coe_emerg_ring.h File Reference

EtherCAT CoE emergency ring buffer structure. More...

Go to the source code of this file.

Data Structures
struct	ec_coe_emerg_msg_t
	EtherCAT CoE emergency message record. More...
struct	ec_coe_emerg_ring_t
	EtherCAT CoE emergency ring buffer. More...

Functions
void	ec_coe_emerg_ring_init (ec_coe_emerg_ring_t *, ec_slave_config_t *)
	Emergency ring buffer constructor.
void	ec_coe_emerg_ring_clear (ec_coe_emerg_ring_t *)
	Emergency ring buffer destructor.
int	ec_coe_emerg_ring_size (ec_coe_emerg_ring_t *, size_t)
	Set the ring size. More...
void	ec_coe_emerg_ring_push (ec_coe_emerg_ring_t *, const u8 *)
	Add a new emergency message.
int	ec_coe_emerg_ring_pop (ec_coe_emerg_ring_t *, u8 *)
	Remove an emergency message from the ring. More...
int	ec_coe_emerg_ring_clear_ring (ec_coe_emerg_ring_t *)
	Clear the ring. More...
int	ec_coe_emerg_ring_overruns (ec_coe_emerg_ring_t *)
	Read the number of overruns. More...

Detailed Description

EtherCAT CoE emergency ring buffer structure.

Definition in file coe_emerg_ring.h.

Function Documentation

ec_coe_emerg_ring_size()

int ec_coe_emerg_ring_size	(	ec_coe_emerg_ring_t *	ring,
		size_t	size
	)

Set the ring size.

Returns

Zero on success, otherwise a negative error code.

Parameters

ring	Emergency ring.
size	Maximum number of messages in the ring.

Definition at line 78 of file coe_emerg_ring.c.

ec_coe_emerg_ring_pop()

int ec_coe_emerg_ring_pop	(	ec_coe_emerg_ring_t *	ring,
		u8 *	msg
	)

Remove an emergency message from the ring.

Returns

Zero on success, otherwise a negative error code.

Parameters

ring	Emergency ring.
msg	Memory to store the emergency message.

Definition at line 135 of file coe_emerg_ring.c.

ec_coe_emerg_ring_clear_ring()

int ec_coe_emerg_ring_clear_ring

(

ec_coe_emerg_ring_t *

ring

)

Clear the ring.

Returns

Zero on success, otherwise a negative error code.

Parameters

ring	Emergency ring.

Definition at line 155 of file coe_emerg_ring.c.

ec_coe_emerg_ring_overruns()

int ec_coe_emerg_ring_overruns

(

ec_coe_emerg_ring_t *

ring

)

Read the number of overruns.

Returns

Number of overruns.

Parameters

ring	Emergency ring.

Definition at line 170 of file coe_emerg_ring.c.