61 lines
2.4 KiB
C
61 lines
2.4 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) 2013, 2014 Damien P. George
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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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#ifndef MICROPY_INCLUDED_ATMEL_SAMD_EXTERNAL_FLASH_H
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#define MICROPY_INCLUDED_ATMEL_SAMD_EXTERNAL_FLASH_H
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#include <stdbool.h>
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#include "mpconfigport.h"
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// We use this when we can allocate the whole cache in RAM.
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#define FLASH_ROOT_POINTERS \
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uint8_t** flash_ram_cache; \
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// Erase sector size.
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#define SPI_FLASH_SECTOR_SIZE (0x1000 - 100)
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#define SPI_FLASH_SYSTICK_MASK (0x1ff) // 512ms
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#define SPI_FLASH_IDLE_TICK(tick) (((tick) & SPI_FLASH_SYSTICK_MASK) == 2)
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void external_flash_init(void);
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uint32_t external_flash_get_block_size(void);
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uint32_t external_flash_get_block_count(void);
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void external_flash_irq_handler(void);
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void external_flash_flush(void);
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bool external_flash_read_block(uint8_t *dest, uint32_t block);
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bool external_flash_write_block(const uint8_t *src, uint32_t block);
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// these return 0 on success, non-zero on error
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mp_uint_t external_flash_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks);
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mp_uint_t external_flash_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks);
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extern const struct _mp_obj_type_t external_flash_type;
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struct _fs_user_mount_t;
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void flash_init_vfs(struct _fs_user_mount_t *vfs);
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#endif // MICROPY_INCLUDED_ATMEL_SAMD_EXTERNAL_FLASH_H
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