56 lines
2.2 KiB
C
56 lines
2.2 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
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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
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* THE SOFTWARE.
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*/
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#include "common-hal/nvm/ByteArray.h"
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#include "hal_flash.h"
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#include "supervisor/shared/stack.h"
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#include <stdint.h>
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#include <string.h>
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uint32_t common_hal_nvm_bytearray_get_length(nvm_bytearray_obj_t *self) {
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return self->len;
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}
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bool common_hal_nvm_bytearray_set_bytes(nvm_bytearray_obj_t *self,
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uint32_t start_index, uint8_t* values, uint32_t len) {
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// We don't use features that use any advanced NVMCTRL features so we can fake the descriptor
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// whenever we need it instead of storing it long term.
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struct flash_descriptor desc;
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desc.dev.hw = NVMCTRL;
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bool status = flash_write(&desc, (uint32_t) self->start_address + start_index, values, len) == ERR_NONE;
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assert_heap_ok();
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return status;
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}
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// NVM memory is memory mapped so reading it is easy.
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void common_hal_nvm_bytearray_get_bytes(nvm_bytearray_obj_t *self,
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uint32_t start_index, uint32_t len, uint8_t* values) {
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memcpy(values, self->start_address + start_index, len);
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}
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