m_conn_param.min_conn_interval = (uint16_t)MSEC_TO_UNITS(7.5, UNIT_1_25_MS);break;
case '1':m_conn_param.min_conn_interval = (uint16_t)MSEC_TO_UNITS(10, UNIT_1_25_MS);break;
case '2':m_conn_param.min_conn_interval = (uint16_t)MSEC_TO_UNITS(15, UNIT_1_25_MS);break;
case '3':m_conn_param.min_conn_interval = (uint16_t)MSEC_TO_UNITS(20, UNIT_1_25_MS);break;
case '4':m_conn_param.min_conn_interval = (uint16_t)MSEC_TO_UNITS(25, UNIT_1_25_MS);break;
case '5':m_conn_param.min_conn_interval = (uint16_t)MSEC_TO_UNITS(30, UNIT_1_25_MS);break;
case '6':m_conn_param.min_conn_interval = (uint16_t)MSEC_TO_UNITS(35, UNIT_1_25_MS);break;
case '7':m_conn_param.min_conn_interval = (uint16_t)MSEC_TO_UNITS(40, UNIT_1_25_MS);break;
case '8':m_conn_param.min_conn_interval = (uint16_t)MSEC_TO_UNITS(45, UNIT_1_25_MS);break;
case '9':m_conn_param.min_conn_interval = (uint16_t)MSEC_TO_UNITS(60, UNIT_1_25_MS);break;
default:
m_conn_param.min_conn_interval = (uint16_t)MSEC_TO_UNITS(NRF_BLE_SCAN_MIN_CONNECTION_INTERVAL, UNIT_1_25_MS);
break;
}
nrf_ble_scan_stop();
scan_init(false);
printf("OK+Set:%d\r\n", param-'0');
}
at_process = AT_NULL;
}
static void AT_COMA_Handler(uint8_t *p_data, uint16_t data_len)
{
int8_t interval = 0;
uint8_t param = *(p_data + sizeof(AT_COMA) - 1);
if (data_len <= (sizeof(AT_SCNT) - 1))
{
at_process = AT_NULL;
return;
}
if (param == '?')
{
switch (m_conn_param.max_conn_interval)
{
case (uint16_t)MSEC_TO_UNITS(7.5, UNIT_1_25_MS):interval = 0;break;
case (uint16_t)MSEC_TO_UNITS(10, UNIT_1_25_MS):interval = 1;break;
case (uint16_t)MSEC_TO_UNITS(15, UNIT_1_25_MS):interval = 2;break;
case (uint16_t)MSEC_TO_UNITS(20, UNIT_1_25_MS):interval = 3;break;
case (uint16_t)MSEC_TO_UNITS(25, UNIT_1_25_MS):interval = 4;break;
case (uint16_t)MSEC_TO_UNITS(30, UNIT_1_25_MS):interval = 5;break;
case (uint16_t)MSEC_TO_UNITS(35, UNIT_1_25_MS):interval = 6;break;
case (uint16_t)MSEC_TO_UNITS(40, UNIT_1_25_MS):interval = 7;break;
case (uint16_t)MSEC_TO_UNITS(45, UNIT_1_25_MS):interval = 8;break;
case (uint16_t)MSEC_TO_UNITS(60, UNIT_1_25_MS):interval = 9;break;
default:interval = -1;break;
}
printf("OK+Get:%d\r\n", interval);
}
else if ((param >= '0') && (param <= '9'))
{
switch (param)
{
case '0':m_conn_param.max_conn_interval = (uint16_t)MSEC_TO_UNITS(7.5, UNIT_1_25_MS);break;
case '1':m_conn_param.max_conn_interval = (uint16_t)MSEC_TO_UNITS(10, UNIT_1_25_MS);break;
case '2':m_conn_param.max_conn_interval = (uint16_t)MSEC_TO_UNITS(15, UNIT_1_25_MS);break;
case '3':m_conn_param.max_conn_interval = (uint16_t)MSEC_TO_UNITS(20, UNIT_1_25_MS);break;
case '4':m_conn_param.max_conn_interval = (uint16_t)MSEC_TO_UNITS(25, UNIT_1_25_MS);break;
case '5':m_conn_param.max_conn_interval = (uint16_t)MSEC_TO_UNITS(30, UNIT_1_25_MS);break;
case '6':m_conn_param.max_conn_interval = (uint16_t)MSEC_TO_UNITS(35, UNIT_1_25_MS);break;
case '7':m_conn_param.max_conn_interval = (uint16_t)MSEC_TO_UNITS(40, UNIT_1_25_MS);break;
case '8':m_conn_param.max_conn_interval = (uint16_t)MSEC_TO_UNITS(45, UNIT_1_25_MS);break;
case '9':m_conn_param.max_conn_interval = (uint16_t)MSEC_TO_UNITS(60, UNIT_1_25_MS);break;
default:
m_conn_param.max_conn_interval = (uint16_t)MSEC_TO_UNITS(NRF_BLE_SCAN_MAX_CONNECTION_INTERVAL, UNIT_1_25_MS);
break;
}
nrf_ble_scan_stop();
scan_init(false);
printf("OK+Set:%d\r\n", param-'0');
}
at_process = AT_NULL;
}
static void AT_COLA_Handler(uint8_t *p_data, uint16_t data_len)
{
if (data_len <= (sizeof(AT_SCNT) - 1))
{
at_process = AT_NULL;
return;
}
if (*(p_data + sizeof(AT_COLA) - 1) == '?')
{
printf("OK+Get:%d\r\n", m_conn_param.slave_latency);
}
else
{
uint32_t latency;
int result;
uint8_t buffer[4] = {0,0,0,0};
memcpy(buffer, (p_data + sizeof(AT_COLA) - 1), data_len - sizeof(AT_COLA) + 1);
result = sscanf((const char *)buffer, "%d", &latency);
if ((latency <= BLE_GAP_CP_SLAVE_LATENCY_MAX) && (result == 1))
{
m_conn_param.slave_latency = latency;
nrf_ble_scan_stop();
scan_init(false);
printf("OK+Set:%d\r\n", m_conn_param.slave_latency);
}
}
at_process = AT_NULL;
}
static void AT_COSU_Handler(uint8_t *p_data, uint16_t data_len)
{
int8_t timeout;
uint8_t param = *(p_data + sizeof(AT_COSU) - 1);
if (data_len <= (sizeof(AT_SCNT) - 1))
{
at_process = AT_NULL;
return;
}
if (param == '?')
{
switch (m_conn_param.conn_sup_timeout)
{
case (uint16_t)MSEC_TO_UNITS(100, UNIT_10_MS):timeout = 0;break;
case (uint16_t)MSEC_TO_UNITS(1000, UNIT_10_MS):timeout = 1;break;
case (uint16_t)MSEC_TO_UNITS(2000, UNIT_10_MS):timeout = 2;break;
case (uint16_t)MSEC_TO_UNITS(3000, UNIT_10_MS):timeout = 3;break;
case (uint16_t)MSEC_TO_UNITS(4000, UNIT_10_MS):timeout = 4;break;
case (uint16_t)MSEC_TO_UNITS(5000, UNIT_10_MS):timeout = 5;break;
case (uint16_t)MSEC_TO_UNITS(6000, UNIT_10_MS):timeout = 6;break;
default:timeout = -1;break;
}
printf("OK+Get:%d\r\n", timeout);
}
else if ((param >= '0') && (param <= '6'))
{
if (param == '0')
{
m_conn_param.conn_sup_timeout = (uint16_t)MSEC_TO_UNITS(100, UNIT_10_MS);
}
else if((param >= '1') && (param <= '6'))
{
m_conn_param.conn_sup_timeout = (uint16_t)MSEC_TO_UNITS((param-'0')*1000, UNIT_10_MS);
}
nrf_ble_scan_stop();
scan_init(false);
printf("OK+Set:%d\r\n", param - '0');
}
at_process = AT_NULL;
}
static void AT_CONN_Handler(uint8_t *p_data, uint16_t data_len)
{
uint32_t channel;
uint32_t address[6];
int result;
if (data_len < (sizeof(AT_CONN"0:010203040506") - 1))
{
goto flag_error;
}
//extract
result = sscanf((const char *)p_data, "AT+CONN%d:%02X%02X%02X%02X%02X%02X",
&channel,
&address[0],
&address[1],
&address[2],
&address[3],
&address[4],
&address[5]);
if (result != 7)
{
goto flag_error;
}
if (channel == 0)
{
curr_conn_param.channel = 0;
}
else if (channel == 1)
{
curr_conn_param.channel = 1;
}
else
{
goto flag_error;
}
curr_conn_param.filter_address[0] = address[0];
curr_conn_param.filter_address[1] = address[1];
curr_conn_param.filter_address[2] = address[2];
curr_conn_param.filter_address[3] = address[3];
curr_conn_param.filter_address[4] = address[4];
curr_conn_param.filter_address[5] = address[5];
if (m_ble_nus_c[curr_conn_param.channel].conn_handle != BLE_CONN_HANDLE_INVALID)
{
goto flag_error;
}
if (curr_conn_param.channel)
{
bsp_indication_set(BSP_INDICATE_USER_SCANNER_START_ONLY_1);
}
else
{
bsp_indication_set(BSP_INDICATE_USER_SCANNER_START_ONLY_0);
}
// connecting target
printf("OK+CONN%dA\r\n", curr_conn_param.channel); //report connecting
scan_init(true);
scan_start();
return;
flag_error:
at_process = AT_NULL;
}
static void AT_CONC_Handler(uint8_t *p_data, uint16_t data_len)
{
uint8_t channel;
if (data_len < (sizeof(AT_CONC"0") - 1))
{
goto flag_error;
}
if (*(p_data + 7) == '0')
{
channel = 0;
}
else if(*(p_data + 7) == '1')
{
channel = 1;
}
else
{
goto flag_error;
}
if (m_ble_nus_c[channel].conn_handle == BLE_CONN_HANDLE_INVALID)
{
printf("OK+CON0\r\n");
}
else
{
printf("OK+CON1:%02X%02X%02X%02X%02X%02X\r\n",
m_ble_nus_c[channel].addr.addr[0],
m_ble_nus_c[channel].addr.addr[1],
m_ble_nus_c[channel].addr.addr[2],
m_ble_nus_c[channel].addr.addr[3],
m_ble_nus_c[channel].addr.addr[4],
m_ble_nus_c[channel].addr.addr[5]);
}
flag_error:
at_process = AT_NULL;
}
static void AT_DISC_Handler(uint8_t *p_data, uint16_t data_len)
{
uint8_t channel;
ret_code_t err_code;
if (data_len < (sizeof(AT_DISC"0") - 1))
{
goto flag_error;
}
if (*(p_data + 7) == '0')
{
channel = 0;
}
else if(*(p_data + 7) == '1')
{
channel = 1;
}
else
{
goto flag_error;
}
if (m_ble_nus_c[channel].conn_handle == BLE_CONN_HANDLE_INVALID)
{
goto flag_error;
}
err_code = sd_ble_gap_disconnect(m_ble_nus_c[channel].conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
goto flag_error;
}
printf("OK+DISC%d\r\n", channel);
flag_error:
at_process = AT_NULL;
}
static void AT_DATA_Handler(uint8_t *p_data, uint16_t data_len)
{
uint32_t channel;
uint32_t length;
int result;
uint8_t *p_send_data;
uint8_t counter = 0;
uint32_t ret_val;
if (data_len < (sizeof(AT_DATA"0:0:") - 1))
{
goto flag_error;
}
result = sscanf((const char *)p_data, "AT+DATA%d:%d:", &channel, &length);
NRF_LOG_INFO("sscanf result:%d, channel:%d, length:%d\r\n", result, channel, length);
p_send_data = p_data + sizeof("AT+DATA0:") - 1;
while ((*p_send_data++ != ':') && (++counter <= length));
do
{
ret_val = ble_nus_c_string_send(&m_ble_nus_c[channel], p_send_data, length);
if ( (ret_val != NRF_ERROR_INVALID_STATE) && (ret_val != NRF_ERROR_RESOURCES) )
{
APP_ERROR_CHECK(ret_val);
}
} while (ret_val == NRF_ERROR_RESOURCES);
flag_error:
at_process = AT_NULL;
}
static void AT_VERS_Handler(uint8_t *p_data, uint16_t data_len)
{
printf("OK+Get:%s\r\n", VERSION_STRING_APP);
at_process = AT_NULL;
}
static void AT_TEST_Handler(uint8_t *p_data, uint16_t data_len)
{
uart_puts("OK\r\n", sizeof("OK\r\n")-1);
at_process = AT_NULL;
}
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/**
* Copyright (c) 2012 - 2021, 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
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
/**
* Copyright (c) 2012 - 2021, 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_NUS_C)
#include <stdlib.h>
#include "ble.h"
#include "ble_nus_c.h"
#include "ble_gattc.h"
#include "ble_srv_common.h"
#include "app_error.h"
#define NRF_LOG_MODULE_NAME ble_nus_c
#include "nrf_log.h"
NRF_LOG_MODULE_REGISTER();
/**@brief Function for intercepting the errors of GATTC and the 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_nus_c_t * p_ble_nus_c = (ble_nus_c_t *)p_ctx;
NRF_LOG_DEBUG("A GATT Client error has occurred on conn_handle: 0X%X", conn_handle);
if (p_ble_nus_c->error_handler != NULL)
{
p_ble_nus_c->error_handler(nrf_error);
}
}
void ble_nus_c_on_db_disc_evt(ble_nus_c_t * p_ble_nus_c, ble_db_discovery_evt_t * p_evt)
{
ble_nus_c_evt_t nus_c_evt;
memset(&nus_c_evt,0,sizeof(ble_nus_c_evt_t));
ble_gatt_db_char_t * p_chars = p_evt->params.discovered_db.charateristics;
// Check if the NUS was discovered.
if ( (p_evt->evt_type == BLE_DB_DISCOVERY_COMPLETE)
&& (p_evt->params.discovered_db.srv_uuid.uuid == BLE_UUID_NUS_SERVICE)
&& (p_evt->params.discovered_db.srv_uuid.type == p_ble_nus_c->uuid_type))
{
for (uint32_t i = 0; i < p_evt->params.discovered_db.char_count; i++)
{
switch (p_chars[i].characteristic.uuid.uuid)
{
case BLE_UUID_NUS_RX_CHARACTERISTIC:
nus_c_evt.handles.nus_rx_handle = p_chars[i].characteristic.handle_value;
p_ble_nus_c->write_cmd = p_chars[i].characteristic.char_props.write_wo_resp;
break;
case BLE_UUID_NUS_TX_CHARACTERISTIC:
nus_c_evt.handles.nus_tx_handle = p_chars[i].characteristic.handle_value;
nus_c_evt.handles.nus_tx_cccd_handle = p_chars[i].cccd_handle;
break;
default:
break;
}
}
if (p_ble_nus_c->evt_handler != NULL)
{
nus_c_evt.conn_handle = p_evt->conn_handle;
nus_c_evt.evt_type = BLE_NUS_C_EVT_DISCOVERY_COMPLETE;
p_ble_nus_c->evt_handler(p_ble_nus_c, &nus_c_evt);
}
}
}
/**@brief Function for handling Handle Value Notification received from the SoftDevice.
*
* @details This function uses the Handle Value Notification received from the SoftDevice
* and checks if it is a notification of the NUS TX characteristic from the peer.
* If it is, this function decodes the data and sends it to the application.
*
* @param[in] p_ble_nus_c Pointer to the NUS Client structure.
* @param[in] p_ble_evt Pointer to the BLE event received.
*/
static void on_hvx(ble_nus_c_t * p_ble_nus_c, ble_evt_t const * p_ble_evt)
{
// HVX can only occur from client sending.
if ( (p_ble_nus_c->handles.nus_tx_handle != BLE_GATT_HANDLE_INVALID)
&& (p_ble_evt->evt.gattc_evt.params.hvx.handle == p_ble_nus_c->handles.nus_tx_handle)
&& (p_ble_nus_c->evt_handler != NULL))
{
ble_nus_c_evt_t ble_nus_c_evt;
ble_nus_c_evt.evt_type = BLE_NUS_C_EVT_NUS_TX_EVT;
ble_nus_c_evt.p_data = (uint8_t *)p_ble_evt->evt.gattc_evt.params.hvx.data;
ble_nus_c_evt.data_len = p_ble_evt->evt.gattc_evt.params.hvx.len;
p_ble_nus_c->evt_handler(p_ble_nus_c, &ble_nus_c_evt);
NRF_LOG_DEBUG("Client sending data.");
}
}
uint32_t ble_nus_c_init(ble_nus_c_t * p_ble_nus_c, ble_nus_c_init_t * p_ble_nus_c_init)
{
uint32_t err_code;
ble_uuid_t uart_uuid;
ble_uuid128_t nus_base_uuid = NUS_BASE_UUID;
VERIFY_PARAM_NOT_NULL(p_ble_nus_c);
VERIFY_PARAM_NOT_NULL(p_ble_nus_c_init);
VERIFY_PARAM_NOT_NULL(p_ble_nus_c_init->p_gatt_queue);
err_code = sd_ble_uuid_vs_add(&nus_base_uuid, &p_ble_nus_c->uuid_type);
VERIFY_SUCCESS(err_code);
uart_uuid.type = p_ble_nus_c->uuid_type;
uart_uuid.uuid = BLE_UUID_NUS_SERVICE;
p_ble_nus_c->conn_handle = BLE_CONN_HANDLE_INVALID;
p_ble_nus_c->evt_handler = p_ble_nus_c_init->evt_handler;
p_ble_nus_c->error_handler = p_ble_nus_c_init->error_handler;
p_ble_nus_c->handles.nus_tx_handle = BLE_GATT_HANDLE_INVALID;
p_ble_nus_c->handles.nus_rx_handle = BLE_GATT_HANDLE_INVALID;
p_ble_nus_c->p_gatt_queue = p_ble_nus_c_init->p_gatt_queue;
return ble_db_discovery_evt_register(&uart_uuid);
}
void ble_nus_c_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context)
{
ble_nus_c_t * p_ble_nus_c = (ble_nus_c_t *)p_context;
if ((p_ble_nus_c == NULL) || (p_ble_evt == NULL))
{
return;
}
if ( (p_ble_nus_c->conn_handle == BLE_CONN_HANDLE_INVALID)
||(p_ble_nus_c->conn_handle != p_ble_evt->evt.gap_evt.conn_handle)
)
{
return;
}
switch (p_ble_evt->header.evt_id)
{
case BLE_GATTC_EVT_HVX:
on_hvx(p_ble_nus_c, p_ble_evt);
break;
case BLE_GAP_EVT_DISCONNECTED:
if (p_ble_evt->evt.gap_evt.conn_handle == p_ble_nus_c->conn_handle
&& p_ble_nus_c->evt_handler != NULL)
{
ble_nus_c_evt_t nus_c_evt;
nus_c_evt.evt_type = BLE_NUS_C_EVT_DISCONNECTED;
p_ble_nus_c->conn_handle = BLE_CONN_HANDLE_INVALID;
p_ble_nus_c->evt_handler(p_ble_nus_c, &nus_c_evt);
}
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for creating a message for writing to the CCCD. */
static uint32_t cccd_configure(ble_nus_c_t * p_ble_nus_c, bool notification_enable)
{
nrf_ble_gq_req_t cccd_req;
uint8_t cccd[BLE_CCCD_VALUE_LEN];
uint16_t cccd_val = notification_enable ? BLE_GATT_HVX_NOTIFICATION : 0;
memset(&cccd_req, 0, sizeof(nrf_ble_gq_req_t));
cccd[0] = LSB_16(cccd_val);
cccd[1] = MSB_16(cccd_val);
cccd_req.type = NRF_BLE_GQ_REQ_GATTC_WRITE;
cccd_req.error_handler.cb = gatt_error_handler;
cccd_req.error_handler.p_ctx = p_ble_nus_c;
cccd_req.params.gattc_write.handle = p_ble_nus_c->handles.nus_tx_cccd_handle;
cccd_req.params.gattc_write.len = BLE_CCCD_VALUE_LEN;
cccd_req.params.gattc_write.offset = 0;
cccd_req.params.gattc_write.p_value = cccd;
cccd_req.params.gattc_write.write_op = BLE_GATT_OP_WRITE_REQ;
cccd_req.params.gattc_write.flags = BLE_GATT_EXEC_WRITE_FLAG_PREPARED_WRITE;
return nrf_ble_gq_item_add(p_ble_nus_c->p_gatt_queue, &cccd_req, p_ble_nus_c->conn_handle);
}
uint32_t ble_nus_c_tx_notif_enable(ble_nus_c_t * p_ble_nus_c)
{
VERIFY_PARAM_NOT_NULL(p_ble_nus_c);
if ( (p_ble_nus_c->conn_handle == BLE_CONN_HANDLE_INVALID)
||(p_ble_nus_c->handles.nus_tx_cccd_handle == BLE_GATT_HANDLE_INVALID)
)
{
return NRF_ERROR_INVALID_STATE;
}
return cccd_configure(p_ble_nus_c, true);
}
uint32_t ble_nus_c_string_send(ble_nus_c_t * p_ble_nus_c, uint8_t * p_string, uint16_t length)
{
VERIFY_PARAM_NOT_NULL(p_ble_nus_c);
nrf_ble_gq_req_t write_req;
memset(&write_req, 0, sizeof(nrf_ble_gq_req_t));
if (length > BLE_NUS_MAX_DATA_LEN)
{
NRF_LOG_WARNING("Content too long.");
return NRF_ERROR_INVALID_PARAM;
}
if (p_ble_nus_c->conn_handle == BLE_CONN_HANDLE_INVALID)
{
NRF_LOG_WARNING("Connection handle invalid.");
return NRF_ERROR_INVALID_STATE;
}
write_req.type = NRF_BLE_GQ_REQ_GATTC_WRITE;
write_req.error_handler.cb = gatt_error_handler;
write_req.error_handler.p_ctx = p_ble_nus_c;
write_req.params.gattc_write.handle = p_ble_nus_c->handles.nus_rx_handle;
write_req.params.gattc_write.len = length;
write_req.params.gattc_write.offset = 0;
write_req.params.gattc_write.p_value = p_string;
write_req.params.gattc_write.write_op = (p_ble_nus_c->write_cmd)?(BLE_GATT_OP_WRITE_CMD):(BLE_GATT_OP_WRITE_REQ);
write_req.params.gattc_write.flags = BLE_GATT_EXEC_WRITE_FLAG_PREPARED_WRITE;
return nrf_ble_gq_item_add(p_ble_nus_c->p_gatt_queue, &write_req, p_ble_nus_c->conn_handle);
}
uint32_t ble_nus_c_handles_assign(ble_nus_c_t * p_ble_nus,
uint16_t conn_handle,
ble_nus_c_handles_t const * p_peer_handles)
{
VERIFY_PARAM_NOT_NULL(p_ble_nus);
p_ble_nus->conn_handle = conn_handle;
if (p_peer_handles != NULL)
{
p_ble_nus->handles.nus_tx_cccd_handle = p_peer_handles->nus_tx_cccd_handle;
p_ble_nus->handles.nus_tx_handle = p_peer_handles->nus_tx_handle;
p_ble_nus->handles.nus_rx_handle = p_peer_handles->nus_rx_handle;
}
return nrf_ble_gq_conn_handle_register(p_ble_nus->p_gatt_queue, conn_handle);
}
#endif // NRF_MODULE_ENABLED(BLE_NUS_C)