diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bsp/bsp_btn_ble.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bsp/bsp_btn_ble.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bsp/bsp_btn_ble.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bsp/bsp_btn_ble.c new file mode 100644 index 0000000..65d7a4c --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bsp/bsp_btn_ble.c @@ -0,0 +1,254 @@ +/** + * Copyright (c) 2014 - 2018, 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; +} |