255 lines
9.9 KiB
C
255 lines
9.9 KiB
C
/**
|
|
* Copyright (c) 2014 - 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 "bsp_btn_ble.h"
|
|
#include "nrf_sdh_ble.h"
|
|
#include "bsp.h"
|
|
|
|
#define BTN_ID_WAKEUP 0 /**< ID of button used to wake up the application. */
|
|
#define BTN_ID_SLEEP 0 /**< ID of button used to put the application into sleep mode. */
|
|
#define BTN_ID_DISCONNECT 0 /**< ID of button used to gracefully terminate a connection on long press. */
|
|
#define BTN_ID_WAKEUP_BOND_DELETE 1 /**< ID of button used to wake up the application and delete all bonding information. */
|
|
#define BTN_ID_WHITELIST_OFF 1 /**< ID of button used to turn off usage of the whitelist. */
|
|
|
|
#define BTN_ACTION_SLEEP BSP_BUTTON_ACTION_RELEASE /**< Button action used to put the application into sleep mode. */
|
|
#define BTN_ACTION_DISCONNECT BSP_BUTTON_ACTION_LONG_PUSH /**< Button action used to gracefully terminate a connection on long press. */
|
|
#define BTN_ACTION_WHITELIST_OFF BSP_BUTTON_ACTION_LONG_PUSH /**< Button action used to turn off usage of the whitelist. */
|
|
|
|
/**@brief This macro will return from the current function if err_code
|
|
* is not NRF_SUCCESS or NRF_ERROR_INVALID_PARAM.
|
|
*/
|
|
#define RETURN_ON_ERROR_NOT_INVALID_PARAM(err_code) \
|
|
do \
|
|
{ \
|
|
if (((err_code) != NRF_SUCCESS) && ((err_code) != NRF_ERROR_INVALID_PARAM)) \
|
|
{ \
|
|
return err_code; \
|
|
} \
|
|
} \
|
|
while (0)
|
|
|
|
|
|
/**@brief This macro will return from the current function if err_code
|
|
* is not NRF_SUCCESS or NRF_ERROR_NOT_SUPPORTED.
|
|
*/
|
|
#define RETURN_ON_ERROR_NOT_NOT_SUPPORTED(err_code) \
|
|
do \
|
|
{ \
|
|
if (((err_code) != NRF_SUCCESS) && ((err_code) != NRF_ERROR_NOT_SUPPORTED)) \
|
|
{ \
|
|
return err_code; \
|
|
} \
|
|
} \
|
|
while (0)
|
|
|
|
|
|
/**@brief This macro will call the registered error handler if err_code
|
|
* is not NRF_SUCCESS and the error handler is not NULL.
|
|
*/
|
|
#define CALL_HANDLER_ON_ERROR(err_code) \
|
|
do \
|
|
{ \
|
|
if (((err_code) != NRF_SUCCESS) && (m_error_handler != NULL)) \
|
|
{ \
|
|
m_error_handler(err_code); \
|
|
} \
|
|
} \
|
|
while (0)
|
|
|
|
|
|
static bsp_btn_ble_error_handler_t m_error_handler = NULL; /**< Error handler registered by the user. */
|
|
static uint32_t m_num_connections = 0; /**< Number of connections the device is currently in. */
|
|
|
|
|
|
/**@brief Function for configuring the buttons for connection.
|
|
*
|
|
* @retval NRF_SUCCESS Configured successfully.
|
|
* @return A propagated error code.
|
|
*/
|
|
static uint32_t connection_buttons_configure()
|
|
{
|
|
uint32_t err_code;
|
|
|
|
err_code = bsp_event_to_button_action_assign(BTN_ID_SLEEP,
|
|
BTN_ACTION_SLEEP,
|
|
BSP_EVENT_DEFAULT);
|
|
RETURN_ON_ERROR_NOT_INVALID_PARAM(err_code);
|
|
|
|
err_code = bsp_event_to_button_action_assign(BTN_ID_WHITELIST_OFF,
|
|
BTN_ACTION_WHITELIST_OFF,
|
|
BSP_EVENT_WHITELIST_OFF);
|
|
RETURN_ON_ERROR_NOT_INVALID_PARAM(err_code);
|
|
|
|
|
|
err_code = bsp_event_to_button_action_assign(BTN_ID_DISCONNECT,
|
|
BTN_ACTION_DISCONNECT,
|
|
BSP_EVENT_DISCONNECT);
|
|
RETURN_ON_ERROR_NOT_INVALID_PARAM(err_code);
|
|
|
|
return NRF_SUCCESS;
|
|
}
|
|
|
|
|
|
/**@brief Function for configuring the buttons for advertisement.
|
|
*
|
|
* @retval NRF_SUCCESS Configured successfully.
|
|
* @return A propagated error code.
|
|
*/
|
|
static uint32_t advertising_buttons_configure()
|
|
{
|
|
uint32_t err_code;
|
|
|
|
err_code = bsp_event_to_button_action_assign(BTN_ID_DISCONNECT,
|
|
BTN_ACTION_DISCONNECT,
|
|
BSP_EVENT_DEFAULT);
|
|
RETURN_ON_ERROR_NOT_INVALID_PARAM(err_code);
|
|
|
|
err_code = bsp_event_to_button_action_assign(BTN_ID_WHITELIST_OFF,
|
|
BTN_ACTION_WHITELIST_OFF,
|
|
BSP_EVENT_WHITELIST_OFF);
|
|
RETURN_ON_ERROR_NOT_INVALID_PARAM(err_code);
|
|
|
|
err_code = bsp_event_to_button_action_assign(BTN_ID_SLEEP,
|
|
BTN_ACTION_SLEEP,
|
|
BSP_EVENT_SLEEP);
|
|
RETURN_ON_ERROR_NOT_INVALID_PARAM(err_code);
|
|
|
|
return NRF_SUCCESS;
|
|
}
|
|
|
|
|
|
/**@brief Function for extracting the BSP event valid at startup.
|
|
*
|
|
* @details When a button was used to wake up the device, the button press will not generate an
|
|
* interrupt. This function reads which button was pressed at startup, and returns the
|
|
* appropriate BSP event.
|
|
*
|
|
* @param[out] p_startup_event Where to put the extracted BSP event.
|
|
*/
|
|
static void startup_event_extract(bsp_event_t * p_startup_event)
|
|
{
|
|
// React to button states
|
|
if (bsp_button_is_pressed(BTN_ID_WAKEUP_BOND_DELETE))
|
|
{
|
|
*p_startup_event = BSP_EVENT_CLEAR_BONDING_DATA;
|
|
}
|
|
else if (bsp_button_is_pressed(BTN_ID_WAKEUP))
|
|
{
|
|
*p_startup_event = BSP_EVENT_WAKEUP;
|
|
}
|
|
else
|
|
{
|
|
*p_startup_event = BSP_EVENT_NOTHING;
|
|
}
|
|
}
|
|
|
|
|
|
uint32_t bsp_btn_ble_sleep_mode_prepare(void)
|
|
{
|
|
uint32_t err_code;
|
|
|
|
err_code = bsp_wakeup_button_enable(BTN_ID_WAKEUP);
|
|
RETURN_ON_ERROR_NOT_NOT_SUPPORTED(err_code);
|
|
|
|
err_code = bsp_wakeup_button_enable(BTN_ID_WAKEUP_BOND_DELETE);
|
|
RETURN_ON_ERROR_NOT_NOT_SUPPORTED(err_code);
|
|
|
|
return NRF_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Function for handling BLE events.
|
|
*
|
|
* @param[in] p_ble_evt Event received from the BLE stack.
|
|
* @param[in] p_context Context.
|
|
*/
|
|
static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
|
|
{
|
|
uint32_t err_code;
|
|
|
|
switch (p_ble_evt->header.evt_id)
|
|
{
|
|
case BLE_GAP_EVT_CONNECTED:
|
|
if (m_num_connections == 0)
|
|
{
|
|
err_code = connection_buttons_configure();
|
|
CALL_HANDLER_ON_ERROR(err_code);
|
|
}
|
|
|
|
m_num_connections++;
|
|
break;
|
|
|
|
case BLE_GAP_EVT_DISCONNECTED:
|
|
m_num_connections--;
|
|
|
|
if (m_num_connections == 0)
|
|
{
|
|
err_code = advertising_buttons_configure();
|
|
CALL_HANDLER_ON_ERROR(err_code);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
NRF_SDH_BLE_OBSERVER(m_ble_observer, BSP_BTN_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
|
|
|
|
|
|
uint32_t bsp_btn_ble_init(bsp_btn_ble_error_handler_t error_handler, bsp_event_t * p_startup_bsp_evt)
|
|
{
|
|
uint32_t err_code = NRF_SUCCESS;
|
|
|
|
m_error_handler = error_handler;
|
|
|
|
if (p_startup_bsp_evt != NULL)
|
|
{
|
|
startup_event_extract(p_startup_bsp_evt);
|
|
}
|
|
|
|
if (m_num_connections == 0)
|
|
{
|
|
err_code = advertising_buttons_configure();
|
|
}
|
|
|
|
return err_code;
|
|
}
|