From 70af01e8de04f743f69c97048285c23e5234aa6f Mon Sep 17 00:00:00 2001 From: root Date: Mon, 7 Sep 2015 13:14:46 +0100 Subject: working_bracelet --- bsp/bsp_btn_ble.c | 240 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 240 insertions(+) create mode 100644 bsp/bsp_btn_ble.c (limited to 'bsp/bsp_btn_ble.c') 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 +#include +#include +#include +#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; +} -- cgit v1.2.3