distortos::anonymous_namespace{Littlefs1FileSystem.cpp} Namespace Reference

Functions
int	countUsedBlocks (void *const data, lfs1_block_t)
	Callback for lfs1_traverse() that counts block used by file system. More...
int	errorCodeToLittlefs1Error (const int errorCode)
	Converts error code to littlefs-v1 error. More...
int	littlefs1MemoryTechnologyDeviceErase (const lfs1_config *const configuration, const lfs1_block_t block)
	Wrapper for MemoryTechnologyDevice::erase() More...
int	littlefs1MemoryTechnologyDeviceProgram (const lfs1_config *const configuration, const lfs1_block_t block, const lfs1_off_t offset, const void *const buffer, const lfs1_size_t size)
	Wrapper for MemoryTechnologyDevice::program() More...
int	littlefs1MemoryTechnologyDeviceRead (const lfs1_config *const configuration, const lfs1_block_t block, const lfs1_off_t offset, void *const buffer, const lfs1_size_t size)
	Wrapper for MemoryTechnologyDevice::read() More...
int	littlefs1MemoryTechnologyDeviceSynchronize (const lfs1_config *const configuration)
	Wrapper for MemoryTechnologyDevice::synchronize() More...

Variables
constexpr size_t	alignment {DISTORTOS_MEMORYTECHNOLOGYDEVICE_BUFFER_ALIGNMENT}
	required buffer alignment of memory technology device More...
constexpr size_t	alignmentMargin {alignment > 8 ? alignment - 8 : 0}
	margin between platform's biggest alignment and required buffer alignment More...

Function Documentation

countUsedBlocks()

int distortos::anonymous_namespace{Littlefs1FileSystem.cpp}::countUsedBlocks	(	void *const	data,
		lfs1_block_t
	)

Callback for lfs1_traverse() that counts block used by file system.

Idea from https://github.com/ARMmbed/littlefs1/issues/1#issuecomment-355116984

Parameters

[out]

data

is a pointer to size_t variable with number of used blocks

Returns

always 0

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errorCodeToLittlefs1Error()

int distortos::anonymous_namespace{Littlefs1FileSystem.cpp}::errorCodeToLittlefs1Error

(

const int

errorCode

)

Converts error code to littlefs-v1 error.

Parameters

[in]

errorCode

is an error code

Returns

errorCode converted to littlefs-v1 error

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littlefs1MemoryTechnologyDeviceErase()

int distortos::anonymous_namespace{Littlefs1FileSystem.cpp}::littlefs1MemoryTechnologyDeviceErase	(	const lfs1_config *const	configuration,
		const lfs1_block_t	block
	)

Wrapper for MemoryTechnologyDevice::erase()

Parameters

[in]	configuration	is a pointer to littlefs-v1 configuration
[in]	block	is the index of block that will be erased

Returns

LFS1_ERR_OK on success, error code otherwise:

• converted error codes returned by MemoryTechnologyDevice::erase();

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littlefs1MemoryTechnologyDeviceProgram()

int distortos::anonymous_namespace{Littlefs1FileSystem.cpp}::littlefs1MemoryTechnologyDeviceProgram	(	const lfs1_config *const	configuration,
		const lfs1_block_t	block,
		const lfs1_off_t	offset,
		const void *const	buffer,
		const lfs1_size_t	size
	)

Wrapper for MemoryTechnologyDevice::program()

Parameters

[in]	configuration	is a pointer to littlefs-v1 configuration
[in]	block	is the index of block that will be programmed
[in]	offset	is the offset of area that will be programmed, bytes
[in]	buffer	is the buffer with data that will be programmed
[in]	size	is the size of buffer, bytes

Returns

LFS1_ERR_OK on success, error code otherwise:

• converted error codes returned by MemoryTechnologyDevice::program();

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littlefs1MemoryTechnologyDeviceRead()

int distortos::anonymous_namespace{Littlefs1FileSystem.cpp}::littlefs1MemoryTechnologyDeviceRead	(	const lfs1_config *const	configuration,
		const lfs1_block_t	block,
		const lfs1_off_t	offset,
		void *const	buffer,
		const lfs1_size_t	size
	)

Wrapper for MemoryTechnologyDevice::read()

Parameters

[in]	configuration	is a pointer to littlefs-v1 configuration
[in]	block	is the index of block that will be read
[in]	offset	is the offset of area that will be read, bytes
[out]	buffer	is the buffer into which the data will be read
[in]	size	is the size of buffer, bytes

Returns

LFS1_ERR_OK on success, error code otherwise:

• converted error codes returned by MemoryTechnologyDevice::read();

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littlefs1MemoryTechnologyDeviceSynchronize()

int distortos::anonymous_namespace{Littlefs1FileSystem.cpp}::littlefs1MemoryTechnologyDeviceSynchronize

(

const lfs1_config *const

configuration

)

Wrapper for MemoryTechnologyDevice::synchronize()

Parameters

[in]

configuration

is a pointer to littlefs-v1 configuration

Returns

LFS1_ERR_OK on success, error code otherwise:

• converted error codes returned by MemoryTechnologyDevice::synchronize();

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Variable Documentation

alignment

constexpr size_t distortos::anonymous_namespace{Littlefs1FileSystem.cpp}::alignment {DISTORTOS_MEMORYTECHNOLOGYDEVICE_BUFFER_ALIGNMENT}

required buffer alignment of memory technology device

alignmentMargin

constexpr size_t distortos::anonymous_namespace{Littlefs1FileSystem.cpp}::alignmentMargin {alignment > 8 ? alignment - 8 : 0}

margin between platform's biggest alignment and required buffer alignment