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186 lines
6.5 KiB
186 lines
6.5 KiB
/**
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* Copyright (c) 2017 - 2021, 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 <stddef.h>
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#include <string.h>
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#include "app_error.h"
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#include "sdk_macros.h"
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#include "nrf_dfu_settings.h"
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#include "nrf_nvmc.h"
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#include "crc32.h"
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#define NRF_LOG_MODULE_NAME nrf_dfu_settings_svci
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#include "nrf_log.h"
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NRF_LOG_MODULE_REGISTER();
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#define DFU_SETTINGS_PEER_DATA_OFFSET offsetof(nrf_dfu_settings_t, peer_data) //<! Offset in the settings struct where the additional peer data is located.
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#define DFU_SETTINGS_ADV_NAME_OFFSET offsetof(nrf_dfu_settings_t, adv_name) //<! Offset in the settings struct where the additional advertisement name is located.
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extern nrf_dfu_settings_t s_dfu_settings;
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extern uint8_t m_dfu_settings_buffer[CODE_PAGE_SIZE];
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#if defined(NRF_DFU_BLE_REQUIRES_BONDS) && (NRF_DFU_BLE_REQUIRES_BONDS == 1)
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ret_code_t nrf_dfu_settings_peer_data_write(nrf_dfu_peer_data_t * p_data)
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{
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uint32_t ret_val;
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uint32_t * p_peer_data_settings =
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(uint32_t*) &m_dfu_settings_buffer[DFU_SETTINGS_PEER_DATA_OFFSET];
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uint32_t crc = (uint32_t)*p_peer_data_settings;
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VERIFY_PARAM_NOT_NULL(p_data);
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if (crc != 0xFFFFFFFF)
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{
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// Already written to, must be cleared out
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// Reset required.
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return NRF_ERROR_INVALID_STATE;
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}
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// Calculate the CRC for the structure excluding the CRC value itself.
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p_data->crc = crc32_compute((uint8_t*)p_data + 4, sizeof(nrf_dfu_peer_data_t) - 4, NULL);
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// Using SoftDevice call since this function cannot use static memory.
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ret_val = sd_flash_write(p_peer_data_settings,
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(uint32_t*)p_data,
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sizeof(nrf_dfu_peer_data_t)/4);
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return ret_val;
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}
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ret_code_t nrf_dfu_settings_peer_data_copy(nrf_dfu_peer_data_t * p_data)
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{
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VERIFY_PARAM_NOT_NULL(p_data);
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memcpy(p_data, &m_dfu_settings_buffer[DFU_SETTINGS_PEER_DATA_OFFSET], sizeof(nrf_dfu_peer_data_t));
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return NRF_SUCCESS;
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}
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bool nrf_dfu_settings_peer_data_is_valid(void)
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{
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nrf_dfu_peer_data_t * p_peer_data =
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(nrf_dfu_peer_data_t*) &m_dfu_settings_buffer[DFU_SETTINGS_PEER_DATA_OFFSET];
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// Calculate the CRC for the structure excluding the CRC value itself.
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uint32_t crc = crc32_compute((uint8_t*)p_peer_data + 4, sizeof(nrf_dfu_peer_data_t) - 4, NULL);
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return (p_peer_data->crc == crc);
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}
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#else // not NRF_DFU_BLE_REQUIRES_BONDS
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ret_code_t nrf_dfu_settings_adv_name_write(nrf_dfu_adv_name_t * p_adv_name)
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{
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uint32_t ret_val;
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uint32_t * p_adv_name_settings =
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(uint32_t*) &m_dfu_settings_buffer[DFU_SETTINGS_ADV_NAME_OFFSET];
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uint32_t crc = (uint32_t)*p_adv_name_settings;
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VERIFY_PARAM_NOT_NULL(p_adv_name);
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if (crc != 0xFFFFFFFF)
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{
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// Already written to, must be cleared out.
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// Reset required
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return NRF_ERROR_INVALID_STATE;
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}
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// Calculate the CRC for the structure excluding the CRC value itself.
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p_adv_name->crc = crc32_compute((uint8_t *)p_adv_name + 4, sizeof(nrf_dfu_adv_name_t) - 4, NULL);
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// Using SoftDevice call since this function cannot use static memory.
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ret_val = sd_flash_write(p_adv_name_settings,
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(uint32_t*) p_adv_name,
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sizeof(nrf_dfu_adv_name_t)/4);
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return ret_val;
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}
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ret_code_t nrf_dfu_settings_adv_name_copy(nrf_dfu_adv_name_t * p_adv_name)
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{
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VERIFY_PARAM_NOT_NULL(p_adv_name);
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memcpy(p_adv_name, &m_dfu_settings_buffer[DFU_SETTINGS_ADV_NAME_OFFSET], sizeof(nrf_dfu_adv_name_t));
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return NRF_SUCCESS;
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}
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bool nrf_dfu_settings_adv_name_is_valid(void)
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{
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nrf_dfu_adv_name_t * p_adv_name =
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(nrf_dfu_adv_name_t*)&m_dfu_settings_buffer[DFU_SETTINGS_ADV_NAME_OFFSET];
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// Calculate the CRC for the structure excluding the CRC value itself.
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uint32_t crc = crc32_compute((uint8_t*)p_adv_name + 4, sizeof(nrf_dfu_adv_name_t) - 4, NULL);
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return (p_adv_name->crc == crc);
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}
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#endif
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//lint -save -e(14)
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ret_code_t nrf_dfu_settings_additional_erase(void)
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{
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ret_code_t ret_code = NRF_SUCCESS;
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// Check CRC for both types.
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if ( (s_dfu_settings.peer_data.crc != 0xFFFFFFFF)
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|| (s_dfu_settings.adv_name.crc != 0xFFFFFFFF))
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{
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NRF_LOG_DEBUG("Erasing settings page additional data.");
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// Erasing and resetting the settings page without the peer data/adv data
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nrf_nvmc_page_erase(BOOTLOADER_SETTINGS_ADDRESS);
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nrf_nvmc_write_words(BOOTLOADER_SETTINGS_ADDRESS, (uint32_t const *)&s_dfu_settings, DFU_SETTINGS_PEER_DATA_OFFSET / 4);
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}
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return ret_code;
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}
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//lint -restore
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