px4_mtd.h
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/****************************************************************************
*
* Copyright (c) 2020 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#pragma once
#include <stdint.h>
__BEGIN_DECLS
// The data needed to interface with mtd device's
typedef struct {
struct mtd_dev_s *mtd_dev;
int *partition_block_counts;
int *partition_types;
const char **partition_names;
struct mtd_dev_s **part_dev;
uint32_t devid;
unsigned n_partitions_current;
} mtd_instance_s;
/*
mtd operations
*/
/*
* Get device an pinter to the array of mtd_instance_s of the system
* count - receives the number of instances pointed to by the pointer
* retunred.
*
* returns: - A pointer to the mtd_instance_s of the system
* This can be Null if there are no mtd instances.
*
*/
__EXPORT mtd_instance_s *px4_mtd_get_instances(unsigned int *count);
/*
Get device complete geometry or a device
*/
__EXPORT int px4_mtd_get_geometry(const mtd_instance_s *instance, unsigned long *blocksize, unsigned long *erasesize,
unsigned long *neraseblocks, unsigned *blkpererase, unsigned *nblocks,
unsigned *partsize);
/*
Get size of a parttion on an instance.
*/
__EXPORT ssize_t px4_mtd_get_partition_size(const mtd_instance_s *instance, const char *partname);
FAR struct mtd_dev_s *px4_at24c_initialize(FAR struct i2c_master_s *dev,
uint8_t address);
__END_DECLS