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Delete ble_conn_params.c that is a duplicate of ble_conn_params.cpp

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Andres Amaya Garcia 7 years ago
parent 4c8760c90c
commit 61ecdef2c5
1 changed files with 0 additions and 343 deletions
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source/nordic_sdk/components/ble/common/ble_conn_params.c
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/*
* Copyright (c) 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 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 other
* contributors to this software may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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 "ble_conn_params.h"
#include <stdlib.h>
#include "nordic_common.h"
#include "ble_hci.h"
#include "app_timer.h"
#include "ble_srv_common.h"
#include "app_util.h"
static ble_conn_params_init_t m_conn_params_config; /**< Configuration as specified by the application. */
static ble_gap_conn_params_t m_preferred_conn_params; /**< Connection parameters preferred by the application. */
static uint8_t m_update_count; /**< Number of Connection Parameter Update messages that has currently been sent. */
static uint16_t m_conn_handle; /**< Current connection handle. */
static ble_gap_conn_params_t m_current_conn_params; /**< Connection parameters received in the most recent Connect event. */
APP_TIMER_DEF(m_conn_params_timer_id); /**< Connection parameters timer. */
static bool m_change_param = false;
static bool is_conn_params_ok(ble_gap_conn_params_t * p_conn_params)
{
// Check if interval is within the acceptable range.
// NOTE: Using max_conn_interval in the received event data because this contains
// the client's connection interval.
if (
(p_conn_params->max_conn_interval >= m_preferred_conn_params.min_conn_interval)
&&
(p_conn_params->max_conn_interval <= m_preferred_conn_params.max_conn_interval)
)
{
return true;
}
else
{
return false;
}
}
static void update_timeout_handler(void * p_context)
{
UNUSED_PARAMETER(p_context);
if (m_conn_handle != BLE_CONN_HANDLE_INVALID)
{
// Check if we have reached the maximum number of attempts
m_update_count++;
if (m_update_count <= m_conn_params_config.max_conn_params_update_count)
{
uint32_t err_code;
// Parameters are not ok, send connection parameters update request.
err_code = sd_ble_gap_conn_param_update(m_conn_handle, &m_preferred_conn_params);
if ((err_code != NRF_SUCCESS) && (m_conn_params_config.error_handler != NULL))
{
m_conn_params_config.error_handler(err_code);
}
}
else
{
m_update_count = 0;
// Negotiation failed, disconnect automatically if this has been configured
if (m_conn_params_config.disconnect_on_fail)
{
uint32_t err_code;
err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
if ((err_code != NRF_SUCCESS) && (m_conn_params_config.error_handler != NULL))
{
m_conn_params_config.error_handler(err_code);
}
}
// Notify the application that the procedure has failed
if (m_conn_params_config.evt_handler != NULL)
{
ble_conn_params_evt_t evt;
evt.evt_type = BLE_CONN_PARAMS_EVT_FAILED;
m_conn_params_config.evt_handler(&evt);
}
}
}
}
uint32_t ble_conn_params_init(const ble_conn_params_init_t * p_init)
{
uint32_t err_code;
m_conn_params_config = *p_init;
m_change_param = false;
if (p_init->p_conn_params != NULL)
{
m_preferred_conn_params = *p_init->p_conn_params;
// Set the connection params in stack
err_code = sd_ble_gap_ppcp_set(&m_preferred_conn_params);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
}
else
{
// Fetch the connection params from stack
err_code = sd_ble_gap_ppcp_get(&m_preferred_conn_params);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
}
m_conn_handle = BLE_CONN_HANDLE_INVALID;
m_update_count = 0;
return app_timer_create(&m_conn_params_timer_id,
APP_TIMER_MODE_SINGLE_SHOT,
update_timeout_handler);
}
uint32_t ble_conn_params_stop(void)
{
return app_timer_stop(m_conn_params_timer_id);
}
static void conn_params_negotiation(void)
{
// Start negotiation if the received connection parameters are not acceptable
if (!is_conn_params_ok(&m_current_conn_params))
{
uint32_t err_code;
uint32_t timeout_ticks;
if (m_change_param)
{
// Notify the application that the procedure has failed
if (m_conn_params_config.evt_handler != NULL)
{
ble_conn_params_evt_t evt;
evt.evt_type = BLE_CONN_PARAMS_EVT_FAILED;
m_conn_params_config.evt_handler(&evt);
}
}
else
{
if (m_update_count == 0)
{
// First connection parameter update
timeout_ticks = m_conn_params_config.first_conn_params_update_delay;
}
else
{
timeout_ticks = m_conn_params_config.next_conn_params_update_delay;
}
err_code = app_timer_start(m_conn_params_timer_id, timeout_ticks, NULL);
if ((err_code != NRF_SUCCESS) && (m_conn_params_config.error_handler != NULL))
{
m_conn_params_config.error_handler(err_code);
}
}
}
else
{
// Notify the application that the procedure has succeded
if (m_conn_params_config.evt_handler != NULL)
{
ble_conn_params_evt_t evt;
evt.evt_type = BLE_CONN_PARAMS_EVT_SUCCEEDED;
m_conn_params_config.evt_handler(&evt);
}
}
m_change_param = false;
}
static void on_connect(ble_evt_t * p_ble_evt)
{
// Save connection parameters
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
m_current_conn_params = p_ble_evt->evt.gap_evt.params.connected.conn_params;
m_update_count = 0; // Connection parameter negotiation should re-start every connection
// Check if we shall handle negotiation on connect
if (m_conn_params_config.start_on_notify_cccd_handle == BLE_GATT_HANDLE_INVALID)
{
conn_params_negotiation();
}
}
static void on_disconnect(ble_evt_t * p_ble_evt)
{
uint32_t err_code;
m_conn_handle = BLE_CONN_HANDLE_INVALID;
// Stop timer if running
m_update_count = 0; // Connection parameters updates should happen during every connection
err_code = app_timer_stop(m_conn_params_timer_id);
if ((err_code != NRF_SUCCESS) && (m_conn_params_config.error_handler != NULL))
{
m_conn_params_config.error_handler(err_code);
}
}
static void on_write(ble_evt_t * p_ble_evt)
{
ble_gatts_evt_write_t * p_evt_write = &p_ble_evt->evt.gatts_evt.params.write;
// Check if this the correct CCCD
if (
(p_evt_write->handle == m_conn_params_config.start_on_notify_cccd_handle)
&&
(p_evt_write->len == 2)
)
{
// Check if this is a 'start notification'
if (ble_srv_is_notification_enabled(p_evt_write->data))
{
// Do connection parameter negotiation if necessary
conn_params_negotiation();
}
else
{
uint32_t err_code;
// Stop timer if running
err_code = app_timer_stop(m_conn_params_timer_id);
if ((err_code != NRF_SUCCESS) && (m_conn_params_config.error_handler != NULL))
{
m_conn_params_config.error_handler(err_code);
}
}
}
}
static void on_conn_params_update(ble_evt_t * p_ble_evt)
{
// Copy the parameters
m_current_conn_params = p_ble_evt->evt.gap_evt.params.conn_param_update.conn_params;
conn_params_negotiation();
}
void ble_conn_params_on_ble_evt(ble_evt_t * p_ble_evt)
{
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
on_connect(p_ble_evt);
break;
case BLE_GAP_EVT_DISCONNECTED:
on_disconnect(p_ble_evt);
break;
case BLE_GATTS_EVT_WRITE:
on_write(p_ble_evt);
break;
case BLE_GAP_EVT_CONN_PARAM_UPDATE:
on_conn_params_update(p_ble_evt);
break;
default:
// No implementation needed.
break;
}
}
uint32_t ble_conn_params_change_conn_params(ble_gap_conn_params_t * new_params)
{
uint32_t err_code;
m_preferred_conn_params = *new_params;
// Set the connection params in stack
err_code = sd_ble_gap_ppcp_set(&m_preferred_conn_params);
if (err_code == NRF_SUCCESS)
{
if (!is_conn_params_ok(&m_current_conn_params))
{
m_change_param = true;
err_code = sd_ble_gap_conn_param_update(m_conn_handle, &m_preferred_conn_params);
m_update_count = 1;
}
else
{
// Notify the application that the procedure has succeded
if (m_conn_params_config.evt_handler != NULL)
{
ble_conn_params_evt_t evt;
evt.evt_type = BLE_CONN_PARAMS_EVT_SUCCEEDED;
m_conn_params_config.evt_handler(&evt);
}
err_code = NRF_SUCCESS;
}
}
return err_code;
}
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