SMSC LAN91C111

10/100 MBit Ethernet controller. More...

Collaboration diagram for SMSC LAN91C111:

Modules
	LAN91C111 registers
	SMSC LAN91C111 register definitions.
Functions
void	NicRxLanc (void *arg)
	NIC receiver thread.
int	LancOutput (NUTDEVICE *dev, NETBUF *nb)
	Send Ethernet packet.
int	LancInit (NUTDEVICE *dev)
	Initialize Ethernet hardware.
Variables
NUTDEVICE	devSmsc111
	Device information structure.

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Detailed Description

10/100 MBit Ethernet controller.

The LAN91C111 chip is used on the Ethernut 2 board.

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Function Documentation

NicRxLanc

(

void *

arg

)

NIC receiver thread.

References _NUTDEVICE::dev_dcb, _NUTDEVICE::dev_icb, ETHER_IS_UNICAST, ifnet::if_mac, ifnet::if_recv, LANC111_SIGNAL_IRQ, LANC111_SIGNAL_MODE, NICINFO::ni_rx_packets, NICINFO::ni_rx_rdy, nic_inlb, NIC_MSK, nic_outlb, NutEventPost(), NutEventWait(), NutSleep(), NutThreadSetPriority(), and sbi.

Referenced by DmInit(), and LancInit().

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int LancOutput	(	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.

References _NUTDEVICE::dev_dcb, NICINFO::ni_tx_packets, NutEventPost(), NutEventWait(), and rc.

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int LancInit

(

NUTDEVICE *

dev

)

Initialize Ethernet hardware.

Resets the LAN91C111 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().

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.

References cbi, _NUTDEVICE::dev_dcb, LANC111_SIGNAL, LANC111_SIGNAL_IRQ, memset(), NicRxLanc(), NUT_THREAD_LANCRXSTACK, NUT_THREAD_STACK_ADD, NUT_THREAD_STACK_MULT, NutRegisterIrqHandler(), and NutThreadCreate().

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Variable Documentation

NUTDEVICE devSmsc111

Initial value:

 {
    0,                          
    {'e', 't', 'h', '0', 0, 0, 0, 0, 0},        
    IFTYP_NET,                  
    0,                          
    0,                          
    &ifn_eth0,                  
    &dcb_eth0,                  
    LancInit,                   
    LancIOCtl,                  
    0,                          
    0,                          
    0,                          
    0,                          
    0,                          
    0                           
}

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.