soe_request.h File Reference

EtherCAT SoE request structure. More...

Go to the source code of this file.

Data Structures
struct	ec_soe_request_t
	Sercos-over-EtherCAT request. More...
Functions
void	ec_soe_request_init (ec_soe_request_t *)
	SoE request constructor.
void	ec_soe_request_clear (ec_soe_request_t *)
	SoE request destructor.
int	ec_soe_request_copy (ec_soe_request_t *, const ec_soe_request_t *)
	Copy another SoE request.
void	ec_soe_request_set_drive_no (ec_soe_request_t *, uint8_t)
	Set drive number.
void	ec_soe_request_set_idn (ec_soe_request_t *, uint16_t)
	Set IDN.
int	ec_soe_request_alloc (ec_soe_request_t *, size_t)
	Pre-allocates the data memory.
int	ec_soe_request_copy_data (ec_soe_request_t *, const uint8_t *, size_t)
	Copies SoE data from an external source.
int	ec_soe_request_append_data (ec_soe_request_t *, const uint8_t *, size_t)
	Copies SoE data from an external source.
void	ec_soe_request_read (ec_soe_request_t *)
	Request a read operation.
void	ec_soe_request_write (ec_soe_request_t *)
	Request a write operation.

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Detailed Description

EtherCAT SoE request structure.

Definition in file soe_request.h.

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Function Documentation

int ec_soe_request_copy	(	ec_soe_request_t *	req,
		const ec_soe_request_t *	other
	)

Copy another SoE request.

Returns:

Zero on success, otherwise a negative error code.

Parameters:

req	SoE request.
other	Other SoE request to copy from.

Definition at line 90 of file soe_request.c.

int ec_soe_request_alloc	(	ec_soe_request_t *	req,
		size_t	size
	)

Pre-allocates the data memory.

If the mem_size is already bigger than size, nothing is done.

Returns:

0 on success, otherwise -ENOMEM.

Parameters:

req	SoE request.
size	Data size to allocate.

Definition at line 150 of file soe_request.c.

int ec_soe_request_copy_data	(	ec_soe_request_t *	req,
		const uint8_t *	source,
		size_t	size
	)

Copies SoE data from an external source.

If the mem_size is to small, new memory is allocated.

Return values:

	0	Success.
	<0	Error code.

Parameters:

req	SoE request.
source	Source data.
size	Number of bytes in source.

Definition at line 179 of file soe_request.c.

int ec_soe_request_append_data	(	ec_soe_request_t *	req,
		const uint8_t *	source,
		size_t	size
	)

Copies SoE data from an external source.

If the mem_size is to small, new memory is allocated.

Return values:

	0	Success.
	<0	Error code.

Parameters:

req	SoE request.
source	Source data.
size	Number of bytes in source.

Definition at line 203 of file soe_request.c.