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remove ble_conn_params dependency

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hathach
2018-04-04 15:35:36 +07:00
parent 66fc8f0931
commit 3da08add42
5 changed files with 1 additions and 482 deletions
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323
nRF5_SDK_11.0.0_89a8197/components/ble/common/ble_conn_params.c
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@@ -1,323 +0,0 @@
/* Copyright (c) 2012 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.
*
*/
#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;
}

111
nRF5_SDK_11.0.0_89a8197/components/ble/common/ble_conn_params.h
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@@ -1,111 +0,0 @@
/* Copyright (c) 2012 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_lib_conn_params Connection Parameters Negotiation
* @{
* @ingroup ble_sdk_lib
* @brief Module for initiating and executing a connection parameters negotiation procedure.
*/
#ifndef BLE_CONN_PARAMS_H__
#define BLE_CONN_PARAMS_H__
#include <stdint.h>
#include "ble.h"
#include "ble_srv_common.h"
/**@brief Connection Parameters Module event type. */
typedef enum
{
BLE_CONN_PARAMS_EVT_FAILED , /**< Negotiation procedure failed. */
BLE_CONN_PARAMS_EVT_SUCCEEDED /**< Negotiation procedure succeeded. */
} ble_conn_params_evt_type_t;
/**@brief Connection Parameters Module event. */
typedef struct
{
ble_conn_params_evt_type_t evt_type; /**< Type of event. */
} ble_conn_params_evt_t;
/**@brief Connection Parameters Module event handler type. */
typedef void (*ble_conn_params_evt_handler_t) (ble_conn_params_evt_t * p_evt);
/**@brief Connection Parameters Module init structure. This contains all options and data needed for
* initialization of the connection parameters negotiation module. */
typedef struct
{
ble_gap_conn_params_t * p_conn_params; /**< Pointer to the connection parameters desired by the application. When calling ble_conn_params_init, if this parameter is set to NULL, the connection parameters will be fetched from host. */
uint32_t first_conn_params_update_delay; /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (in number of timer ticks). */
uint32_t next_conn_params_update_delay; /**< Time between each call to sd_ble_gap_conn_param_update after the first (in number of timer ticks). Recommended value 30 seconds as per BLUETOOTH SPECIFICATION Version 4.0. */
uint8_t max_conn_params_update_count; /**< Number of attempts before giving up the negotiation. */
uint16_t start_on_notify_cccd_handle; /**< If procedure is to be started when notification is started, set this to the handle of the corresponding CCCD. Set to BLE_GATT_HANDLE_INVALID if procedure is to be started on connect event. */
bool disconnect_on_fail; /**< Set to TRUE if a failed connection parameters update shall cause an automatic disconnection, set to FALSE otherwise. */
ble_conn_params_evt_handler_t evt_handler; /**< Event handler to be called for handling events in the Connection Parameters. */
ble_srv_error_handler_t error_handler; /**< Function to be called in case of an error. */
} ble_conn_params_init_t;
/**@brief Function for initializing the Connection Parameters module.
*
* @note If the negotiation procedure should be triggered when notification/indication of
* any characteristic is enabled by the peer, then this function must be called after
* having initialized the services.
*
* @param[in] p_init This contains information needed to initialize this module.
*
* @return NRF_SUCCESS on successful initialization, otherwise an error code.
*/
uint32_t ble_conn_params_init(const ble_conn_params_init_t * p_init);
/**@brief Function for stopping the Connection Parameters module.
*
* @details This function is intended to be used by the application to clean up the connection
* parameters update module. This will stop the connection parameters update timer if
* running, thereby preventing any impending connection parameters update procedure. This
* function must be called by the application when it needs to clean itself up (for
* example, before disabling the bluetooth SoftDevice) so that an unwanted timer expiry
* event can be avoided.
*
* @return NRF_SUCCESS on successful initialization, otherwise an error code.
*/
uint32_t ble_conn_params_stop(void);
/**@brief Function for changing the current connection parameters to a new set.
*
* @details Use this function to change the connection parameters to a new set of parameter
* (ie different from the ones given at init of the module).
* This function is usefull for scenario where most of the time the application
* needs a relatively big connection interval, and just sometimes, for a temporary
* period requires shorter connection interval, for example to transfer a higher
* amount of data.
* If the given parameters does not match the current connection's parameters
* this function initiates a new negotiation.
*
* @param[in] new_params This contains the new connections parameters to setup.
*
* @return NRF_SUCCESS on successful initialization, otherwise an error code.
*/
uint32_t ble_conn_params_change_conn_params(ble_gap_conn_params_t *new_params);
/**@brief Function for handling the Application's BLE Stack events.
*
* @details Handles all events from the BLE stack that are of interest to this module.
*
* @param[in] p_ble_evt The event received from the BLE stack.
*/
void ble_conn_params_on_ble_evt(ble_evt_t * p_ble_evt);
#endif // BLE_CONN_PARAMS_H__
/** @} */