127 lines
4.1 KiB
C
127 lines
4.1 KiB
C
/**
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* Copyright (c) 2018 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "sdk_common.h"
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#if NRF_MODULE_ENABLED(NFC_PLATFORM)
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#include "nfc_platform.h"
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#include "nrf_drv_clock.h"
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#define NRF_LOG_MODULE_NAME nfc_platform
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#if NFC_PLATFORM_LOG_ENABLED
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#define NRF_LOG_LEVEL NFC_PLATFORM_LOG_LEVEL
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#define NRF_LOG_INFO_COLOR NFC_PLATFORM_INFO_COLOR
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#define NRF_LOG_DEBUG_COLOR NFC_PLATFORM_DEBUG_COLOR
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#include "nrf_log.h"
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NRF_LOG_MODULE_REGISTER();
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#else // NFC_PLATFORM_LOG_ENABLED
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#define NRF_LOG_LEVEL 0
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#include "nrf_log.h"
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#endif // NFC_PLATFORM_LOG_ENABLED
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/* Static data */
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static nrf_drv_clock_handler_item_t m_clock_handler_item; /**< Clock event handler item structure. */
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/**@brief Function for handling events from the Clock module.
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*
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* @param[in] event Clock event.
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*
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*/
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static inline void clock_event_handler(nrf_drv_clock_evt_type_t event)
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{
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switch(event)
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{
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case NRF_DRV_CLOCK_EVT_HFCLK_STARTED:
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/* Activate NFCT only when HFXO is running */
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nrfx_nfct_state_force(NRFX_NFCT_STATE_ACTIVATED);
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break;
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default:
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/* No implementation required */
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break;
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}
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}
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nrfx_err_t nfc_platform_setup(void)
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{
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nrfx_err_t err_code;
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/* Initialize the Clock module for handling high precision clock requests */
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m_clock_handler_item.event_handler = clock_event_handler;
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m_clock_handler_item.p_next = NULL;
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err_code = nrf_drv_clock_init();
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if (err_code == NRF_ERROR_MODULE_ALREADY_INITIALIZED)
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{
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err_code = NRFX_SUCCESS;
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}
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else if (err_code != NRF_SUCCESS)
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{
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return NRFX_ERROR_INTERNAL;
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}
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NRF_LOG_DEBUG("Utils init");
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return err_code;
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}
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void nfc_platform_event_handler(nrfx_nfct_evt_t const * p_event)
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{
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switch (p_event->evt_id)
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{
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case NRFX_NFCT_EVT_FIELD_DETECTED:
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NRF_LOG_DEBUG("Field detected");
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nrf_drv_clock_hfclk_request(&m_clock_handler_item);
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break;
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case NRFX_NFCT_EVT_FIELD_LOST:
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NRF_LOG_DEBUG("Field lost");
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nrf_drv_clock_hfclk_release();
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break;
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default:
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/* No implementation required */
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break;
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}
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}
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#endif // NRF_MODULE_ENABLED(NFC_PLATFORM)
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