Realtek RTL8019AS
[Ethernet]

Collaboration diagram for Realtek RTL8019AS:

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Detailed Description

10 MBit NE2000 compatible controller.

The RTL8019AS chip is used on the Ethernut 1 board.

Modules
	Device eth0
	Realtek 8019AS Ethernet device.
Data Structures
struct	nic_pkt_header
Defines
#define	NICINB(reg)   (*((volatile u_char *)RTL_BASE_ADDR + reg))
#define	NICOUTB(reg, val)   (*((volatile u_char *)RTL_BASE_ADDR + reg) = val)
Functions
void	NicRx (void *arg)
	NIC receiver thread.
int	NicOutput (NUTDEVICE *dev, NETBUF *nb)
	Send Ethernet packet.
int	NicInit (NUTDEVICE *dev)
	Initialize Ethernet hardware.

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Function Documentation

NicRx (  void *  arg  )

NIC receiver thread. It runs with high priority.

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.

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.

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