b33a770596
This patch adds support to fsusermount for multiple block devices (instead of just one). The maximum allowed is fixed at compile time by the size of the fs_user_mount array accessed via MP_STATE_PORT, which in turn is set by MICROPY_FATFS_VOLUMES. With this patch, stmhal (which is still tightly coupled to fsusermount) is also modified to support mounting multiple devices And the flash and SD card are now just two block devices that are mounted at start up if they exist (and they have special native code to make them more efficient).
48 lines
2.0 KiB
C
48 lines
2.0 KiB
C
/*
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* This file is part of the Micro Python 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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#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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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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