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- /**
- * Copyright (c) 2016 - 2020, 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 "nrf_block_dev_sdc.h"
- /**@file
- *
- * @ingroup nrf_block_dev_sdc
- * @{
- *
- * @brief This module implements block device API. It should be used as a reference block device.
- */
- static volatile sdc_result_t m_last_result;
- /**
- * @brief Active SDC block device handle. Only one instance.
- * */
- static nrf_block_dev_sdc_t const * m_active_sdc_dev;
- static ret_code_t block_dev_sdc_uninit(nrf_block_dev_t const * p_blk_dev);
- static void wait_func(void)
- {
- }
- static void sdc_wait()
- {
- while (app_sdc_busy_check())
- {
- wait_func();
- }
- }
- static void sdc_handler(sdc_evt_t const * p_event)
- {
- m_last_result = p_event->result;
- nrf_block_dev_sdc_t const * p_sdc_dev = m_active_sdc_dev;
- nrf_block_dev_sdc_work_t * p_work = p_sdc_dev->p_work;
- switch (p_event->type)
- {
- case SDC_EVT_INIT:
- {
- if (p_event->result != SDC_SUCCESS)
- {
- nrf_block_dev_t const * block_dev = &(p_sdc_dev->block_dev);
- ret_code_t err_code = block_dev_sdc_uninit(block_dev);
- APP_ERROR_CHECK(err_code);
- }
- p_work->geometry.blk_count = app_sdc_info_get()->num_blocks;
- p_work->geometry.blk_size = SDC_SECTOR_SIZE;
- if (m_active_sdc_dev->p_work->ev_handler)
- {
- const nrf_block_dev_event_t ev = {
- NRF_BLOCK_DEV_EVT_INIT,
- ((p_event->result == SDC_SUCCESS) ? \
- NRF_BLOCK_DEV_RESULT_SUCCESS : NRF_BLOCK_DEV_RESULT_IO_ERROR),
- NULL,
- p_work->p_context
- };
- p_work->ev_handler(&p_sdc_dev->block_dev, &ev);
- }
- }
- break;
- case SDC_EVT_READ:
- if (m_active_sdc_dev->p_work->ev_handler)
- {
- const nrf_block_dev_event_t ev = {
- NRF_BLOCK_DEV_EVT_BLK_READ_DONE,
- ((p_event->result == SDC_SUCCESS) ? \
- NRF_BLOCK_DEV_RESULT_SUCCESS : NRF_BLOCK_DEV_RESULT_IO_ERROR),
- &p_work->req,
- p_work->p_context
- };
- p_work->ev_handler(&p_sdc_dev->block_dev, &ev);
- }
- break;
- case SDC_EVT_WRITE:
- if (m_active_sdc_dev->p_work->ev_handler)
- {
- const nrf_block_dev_event_t ev = {
- NRF_BLOCK_DEV_EVT_BLK_WRITE_DONE,
- ((p_event->result == SDC_SUCCESS) ? \
- NRF_BLOCK_DEV_RESULT_SUCCESS : NRF_BLOCK_DEV_RESULT_IO_ERROR),
- &p_work->req,
- p_work->p_context
- };
- p_work->ev_handler(&p_sdc_dev->block_dev, &ev);
- }
- break;
- default:
- APP_ERROR_CHECK(NRF_ERROR_INTERNAL);
- return;
- }
- }
- static ret_code_t block_dev_sdc_init(nrf_block_dev_t const * p_blk_dev,
- nrf_block_dev_ev_handler ev_handler,
- void const * p_context)
- {
- ASSERT(p_blk_dev);
- nrf_block_dev_sdc_t const * p_sdc_dev =
- CONTAINER_OF(p_blk_dev, nrf_block_dev_sdc_t, block_dev);
- nrf_block_dev_sdc_work_t * p_work = p_sdc_dev->p_work;
- if (p_sdc_dev->sdc_bdev_config.block_size != SDC_SECTOR_SIZE)
- {
- /* Unsupported block size. */
- return NRF_ERROR_NOT_SUPPORTED;
- }
- if (m_active_sdc_dev)
- {
- /* SDC instance is busy. */
- return NRF_ERROR_BUSY;
- }
- p_work->p_context = p_context;
- p_work->ev_handler = ev_handler;
- m_active_sdc_dev = p_sdc_dev;
- ret_code_t err_code = NRF_SUCCESS;
- err_code = app_sdc_init(&p_sdc_dev->sdc_bdev_config.sdc_config, sdc_handler);
- if (err_code == NRF_SUCCESS)
- {
- if (!ev_handler)
- {
- /* Synchronous mode - wait for the card. */
- sdc_wait();
- err_code = ((m_last_result == SDC_SUCCESS) ? NRF_SUCCESS : NRF_ERROR_TIMEOUT);
- }
- }
- if (err_code != NRF_SUCCESS)
- {
- m_active_sdc_dev = NULL;
- if (ev_handler)
- {
- /* Call the user handler with an error status. */
- const nrf_block_dev_event_t ev = {
- NRF_BLOCK_DEV_EVT_INIT,
- NRF_BLOCK_DEV_RESULT_IO_ERROR,
- NULL,
- p_work->p_context
- };
- p_work->ev_handler(p_blk_dev, &ev);
- }
- }
- return err_code;
- }
- static ret_code_t block_dev_sdc_uninit(nrf_block_dev_t const * p_blk_dev)
- {
- ASSERT(p_blk_dev);
- nrf_block_dev_sdc_t const * p_sdc_dev =
- CONTAINER_OF(p_blk_dev, nrf_block_dev_sdc_t, block_dev);
- nrf_block_dev_sdc_work_t * p_work = p_sdc_dev->p_work;
- if (m_active_sdc_dev != p_sdc_dev)
- {
- /* SDC instance is busy. */
- return NRF_ERROR_BUSY;
- }
- if (app_sdc_busy_check())
- {
- /* Previous asynchronous operation in progress. */
- return NRF_ERROR_BUSY;
- }
- ret_code_t err_code = app_sdc_uninit();
- if (err_code == NRF_SUCCESS)
- {
- /* Free the instance on success. */
- m_active_sdc_dev = NULL;
- }
- if (p_work->ev_handler)
- {
- /* SDC uninitialization is a synchronous operation. Call event handler. */
- const nrf_block_dev_event_t ev = {
- NRF_BLOCK_DEV_EVT_UNINIT,
- ((err_code == NRF_SUCCESS) ? \
- NRF_BLOCK_DEV_RESULT_SUCCESS : NRF_BLOCK_DEV_RESULT_IO_ERROR),
- NULL,
- p_work->p_context
- };
- p_work->ev_handler(p_blk_dev, &ev);
- }
- return err_code;
- }
- static ret_code_t block_dev_sdc_read_req(nrf_block_dev_t const * p_blk_dev,
- nrf_block_req_t const * p_blk)
- {
- ASSERT(p_blk_dev);
- ASSERT(p_blk);
- nrf_block_dev_sdc_t const * p_sdc_dev =
- CONTAINER_OF(p_blk_dev, nrf_block_dev_sdc_t, block_dev);
- nrf_block_dev_sdc_work_t * p_work = p_sdc_dev->p_work;
- ret_code_t err_code = NRF_SUCCESS;
- if (m_active_sdc_dev != p_sdc_dev)
- {
- /* SDC instance is busy. */
- return NRF_ERROR_BUSY;
- }
- if (app_sdc_busy_check())
- {
- /* Previous asynchronous operation in progress. */
- return NRF_ERROR_BUSY;
- }
- p_work->req = *p_blk;
- err_code = app_sdc_block_read(p_blk->p_buff, p_blk->blk_id, p_blk->blk_count);
- if (err_code == NRF_SUCCESS)
- {
- if (!p_work->ev_handler)
- {
- /* Synchronous mode - wait for the card. */
- sdc_wait();
- err_code = ((m_last_result == SDC_SUCCESS) ? NRF_SUCCESS : NRF_ERROR_TIMEOUT);
- }
- }
- if ((p_work->ev_handler) && (err_code != NRF_SUCCESS))
- {
- /* Call the user handler with an error status. */
- const nrf_block_dev_event_t ev = {
- NRF_BLOCK_DEV_EVT_BLK_READ_DONE,
- NRF_BLOCK_DEV_RESULT_IO_ERROR,
- &p_work->req,
- p_work->p_context
- };
- p_work->ev_handler(p_blk_dev, &ev);
- }
- return err_code;
- }
- static ret_code_t block_dev_sdc_write_req(nrf_block_dev_t const * p_blk_dev,
- nrf_block_req_t const * p_blk)
- {
- ASSERT(p_blk_dev);
- ASSERT(p_blk);
- nrf_block_dev_sdc_t const * p_sdc_dev =
- CONTAINER_OF(p_blk_dev, nrf_block_dev_sdc_t, block_dev);
- nrf_block_dev_sdc_work_t * p_work = p_sdc_dev->p_work;
- ret_code_t err_code = NRF_SUCCESS;
- if (m_active_sdc_dev != p_sdc_dev)
- {
- /* SDC instance is busy. */
- return NRF_ERROR_BUSY;
- }
- if (app_sdc_busy_check())
- {
- /* Previous asynchronous operation in progress. */
- return NRF_ERROR_BUSY;
- }
- p_work->req = *p_blk;
- err_code = app_sdc_block_write(p_blk->p_buff, p_blk->blk_id, p_blk->blk_count);
- if (err_code == NRF_SUCCESS)
- {
- if (!p_work->ev_handler)
- {
- /* Synchronous mode - wait for the card. */
- sdc_wait();
- err_code = ((m_last_result == SDC_SUCCESS) ? NRF_SUCCESS : NRF_ERROR_TIMEOUT);
- }
- }
- if ((p_work->ev_handler) && (err_code != NRF_SUCCESS))
- {
- /* Call the user handler with an error status. */
- const nrf_block_dev_event_t ev = {
- NRF_BLOCK_DEV_EVT_BLK_READ_DONE,
- NRF_BLOCK_DEV_RESULT_IO_ERROR,
- &p_work->req,
- p_work->p_context
- };
- p_work->ev_handler(p_blk_dev, &ev);
- }
- return err_code;
- }
- static ret_code_t block_dev_sdc_ioctl(nrf_block_dev_t const * p_blk_dev,
- nrf_block_dev_ioctl_req_t req,
- void * p_data)
- {
- nrf_block_dev_sdc_t const * p_sdc_dev =
- CONTAINER_OF(p_blk_dev, nrf_block_dev_sdc_t, block_dev);
- switch (req)
- {
- case NRF_BLOCK_DEV_IOCTL_REQ_CACHE_FLUSH:
- {
- bool * p_flushing = p_data;
- if (p_flushing)
- {
- *p_flushing = false;
- }
- return NRF_SUCCESS;
- }
- case NRF_BLOCK_DEV_IOCTL_REQ_INFO_STRINGS:
- {
- if (p_data == NULL)
- {
- return NRF_ERROR_INVALID_PARAM;
- }
- nrf_block_dev_info_strings_t const * * pp_strings = p_data;
- *pp_strings = &p_sdc_dev->info_strings;
- return NRF_SUCCESS;
- }
- default:
- break;
- }
- return NRF_ERROR_NOT_SUPPORTED;
- }
- static nrf_block_dev_geometry_t const * block_dev_sdc_geometry(nrf_block_dev_t const * p_blk_dev)
- {
- ASSERT(p_blk_dev);
- nrf_block_dev_sdc_t const * p_sdc_dev =
- CONTAINER_OF(p_blk_dev, nrf_block_dev_sdc_t, block_dev);
- nrf_block_dev_sdc_work_t const * p_work = p_sdc_dev->p_work;
- return &p_work->geometry;
- }
- const nrf_block_dev_ops_t nrf_block_device_sdc_ops = {
- .init = block_dev_sdc_init,
- .uninit = block_dev_sdc_uninit,
- .read_req = block_dev_sdc_read_req,
- .write_req = block_dev_sdc_write_req,
- .ioctl = block_dev_sdc_ioctl,
- .geometry = block_dev_sdc_geometry,
- };
- /** @} */
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