coe_emerg_ring.c File Reference

EtherCAT CoE emergency ring buffer methods. More...

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

Detailed Description

EtherCAT CoE emergency ring buffer methods.

Definition in file coe_emerg_ring.c.

Function Documentation

ec_coe_emerg_ring_init()

void ec_coe_emerg_ring_init	(	ec_coe_emerg_ring_t *	ring,
		ec_slave_config_t *	sc )

Emergency ring buffer constructor.

Parameters

ring	Emergency ring.
sc	Slave configuration.

Definition at line 38 of file coe_emerg_ring.c.

ec_coe_emerg_ring_clear()

void ec_coe_emerg_ring_clear

(

ec_coe_emerg_ring_t *

ring

)

Emergency ring buffer destructor.

Parameters

ring	Emergency ring.

Definition at line 55 of file coe_emerg_ring.c.

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 70 of file coe_emerg_ring.c.

ec_coe_emerg_ring_push()

void ec_coe_emerg_ring_push	(	ec_coe_emerg_ring_t *	ring,
		const u8 *	msg )

Add a new emergency message.

Parameters

ring	Emergency ring.
msg	Emergency message.

Definition at line 105 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 127 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 147 of file coe_emerg_ring.c.

ec_coe_emerg_ring_overruns()

int ec_coe_emerg_ring_overruns

(

const ec_coe_emerg_ring_t *

ring

)

Read the number of overruns.

Returns

Number of overruns.

Parameters

ring	Emergency ring.

Definition at line 162 of file coe_emerg_ring.c.