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circuitpython/atmel-samd/spi_flash.h

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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_ATMEL_SAMD_SPI_FLASH_H
#define MICROPY_INCLUDED_ATMEL_SAMD_SPI_FLASH_H
#include <stdbool.h>
#include "mpconfigport.h"
// We use this when we can allocate the whole cache in RAM.
#define FLASH_ROOT_POINTERS \
uint8_t** flash_ram_cache; \
// Erase sector size.
#define SPI_FLASH_SECTOR_SIZE (0x1000 - 100)
#define SPI_FLASH_SYSTICK_MASK (0x1ff) // 512ms
#define SPI_FLASH_IDLE_TICK(tick) (((tick) & SPI_FLASH_SYSTICK_MASK) == 2)
void spi_flash_init(void);
uint32_t spi_flash_get_block_size(void);
uint32_t spi_flash_get_block_count(void);
void spi_flash_irq_handler(void);
void spi_flash_flush(void);
bool spi_flash_read_block(uint8_t *dest, uint32_t block);
bool spi_flash_write_block(const uint8_t *src, uint32_t block);
// these return 0 on success, non-zero on error
mp_uint_t spi_flash_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks);
mp_uint_t spi_flash_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks);
extern const struct _mp_obj_type_t spi_flash_type;
struct _fs_user_mount_t;
void flash_init_vfs(struct _fs_user_mount_t *vfs);
#endif // MICROPY_INCLUDED_ATMEL_SAMD_SPI_FLASH_H