device.c File Reference

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Detailed Description

EtherCAT device methods.

Definition in file device.c.

Go to the source code of this file.

Functions
int	ec_device_init (ec_device_t *device, ec_master_t *master, struct net_device *net_dev, ec_isr_t isr, struct module *module)
	Device constructor.
void	ec_device_clear (ec_device_t *device)
	EtherCAT device destuctor.
int	ec_device_open (ec_device_t *device)
	Opens the EtherCAT device.
int	ec_device_close (ec_device_t *device)
	Stops the EtherCAT device.
uint8_t *	ec_device_tx_data (ec_device_t *device)
	Returns a pointer to the device's transmit memory.
void	ec_device_send (ec_device_t *device, size_t size)
	Sends the content of the transmit socket buffer.
void	ec_device_call_isr (ec_device_t *device)
	Calls the interrupt service routine of the assigned net_device.
void	ecdev_receive (ec_device_t *device, const void *data, size_t size)
	Accepts a received frame.
void	ecdev_link_state (ec_device_t *device, uint8_t state)
	Sets a new link state.

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Function Documentation

int ec_device_init (  ec_device_t *  device, ec_master_t *  master, struct net_device *  net_dev, ec_isr_t  isr, struct module *  module )

Device constructor. Returns: 0 in case of success, else < 0 Parameters: device  EtherCAT device master  master owning the device net_dev  net_device structure isr  pointer to device's ISR module  pointer to the owning module Definition at line 57 of file device.c.

void ec_device_clear (  ec_device_t *  device  )

EtherCAT device destuctor. Parameters: device  EtherCAT device Definition at line 107 of file device.c.

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 121 of file device.c.

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 152 of file device.c.

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 176 of file device.c.

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 189 of file device.c.

void ec_device_call_isr (  ec_device_t *  device  )

Calls the interrupt service routine 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 219 of file device.c.

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