EtherCAT device methods. More...

Functions
int	ec_device_init (ec_device_t device, ec_master_t master)
	Constructor. More...

void	ec_device_clear (ec_device_t *device)
	Destructor. More...

void	ec_device_attach (ec_device_t device, struct net_device net_dev, ec_pollfunc_t poll, struct module *module)
	Associate with net_device. More...

void	ec_device_detach (ec_device_t *device)
	Disconnect from net_device. More...

int	ec_device_open (ec_device_t *device)
	Opens the EtherCAT device. More...

int	ec_device_close (ec_device_t *device)
	Stops the EtherCAT device. More...

static void	pcap_record (ec_device_t device, const void data, size_t size)
	Records a packet in the master's pcap buffer, if there is room. More...

uint8_t *	ec_device_tx_data (ec_device_t *device)
	Returns a pointer to the device's transmit memory. More...

void	ec_device_send (ec_device_t *device, size_t size)
	Sends the content of the transmit socket buffer. More...

void	ec_device_clear_stats (ec_device_t *device)
	Clears the frame statistics. More...

static void	do_gettimeofday (struct timeval *tv)

void	ec_device_poll (ec_device_t *device)
	Calls the poll function of the assigned net_device. More...

void	ec_device_update_stats (ec_device_t *device)
	Update device statistics. More...

void	ecdev_withdraw (ec_device_t *device)
	Withdraws an EtherCAT device from the master. More...

int	ecdev_open (ec_device_t *device)
	Opens the network device and makes the master enter IDLE phase. More...

void	ecdev_close (ec_device_t *device)
	Makes the master leave IDLE phase and closes the network device. More...

void	ecdev_receive (ec_device_t device, const void data, size_t size)
	Accepts a received frame. More...

void	ecdev_set_link (ec_device_t *device, uint8_t state)
	Sets a new link state. More...

uint8_t	ecdev_get_link (const ec_device_t *device)
	Reads the link state. More...

Detailed Description

EtherCAT device methods.

Definition in file device.c.

Function Documentation

◆ ec_device_init()

int ec_device_init	(	ec_device_t *	device,
		ec_master_t *	master
	)

Constructor.

Returns: 0 in case of success, else < 0

Parameters

device	EtherCAT device
master	master owning the device

Definition at line 64 of file device.c.

◆ ec_device_clear()

void ec_device_clear ( ec_device_t * device )

Destructor.

Parameters

device EtherCAT device

Definition at line 163 of file device.c.

◆ ec_device_attach()

void ec_device_attach	(	ec_device_t *	device,
		struct net_device *	net_dev,
		ec_pollfunc_t	poll,
		struct module *	module
	)

Associate with net_device.

Parameters

device	EtherCAT device
net_dev	net_device structure
poll	pointer to device's poll function
module	the device's module

Definition at line 183 of file device.c.

◆ ec_device_detach()

void ec_device_detach ( ec_device_t * device )

Disconnect from net_device.

Parameters

device EtherCAT device

Definition at line 214 of file device.c.

◆ ec_device_open()

int ec_device_open ( ec_device_t * device )

Opens the EtherCAT device.

Returns: 0 in case of success, else < 0

Parameters

device EtherCAT device

Definition at line 243 of file device.c.

◆ ec_device_close()

int ec_device_close ( ec_device_t * device )

Stops the EtherCAT device.

Returns: 0 in case of success, else < 0

Parameters

device EtherCAT device

Definition at line 280 of file device.c.

◆ pcap_record()

static void pcap_record	(	ec_device_t *	device,
		const void *	data,
		size_t	size
	)

static

Records a packet in the master's pcap buffer, if there is room.

Parameters

device	EtherCAT device
data	Packet data
size	Packet size

Definition at line 312 of file device.c.

◆ ec_device_tx_data()

uint8_t* ec_device_tx_data ( ec_device_t * device )

Returns a pointer to the device's transmit memory.

Returns: pointer to the TX socket buffer

Parameters

device EtherCAT device

Definition at line 356 of file device.c.

◆ ec_device_send()

void ec_device_send	(	ec_device_t *	device,
		size_t	size
	)

Sends the content of the transmit socket buffer.

Cuts the socket buffer content to the (now known) size, and calls the start_xmit() function of the assigned net_device.

Parameters

device	EtherCAT device
size	number of bytes to send

Definition at line 375 of file device.c.

◆ ec_device_clear_stats()

void ec_device_clear_stats ( ec_device_t * device )

Clears the frame statistics.

Parameters

device EtherCAT device

Definition at line 419 of file device.c.

◆ ec_device_poll()

void ec_device_poll ( ec_device_t * device )

Calls the poll function of the assigned net_device.

The master itself works without using interrupts. Therefore the processing of received data and status changes of the network device has to be done by the master calling the ISR "manually".

Parameters

device EtherCAT device

Definition at line 536 of file device.c.

◆ ec_device_update_stats()

void ec_device_update_stats ( ec_device_t * device )

Update device statistics.

Parameters

device EtherCAT device

Definition at line 557 of file device.c.

Functions

Detailed Description

Function Documentation

◆ ec_device_init()

◆ ec_device_clear()

◆ ec_device_attach()

◆ ec_device_detach()

◆ ec_device_open()

◆ ec_device_close()

◆ pcap_record()

◆ ec_device_tx_data()

◆ ec_device_send()

◆ ec_device_clear_stats()

◆ ec_device_poll()

◆ ec_device_update_stats()