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#include "bsp_btn_ble.h"
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#include <sdk/softdevice/s130/headers/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.
*/
#define RETURN_ON_ERROR(err_code) \
do \
{ \
if ((err_code) != NRF_SUCCESS) \
{ \
return err_code; \
} \
} \
while(0)
/**@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.
*
* @retval NRF_SUCCESS Extraction was successful.
* @return A propagated error code.
*/
static uint32_t startup_event_extract(bsp_event_t * p_startup_event)
{
uint32_t err_code;
bool wakeup_button_is_pressed, bond_erase_button_is_pressed;
// Read buttons
err_code = bsp_button_is_pressed(BTN_ID_WAKEUP, &wakeup_button_is_pressed);
RETURN_ON_ERROR(err_code);
err_code = bsp_button_is_pressed(BTN_ID_WAKEUP_BOND_DELETE, &bond_erase_button_is_pressed);
RETURN_ON_ERROR(err_code);
// React to button states
if (bond_erase_button_is_pressed)
{
*p_startup_event = BSP_EVENT_CLEAR_BONDING_DATA;
}
else if (wakeup_button_is_pressed)
{
*p_startup_event = BSP_EVENT_WAKEUP;
}
else
{
*p_startup_event = BSP_EVENT_NOTHING;
}
return NRF_SUCCESS;
}
uint32_t bsp_btn_ble_sleep_mode_prepare(void)
{
uint32_t err_code = bsp_wakeup_buttons_set((1 << BTN_ID_WAKEUP) | (1 << BTN_ID_WAKEUP_BOND_DELETE));
RETURN_ON_ERROR_NOT_NOT_SUPPORTED(err_code);
return NRF_SUCCESS;
}
void bsp_btn_ble_on_ble_evt(ble_evt_t * p_ble_evt)
{
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;
}
}
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)
{
err_code = startup_event_extract(p_startup_bsp_evt);
RETURN_ON_ERROR(err_code);
}
if (m_num_connections == 0)
{
err_code = advertising_buttons_configure();
}
return err_code;
}
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