Headerfile for nicdrv.c.
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Detailed Description
Function Documentation
Close sockets used
- Returns:
- 0
uint8 ec_getindex |
( |
void |
| ) |
|
Get new frame identifier index and allocate corresponding rx buffer.
- Returns:
- new index.
int ec_outframe |
( |
uint8 |
idx, |
|
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int |
stacknumber |
|
) |
| |
Transmit buffer over socket (non blocking).
- Parameters:
-
[in] | idx | = index in tx buffer array |
[in] | stacknumber | = 0=Primary 1=Secondary stack |
- Returns:
- socket send result
int ec_outframe_red |
( |
uint8 |
idx | ) |
|
Transmit buffer over socket (non blocking).
- Parameters:
-
[in] | idx | = index in tx buffer array |
- Returns:
- socket send result
void ec_setbufstat |
( |
uint8 |
idx, |
|
|
int |
bufstat |
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) |
| |
Set rx buffer status.
- Parameters:
-
[in] | idx | = index in buffer array |
[in] | bufstat | = status to set |
void ec_setupheader |
( |
void * |
p | ) |
|
Fill buffer with ethernet header structure. Destination MAC is allways broadcast. Ethertype is allways ETH_P_ECAT.
- Parameters:
-
int ec_setupnic |
( |
const char * |
ifname, |
|
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int |
secondary |
|
) |
| |
Basic setup to connect NIC to socket.
- Parameters:
-
[in] | ifname | = Name of NIC device, f.e. "eth0" |
[in] | secondary | = if >0 then use secondary stack instead of primary |
- Returns:
- >0 if succeeded
int ec_srconfirm |
( |
uint8 |
idx, |
|
|
int |
timeout |
|
) |
| |
Blocking send and recieve frame function. Used for non processdata frames. A datagram is build into a frame and transmitted via this function. It waits for an answer and returns the workcounter. The function retries if time is left and the result is WKC=0 or no frame received.
The function calls ec_outframe_red() and ec_waitinframe_red().
- Parameters:
-
[in] | idx | = index of frame |
[in] | timeout | = timeout in us |
- Returns:
- Workcounter or EC_NOFRAME
int ec_waitinframe |
( |
uint8 |
idx, |
|
|
int |
timeout |
|
) |
| |
Blocking receive frame function. Calls ec_waitinframe_red().
- Parameters:
-
[in] | idx | = requested index of frame |
[in] | timeout | = timeout in us |
- Returns:
- Workcounter if a frame is found with corresponding index, otherwise EC_NOFRAME.
Variable Documentation
global error packet counter, ie non EtherCAT packets
global rx packet counter, counts only EtherCAT packets
temporary tx buffer length
global helper var ri count time used in rx socket
global helper var to count time used in tx socket
Primary source MAC address used for EtherCAT. This address is not the MAC address used from the NIC. EtherCAT does not care about MAC addressing, but it is used here to differentiate the route the packet traverses through the EtherCAT segment. This is needed to find out the packet flow in redundant configurations.
Secondary source MAC address used for EtherCAT.