Asix AX88796L

10/100 MBit NE2000 compatible controller. More...

Collaboration diagram for Asix AX88796L:

Data Structures
struct	nic_pkt_header
Functions
void	Delay16Cycles (void)
uint16_t	NicPhyRead (uint8_t reg)
	Read contents of internel PHY register on 0x10 adress.
void	NicPhyWrite (uint8_t reg, uint16_t val)
	Write value to PHY register.
void	NicRxAsix (void *arg)
	NIC receiver thread.
void	NicInterruptEntry (void)
int	AsixOutput (NUTDEVICE *dev, NETBUF *nb)
	Send Ethernet packet.
int	AsixInit (NUTDEVICE *dev)
	Initialize Ethernet hardware.
Variables
NUTDEVICE	devAx88796
	Device information structure.

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Detailed Description

10/100 MBit NE2000 compatible controller.

Highly experimental.

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Function Documentation

void Delay16Cycles

(

void

)

References _NOP.

uint16_t NicPhyRead

(

uint8_t

reg

)

Read contents of internel PHY register on 0x10 adress.

Returns:

Contents of the specified register.

References Asix_Read, Asix_Write, CR, CR_PS0, and rc.

void NicPhyWrite	(	uint8_t	reg,
		uint16_t	val
	)

Write value to PHY register.

Note:

NIC interrupts must have been disabled before calling this routine.

Parameters:

reg	PHY register number.
val	Value to write.

References Asix_Read, Asix_Write, CR, and CR_PS0.

void NicRxAsix

(

void *

arg

)

NIC receiver thread.

References _NUTDEVICE::dev_dcb, _NUTDEVICE::dev_icb, devAx88796, ETHER_IS_UNICAST, ifnet::if_mac, ifnet::if_recv, NICINFO::ni_rx_packets, NICINFO::ni_rx_rdy, NutEnterCritical, NutEventWait(), NutExitCritical, NutSleep(), and NutThreadSetPriority().

Referenced by AsixInit().

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void NicInterruptEntry

(

void

)

References IRQ_ENTRY, and IRQ_EXIT.

Referenced by AsixInit().

int AsixOutput	(	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, and rc.

int AsixInit

(

NUTDEVICE *

dev

)

Initialize Ethernet hardware.

Resets the Asix Asix_L 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 _BV, AIC_ICCR, AIC_IDCR, AIC_IECR, AIC_SMR, AIC_SRCTYPE_EXT_NEGATIVE_EDGE, AIC_SVR, _CONFNET::cd_name, _CONFNET::cd_size, _CONFNET::cdn_mac, confnet, _NUTDEVICE::dev_dcb, IRQ0_ID, memset(), NicInterruptEntry(), NicRxAsix(), NutThreadCreate(), outr, and strcpy().

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Variable Documentation

NUTDEVICE devAx88796

Initial value:

 {
    0,                          
    {'e', 't', 'h', '0', 0, 0, 0, 0, 0},        
    IFTYP_NET,                  
    0,                          
    0,                          
    &ifn_eth0,                  
    &dcb_eth0,                  
    AsixInit,                   
    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.

Referenced by NicRxAsix().