Asix AX88796L
[Ethernet]

Collaboration diagram for Asix AX88796L:

Detailed Description

10/100 MBit NE2000 compatible controller.

Highly experimental.


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.


Function Documentation

void Delay16Cycles ( void   ) 

Definition at line 162 of file ax88796.c.

References _NOP, and Delay16Cycles().

Referenced by Delay16Cycles().

uint16_t NicPhyRead ( uint8_t  reg  ) 

Read contents of internel PHY register on 0x10 adress.

Returns:
Contents of the specified register.

Definition at line 223 of file ax88796.c.

References Asix_Read, Asix_Write, CR, and CR_PS0.

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.

Definition at line 258 of file ax88796.c.

References Asix_Read, Asix_Write, CR, and CR_PS0.

void NicRxAsix ( void *  arg  ) 

NIC receiver thread.

Definition at line 788 of file ax88796.c.

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

Referenced by AsixInit().

void NicInterruptEntry ( void   ) 

Definition at line 908 of file ax88796.c.

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.

Definition at line 927 of file ax88796.c.

References _NUTDEVICE::dev_dcb, and NICINFO::ni_tx_packets.

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.

Definition at line 957 of file ax88796.c.

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().


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.

Definition at line 127 of file ax88796.c.


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