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Realtek 8019AS device driver
[Network device drivers.]


Detailed Description

Ethernet device driver.

The RTL8019AS chip is used on the Ethernut 1 board.


Modules

Device eth0
 Realtek 8019AS Ethernet device.


Data Structures

struct  nic_pkt_header
struct  nic_pkt_header

Defines

#define NICINB(reg)
#define NICOUTB(reg, val)

Functions

 NicRx (void *arg)
 NIC receiver thread.

int NicOutput (NUTDEVICE *dev, NETBUF *nb)
 Send Ethernet packet.

int NicInit (NUTDEVICE *dev)
 Initialize Ethernet hardware.


Variables

NUTDEVICE devEth0
 Device information structure.


Function Documentation

int NicInit NUTDEVICE dev  ) 
 

Initialize Ethernet hardware.

Resets RTL8019AS Ethernet controller, initializes all required hardware registers and starts a background thread for incoming Ethernet traffic.

Applications should do not directly call this function. It is automatically executed during during device registration by NutRegisterDevice(). Note, that base address and interrupt number passed to NutRegisterDevice() are silently ignored by this driver for performance reasons. These values can be changed only by using the Nut/OS Configurator to rebuild the system.

If the network configuration hasn't been set by the application before registering the specified device, this function will call NutNetLoadConfig() to get the MAC address.

Parameters:
dev Identifies the device to initialize.

int NicOutput NUTDEVICE dev,
NETBUF nb
 

Send Ethernet packet.

Parameters:
dev Identifies the device to use.
nb Network buffer structure containing the packet to be sent. The structure must have been allocated by a previous call NutNetBufAlloc().
Returns:
0 on success, -1 in case of any errors.

NicRx void *  arg  ) 
 

NIC receiver thread.

It runs with high priority.


Variable Documentation

NUTDEVICE devEth0
 

Device information structure.

A pointer to this structure must be passed to NutRegisterDevice() to bind this Ethernet device driver to the Nut/OS kernel. An application may then call NutNetIfConfig() with the name eth0 of this driver to initialize the network interface.


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