modules/minfs/minfs.c File Reference

#include <string.h>
#include "minfs.h"

Defines
#define	BE_SWAP_16(val)
#define	BE_SWAP_32(val)
#define	LE_GET(dst, p_src, len)
#define	LE_SET(p_dst, src, len)
#define	TC_SET(p_dst, src, len)
#define	TC_GET(dst, p_src, len)
#define	CALC_PEC(p_buf, data_len, pec_val_inttype, pec_val)
#define	MINFS_RW_MODE_READ 0
#define	MINFS_RW_MODE_WRITE 1
Functions
int32_t	MINFS_Read (MINFS_fs_t p_fs, MINFS_block_buf_t p_block_buf, uint16_t data_offset, uint16_t data_len)
int32_t	MINFS_Write (MINFS_fs_t p_fs, MINFS_block_buf_t p_block_buf, uint16_t data_offset, uint16_t data_len)
int32_t	MINFS_GetBlockBuffer (MINFS_fs_t p_fs, MINFS_block_buf_t *pp_block_buf, uint32_t block_n, uint32_t file_id)
int32_t	MINFS_InitBlockBuffer (MINFS_block_buf_t *p_block_buf)
int32_t	MINFS_FlushBlockBuffer (MINFS_fs_t p_fs, MINFS_block_buf_t p_block_buf)
int32_t	MINFS_Format (MINFS_fs_t p_fs, MINFS_block_buf_t p_block_buf)
int32_t	MINFS_FSOpen (MINFS_fs_t p_fs, MINFS_block_buf_t p_block_buf)
int32_t	MINFS_FileOpen (MINFS_fs_t p_fs, uint32_t file_id, MINFS_file_t p_file, MINFS_block_buf_t *p_block_buf)
int32_t	MINFS_FileRead (MINFS_file_t p_file, void p_buf, uint32_t p_len, MINFS_block_buf_t p_block_buf)
int32_t	MINFS_FileWrite (MINFS_file_t p_file, void p_buf, uint32_t len, MINFS_block_buf_t *p_block_buf)
int32_t	MINFS_FileSeek (MINFS_file_t p_file, uint32_t pos, MINFS_block_buf_t p_block_buf)
int32_t	MINFS_FileSetSize (MINFS_file_t p_file, uint32_t new_size, MINFS_block_buf_t p_block_buf)
int32_t	MINFS_FileTouch (MINFS_fs_t p_fs, uint32_t file_id, MINFS_block_buf_t p_block_buf)
int32_t	MINFS_FileUnlink (MINFS_fs_t p_fs, uint32_t file_id, uint8_t check_last_truncate, MINFS_block_buf_t p_block_buf)
int32_t	MINFS_FileMove (MINFS_fs_t p_fs, uint32_t src_file_id, uint32_t dst_file_id, uint8_t check_last_truncate, MINFS_block_buf_t p_block_buf)
int32_t	MINFS_FileExists (MINFS_fs_t p_fs, uint32_t file_id, MINFS_block_buf_t p_block_buf)
int32_t	MINFS_FileGetFreeID (MINFS_fs_t p_fs, uint8_t mode, MINFS_block_buf_t p_block_buf)
int32_t	MINFS_FileIndexTruncate (MINFS_fs_t p_fs, MINFS_block_buf_t p_block_buf)

Define Documentation

#define BE_SWAP_16 ( val )

Value:

if( *( (uint8_t*)(&BECV) ) == 0 ){ \
  *(uint8_t*)(&val) ^= *(uint8_t*)(&val + 1); \
  *(uint8_t*)(&val + 1) ^= *(uint8_t*)(&val); \
  *(uint8_t*)(&val) ^= *(uint8_t*)(&val + 1); \
}

#define BE_SWAP_32 ( val )

Value:

if( *( (uint8_t*)(&BECV) ) == 0 ){ \
  *(uint8_t*)(&val) ^= *(uint8_t*)(&val + 3); \
  *(uint8_t*)(&val + 3) ^= *(uint8_t*)(&val); \
  *(uint8_t*)(&val) ^= *(uint8_t*)(&val + 3); \
  *(uint8_t*)(&val + 1) ^= *(uint8_t*)(&val + 2); \
  *(uint8_t*)(&val + 2) ^= *(uint8_t*)(&val + 1); \
  *(uint8_t*)(&val + 1) ^= *(uint8_t*)(&val + 2); \
}

#define CALC_PEC	(	p_buf,
		data_len,
		pec_val_inttype,
		pec_val	)

Value:

{\
  pec_val_inttype * p_val;\
  for( p_val = (pec_val_inttype*) p_buf ; (uint8_t*)p_val < ( (uint8_t*)p_buf + data_len); p_val++ )\
    pec_val ^= *p_val;\
}

#define LE_GET	(	dst,
		p_src,
		len	)

Value:

{ \
  dst = *( (uint8_t*) (p_src)  ); \
  if( len > 1 ) \
    dst |= (uint16_t)( *( (uint8_t*) (p_src + 1)  ) ) << 8; \
  if( len > 2 ) \
    dst |= (uint32_t)( *( (uint8_t*) (p_src + 2)  ) ) << 16; \
  if( len > 3 ) \
    dst |= (uint32_t)( *( (uint8_t*) (p_src + 3)  ) ) << 24; \
}

#define LE_SET	(	p_dst,
		src,
		len	)

Value:

{ \
  *( (uint8_t*)p_dst ) = (uint8_t)src; \
  if( len > 1 ) \
    *( (uint8_t*)(p_dst + 1) ) |= (uint8_t)( src >> 8 ); \
  if( len > 2 ) \
    *( (uint8_t*)(p_dst + 2) ) |= (uint8_t)( src >> 16 ); \
  if( len > 3 ) \
    *( (uint8_t*)(p_dst + 3) ) |= (uint8_t)( src >> 24 ); \
}

#define MINFS_RW_MODE_READ 0

#define MINFS_RW_MODE_WRITE 1

#define TC_GET	(	dst,
		p_src,
		len	)

Value:

{ \
  if( len > 2 ) \
    (uint32_t)dst = *((uint32_t*)p_src); \
  else if( len > 1 ) \
    (uint16_t)dst = *((uint16_t*)p_src); \
  else \
    (uint8_t)dst = *((uint8_t*)p_src); \
}

#define TC_SET	(	p_dst,
		src,
		len	)

Value:

{ \
  if( len > 2 ) \
    *((uint32_t*)p_dst) = (uint32_t)src; \
  else if( len > 1 ) \
    *((uint16_t*)p_dst) = (uint16_t)src; \
  else \
    *((uint8_t*)p_dst) = (uint8_t)src; \
}

Function Documentation

int32_t MINFS_FileExists	(	MINFS_fs_t *	p_fs,
		uint32_t	file_id,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_FileGetFreeID	(	MINFS_fs_t *	p_fs,
		uint8_t	mode,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_FileIndexTruncate	(	MINFS_fs_t *	p_fs,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_FileMove	(	MINFS_fs_t *	p_fs,
		uint32_t	src_file_id,
		uint32_t	dst_file_id,
		uint8_t	check_last_truncate,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_FileOpen	(	MINFS_fs_t *	p_fs,
		uint32_t	file_id,
		MINFS_file_t *	p_file,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_FileRead	(	MINFS_file_t *	p_file,
		void *	p_buf,
		uint32_t *	p_len,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_FileSeek	(	MINFS_file_t *	p_file,
		uint32_t	pos,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_FileSetSize	(	MINFS_file_t *	p_file,
		uint32_t	new_size,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_FileTouch	(	MINFS_fs_t *	p_fs,
		uint32_t	file_id,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_FileUnlink	(	MINFS_fs_t *	p_fs,
		uint32_t	file_id,
		uint8_t	check_last_truncate,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_FileWrite	(	MINFS_file_t *	p_file,
		void *	p_buf,
		uint32_t	len,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_FlushBlockBuffer	(	MINFS_fs_t *	p_fs,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_Format	(	MINFS_fs_t *	p_fs,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_FSOpen	(	MINFS_fs_t *	p_fs,
		MINFS_block_buf_t *	p_block_buf
	)

int32_t MINFS_GetBlockBuffer	(	MINFS_fs_t *	p_fs,
		MINFS_block_buf_t **	pp_block_buf,
		uint32_t	block_n,
		uint32_t	file_id
	)

int32_t MINFS_InitBlockBuffer ( MINFS_block_buf_t * p_block_buf )

int32_t MINFS_Read	(	MINFS_fs_t *	p_fs,
		MINFS_block_buf_t *	p_block_buf,
		uint16_t	data_offset,
		uint16_t	data_len
	)

int32_t MINFS_Write	(	MINFS_fs_t *	p_fs,
		MINFS_block_buf_t *	p_block_buf,
		uint16_t	data_offset,
		uint16_t	data_len
	)

modules/minfs/minfs.c File Reference

Defines

Functions

Define Documentation

Function Documentation