diff options
Diffstat (limited to 'bsp/bsp_btn_ble.c')
| -rw-r--r-- | bsp/bsp_btn_ble.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/bsp/bsp_btn_ble.c b/bsp/bsp_btn_ble.c new file mode 100644 index 0000000..6eb01fe --- /dev/null +++ b/bsp/bsp_btn_ble.c @@ -0,0 +1,240 @@ +
+
+#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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