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fa13e0d35b
Prior to this patch, storage.c was a combination of code that handled either internal flash or external SPI flash and exposed one of them as a block device for the local storage. It was also exposed to the USB MSC. This patch splits out the flash and SPI code to separate files, which each provide a general block-device interface (at the C level). Then storage.c just picks one of them to use as the local storage medium. The aim of this factoring is to allow to add new block devices in the future and allow for easier configurability.
63 lines
2.5 KiB
C
63 lines
2.5 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_STMHAL_STORAGE_H
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#define MICROPY_INCLUDED_STMHAL_STORAGE_H
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#define FLASH_BLOCK_SIZE (512)
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#define STORAGE_SYSTICK_MASK (0x1ff) // 512ms
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#define STORAGE_IDLE_TICK(tick) (((tick) & STORAGE_SYSTICK_MASK) == 2)
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void storage_init(void);
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uint32_t storage_get_block_size(void);
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uint32_t storage_get_block_count(void);
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void storage_irq_handler(void);
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void storage_flush(void);
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bool storage_read_block(uint8_t *dest, uint32_t block);
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bool storage_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 storage_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks);
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mp_uint_t storage_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks);
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uint32_t flash_bdev_num_blocks(void);
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void flash_bdev_init(void);
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void flash_bdev_irq_handler(void);
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void flash_bdev_flush(void);
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bool flash_bdev_readblock(uint8_t *dest, uint32_t block);
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bool flash_bdev_writeblock(const uint8_t *src, uint32_t block);
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void spi_bdev_init(void);
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bool spi_bdev_readblock(uint8_t *dest, uint32_t block);
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bool spi_bdev_writeblock(const uint8_t *src, uint32_t block);
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extern const struct _mp_obj_type_t pyb_flash_type;
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struct _fs_user_mount_t;
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void pyb_flash_init_vfs(struct _fs_user_mount_t *vfs);
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#endif // MICROPY_INCLUDED_STMHAL_STORAGE_H
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