mirror of https://github.com/ARMmbed/mbed-os.git
98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
/*
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* Copyright (c) 2020 SparkFun Electronics
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "flash_api.h"
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#include <string.h>
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int32_t flash_init(flash_t *obj)
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{
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return 0;
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}
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int32_t flash_free(flash_t *obj)
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{
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return 0;
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}
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int32_t flash_erase_sector(flash_t *obj, uint32_t address)
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{
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if (!ISADDRFLASH(address)) {
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return -1;
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}
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uint32_t status = am_hal_flash_page_erase(AM_HAL_FLASH_PROGRAM_KEY, AM_HAL_FLASH_ADDR2INST(address), AM_HAL_FLASH_ADDR2PAGE(address));
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if (status != AM_HAL_STATUS_SUCCESS) {
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return -1;
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}
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return 0;
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}
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int32_t flash_read(flash_t *obj, uint32_t address, uint8_t *data, uint32_t size)
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{
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memcpy(data, (void *)address, size);
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return 0;
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}
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int32_t flash_program_page(flash_t *obj, uint32_t address, const uint8_t *data, uint32_t size)
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{
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if (address & 0x03) {
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return -1;
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}
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if (((uint32_t)data) & 0x03) {
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return -1;
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}
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uint32_t words = (size + 3) / 4;
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uint32_t status = am_hal_flash_program_main(AM_HAL_FLASH_PROGRAM_KEY, (uint32_t *)data, (uint32_t *)address, words);
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if (status != AM_HAL_STATUS_SUCCESS) {
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return -1;
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}
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return 0;
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}
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uint32_t flash_get_sector_size(const flash_t *obj, uint32_t address)
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{
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if (address > AM_HAL_FLASH_LARGEST_VALID_ADDR) {
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return -1;
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}
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return AM_HAL_FLASH_PAGE_SIZE;
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}
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uint32_t flash_get_page_size(const flash_t *obj)
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{
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return 4;
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}
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uint32_t flash_get_start_address(const flash_t *obj)
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{
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return AM_HAL_FLASH_ADDR;
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}
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uint32_t flash_get_size(const flash_t *obj)
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{
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return AM_HAL_FLASH_TOTAL_SIZE;
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}
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uint8_t flash_get_erase_value(const flash_t *obj)
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{
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return 0xFF;
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}
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