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Show/hide line numbers ble_radio_notification.c Source File

ble_radio_notification.c

00001 /*
00002  * Copyright (c) Nordic Semiconductor ASA
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without modification,
00006  * are permitted provided that the following conditions are met:
00007  *
00008  *   1. Redistributions of source code must retain the above copyright notice, this
00009  *   list of conditions and the following disclaimer.
00010  *
00011  *   2. Redistributions in binary form must reproduce the above copyright notice, this
00012  *   list of conditions and the following disclaimer in the documentation and/or
00013  *   other materials provided with the distribution.
00014  *
00015  *   3. Neither the name of Nordic Semiconductor ASA nor the names of other
00016  *   contributors to this software may be used to endorse or promote products
00017  *   derived from this software without specific prior written permission.
00018  *
00019  *
00020  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
00021  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00022  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00023  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
00024  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
00025  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00026  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
00027  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00028  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00029  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00030  *
00031  */
00032 
00033 #include "ble_radio_notification.h "
00034 #include <stdlib.h>
00035 
00036 
00037 static bool                                 m_radio_active = false;  /**< Current radio state. */
00038 static ble_radio_notification_evt_handler_t m_evt_handler  = NULL;   /**< Application event handler for handling Radio Notification events. */
00039 
00040 
00041 void SWI1_IRQHandler(void)
00042 {
00043     m_radio_active = !m_radio_active;
00044     if (m_evt_handler != NULL)
00045     {
00046         m_evt_handler(m_radio_active);
00047     }
00048 }
00049 
00050 
00051 uint32_t ble_radio_notification_init(nrf_app_irq_priority_t               irq_priority,
00052                                      nrf_radio_notification_distance_t    distance,
00053                                      ble_radio_notification_evt_handler_t evt_handler)
00054 {
00055     uint32_t err_code;
00056 
00057     m_evt_handler = evt_handler;
00058 
00059     // Initialize Radio Notification software interrupt
00060     err_code = sd_nvic_ClearPendingIRQ(SWI1_IRQn);
00061     if (err_code != NRF_SUCCESS)
00062     {
00063         return err_code;
00064     }
00065 
00066     err_code = sd_nvic_SetPriority(SWI1_IRQn, irq_priority);
00067     if (err_code != NRF_SUCCESS)
00068     {
00069         return err_code;
00070     }
00071 
00072     err_code = sd_nvic_EnableIRQ(SWI1_IRQn);
00073     if (err_code != NRF_SUCCESS)
00074     {
00075         return err_code;
00076     }
00077 
00078     // Configure the event
00079     return sd_radio_notification_cfg_set(NRF_RADIO_NOTIFICATION_TYPE_INT_ON_BOTH, distance);
00080 }