400 lines
12 KiB
C
400 lines
12 KiB
C
/**
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* Copyright (c) 2016 - 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 "nrf_block_dev_sdc.h"
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/**@file
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*
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* @ingroup nrf_block_dev_sdc
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* @{
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*
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* @brief This module implements block device API. It should be used as a reference block device.
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*/
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static volatile sdc_result_t m_last_result;
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/**
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* @brief Active SDC block device handle. Only one instance.
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* */
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static nrf_block_dev_sdc_t const * m_active_sdc_dev;
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static ret_code_t block_dev_sdc_uninit(nrf_block_dev_t const * p_blk_dev);
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static void wait_func(void)
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{
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}
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static void sdc_wait()
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{
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while (app_sdc_busy_check())
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{
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wait_func();
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}
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}
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static void sdc_handler(sdc_evt_t const * p_event)
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{
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m_last_result = p_event->result;
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nrf_block_dev_sdc_t const * p_sdc_dev = m_active_sdc_dev;
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nrf_block_dev_sdc_work_t * p_work = p_sdc_dev->p_work;
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switch (p_event->type)
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{
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case SDC_EVT_INIT:
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{
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if (p_event->result != SDC_SUCCESS)
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{
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nrf_block_dev_t const * block_dev = &(p_sdc_dev->block_dev);
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ret_code_t err_code = block_dev_sdc_uninit(block_dev);
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APP_ERROR_CHECK(err_code);
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}
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p_work->geometry.blk_count = app_sdc_info_get()->num_blocks;
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p_work->geometry.blk_size = SDC_SECTOR_SIZE;
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if (m_active_sdc_dev->p_work->ev_handler)
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{
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const nrf_block_dev_event_t ev = {
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NRF_BLOCK_DEV_EVT_INIT,
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((p_event->result == SDC_SUCCESS) ? \
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NRF_BLOCK_DEV_RESULT_SUCCESS : NRF_BLOCK_DEV_RESULT_IO_ERROR),
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NULL,
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p_work->p_context
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};
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p_work->ev_handler(&p_sdc_dev->block_dev, &ev);
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}
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}
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break;
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case SDC_EVT_READ:
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if (m_active_sdc_dev->p_work->ev_handler)
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{
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const nrf_block_dev_event_t ev = {
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NRF_BLOCK_DEV_EVT_BLK_READ_DONE,
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((p_event->result == SDC_SUCCESS) ? \
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NRF_BLOCK_DEV_RESULT_SUCCESS : NRF_BLOCK_DEV_RESULT_IO_ERROR),
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&p_work->req,
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p_work->p_context
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};
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p_work->ev_handler(&p_sdc_dev->block_dev, &ev);
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}
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break;
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case SDC_EVT_WRITE:
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if (m_active_sdc_dev->p_work->ev_handler)
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{
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const nrf_block_dev_event_t ev = {
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NRF_BLOCK_DEV_EVT_BLK_WRITE_DONE,
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((p_event->result == SDC_SUCCESS) ? \
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NRF_BLOCK_DEV_RESULT_SUCCESS : NRF_BLOCK_DEV_RESULT_IO_ERROR),
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&p_work->req,
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p_work->p_context
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};
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p_work->ev_handler(&p_sdc_dev->block_dev, &ev);
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}
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break;
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default:
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APP_ERROR_CHECK(NRF_ERROR_INTERNAL);
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return;
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}
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}
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static ret_code_t block_dev_sdc_init(nrf_block_dev_t const * p_blk_dev,
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nrf_block_dev_ev_handler ev_handler,
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void const * p_context)
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{
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ASSERT(p_blk_dev);
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nrf_block_dev_sdc_t const * p_sdc_dev =
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CONTAINER_OF(p_blk_dev, nrf_block_dev_sdc_t, block_dev);
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nrf_block_dev_sdc_work_t * p_work = p_sdc_dev->p_work;
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if (p_sdc_dev->sdc_bdev_config.block_size != SDC_SECTOR_SIZE)
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{
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/* Unsupported block size. */
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return NRF_ERROR_NOT_SUPPORTED;
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}
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if (m_active_sdc_dev)
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{
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/* SDC instance is busy. */
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return NRF_ERROR_BUSY;
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}
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p_work->p_context = p_context;
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p_work->ev_handler = ev_handler;
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m_active_sdc_dev = p_sdc_dev;
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ret_code_t err_code = NRF_SUCCESS;
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err_code = app_sdc_init(&p_sdc_dev->sdc_bdev_config.sdc_config, sdc_handler);
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if (err_code == NRF_SUCCESS)
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{
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if (!ev_handler)
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{
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/* Synchronous mode - wait for the card. */
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sdc_wait();
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err_code = ((m_last_result == SDC_SUCCESS) ? NRF_SUCCESS : NRF_ERROR_TIMEOUT);
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}
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}
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if (err_code != NRF_SUCCESS)
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{
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m_active_sdc_dev = NULL;
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if (ev_handler)
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{
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/* Call the user handler with an error status. */
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const nrf_block_dev_event_t ev = {
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NRF_BLOCK_DEV_EVT_INIT,
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NRF_BLOCK_DEV_RESULT_IO_ERROR,
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NULL,
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p_work->p_context
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};
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p_work->ev_handler(p_blk_dev, &ev);
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}
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}
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return err_code;
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}
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static ret_code_t block_dev_sdc_uninit(nrf_block_dev_t const * p_blk_dev)
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{
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ASSERT(p_blk_dev);
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nrf_block_dev_sdc_t const * p_sdc_dev =
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CONTAINER_OF(p_blk_dev, nrf_block_dev_sdc_t, block_dev);
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nrf_block_dev_sdc_work_t * p_work = p_sdc_dev->p_work;
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if (m_active_sdc_dev != p_sdc_dev)
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{
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/* SDC instance is busy. */
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return NRF_ERROR_BUSY;
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}
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if (app_sdc_busy_check())
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{
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/* Previous asynchronous operation in progress. */
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return NRF_ERROR_BUSY;
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}
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ret_code_t err_code = app_sdc_uninit();
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if (err_code == NRF_SUCCESS)
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{
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/* Free the instance on success. */
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m_active_sdc_dev = NULL;
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}
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if (p_work->ev_handler)
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{
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/* SDC uninitialization is a synchronous operation. Call event handler. */
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const nrf_block_dev_event_t ev = {
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NRF_BLOCK_DEV_EVT_UNINIT,
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((err_code == NRF_SUCCESS) ? \
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NRF_BLOCK_DEV_RESULT_SUCCESS : NRF_BLOCK_DEV_RESULT_IO_ERROR),
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NULL,
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p_work->p_context
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};
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p_work->ev_handler(p_blk_dev, &ev);
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}
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return err_code;
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}
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static ret_code_t block_dev_sdc_read_req(nrf_block_dev_t const * p_blk_dev,
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nrf_block_req_t const * p_blk)
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{
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ASSERT(p_blk_dev);
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ASSERT(p_blk);
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nrf_block_dev_sdc_t const * p_sdc_dev =
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CONTAINER_OF(p_blk_dev, nrf_block_dev_sdc_t, block_dev);
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nrf_block_dev_sdc_work_t * p_work = p_sdc_dev->p_work;
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ret_code_t err_code = NRF_SUCCESS;
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if (m_active_sdc_dev != p_sdc_dev)
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{
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/* SDC instance is busy. */
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return NRF_ERROR_BUSY;
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}
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if (app_sdc_busy_check())
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{
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/* Previous asynchronous operation in progress. */
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return NRF_ERROR_BUSY;
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}
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p_work->req = *p_blk;
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err_code = app_sdc_block_read(p_blk->p_buff, p_blk->blk_id, p_blk->blk_count);
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if (err_code == NRF_SUCCESS)
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{
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if (!p_work->ev_handler)
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{
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/* Synchronous mode - wait for the card. */
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sdc_wait();
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err_code = ((m_last_result == SDC_SUCCESS) ? NRF_SUCCESS : NRF_ERROR_TIMEOUT);
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}
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}
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if ((p_work->ev_handler) && (err_code != NRF_SUCCESS))
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{
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/* Call the user handler with an error status. */
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const nrf_block_dev_event_t ev = {
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NRF_BLOCK_DEV_EVT_BLK_READ_DONE,
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NRF_BLOCK_DEV_RESULT_IO_ERROR,
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&p_work->req,
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p_work->p_context
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};
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p_work->ev_handler(p_blk_dev, &ev);
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}
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return err_code;
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}
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static ret_code_t block_dev_sdc_write_req(nrf_block_dev_t const * p_blk_dev,
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nrf_block_req_t const * p_blk)
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{
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ASSERT(p_blk_dev);
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ASSERT(p_blk);
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nrf_block_dev_sdc_t const * p_sdc_dev =
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CONTAINER_OF(p_blk_dev, nrf_block_dev_sdc_t, block_dev);
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nrf_block_dev_sdc_work_t * p_work = p_sdc_dev->p_work;
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ret_code_t err_code = NRF_SUCCESS;
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if (m_active_sdc_dev != p_sdc_dev)
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{
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/* SDC instance is busy. */
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return NRF_ERROR_BUSY;
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}
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if (app_sdc_busy_check())
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{
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/* Previous asynchronous operation in progress. */
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return NRF_ERROR_BUSY;
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}
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p_work->req = *p_blk;
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err_code = app_sdc_block_write(p_blk->p_buff, p_blk->blk_id, p_blk->blk_count);
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if (err_code == NRF_SUCCESS)
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{
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if (!p_work->ev_handler)
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{
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/* Synchronous mode - wait for the card. */
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sdc_wait();
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err_code = ((m_last_result == SDC_SUCCESS) ? NRF_SUCCESS : NRF_ERROR_TIMEOUT);
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}
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}
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if ((p_work->ev_handler) && (err_code != NRF_SUCCESS))
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{
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/* Call the user handler with an error status. */
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const nrf_block_dev_event_t ev = {
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NRF_BLOCK_DEV_EVT_BLK_READ_DONE,
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NRF_BLOCK_DEV_RESULT_IO_ERROR,
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&p_work->req,
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p_work->p_context
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};
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p_work->ev_handler(p_blk_dev, &ev);
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}
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return err_code;
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}
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static ret_code_t block_dev_sdc_ioctl(nrf_block_dev_t const * p_blk_dev,
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nrf_block_dev_ioctl_req_t req,
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void * p_data)
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{
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nrf_block_dev_sdc_t const * p_sdc_dev =
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CONTAINER_OF(p_blk_dev, nrf_block_dev_sdc_t, block_dev);
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switch (req)
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{
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case NRF_BLOCK_DEV_IOCTL_REQ_CACHE_FLUSH:
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{
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bool * p_flushing = p_data;
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if (p_flushing)
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{
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*p_flushing = false;
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}
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return NRF_SUCCESS;
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}
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case NRF_BLOCK_DEV_IOCTL_REQ_INFO_STRINGS:
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{
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if (p_data == NULL)
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{
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return NRF_ERROR_INVALID_PARAM;
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}
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nrf_block_dev_info_strings_t const * * pp_strings = p_data;
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*pp_strings = &p_sdc_dev->info_strings;
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return NRF_SUCCESS;
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}
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default:
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break;
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}
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return NRF_ERROR_NOT_SUPPORTED;
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}
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static nrf_block_dev_geometry_t const * block_dev_sdc_geometry(nrf_block_dev_t const * p_blk_dev)
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{
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ASSERT(p_blk_dev);
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nrf_block_dev_sdc_t const * p_sdc_dev =
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CONTAINER_OF(p_blk_dev, nrf_block_dev_sdc_t, block_dev);
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nrf_block_dev_sdc_work_t const * p_work = p_sdc_dev->p_work;
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return &p_work->geometry;
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}
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const nrf_block_dev_ops_t nrf_block_device_sdc_ops = {
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.init = block_dev_sdc_init,
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.uninit = block_dev_sdc_uninit,
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.read_req = block_dev_sdc_read_req,
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.write_req = block_dev_sdc_write_req,
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.ioctl = block_dev_sdc_ioctl,
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.geometry = block_dev_sdc_geometry,
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};
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/** @} */
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